模拟试卷2及答案

合集下载

辅警招聘考试公安基础知识(公安工作的内容和特点)模拟试卷2(题

辅警招聘考试公安基础知识(公安工作的内容和特点)模拟试卷2(题

辅警招聘考试公安基础知识(公安工作的内容和特点)模拟试卷2(题后含答案及解析)题型有:1. 单项选择题 2. 多项选择题 3. 判断题单项选择题1.公安机关保卫国家安全与维护社会治安秩序的任务,主要是通过( )工作实现的。

A.公安指挥B.公安领导C.公安保卫D.公安专业正确答案:D解析:公安机关保卫国家安全和维护社会治安秩序的任务,主要是通过公安专业工作实现的。

知识模块:公安工作的内容和特点2.国家要求警察必须与国体一致、与政体一致、与国家意志一致,成为国家忠诚的统治与管理工具,这是公安工作( )的体现。

A.阶级性B.社会性C.危险性D.群众性正确答案:A解析:从题干中“国体”“政体”不难判断出属于阶级性。

强调警察的阶级性是各个国家必需的,因为警察的概念始终是与阶级国家联系在一起。

知识模块:公安工作的内容和特点3.( )不属于刑事强制工作。

A.拘传B.取保候审C.监视居住D.驱逐出境正确答案:D解析:驱逐出境属于治安行政管理中的外国人管理。

知识模块:公安工作的内容和特点4.机关团体保卫工作不包括对( )的保卫。

A.党中央、国务院的各部门B.省、自治区、直辖市和地、县的党政部门C.工会、共青团、妇联和各民主党派D.高等院校正确答案:D解析:院校属于事业单位保卫工作,不属于机关团体保卫工作。

知识模块:公安工作的内容和特点5.取保候审属于刑事执法工作中的( )。

A.刑事强制工作B.羁押工作C.执行刑罚工作D.刑事侦查工作正确答案:A解析:刑事强制工作指依据《刑事诉讼法》对犯罪嫌疑人所采取的拘传、取保候审、监视居住、拘留和逮捕的工作。

知识模块:公安工作的内容和特点6.犯罪分子是在不同时空出现的,这就决定了公安工作的( )。

A.分散性B.集中性与分散性并重C.以集中性为主,以分散性为辅D.集中性正确答案:A解析:从题干“不同时空”,不难判断题目说的主要是公安工作的分散性。

知识模块:公安工作的内容和特点多项选择题7.公安工作是( )。

行政执法资格中级(行政处罚法)模拟试卷2(题后含答案及解析)_0

行政执法资格中级(行政处罚法)模拟试卷2(题后含答案及解析)_0

行政执法资格中级(行政处罚法)模拟试卷2(题后含答案及解析) 题型有:1. 单项选择题 2. 多项选择题 3. 判断题单项选择题1.限制人身自由的行政处罚权只能由()行使。

A.人民法院B.公安机关C.国务院D.人大常委会正确答案:B 涉及知识点:《行政处罚法》2.行政机关制定的除行政法规和规章以外的其他规范性文件,在设定行政处罚上:()A.对较轻微的处罚有设定权B.经法律、法规的授权后有设定权C.经国务院授权后有设定权D.没有设定权正确答案:D 涉及知识点:《行政处罚法》3.某县质量技术监督局委托该县农业技术推广站对贩卖假种子的单位和个人行使处罚权,技术推广站应当以()名义行使处罚权。

A.县质量技术监督局B.农业技术推广站C.农业技术推广站执法队D.县人民政府正确答案:A 涉及知识点:《行政处罚法》4.某省甲市A县公安局和乙市B县公安局对一起治安违法行为的行政处罚管辖权发生争议,应如何处理?()A.由最先作出行政处罚决定的公安局管辖B.由最先发现治安违法行为的公安局管辖C.由该违法行为发生地的公安局管辖D.由省公安厅指定管辖正确答案:D 涉及知识点:《行政处罚法》5.谭某未经批准在某市B区建楼房,施工期间,B区建设管理部门多次同谭某交涉并劝阻。

谭某拒不理睬,终将房屋建好,用以居住。

B区建设管理部门依法对谭某作出行政处罚,责令其30日内拆除此违章建筑。

谭某不理睬,期满后,B区建设管理所强行将楼房拆除。

拆除过程中未通知谭某到场,对房内物品也未能妥善保管。

致使谭某利益受损、谭某对行政处罚决定不服,可以怎样做?()A.自接到处罚决定书之日起30日内提出行政复议B.自接到处罚决定书之日起一个月内申请行政复议C.自接到处罚决定书之日起60日内提出行政复议申请D.自接到处罚决定书之日起三个月内向法院提起行政诉讼正确答案:C 涉及知识点:《行政处罚法》6.下列行政处罚措施中,可以由规范性文件设定的是:()A.罚款B.没收违法所得C.暂扣或者吊销许可证D.行政拘留正确答案:A 涉及知识点:《行政处罚法》7.根据《行政处罚法》的规定,()不可以设定行政处罚。

2020年全国计算机二级等级考试全真模拟试卷及答案(第二套)

2020年全国计算机二级等级考试全真模拟试卷及答案(第二套)

