阶段测试.1
江苏省连云港市灌南县第二中学2023-2024学年高三上学期阶段性测试一数学试卷(含解析)

灌南县第二中学数学阶段性测试姓名:班级:学号:一.单选题1.函数f (x )=lg (x 2+3x +2)的定义域是( ) A .(﹣2,﹣1) B .[﹣2,﹣1] C .(﹣∞,﹣2)⋃(﹣1,+∞) D .(﹣∞,﹣2]⋃[﹣1,+∞) 2.设集合A ={x |x >1},集合,则(∁R A )∩B =( ) A .B .C .{x |x ≤1}D .3.若a ,b ,c ∈R ,a >b ,则下列不等式成立的是( ) A .B .a 2<b 2C .a |c |>b |c |D .的值为()则已知函数)4(,0),3(0,12)(.42f x x f x x x f ⎩⎨⎧>-≤+= 3.A 9.B 19.C 33.D的最小值为则已知121,0,0,1.5++>>=+y xx x y y x ( )45.A 0.B 1.C 22.D6.若不等式mx 2+mx ﹣4<2x 2+2x ﹣1对任意实数x 均成立,则实数m 的取值范围是( )A .(﹣2,2)B .(﹣10,2]C .(﹣∞,﹣2)∪[2,+∞)D .(﹣∞,﹣2)7.若集合A={x|2a +1≤x ≤3a -5},B={x|5≤x ≤16},则能使A ⊆B 成立的所有a 组成的集合为 ( )A.{a |2≤a ≤7}B.{a |6≤≤7}C.{a |a ≤7}D.{a |a<6}8.已知方程05)2(2=-+-+m x m x 有两个不相等的实数根,且两个实数根都大于2,则实数m 的取值范围是 ( )A.(-5,-4)∪(4,+∞)B.(-5,+∞)C.(-5,-4)D.(-4,-2)∪(4,+∞) 二.多选题9.“关于x 的不等式ax 2﹣4ax +4>0对∀x ∈R 恒成立”的一个充分不必要条件是( ) A .B .0<a <1C .0≤a <1D .a ≥010.已知实数x ,y 满足﹣1≤x +y ≤3,4≤2x ﹣y ≤9,则4x +y 可能取的值为( ) A .1B .2C .15D .1611.下列命题中正确的是( )A .命题:“∀x ≥0,x 2≥0”的否定是“∃x <0,x 2<0”B .函数f (x )=a x ﹣4+1(a >0且a ≠1)恒过定点(4,2)C .已知函数f (2x +1)的定义域为[﹣1,1],则函数f (x )的定义域为[﹣1,3]D .若函数,则f (x )=x 2﹣x ﹣2(x ≥﹣1) 12.下列命题中的真命题有( ) A .当x >1时,的最小值是3B .的最小值是2C .当0<x <10时,的最大值是5D .若正数x ,y 为实数,若x +2y =3xy ,则2x +y 的最大值为3 三.填空题的最小值为则,且,已知21131,73231.13-+-=+>>y x y x y x .的取值范围为则已知y x y x -<<-<<,31,42.14 .15.若函数f (x )=lg (x 2﹣mx +1)的定义域为R ,则实数m 的取值范围是 .. 则实数,123+234,=+满足,实数16.2取值范围为的恒成立且不等式若正m m m yx y x y x --≥+四、解答题17.已知二次函数y =f (x )的图象过点A (1,1),不等式f (x )>0的解集为(0,2). (1)求f (x )的解析式;(2)若函数y =f (x )图象的顶点在函数g (x )=b (x ﹣m )2+f (m )(m ≠1)图象上,求关于x 的不等式g (x )<(2﹣m )x 的解集.18.如图,在四棱锥P -ABCD 中,底面ABCD 为正方形,PA ⊥平面ABCD ,E 为PD 上的中点.(1)求证:PB 平面AEC ;(2)设PA=AB=1,求平面AEC 与平面AED 夹角的余弦值..已知ABC 的内角;6,求ABC 面积的最大值.(n na ++=21.已知函数()ln f x x ax =-,()()211g x a x =+-,()R a ∈.(1)当2a =时,求函数()f x 在点()()1,1f 处的切线方程;(2)当()()()2h x f x g x =-时,讨论()h x 的单调性.22.已知双曲线C 的渐近线为430x y ±=,右焦点为()5,0F ,右顶点为A . (1)求双曲线C 的标准方程;(2)若斜率为1的直线l 与双曲线C 交于M ,N 两点(与点A 不重合),当0AM AN ⋅=时,求直线l 的方程.