2020年全国计算机二级等级考试全真模拟试卷及答案(第二套)1. 下列叙述中正确的是A) 一个算法的空间复杂度大,则其时间复杂度也必定大B) 一个算法的空间复杂度大,则其时间复杂度必定小C) 一个算法的时间复杂度大,则其空间复杂度必定小D) 算法的时间复杂度与空间复杂度没有直接关系参考答案:D2. 下列叙述中正确的是A) 循环队列中的元素个数随队头指针与队尾指针的变化而动态变化B) 循环队列中的元素个数随队头指针的变化而动态变化C) 循环队列中的元素个数随队尾指针的变化而动态变化D) 以上说法都不对参考答案:A3. 棵二叉树中共有80个叶子结点与70个度为1的结点,则该二叉树中的总结点数为A) 219B) 229C) 230D) 231参考答案:B4. 对长度为10的线性表进行冒泡排序,最坏情况下需要比较的次数为A) 9B) 10C) 45D) 90参考答案:C5. 构成计算机软件的是A) 源代码B) 程序和数据C) 程序和文档D) 程序、数据及相关文档参考答案:D6. 软件生命周期可分为定义阶段、开发阶段和维护阶段,下面不属于开发阶段任务的是A) 测试B) 设计C) 可行性研究D) 实现参考答案:C7. 下面不能作为结构化方法软件需求分析工具的是A) 系统结构图B) 数据字典(DD)C) 数据流程图(DFD图)D) 判定表参考答案:A8. 在关系模型中,每一个二维表称为一个A) 关系B) 属性C) 元组D) 主码(键)参考答案:A9. 若实体A和B是一对多的联系,实体B和C是一对一的联系,则实体A 和C的联系是A) 一对一B) 一对多C) 多对一D) 多对多参考答案:B10.A) 选择B) 投影C) 交D) 并参考答案:D11. 以下叙述中正确的是A) C语言程序所调用的函数必须放在main函数的前面B) C语言程序总是从最前面的函数开始执行C) C语言程序中main函数必须放在程序的开始位置D) C语言程序总是从main函数开始执行参考答案:D12. C语言程序中,运算对象必须是整型数的运算符是A) &&B) /C) %D) *参考答案:C13. 有以下程序#include <stdio.h>main(){int sum, pad, pAd;sum = pad = 5;pAd = ++sum, pAd++, ++pad;printf("%d\n", pad );}程序的输出结果是A) 5B) 6C) 7D) 8参考答案:B14. 有以下程序#include <stdio.h>main(){int a=3;a+=a-=a*a;printf( "%d\n", a );}程序的输出结果是A) 0B) 9C) 3D) -12参考答案:D15. sizeof( double )是A) 一个整型表达式B) 一个双精度型表达式C) 一个不合法的表达式D) 一种函数调用参考答案:A16. 有以下程序#include <stdio.h>main(){int a=2, c=5;printf( "a=%%d,b=%%d\n", a,c );}程序的输出结果是A) a=2,b=5B) a=%2,b=%5C) a=%d,b=%dD) a=%%d,b=%%d参考答案:C17. 若有定义语句:char a='\82';则变量aA) 说明不合法B) 包含1个字符C) 包含2个字符D) 包含3个字符参考答案:A18. 有以下程序#include <stdio.h>main(){char c1='A', c2='Y';printf( "%d, %d\n", c1,c2 );}程序的输出结果是A) 输出格式不合法,输出出错信息B) 65,89C) 65,90D) A,Y参考答案:B19. 若变量已正确定义for( x=0,y=0; ( y!=99 && x<4 ); x++ )则以上for循环A) 执行3次B) 执行4次C) 执行无限次D) 执行次数不定参考答案:B20. 对于while(!E) s; ,若要执行循环体s,则E的取值应为:A) E等于1B) E不等于0C) E不等于1D) E等于0参考答案:D21. 有以下程序#include <stdio.h>main(){int x;for( x=3; x<6; x++ )printf( (x%2 ) ? ("*%d") :("#%d"),x);printf("\n");}程序的输出结果是A) *3#4*5B) #3*4#5C) *3*4#5D) *3#4#5参考答案:A22. 有以下程序#include <stdio.h>main(){ int a, b;for( a=1,b=1; a<=100; a++ ){ if(b>=20) break;if(b % 3==1) { b=b+3; continue; }b=b-5;}printf("%d\n",a);}程序的输出结果是A) 10B) 9C) 8D) 7参考答案:B23. 有以下程序#include <stdio.h>void fun( int x, int y, int *c, int *d ){ *c = x+y; *d = x-y; }main(){ int a=4, b=3, c=0, d=0;fun ( a, b, &c, &d );printf( "%d %d\n" , c, d );}程序的输出结果是A) 0 0B) 4 3C) 3 4D) 7 1参考答案:D24. 有以下程序#include <stdio.h>void fun( int *p, int *q ){ int t;t = *p; *p = *q; *q=t;*q = *p;}main(){ int a=0, b=9;fun ( &a, &b );printf( "%d %d\n" , a,b );}程序的输出结果是A) 9 0C) 9 9D) 0 9参考答案:C25. 有以下程序#include <stdio.h>main(){ int a[ ]={ 2,4,6,8,10 }, x, *p, y=1;p = &a[1];for( x=0; x<3; x++ ) y += *(p+x);printf( "%d\n",y );}程序的输出结果是A) 13B) 19C) 11D) 15参考答案:B26. 有以下程序#include <stdio.h>main()int i, x[3][3] = { 1,2,3,4,5,6,7,8,9 };for( i=0; i<3; i++ )printf( "%d ", x[i][2-i] );printf( "\n" );}程序的输出结果是A) 1 5 0B) 3 5 7C) 1 4 7D) 3 6 9参考答案:B27. 设有某函数的说明为int* func(int a[10], int n);则下列叙述中,正确的是A) 形参a对应的实参只能是数组名B) 说明中的a[10]写成a[]或*a效果完全一样C) func的函数体中不能对a进行移动指针(如a++)的操作D) 只有指向10个整数内存单元的指针,才能作为实参传给a参考答案:B28. 有以下程序#include <stdio.h>char fun( char *c ){if ( *c<='Z' && *c>='A' )*c -= 'A'-'a';return *c;}main(){char s[81], *p=s;gets( s );while( *p ){*p =fun( p );putchar( *p );p++;}printf( "\n");}若运行时从键盘上输入OPEN THE DOOR<回车>,程序的输出结果是A) OPEN THE DOORB) oPEN tHE dOORC) open the doorD) Open The Door参考答案:C29. 设有定义语句:char *aa[2]={ "abcd","ABCD"};则以下叙述正确的是A) aa[0]存放了字符串"abcd"的首地址B) aa数组的两个元素只能存放含有4个字符的一维数组的首地址C) aa数组的值分别是字符串"abcd"和"ABCD"D) aa是指针变量,它指向含有两个元素的字符型数组参考答案:A30. 有以下程序#include <stdio.h>int fun( char *s ){ char *p=s;while (*p !=0 ) p++;return ( p-s );}main(){ printf( "%d\n", fun( "goodbey!" ) ); }程序的输出结果是A) 0B) 6C) 7D) 8参考答案:C31. 有以下程序#include <stdio.h>int fun( int n ){ int a;if( n==1 ) return 1;a = n + fun( n-1 );return ( a );}main(){ printf( "%d\n", fun( 5 ) ); }程序的输出结果是A) 9C) 10D) 15参考答案:D 32. 有以下程序#include <stdio.h>int d=1;void fun( int p ) {int d=5;d += p++;printf("%d ", d ); }main(){int a=3;fun( a );d += a++;printf("%d\n",d); }程序的输出结果是B) 9 6C) 9 4D) 8 5参考答案:A 33. 有以下程序#include <stdio.h>int fun(intA){int b=0;static int c=3;a =( c++,b++);return ( a );}main(){int a = 2, i, k;for( i=0; i<2; i++ )k = fun(a++);printf( "%d\n",k ); }程序的输出结果是A) 4B) 0C) 1D) 2参考答案:B34. 有以下程序#include <stdio.h>main(){ char c[2][5]={ "6934", "8254" },*p[2] ;int i, j, s=0;for( i=0; i<2; i++ ) p[i]=c[i];for( i=0; i<2; i++ )for( j=0; p[i][j]>0 && p[i][j]<='9'; j+=2 )s = 10*s + p[i][j] - '0';printf( "%d\n" ,s );}程序的输出结果是A) 693825B) 69825C) 63825D) 6385参考答案:D35. 有以下程序#include <stdio.h>#define SQR(X) X*Xmain(){int a=10, k=2, m=1;a /= SQR(k+m)/SQR(k+m);printf("%d\n",a);}程序的输出结果是A) 0B) 1C) 9D) 10参考答案:B36. 有以下程序#include <stdio.h>main(){ char x=2, y=2, z;z=( y<<1 )&( x>>1 );printf( "%d\n",z );}程序的输出结果是A) 1B) 0C) 4D) 8参考答案:B37. 有以下程序#include <stdio.h>struct S{ int a;int b; };main(){ struct S a, *p=&a;a.a=99;printf( "%d\n" , __________ );}程序要求输出结构体中成员a的数据,以下不能填入横线处的内容是A) a.aB) *p.aC) p->aD) (*p).a参考答案:B38. 有以下程序#include <stdio.h>#include <stdlib.h>void fun( double *p1,double *p2,double *s){ s = (double *)calloc( 1,sizeof(double) );*s = *p1 + *( p2+1 );}main(){ double a[2] = { 1.1, 2.2 }, b[2] = { 10.0, 20.0 }, *s=a;fun( a, b, s );printf( "%5.2f\n", *s);}程序的输出结果是A) 21.10B) 11.10C) 12.10D) 1.10参考答案:D39.A) p=p->next; s ->next=p; p->next=s;B) s ->next='\0'; p=p->next; p->next=s;C) p=p->next; s ->next=p->next; p->next=s;D) p=(*p).next; (*s ).next=(*p).next; (*p).next=s;参考答案:A40. 若fp已定义为指向某文件的指针,且没有读到该文件的末尾,则C语言函数feof(fp)的函数返回值是A) EOFB) 非0C) -1D) 0参考答案:D。

大学英语B模拟试卷(二)及答案解析

大学英语B模拟试卷(二)及答案解析

大学英语B模拟试卷(二)及答案解析一、交际用语共5题,15分1.— Please help yourself to the seafood.— ________A.No, I can't.B.Sorry, I can’t help.C.Well, seafood don’t suit.D.Well, I'm afraid I don't like seafood.正确答案:D解析:主要考查情景交际, Well, I'm afraid I don't like seafood. 我恐怕我不喜欢吃海鲜。