参考答案1. C2.A3.D4.B5.A6.B7.C8. C9.AB 10.BC 11.BCD 12.AC13.1 14.(-1,5) 15.(-2,2) 16.[-1,3]17.解:(1)因为f(x)>0的解集为(0,2),所以设f(x)=ax(x﹣2),因为f(1)=﹣a=1,所以a=﹣1,所以f(x)=﹣x(x﹣2);(2)由(1)可知f(x)=﹣x(x﹣2)=﹣(x﹣1)2+1,函数y=f(x)的顶点(1,1)在g(x)的图象上,则g(1)=b(1﹣m)2﹣m(m﹣2)=1,则b(m﹣1)2=(m﹣1)2,m≠1,所以b=1,所以g(x)=(x﹣m)2﹣m(m﹣2)<(2﹣m)x,整理为:x2﹣(m+2)x+2m<0,即(x﹣2)(x﹣m)<0,当m>2时,不等式的解集为(2,m),当m=2时,不等式的解集为∅,当m<2且m≠1时,不等式的解集为(m,2),综上,当m>2时,不等式的解集为(2,m),当m=2时,不等式的解集为∅,当m<2且m≠1时,不等式的解集为(m,2).18.【详解】(1)如图,连接BD交AC于点O,连接EO,则O为BD的中点,E为PD的中点,OE PB∴∥AEC PB⊄平面AEC,又OE⊂平面,∴平面AEC.PB(2)方法一:由于CD AD ⊥,,ADPA A AD PA =⊂平面AE ⊂平面PAD ,所以CD AE ⊥由于,PA AD E =为PD 中点,所以因此CED ∠即为平面AEC 与平面由于1,CD ED =22⎝⎭(110,,,1,1,022AE AC ⎛⎫∴== ⎪⎝⎭平面ADE 的法向量为(1,0,0AB =设平面AEC 的法向量为(,,n x y z =0,0,AE AC ⋅=⋅=即(1,n ∴=-1,13AB n =⨯设平面AEC 与平面ADE3,3AB n =,与平面ADE 夹角的余弦值为)由正弦定理可得3,sin 0,A A ≠π3⎫=⎪,由于所以π3B -=2ac +,,当且仅当a =(n na ++=222a S +=()1n n a -++-()122n n S --+也适合上式,所以)2,故数列()1n ++-()1n ++-122222n n =+++-)12+.定义域为()0,∞+,(f ',77而()(1123,,AM x y AN x =-=-,则(1AM AN x ⋅=-()212122(3)x x m x x m +-+++)214418(7m m ++化简得27542250m m --=,即75)(3)0m +=,而75。
阶段测试一

一、选择题(50×1分)1. 下列关于减压过滤的说法错误的是()(A)胶体沉淀可通过减压过滤进行分离(B)滤纸的大小应略小于漏斗内径(C)滤液由吸滤瓶上口倾出(D)抽滤结束时,应先拔掉橡皮管,再关减压泵2. 某实验报告中有如下记录,其中实验数据合理的是()(A)温度计上显示的室温读数为24.60 C(B)用100mL量筒量取5.26 mL稀H2SO4溶液(C)用广泛pH试纸测得溶液的pH值为3.5(D)用分析天平称取0.5360 g Na2CO33. 下列有关托盘天平的使用,说法错误的是()(A)托盘天平精确度不高,最大载荷为200 g的托盘天平的精密度为± 0.1 g(B)称量时,砝码放在托盘天平右侧(C)托盘天平不能称量热的物品。
(D)称量氯化钠固体,可以用称量纸称量,也可用烧杯称量(D)以上操作均不正确4. 下列实验室事故的处理方法,正确的是()(A)烫伤,立刻用冷水冲洗再处理,若皮肤未破,涂饱和碳酸氢钠于伤处,若皮肤已破,涂1 %的高锰酸钾溶液。
(B)受酸腐蚀,立刻用大量水冲洗再用肥皂水冲洗,最后用水冲洗。
(C)受碱腐蚀,立刻用大量水冲洗再用20%醋酸溶液洗,最后用水洗。