第一句:Please help yourself to the seafood.随意吃些海鲜吧。

D项回答是比较委婉有礼貌的回答:Well, I'm afraid I don't like seafood. 我恐怕我不喜欢吃海鲜。

A. No, I can't. 不,我不能。

B. Sorry, I can’t help.对不起,我不能帮忙。

C. Well, seafood don’t suit.海鲜不合适。

A项回答不礼貌,B项和C项不符合。

2.— Would you like to go to the concert with us this evening?— ________A.No, I already have plans.B.I'd love to, but I'm busy tonightC.No, I really don't like being with you.D.I'm ill, so I shouldn't go out.正确答案:B解析:主要考查情景交际, I'd love to, but I'm busy tonight我很想去,但我今晚有事。

题干的意思是:你今晚愿意和我们一起参加音乐会吗?四个选项都有否定不去的意思,但是B项是一种委婉有礼貌的回答,故选B。

《计算机应用基础》模拟试卷二(含答案)

《计算机应用基础》模拟试卷二(含答案)

专业班姓名成绩《计算机应用基础》模拟试卷二说明:1、本试题共5道大题,考试时间120分钟。

2、请将答案写在试卷指定的位置,否则将不得分。

一. 填空题(请将正确的答案填写在试题相应的位置上。

)1. 计算机网络最显著的特征是。

2. 函数SUM(B5:F5)相当于用户输入公式。

3. 常见的打印机有打印机、打印机和打印机3类。

4. CPU的中文意思是。

5. 窗口排列有______、纵向平铺和横向平铺3种方式。

6. 智能ABC输入法状态栏框表示处于________输入状态。

7. 局域网硬件中占主要地位的是。

8. IP地址采用分层结构,由和主机地址组成。

9. 在浏览器中,默认的协议是。

10. 在Excel中,一个工作簿中默认有张工作表,最多可有张工作表。

11. 如果某一单元格中的文本前面总有删除不掉的空格,那可能是因为。

12. 打印页码3,7,11,17~20表示打印的是。

13. 接入Internet的计算机必须共同遵守协议。

14. 复制文本排版格式可以单击工具栏上按钮,也可以用快捷来实现。

15. 第一台电子计算机的名字是,诞生与年。

16. 如果要在不同页的页眉页脚区放置不同的内容,应在对话框中设置。

17. 下述()不是Internet国际互联网的译名。

A.因特网B.交互网C.网际网D.诺威网18. 中央处理器的英文缩写是,由和组成。

19. 计算机语言有语言、语言和语言3类。

20. 微型计算机是由、和接口部件构成的。

二. 单选题(请将正确答案的序号填写在试题对应的括号内。

)1. 在Excel 2007中,若在A2单元格中输入“8^2”则显示结果为()。

A.16B.64C.=8^2D.8^22. 计算机能直接执行的程序是。

A.源程序B.机器语言程序C.高级语言程序D.汇编语言程序3. 目前的计算机都是基于冯·诺依曼提出的原理。

A.二进制数B.布尔代数C.开关电路D.存储程序4. PowerPoint 提供的幻灯片版式设计主要是为幻灯片设置。

大学英语四级模拟试卷二及参考答案

大学英语四级模拟试卷二及参考答案

⼤学英语四级考试全真预测试卷 Model Test TwoPart I Writing(30 minutes)Directions: For this part, you are allowed 30 minutes to write a composition on the topic Should Smoking Be Completely Banned. You should write at least 120 words following the outline given below in Chinese:1. 有⼈赞同完全禁⽌吸烟,理由是……2. 有⼈不赞同完全禁⽌吸烟,理由是……3. 我的看法。

Should Smoking Be Completely BannedPart II Reading Comprehension (Skimming and Scanning)(15 minutes)Directions: In this part, you will have 15 minutes to go over the passage quicklyand answer the questions on Answer Sheet 1.For questions 1-7,choose the best answer from the four choices marked [A],[B],[C]and [D]. For questions 8-10,completethe sentences with the information given in the passage.Space Our Future in Space: It Has Already Begun!We are all space travelers. But we’ve stayed close to home until now. One day,we may leave our “mother ship”Earth to make our home among the stars.A giant, spherical “spaceship”, about 8,000 miles in diameter, is speedingthrough the solar system right now. It is cruising at an incredible 66,600 milesper hour.It’s not a giant, Star Wars mother ship. It’s spaceship Earth, the home ofover four billion people. This water coated spaceship has been traveling throughthe universe for about five billion years. Only within the past 25 years, however,have some of its passengers broken free of Earth’s gravityBut 25 years from now, many people, including you, might live in an orbitingspace station 200 miles above the Earth.Space CitiesScientists have already designed special space factories. These factories will take advantage of the absence of gravity (zero gravity) to produce everything from life saving drugs to perfect ball bearings.Other scientists have designed space colonies, complete with farms, schools,and artificial day and night. Hundreds, or even thousands, of people will live, work,play—even go toschool, far above the Earth.Our conquest of space, of course, has already begun. We have explored part of the Moon, sent robot spaceships onto the surface of Venus and Mars, and aimed space probes past the planets of Jupiter and Saturn.Last June, one robot ship, Pioneer 10, left our solar system forever. Andastronauts from both the Soviet Union and the United States have lived in spacestations.The conquest of space, without question, is one of the greatest adventures human beings have ever set out on. But it may be more than a great adventure. Some scientiststhink the conquest of space may be a necessity for survival of the human species.We are tearing up more and more of the Earth to get raw materials for industry.And we are polluting the air and water as we manufacture products that we need or want. Almost everything that seems to make our lives more comfortable, and fromelectricity to pesticides, uses up or alters a piece of our planet’s natural environment.Why Go into Space?Yet our solar system is full of resources. The moon is chockfull of valuable metals. So are the asteroids, the small, rocky, planet like bodies orbiting the sun most of them between Mars and Jupiter. These metals, if we can get them, could be used to build factories and space stations.Also, in space, there is no atmosphere to filter out the sun’s energy. There is plenty of solar energy to be turned into electricity for manufacturing, for creating comfortable living conditions.Getting away from Earth has other advantages, too. Modern industry uses manykinds of metal alloys (mixtures of metal thatare better for certain purposes thanpure metals). Yet some metal alloys either can’t be made or are very expensive to make on Earth because of gravity. For instance, certain metals don’t mix well onEarth. But in zero gravity, molten (hot, liquid) metals mix more evenly. This is because there is no gravity to pull the heavier metals down, while the lighter ones float on top.From space, too, we can look down on the Earth and study the atmosphere, its weather, and the effects of air pollution.And because there is no strong gravity to break free from, our future homes away from Earth will be convenient starting points for travel to distant planets.But, while going into space might solve some problems, outer space can also be a dangerous place. For example, in outer space, we have to protect ourselves from the dangers of ultraviolet light and cosmic rays. Ultraviolet light from the sun can give us bad sunburns right here on Earth. Yet, Earth’s atmosphere screens out most of that harmful radiation. Cosmic rays are tiny high energy particles from outer space. Again, the Earth shields us from most of them.At Home in Space?But in space, without special protection, we would be exposed to much stronger radiation from ultraviolet light and cosmic rays. Also, in the zero gravity of outer space, our bones will lose calcium and become weaker. This will be more of a problem the longer people stay out in space. Doctors are looking for a way to keep our bones from losing calcium in outer space. And a small spaceship just might “drive you batty” after a while. But even on a short trip in outer space, you might not feelas well as you’d like to. Space travel could make you seasick!Yet, these risks won’t keep people from going into space. Eventually, an Earth like environment will be built in space. And they will be populated by people with many different interests: medicine, construction, farming, teaching, mining, and so on.The next hundred years will be filled with other worldly adventures, exciting scientific discoveries, and danger, as humans leave Earth—perhaps forever.Aging in SpaceSuppose a space traveler is moving at a velocity of 186,200 miles per second.For every hour that passes for him, 30 hours pass on Earth. If he travels for a year in this fashion (having accelerated instantaneously) and then turns around and comes back at this speed (having turned around instantaneously), he will find that while he has seemed to himself to have traveled two years, the men on Earth would claim he had been absent for 30 years.Suppose the space traveler had left at the age of 30, leaving behind a twin brother also aged 30. When he returned he would be 32, but his stay at home twinbrother would be 60. That is why the “clock paradox”, is sometimes called the “twin paradox”.Of course it takes quite a long while to accelerate to a high speed, and a long while to make a turn and head back again, so conditions aren’t quite as clear cut as just described.1.The giant, spherical spaceship mentioned in the passage is.[A]the outer space[B]a man made spaceship[C]the planet Earth[D]the Star Wars mothe ship2.Some persons have traveled into outer space after conquering within the past 25years.[A]the universe[B]Earth’s gravity[C]the earth[D]outer space3.We have explored or sent robot spaceships to the following space except.[A]the moon[B]Venus[C]Jupiter[D]Mars4.Why is the conquest of space more than a great adventure?[A]Because it is full of challenges for human beings.[B]Because it may be necessary for human beings to survive.[C]Because it is the greatest adventure in human history.[D]Because it is more exciting than any other adventures.5.The moon and the asteroids are alike with respect to their .[A]size and moving ways[B]comfortable living conditions[C]rich and valuable metals[D]solar energy6.Why can’t ultraviolet light scorch our skin on Earth as seriously as it does in space places?[A]Because the Earth’s atmosphere can make ultraviolet light less harmful.[B]Because ultraviolet can’t reach the Earth at all.[C]Because the Earth is far away from those planets radiating ultraviolet light.[D]Because other space places is near from those planets radiating ultravioletlight.7.In spite of many risks, scientists will finally build in space suitable for humans to live.[A]an environment without ultraviolet light[B]a lot of homes[C]an Earth like environment[D]an environment with atmosphere8.The reason some metal alloys can’t be made on Earth is that the heavier metals together with the lighter ones.9.In space, there is no atmosphere to filter out the sun’s energy. There is plentyof solar energy to be turned into, for creating comfortable living conditions.10.According to the author, will be caused to a man in gravity free space.Part III Listening Comprehension(35 minutes)Section ADirections: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be askedabout what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked [A], [B], [C]and [D], and decide which is the bestanswer. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.11.[A]Tennis equipment.[B]Volleyball equipment.[C]Football equipment.[D]Basketball equipment.12.[A]He must meet his teacher.[B]He must attend a class.[C]He must go out with his girlfriend.[D]He must stay at school to finish his homework.13.[A]It’s not as good as it was.[B]It’s better than it used to be.[C]It’s better than people say.[D]It’s even worse than people say.14.[A]Because he doesn’t like football.[B]Because Maria fell ill.[C]Because he didn’t have the time.[D]Because Maria can’t stand football.15.[A]A temporary job.[B]A permanent job.[C]Some money for the vacation.[D]Some money for the university fees.16.[A]The woman did most of the talking.[B]The man did most of the talking.[C]The woman was wearing a black sweater.[D]The man and the woman had dark hair.17.[A]A sunny day. [B]A raincoat.[C]An attractive hut. [D]A lovely hat.18.[A]Librarian and student. [B]Operator and caller.[C]Boss and secretary.[D]Customer and repairman. Questions 19 to 22 are based on the conversation you have just heard.19.[A]The benefits of strong business competition.[B]A proposal to lower the cost of production.[C]Complaints about the expense of modernization.[D]Suggestions concerning new business strategies.20.[A]It costs much more than its worth.[B]It should be brought up to date.[C]It calls for immediate repairs.[D]It can still be used for a long time.21.[A]The personnel manager should be fired for inefficiency.[B]A few engineers should be employed to modernize the factory.[C]The entire staff should be retrained.[D]Better educated employees should be promoted.22.[A]Their competitors have long been advertising on TV.[B]TV commercials are less expensive.[C]Advertising in newspapers alone is not sufficient.[D]TV commercials attract more investments.Questions 23 to 25 are based on the conversation you have just heard.23.[A]Searching for reference material.[B]Watching a film of the 1930s’.[C]Writing a course book.[D]Looking for a job in a movie studio.24.[A]It’s too broad to cope with. [B]It’s a bit outdated.[C]It’s controversial.[D]It’s of little practical value.25.[A]At the end of the online catalogue.[B]At the Reference Desk.[C]In the New York Times.[D]In the Reader’s Guide to Periodical Literature.Section BDirections: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked [A], [B], [C]and [D].Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 26 to 28 are based on the passage you have just heard.26.[A]The liberation movement of British women.[B]Rapid economic development in Britain.[C]Changing attitudes to family life.[D]Reasons for changes in family life in Britain.27.[A]Because millions of men died in the war.[B]Because women had proved their worth.[C]Because women were more skillful than men.[D]Because factories preferred to employ women.28.[A]The concept of “the family”as a social unit.[B]The attitudes to birth control.[C]The attitudes to religion.[D]The ideas of authority and tradition.Passage TwoQuestions 29 to 31 are based on the passage you have just heard.29.[A]Synthetic fuel. [B]Solar energy.[C]Alcohol.[D]Electricity.30.[A]Air traffic conditions. [B]Traffic jams on highways.[C]Road conditions.[D]New traffic rules.31.[A]Go through a health check. [B]Take little luggage with them.[C]Arrive early for boarding. [D]Undergo security checks.Passage ThreeQuestions 32 to 35 are based on the passage you have just heard.32.[A]Washing plates. [B]Clearing tables.。

2023届上海市上海中学高三模拟卷练习二英语试卷(含答案)

2023届上海市上海中学高三模拟卷练习二英语试卷(含答案)