(D)被玻璃碎片割伤后应立即包扎伤口送医院治疗5. 下列说法正确的是()(A)金属钾保存在煤油中,白磷保存在水中(B)做完银镜反应的试管,不能留存,应立刻洗涤,因为久置会变成叠氮化银,易爆炸(C)高锰酸钾不能在硏钵中硏磨,否则引起爆炸(D)酸性溶液不能倒入水槽,碱性废液可倒入水槽,并要用水冲洗6. 下列说法错误的是()(A)酒精灯加热时应使用酒精灯的还原焰加热(B)开动离心机应先慢速,运转平稳后再转到快速(C)氧气钢瓶和氮气钢瓶分别是蓝色和黑色(D)分析纯和化学纯试剂标签的颜色分别是蓝色和红色7. 某学生做完实验以后,采用以下方法分别清洗所用仪器:(1)用HNO3清洗做过银镜反应的试管(2)用酒精清洗做过碘升华的烧杯(3)用浓HCl清洗做过KMnO4分解实验的试管(4)用HCl清洗长期存放过FeCl3溶液的试剂瓶(5)用NaOH溶液清洗盛过苯酚的试管你认为他的操作:()(A)(2)不对(B)(3)(4)不对(C)(4)(5)不对(D)全部正确8. 下列溶液中,在空气里既不易被氧化、也不易分解、且可以用无色玻璃试剂瓶存放的是()(A)硝酸(B)醋酸(C)氢氟酸(D)氢硫酸9. 欲配制和保存FeSO4溶液,应该采取的正确措施是()①把蒸馏水煮沸以赶走水中溶解的O2②溶解时加入少量稀硫酸③溶解时加入少许铁粉④溶解时加入少量盐酸⑤放入棕色瓶中(A)②③(B)②③⑤(C)①③④(D)①②③10. 在强酸性介质中,某些强氧化剂能将Mn2+ 氧化成MnO4-,该方法被用于Mn2+ 鉴定。
2022-2023学年四年级语文下册阶段测试一(1-2单元)(部编版)

四年级语文下册阶段测试一(1-2单元)(部编版)(时间:90分钟满分:100分)题号一二三四五六七八九十总分得分一、书写。
(共8分)看拼音,写词语。
(8分)(1)那间máo cǎo屋后有一只母鸡率领着一群小鸡,在xī shū的篱笆下mì shí,ɡòu chénɡ了一幅美丽的画面。
(2)nà mǐ机器人可以通过血管直达bìng zào,杀死癌xì bāo ,科技yōng有无限潜能,它能帮人类解决各种安全yǐn 患。
二、填空题。
(共12分)1.照样子,写词语。
(3分)五彩斑斓(表示颜色):____________ ____________ ___________前俯后仰(含反义词):____________ ____________ ___________2.我会组词。
(6分)(1)给下面的字加偏旁,再组词。
例:凡—(巩)(巩固)正—( )( ) 刘—( )( ) 建—( )( )(2)给下面的字去偏旁,再组词。
例:挑—(兆)(预兆)绘—( )( ) 洁—( )( ) 预—( )( )3.请写出下列句子中加点词语的近义词。
(3分)(1)科学家们希望能够全面揭示..这一历史进程。
( )(2)这个故事发生在很久很久以前,约莫..算来,总有几万年了。
( )(3)说到恐龙,人们往往想到凶猛的霸王龙或者笨重..、迟钝的马门溪龙。
( )三、选择题。
(共6分)1.下列加点字读音完全正确..的一项是()。
(2分)A.慰藉.(jiè)拂拭.(shì)病灶.(dù)B.锄.头(chú)挣扎.(zhá)开辟.(pì)C.倘.若(tǎng)应和.(hē)执着.(zhuó)D.杂兴.(xīng)率.领(shuài)崭.新(zhǎn)2.下列词语不是..一类的一项是()。
《计算机应用》阶段测试题一

《计算机应用》阶段测试题一一、单项选择题1.我们所说的“计算机”,一般是指__ B__。
A. 电子计算机B. 电子数字式计算机C. 电子模拟式计算机D. 电子混合式计算机2.世界上第一台电子计算机是__A___。
A. ENIACB. IBM 4381C. M 240D. IBM PC XT3.世界上第一台电子计算机产生于_C_。
A. 上世纪20年代B. 上世纪30年代C. 上世纪40年代D. 上世纪50年代4.世界上第一台电子计算机产生于__D_。
A. 英国B. 法国C. 德国D. 美国5.世界上第一台电子计算机的核心部件是用_A__作的。
A. 电子管B. 晶体管C. 集成电路D. 超大规模集成电路6.微型计算机问世于__B___。
A. 20世纪60年代B. 20世纪70年代C. 20世纪80年代D. 20世纪90年代7.微型计算机出现的技术基础C__。
A. 用户的水平B. 计算机网络C. 超大规模集成电路技术D. 计算机系统的可靠性8.最初的微型计算机系统是___a___。
A. 4位机系统B. 8位机系统C. 16位机系统D. 32位机系统9.汇编语言更接近___a__。
A. 机器语言B. 高级语言C. 自然语言D. 查询语言10.64位微型计算机系统是指__D___。
A. 内存容量64MBB. 硬盘容量64MGC. 计算机有64个接口D. 计算机的字长为64位11.存储容量1B是指__B__。
A. 1位B. 8位C. 16位D. 64位12.存储容量1B是指___b___。
A. 1个位B. 1个字节C. 1个字D. 2个字13.存储容量1GB是指__c__。