高考英语上海卷模拟试卷(二)考生注意:1.考试时间120分钟,试卷满分140分。

2.本考试设试卷和答题纸两部分。

第I卷(共90分)I. Listening Comprehension (25 分)Section A (每题1分,共10分)Directions: In Section A, you will hear ten short conversations between two speakers. At the end of each conversation, a question will be asked about what was said. The conversations and the questions will be spoken only once. After you hear a conversation and the question about it, read the four possible answers on your paper, and decide which one is the best answer to the question you have heard.II. Grammar and Vocabulary (每题1 分,共20 分)Section ADirections: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, used one word that best fits each blank.An implant that can cool nerves to block pain signals has been unveiled by researchers who say the device could offer an alternative to drugssuch as opioids (类鸦片活性肽).The team behind the device say it could bring benefits for management of acute pain such as (21)_______ experienced after amputations (截肢)or nerve grafts."We are optimistic that this represents a very promising starting point for an engineering approach (22)_______ treating pain,” said Prof John Rogers of Northwestern University in the US, a co-author of the research. But he cautioned that it might be some time (23) _______ they were available to patients. "As with any implantable device, the regulatory process can be slow, typically (24) _______ (involve) much more extensive animal model studies over a period of years," he said.Writing in the journal Science, the team report that the device to block pain signals, which (25) _______(test) only on rats so far, involves a pump, external control system and an implant made from a soft, rubbery substance. The latter forms a sealed collection of tiny channels which form a twisting path in the part of the implant that sits around the target nerve like a cuff.When liquid coolant and dry nitrogen flow through the implant, the liquid causes a drop in temperature. An electronic sensor in the device allows the temperature at the nerve (26) _______(keep) constant."All body processes are based on metabolic chemical reactions, motions of ions and flows of fluids--all (27) _______slow down as a result ofcooling,” said Rogers. “ The net effect when cooling is applied to a nerve is in blocking of electrical signals."Among their experiments, the team tracked two rats with an injury, recording over a three- week period the minimum force that (28)_______be applied to the hind paw to cause the animal to retract (缩回)it. This data was then compared against three rats who were similarly injured but also had the implant. The results suggest bouts of cooling of the injured nerve from 37℃ to 10℃led to (29) _______(severe) pain, with a sevenfold increase in the force that could be applied to the paw. The team say the implant’s benefits include (30)_______, in contrast to opioids, it is not addictive. As the implant is made with water-soluble and biocompatible materials, it can break down in the body after use. The implant could be inserted as an extension of the patient’s initial surgery.Section BDirections: Complete the following passage by using the -words in the box. Each word can only be used once. Note that there is one more word than you need.A. attachedB. bottle-fedC. confusionD. invisibleE. originallyF. orphanedG. partneringH. procedureI. reproducedJ. subjectsK. unintentionallySaving Baby BearsReacting to the auditory assault of barking dogs, shouts and rifle blasts, a 168-pound American black bear shot out and hightailed (迅速逃走)it into the woods off a logging road.His sister, weighing in at 135 pounds, took a little more time to overcome her fear and (31) _______ before she, too, ran for the trees and away from the humans who had driven more than 100 miles to witness the bears’ return to the wild.The cubs were the 106th and 107th (32) _______ or injured bears to be raised or treated at the Progressive Animal Welfare Society (PAWS) Wildlife Center in Washington state, then released months later in the same general area where they were (33) _______found. Fitted with GPS collars and tattooed with identification numbers on their gums, the bears are also among the latest (34) _______of a long-term research study being conducted by Rich Beausoleil and Lindsay Welfelt, both biologists and bear and cougar specialists.The siblings were only two weeks old when a forest worker and his dog (35) _______ disturbed their den in February 2020, scaring away their mother. She never returned.The worker contacted the WDFW, an agency (36) _______with PAWS to rehabilitate sick, injured wild animals before releasing them back into their natural habitats."Their eyes and ears weren't open, and their teeth hadn't evenerupted,Jennifer Convy, PAWS senior director of wildlife, said of the cubs, which each weighed less than 2 pounds when they arrived and were the youngest ever to be raised at the center.Though (37) _______at first, the cubs weren't cuddled. Instead, their caregivers wore bear- scented bear suits during feedings once the cubs' eyes had opened. At PAWS, the staff and volunteers take pains to be (38)_______to all the animals in their care."They don't see us, ever. We don't talk to them. We don't name the animals because we don't want our staff or volunteers to get (39)_______,“ Convy said. After more than a year, the bear siblings were released.The wildlife biologists are studying how the bears raised at PAWS fare after their release, compared to their wild-reared brethren. One cub released in 2017 had her first litter of cubs in January."We've been to her den several times." Beausoleil said. "She (40)_______ and had cubs of her own ... This was kind of a turning point for us."After all, the whole point of PAWS' rehabilitation "is to protect and perpetuate (使持续) the species," he said.III. Reading Comprehension (45 分)Section A (每题1分,共15分)Directions: For each blank in the following passage there are four wordsor phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.The Other da Vinci CodeFor centuries, two of the most intriguing questions about Leonardo da Vinci's "Mon a Lisa" were "Who " and "When ”A(n) (41) _______made at Heidelberg University in 2005 pretty much answered both. A note written in a manuscript in the library (42) _______the account of da Vinci's first biographer, Giorgio Vasari: that the sitter was a merchanfs wife, Lisa Gherardini. The note also helped date the masterpiece to between 1503 and 1506.A(n) (43)_______ mystery-"Where "- is still in dispute. But on June 3rd a French engineer, Pascal Cotte, declared that he and a collaborator had (44) _______the landscape in the background of the painting. Arguments had (45)_______ been made for stretches of countryside in the Marche region and between Milan and Genoa. During a presentation in Vinci, near Florence, Mr Cotte maintained that the artist was more plausibly depicting a part of his native Tuscany 一one that keenly interested him at the time. According to this theory, da Vinci represented the area not as it was, but as, in an unrealised scheme, he (46) _______ it to be.Mr Cotte, who was asked by the Louvre (where the "Mona Lisa" hangs) to create a digital image of the painting, is the inventor of themultispectral camera: a device that can detect not only the drawing below the (47) _______of an oil painting, but also, where they exist, intermediate layers of work. It was among these, under what appears to be a pointed rock, that he found a(n) (48) _______sketch showing that da Vinci meant it to represent a castellated tower.The landscape of the "Mona Lisa" also includes a huge overhanging cliff. That is (49)_______ to one that da Vinci included in a sketch of a fortress (堡垒)contested by Pisa and Florence in the war that flared between them in 1503 (around the time he was painting Gherardini). The (50)_______ with the nearby cliff ——and a tower, known as the Caprona tower 一all overlook the river Amo as it snakes from Florence to Pisa. All three also feature in drawings made by da Vinci to illustrate a plan about which, says Mr Cotte, he became “(51) _______”.This involved diverting the Amo to (52) _______Pisa's water supply and give Florence an outlet to the Mediterranean. In the early 1500s, with the two citystates at war, the idea was under active consideration. Mr Cotte argues that a(n) (53) _______ winding through desolate countryside at the right of the "Mona Lisa" is too wide to be a road, as some have speculated, and is(54) _______the driedup bed of the Amo as da Vinci envisaged (设想)it once his plan had been adopted.It never was. But if Mr Cotte's theory is right, it might just explain why Gherardini, a Florentine, exhibits such a contented, if mysterious, (55)_______。

大学英语四级精选模拟试卷及答案(2)

大学英语四级精选模拟试卷及答案(2)

大学英语四级考试精选模拟试卷(2)Part I Reading Comprehension(共20小题,每小题2分,共40分)Directions:In this part there are four passages.Each passage is followed by four comprehension questions.Read the passage and answer the questions.Then mark your answer on the Answer Sheet.Passage1Questions1to5are based on the following passage:In Washington D.C.,1600Pennsylvania Avenue is a very special address.It is the address of the White House,the home of the president of the United States.Originally the White House was gray and was called the Presidential Palace.It was built from 1792to1800.at this time,the city of Washington itself was being built;it was to be the nation’s new capital city.George Washington,the first president,and Pierre Charles L’Enfant,a French engineer,chose the place for the new city.L’Enfant then planned they city.The president’s home was an important part of the plan.A contest was held to pick a design for the president’s home.An architect named James Hoban won.He designed a large three-story house of gray stone.President Washington never lived in the President Palace.The first president to live there was John Adams,the second president of the United States,and his wife Mrs.Adams did not really like hew new house.In her letters,she often complained about the cold.Fifty fireplaces were not enough to keep the house warm!In1812the United States and Britain went to war.In1814the British invaded Washington.Theu burned many buildings,including the Presidential Palace.After the war James Hoban,the original architect,partially rebuilt the president’s homes.To cover the marks of the fire,the building was painted white.Before long it became known as the White House.The White House is one of the most popular tourist attractions in the United States.Every year more than1.5million visitors go through the five rooms that are open to the public.1.The White House was built in Washington.A.because a French engineer was invited to design itB.because President George Washington liked to live in itC.because the British invaders lived in it in1812-1814D.because it was to be the nation’s capital city2.The Presidential Palace was.A.painted gray and whiteB.made of gray stoneC.made of white stoneD.made very warm in winter3.The president’s home and the city of Washington were.A.built by the American armyB.built by the British troopsC.planned by George WashingtonD.planned by the French4.The original home of the president needed to be rebuilt.A.because John Adam’s wife did not like itB.because it was cold in winter even with50fireplacesC.because it had burned down during the warD.because George Washington was not willing to live in it5.The new presidential home was painted white to.A.cover the marks of fireB.attract tourist from FranceC.to please Mrs.John AdamsD.keep it warm in winterPassage2Questions6to10are based on the following passage:There are two kinds of memory:shot-term and rmation in long-term memory can be remembered at a later time when it is needed.The information may be kept for days or weeks.However, information over and over.The following experiment shows how short-term memory has been studied.Henning studied how students who are learning English as a second language remember vocabulary. The subjects in his experiment were75college students.They represented all levels of ability in English:beginning,intermediate,and native-speaking students.To begin,the subjects listened to a recording of a native speaker reading a paragraph in English. Following the recording,the subjects took a15-question test to see which words they remembered, each question had four choices.The subjects had to circle the word they had heard in the recording. Some of the questions had four choices that sound alike.For example,weather,whether,wither, and wetter are four words that sound alike.Some of the questions had four choices that have the same meaning.Method,way,manner,and system would be four words with the same meaning.Finally the subjects took a language proficiency test.Henning found that students with a lower proficiency in English made more of their mistakes on words that sound alike;students with a higher proficiency made more of their mistakes on words that have the same meaning.Henning’s results suggest that beginning students hold the sound of words in their short-term memory,and advanced students hold the meaning of words in their short-term memory.6.Henning made the experiment in order to study.A.how students remember English vocabulary by short-term memoryB.how students learn English vocabularyC.how to develop students’ability in EnglishD.how long information in short-term memory is kept7.Which of the following statements is TRUE according to the passage?rmation in short-term memory is different from that in long-term memory.B.Long-term memory can be achieved only by training.C.It is easier to test short-term memory than long-term memory.D.Henning gave a separate test on vocabulary to his students.8.From Henning’s result we can see that.A.beginners have difficulty distinguishing the pronunciation of wordsB.advanced students remember words by their meaningC.it is difficult to remember words that sound alikeD.it is difficult to remember words that have the same meaning9.The word“subjects”in the passage means.A.memoryB.the theme of listening materialC.a branch of knowledge studiedD.the students experimented onPassage3Questions11to15are based on the following passage:The cowboy is the hero of many movies,.He is,even today,a symbol of courage and adventure. But what was the life of the cowboy really like?The cowboy’s job is clear from the word cowboy.Cowboy were men who took care of cows and other cattle.The cattle were in the West and in Texas.People in the cities of the East wanted beef these cattle.Trains could take the cattle east.But first the cattle had to get to the trains. Part of the cowboy’s job was to take the cattle hundreds of miles to the railroad town.The trips were called cattle drivers.A cattle drive usually took several months.Cowboys rode for sixteen hours a day.Because they rode so much,each cowboy brought along about eight horses.A cowboy changed horses several times each day.The cowboys had to make sure that cattle arrived safely.Before starting on a drive,the cowboys branded the cattle.They burned a mark on the cattle to show who they belonged to.But these marks didn’t stop rustlers,or cattle thieves.Cowboys had to protect the cattle from rustlers.Rustlers made the dangerous trip even more dangerous.Even though their work was very difficult and dangerous,cowboys did not earn much money.They were paid badly.Yet cowboys liked their way of life.They lived in a wild and open country.They lived a life of adventure and freedom.11.A cowboy is a symbol of.A.courage and adventureB.a hard life and big payC.movies in the pastD.cows and other cattle12.The cowboys’job was.A.to be a hero in real lifeB.to be a hero of the movieC.to take care of cattleD.to be a dangerous rustler13.During a cattle driver,cowboys took a group of cows from a wild and open country to.A.the West states and TexasB.the cities of the East StatesC.the people who eat beef in citiesD.the railroad towns hundred miles away14.On their way of cattle drivers,the cowboys protected the cattle by.A.burning a mark on their cowsB.keeping an eye on cattle thievesC.making the trip more dangerousD.looking after eight cows each person15.Cowboys enjoyed themselves because.A.they liked their way of lifeB.they made a lot of moneyC.they had a vary difficult jobD.they were heroes in moviesPassage4Questions16to20are based on the following passage:Successful innovations have driven many older technologies to extinction and have resulted in higher productivity,greater consumption of energy,increased demand of raw materials,accelerated flow of materials through the economy and increased quantities of metals and other substances in use each person.The history of industrial development abounds with examples.In1870,horses and mules were the prime source of power on U.S.farms.One horse or mule was required to support four human beings a ratio that remained almost constant for many decades. At that time,had a national commission been asked to forecast the population for1970,its answer probably would have depended on whether its consultants were of an economic or technological turn of mind.Had they been“economists”,they would probably have projected the1970horses or mule population to be more than50million.Had they been“technologists”,they would have recognized that the power of steam had already been harnessed to industry and to learn and ocean transport. They would have recognized further that it would be the prime source of power on the farm.Itwould have been difficult for them to avoid the conclusion that the horse and mule population would decline rapidly.16.According to the passage,what supplied most of the power on U.S.farms in1870?A.AnimalsB.HumansC.EnginesD.Water17.Which of the following is NOT mentioned by the author as a consequence of new technological developments?A.Older technologies die away.B.The quality of life is Improved.C.Overall productivity increase.D.More raw materials become necessary.18.It can be inferred from the passage that by1870.A.technology began to be more economicalB.the steam engine had been inventedC.the U.S.horse population was about10millionD.a national commission was about10million19.In the second paragraph,the author suggests that“economists”would.A.plan the economy through yearly forecastsB.fail to consider the influence of technological innovationC.value the economic contribution of farm animalsD.consult the national commission on the economy20.What is the author’s attitude toward changes brought on by technological innovations?A.He is excited about them.B.He accept them as natural.C.He is disturbed by them.D.He questions their usefulness.Questions16to20are based on the following passage:This semester I began to have a series of teacher nightmares,something that had not happened to me for years,not since my first year of teaching when I was in a perpetual state of dread.I would be rushing to get to class on time,trying to gather up notes from a maelstrom of papers on my desk,not certain what subject we were covering today,indeed not even certain what course I was teaching.My heart was pounding.I was late.I would not find my notes.A hundred people were waiting for me in the classroom,their pens poised to take down my every syllable,and I had nothing to say.Them Mr.Winthrop’s big blonde face with those dark eyes would loom at the door of my office,and with that mocking grin,he would say,“Professor,the class is waiting for you,”and I would faint dead onto the floor.Or sometimes in my dream I would make it to the podium(讲台),start to lecture on some aspect of criminal law or causation,only to have Mr.Winthrop raise his hand,and without even waiting to be called upon,presumably ask a question. Presumably because I could not make out his words.I could see his mouth moving underneath his baseball cap,and muffled sounds resounded in my ears,but I could not understand him.All eyes in the classroom were on me,and my students began to laugh,but not Mr.Winthrop.He continued to move his mouth,and I felt as if I was watching TV with the sound off except that my head was all a buzz with the laughter and the shuffling of feet as my students exited in disgust.Again, I ended the nightmare by fainting dead away onto the floor,and then I would wake up,my sheets damp from desperation.It was enough to make a man get out of bed and mix a drink at four in the morning even if he had the eight o’clock class.16.From this passage,it is indicated that.A.the first year of teaching is unforgettable and frightening for me foreverB.nightmares have happened to me more often than not since my first year of teachingC.in my first year of teaching,I was always full of fearsD.as a teacher,I feel uneasy all the time17.Which of the following statements is TRUE?A.I was quite clear about the subject I was to deal with before class.B.I would give the lectures on time.C.I prepared the notes carefully before class.However,I forgot to take them with me to the classroom.D.My heart was beating faster and faster before class.18.Mr.Winthrop is.A.a presumable studentB.a baseball loverC.the student who often teases the teacherD.the student who answers the teacher’s question in a humorous way19.In my nightmare,it would happen to me except that.A.I sometimes was very calm to see that my students were in disguiseB.when I gave the lecture,Mr.Minthrop was the only student to ask a questionC.I often fall down to the floor losing my consciousness before I woke upD.I would rather wake up to have a good drink in the early morning than have the nightmare20.The tone of this passage is.A.provokingB.sensationalC.desperateD.profoundPart II Vocabulary and Structure(共40小题,每小题1分,共40分)Directions:In this part there are forty incomplete sentences.Each sentence is followed by four choices.Choose the one that best completes the sentence and then mark your answer on the Answer Sheet.21.the difficulties associated with the project,we’ll go on with it.A.GivenB.In spite ofC.Thank toD.Because of22.It was almost dark in the streets a few very powerful spotlights.A.excludingB.but forC.exceptD.except for23.today,he would get there by Friday.A.Would he leaveB.If he leavesC.Was he leavingD.Were he to leave24.He gave me some very advice on buying a house.A.preciousB.expensiveC.wealthyD.dear25.His goal is not to become a sportsman,a champion in a certain field.A.but rather becameB.but rather to becomeC.but rather becomingD.but rather to becoming26.I just met her on the way home from the bookstore.A.on purposeB.by accidentC.in accidentD.in case27.I don’t know about him,comment on him behind his back.A.let aloneB.let goC.leave aloneD.take leave28.My transistor radio is out of order.It.A.need to be repairedB.need repairingC.needs repairingD.needs to repair29.No one could tell us anything about the stranger.A.consciousB.mysteriousC.seriousD.previous30.Mary all foolish comments and kept on working.A.excludedB.ignoredC.deniedD.discharged31.I agree with him,but not entirely.A.until a certain pointB.to some pointC.to some extentD.until a certain extent32.People in some parts of the world often take their water for.they use as much water as they wish.A.grantedB.sureC.certainD.pleasure33.Color-blind people often find it difficult to between blue and green.A.separatepareC.contrastD.distinguish34.Thousands of people on the city to welcome the visiting guests.A.turned offB.turned upC.turned outD.turned over35.The mountain place is beautiful,but the working conditions,it’s terrible.A.when mentionedB.when it comes toC.when it is saidD.when it dies to36.Are you spending more money on the space program?A.in favor ofB.by favor ofC.in favor toD.out of favor37.In the of my parents,standards of education in the public school are actually falling.A.ideaB.thoughtC.opinionD.principle38.from space,our earth,with water covering70%of its surface,appears as a“blue planet”.A.SeeingB.To be seenC.SeenD.having seen39.This year’s total output value of industry and agriculture will increase5percent over last years.A.byB.toC.ofD.with40.Mary is the top student in the class.She studies harder.A.than any studentB.than all the studentsC.than any other studentD.than some other student41.Many people have applied for the position.A.emptyB.bareC.vacantD.blank42.My new shoes cost me50yuan(RMB).The price was that the last pair I bought a month ago.A.two time more thanB.twice as much asC.as twiceD.as much as twice43.Almost everyone failed on the first day.A.pass his driver’s testB.to have passed his driver’s testC.to pass his driver’s testD.passing his driver’s test44.Over the traditional festival people visit each other and greetings.A.exchangeB.wishC.congratulateD.present45.It was because he was tired out that he fell asleep standing up.A.publiclyB.openlyC.speciallyD.obviously46.The young man was accused of the lady of her money.A.stealingB.robbingC.takingD.grasping47.No matter where our Party needs us,we will her call.A.give answer forB.respond toC.have response toD.answer to48.It is astonishing that a person of your intelligence be cheated so easily.A.couldB.shouldC.mightD.would49.We were completely when we finally reached the destination.A.worn offB.worn downC.worn outD.worn away50.Many things impossible in the past are common today.A.consideredB.to considerC.consideringD.to be considered51.Not until many years later known.A.was the whole truth becomeB.did the whole truth becomeC.the whole truth becameD.the whole truth had became52.We didn’t know his telephone number,otherwise we him.A.would telephoneB.would have telephonedC.had telephonedD.must have telephoned53.There is no point with him,since he has already made up his mind.A.argueB.to argueC.in arguingD.of arguing54.I appreciate that letter for me.A.you to writeB.your writingC.you writeD.that you writing55.I’d like to a special seat for the connect of May5.A.serveB.reserveC.preserveD.conserve56.that son is well again,you no longer have anything to worry about.A.SinceB.NowC.WhenD.After57.Generally speaking,all kinds of materials will expand when heated but will when cooled.A.contrastB.contractC.surviveD.return58.You won’t know if it fits you until you it on.A.will tryB.are tryingC.are to tryD.have tried59.After all efforts in vain,he had to accept the result.A.regularlyB.shallowlyC.physicallyD.painfully60.The rest of his life is to the cause of international exchanges of visiting scholars.A.addedB.putC.savedmittedPart III Cloze(共20小题,每小题1分,共20分)Directions:There are twenty blanks in the following passage.For each blank there are four choices. Choose the one that best fits into the passage and then marks your answer on the Answer Sheet.In1982,Mark Thatcher,the son of Mrs.Thatcher was reported61in the Sahara Desert while competing in the Grand Prix motor race from Paris to Dakar.This sad news,so62,shook the usually calm and unperturbed seasoned politician63her balance.Though she did her best to pretend as if64 had happened and made her public appearances as usual,people could not65to notice that she was no longer the old66prime minister who always had everything67control.68she had become a very sad mother who was unable to recover from her shock.One day,when she was to speak at a luncheon party,a reporter caught her69her guard by70up the subject of her missing son again.She was totally mentally71for the question and lost her self control.Tears were rolling down her eyes as she sobbingly told the reporter that there72 still no news of Mark and that she was very worried about him.She said that all the countries 73had promised to do their best to help her find her son.74that she broke down completely and sobbed silently for quite a while.Gradually she75down and started to speak as76.it was a very moving scene which77a new side of Mrs.Thatcher’s character the public do not usually see,78people began to talk about the Iron Woman’s maternal love,a sentiment that is79to all human kind.Later Mark returned80and sound to his mother’s side,good-humored and all smiles as usual, as if nothing unusual had ever happened.The Iron Woman,however,broke down again as was sobbing for the second time.61.A.missing B.missed C.wanting D.wanted62.A.expected B.expecting C.unexpected D.unexpecting63.A.with B.on C.out D.off64.A.something B.anything C.nothing D.everything65.A.miss B.fail C.pretend D.expect66.A.reassured B.self-assured C.assuring D.self-assuring67.A.for B.beneath C.below D.under68.A.Instead B.however C.Therefore D.So69.A.into B.out of C.on D.off70.A.putting B.bringing C.taking D.giving71.A.ready B.prepared C.unprepared D.unexpected72.A.was B.were C.should be D.would be73.A.concerning B.concerned C.worrying D.worried74.A.At B.Before C.After D.With75.A.sat B.broke C.calmed D.became76.A.planned B.planning C.plans D.a plan77.A.explained B.exposed C.excluded D.exclaimed78.A.however B.instead C.so D.but79.A.universal B.unique C.single D.strange80.A.safe B.safely C.sight D.hearingShopping habits in the United States have changed greatly in the last quarter of the20th century. 61in the1900s most Americans towns and cities had a Main Street.Main Street was always in the hear of a town.This street was62on both sides with many63businesses.Here,shoppers talked into stores to look at all sorts of merchandise:clothing,furniture,hardware,groceries,64, some shops offered65.These shops included drugstores,restaurants,shoe repair stores,and barber or hairdressing shops.66in the1950s,a change began to67.Too many automobiles had crowded into Main Street68too few parking place ere69shoppers.Because the streets were crowded, merchants began to look with interest at the open spaces70the city limits.Open space is what their car driving customers needed.And open space is what they got71the first shopping center was built.Shopping centers,or rather malls,72as a collection of small new stores73crowed city centers.74by hundreds of free parking space,customers were drawn away from75areas to outlying malls.And the growing76of shopping centers led77to the building of bigger and better stocked stores,78the late197s,many shopping malls had almost developed into small cities themselves.In addition to providing the79of one stop shopping,malls were transformed into landscaped parks,80benches,fountains,and outdoor entertainment.61A.As early as B.Early C.Early as D.Earlier62.A.built B.designed C.intended D.lined63.A.varied B.various C.sorted D.mixed-up64.A.Apart from B.however C.In addition D.As well65.A.medical care B.food C.cosmetics D.services66.A.Suddenly B.Abruptly C.Contrarily D.But67.A.be taking place B.take place C.be taken place D.have taken place68.A.while B.yet C.though D.and then69.A.available for B.available to ed by D.ready for70.A.over B.from C.out of D.outside71.A.when B.while C.since D.then72.A.started B.founded C.set up anized73.A.out of B.away from C.next to D.near74.A.Attracted B.Surprised C.Delighted D.Enjoyed75.A.inner B.central C.shopping D.downtown76.A.distinction B.fame C.popularity D.liking77.A.on B.in turn C.by turns D.further78.A.by B.During C.In D.Towards79.A.cheapness B.readiness C.convenience D.handiness80.A.because of B.and C.with D.providedPart IV Translation(共35分)Section A(共5小题,每小题4分,共20分)Directions:Translate the following sentences into Chinese.You may refer to the corresponding passages in Part I.81、To cover the marks of the fire,the building was painted white.Before long it became known as the White House.(Passage One)82、The subjects in his experiment were75college students.They represented all levels of ability in English:beginning,intermediate,and native-speaking students.(Passage Two)83、Yet cowboys liked their way of life.They lived in a wild and open country.They lived a life of adventure and freedom.(Passage Three)84、One horse or mule was required to support four human beings a ratio that remained almost constant for many decades.(Passage Four)85、It would have been difficult for them to avoid the conclusion that the horse and mule population would decline rapidly.(Passage Four)84、I would be rushing to get to class on time,trying to gather up notes from a maelstrom of papers on my desk,not certain what subject we were covering today,indeed not even certain what course I was teaching.(Passage Four)85Again,I ended the nightmare by fainting dead away onto the floor,and then I would wake up, my sheets damp from desperation.(Passage Four)Section B(共5小题,每小题3分,共15分)Directions:Translate the following sentences into English.86、现在,重要的是我们每个人都应该知道要做什么,该怎样做。

  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

模拟试卷二
一、选择题(请将正确答案的序号填写在题中的括号中。

每题2分,满分30分)
1、在XY平面上,某圆弧圆心为(0,0),半径为80,如果需要刀具从(80,0)沿该圆弧到达(0,80),程序指令为(B )。

(A)G02 XO.Y80.I80.0 F300 (B)G03 XO.Y80.I-80.0 F300
(C)G02 X8O.Y0.J80.0 F300 (D)G03 X80.Y0.J-80.0 F300
2、在G00程序段中,(C)值将不起作用。

(A)X (B)S (C)F (D)T
3、下列(D )不适应在加工中心上生产。

(A)需要频繁改型的零件(B)多工位和多工序可集中的零件
(C)难测量的零件(D)装夹困难的零件
4、数控机床中把脉冲信号转换成机床移动部件运动的组成部分称为(C )。

(A)控制介质(B)数控装置(C)伺服系统(D)机床本体
5、数控机床的旋转轴之一B轴是绕( B )旋转的轴。

(A)X轴(B)Y轴(C)Z轴(D)W轴
6、使用(B )可使刀具作短时间的无进给光整加工,常用于车槽、镗平面、锪孔等场合,以提高表面光洁度。

(A)G02 (B)G04 (C)G06(D)G00
7、数控机床坐标轴确定的步骤为(C )。

(A)X→Y→Z (B)X→Z→Y (C)Z→X→Y
8、下列(B )的精度最高。

(A)开环伺服系统(B)闭环伺服系统
(C)半闭环伺服系统(D)闭环、半闭环系统
9、(B )命令是有条件停止。

(A)G00 (B)M01 (C)M05 (D)M19
10、在CRT/MDI面板的功能键中,用于刀具偏置数设置的键是(B )。

(A)POS (B)OFSET (C)PRGRM (D)SYSTEM
11、精车轮廓时,为保证零件加工面光洁度的一致性,应使用(C )。

(A)G94 (B)G95 (C)G96 (D)G87
12、单段运行功能有效时,(B )。

(A)执行一段加工结束(B)执行一段保持进给(C)连续加工(D)程序校验
13、程序“D01 M98 P1001”的含义是(D )。

(A)调用P1001子程序(B)调用O1001子程序
(C)调用P1001子程序,且执行子程序时用01号刀具半径补偿值
(D)调用O1001子程序,且执行子程序时用01号刀具半径补偿值
14、执行程序后G98 G81R3 Z-5 F50后,钻孔深度是(A )。

(A)5mm (B)3mm (C)8mm (D)2mm
15、(B )与虚拟制造技术一起,被称为未来制造业的两大支柱技术。

(A)数控技术(B)快速成形法(C)柔性制造系统(D)柔性制造单元
二、判断题(请将判断结果填入括号中。

正确的填“√”,错误的填“×”。

每题2分,满分30分)
()1、机床回零后,显示的机床坐标位置一定为零。

(√)2、加工中心具有刀库和刀具交换装置。

()3、G01 X5与G01 U5等效。

(√)4、数控机床在手动和自动运行中,一旦发现异常情况,应立即使用紧急停止按钮。

(√)5、为了保证工件达到图样所规定的精度和技术要求,夹具上的定位基准应与工件上设计基准、测量基准尽可能重合
(√)6、数据采样插补一般分粗插补、精插补两步,第一步是粗插补,由软件实现,第二步是精插补,由硬件实现。

()7、G81可用于深孔加工。

(√)8、加工中心采用的是笛卡尔坐标系,各轴的方向是用右手来判定的。

(√)9、顺时针圆弧用G02指令编程。

(√)10、子程序一般用相对坐标编程,用G90会使程序在同一位置重复加工。

(√)11、切断实心工件时,工件半径应小于切断刀刀头长度。

()12、加工圆弧时,刀具半径补偿值一定不能大于被加工零件的最小圆弧半径。

()13、在不考虑数控铣床进给丝杠间隙的情况下,为提高加工质量,宜采用外轮廓顺铣,内轮廓逆铣。

()14、目前数控机床只有数控铣、数控磨、数控车、电加工等几种。

(√)15、螺纹循环时,进给保持功能无效。

三、简答题(每题5分,满分10分)
1、什么是数控、数控机床?
2、什么是插补?插补算法分为哪几类?
四、编程题(每题15分,满分30分)
1、车削如下图所示的工件,已知毛坯为φ30×100的45钢,,试编程。

要求:(1)确定加工方案;(2)选择刀具;(3)建立工件坐标系;(4)编程。

2、铣削如下图所示的工件,已知毛坯为100×100×25的45钢,,试编程。

要求:(1)确定加工方案;(2)选择刀具;(3)建立工件坐标系;(4)编程。

答案
一、选择题
1、B
2、C
3、D
4、C
5、B
6、B
7、C
8、B
9、B 10、B
11、C 12、B 13、D 14、A 15、B
二、判断题
1、×
2、√
3、×
4、√
5、√
6、√
7、×
8、√
9、√10、√
11、√12、×13、×14、×15、√
三、简答题
1、答:数控是采用数字化信息对机床的运动及其加工过程进行控制的方法。

数控机床
是指装备了计算机数控系统的机床,简称CNC机床。

2、答:插补就是按规定的函数曲线或直线,对其起点和终点之间,按照一定的方法进行数据点的密化计算和填充,并给出相应的位移量,使其实际轨迹和理论轨迹之间的误差小于一个脉冲当量的过程。

插补算法分为脉冲增量插补和数字增量插补。

相关文档
最新文档