A. 存储容量为1024个字节B. 存储容量为1024*1024个字节C. 存储容量为1024*1024*1024个字节D. 存储容量为1024*1024*1024*1024个字节14.一台计算机系统由___a__构成。
A. 软件和硬件B. 系统和用户C. 程序和数据D. 主机和外设15.计算机主机由__c_构成。
五年级语文第一阶段测试

1、下列哪个词语的拼音拼写正确?A、独立(dú lì)B、努力(nǔ lì)C、书籍(shū jí)D、夸奖(kuā jiǎng)(答案:C)解析:A项“独立”应拼为“dúlì”但选项本身拼音无误,此处为干扰项;B项“努力”拼音正确,但非本题答案;C项“书籍”拼音正确,且为本题正确答案,因为“籍”应读“jí”而非“jì”;D项“夸奖”应拼为“kuā jiǎng”,但“奖”字拼音标注错误,应为三声而非一声。
2、下列哪个字不是形声字?A、河B、清C、休D、洋(答案:C)解析:形声字是由形旁和声旁组成的字,形旁通常表示字的意义类别,声旁则表示字的读音。
A项“河”、B项“清”、D项“洋”均为形声字,而C项“休”为会意字,由“人”和“木”组成,表示人靠在树下休息,不是形声字。
3、下列哪组词语中,没有错别字?A、厉害历害B、既然即然C、鼓励鼓厉D、教训教驯(答案:A)解析:A项中“厉害”拼写正确,无误;B项中应为“既然”,表示已经如此的意思,而“即然”中的“即”是错别字;C项中应为“鼓励”,表示激励、鼓舞的意思,而“鼓厉”中的“厉”是错别字;D项中应为“教训”,表示从错误或挫折中得到的经验或训诫,而“教驯”中的“驯”是错别字,与“教训”意义不符。
4、下列哪个成语的使用是正确的?A、他做事情总是专心致志,所以成绩很好。
(正确)B、这个地方的风景真是美轮美奂。
C、他说话总是滔滔不绝,让人听得头疼。
D、他对待工作总是精益求精,但对待生活却粗心大意。
(答案:A)解析:A项“专心致志”使用正确,表示一心一意,聚精会神;B项“美轮美奂”多用于形容房屋高大美观,不能用于形容风景;C项“滔滔不绝”形容说话连续不断,但此处语境应为说话啰嗦、冗长,使用不当;D项“精益求精”表示不断追求更高水平,但此处与“粗心大意”并列使用,语境不符。
5、下列哪句话中的标点符号使用是正确的?A、老师说:“明天我们要去春游”。
2022年同步学历案课时练七年级语文下册人教版阶段测试一

2022年同步学历案课时练七年级语文下册人教版阶段测试一1、1《我的母亲》中“母亲笑了。
及至听说我还须回校,她愣住了。
半天,她才叹出一口气来。
”这句话运用了动作、神态描写,生动形象地写出了母亲对儿子回家过年的喜悦,得知儿子即刻就要返校的惊讶及无奈。
[判断题] *对(正确答案)错2、15.下列词语中加点的字注音完全正确的一项是()[单选题] *A.提防(tí)称职(chèn)狡黠(xiá)振聋发聩(kuì)B.氛围(fēn)憎恶(zēng)阴翳(yì)矫揉造作(jiāo)C.字帖(tiè)倔强(jué)叱咄(duō)吹毛求疵(cī)(正确答案)D.诡谲(jué)两栖(xī)愧怍(zuò)悲天悯人(mǐn)3、1《荷塘月色》《画里阴晴》《林教头风雪山神庙》的作者分别是朱自清、吴冠中、施耐庵。
[判断题] *对错(正确答案)4、“睿智”的“睿”的正确读音是“ruì”。
[判断题] *错5、叶子出水很高,像亭亭的舞女的裙。
修辞格是()[单选题] *夸张夸张拟人比喻(正确答案)6、泰山的别名是()[单选题] *岱(正确答案)泰岳宗7、下列选项中加着重号字注音正确的一项是()[单选题] *A、樯橹qiáng酹lèi 吟啸xiào羽扇纶巾guān(正确答案)B、笺注qiān 赤鼻矶jī蓑衣suō料峭qiāoC、针砭biǎn 粗糙cāo 差别chā创伤chuāngD、战栗zhàn炽烈chì对称chèng 万箭攒心cuán8、1“爱而不见”的下一句是“俟我于城隅。
”[判断题] *错9、对《红楼梦》中的情节概述不准确的一项是( ) [单选题] *A.史湘云醉眠芍药裀B.王熙凤大闹宁国府C.薛宝钗重建桃花社(正确答案)D.贾探春兴利除宿弊10、下列选项中加着重号字注音正确的一项是()[单选题] *A、槁暴pù輮使之然róu舟楫jì舆马yúB、蛟龙jiāo跬步kuǐ骐骥jì爪牙zhǎo(正确答案)C、镂金lóu 弩马nǔ洞穴xué生非异也xìngD、跂而望qì锲而不舍qì二螯áo 参省乎己xǐng11、1“千呼万唤始出来”的下一句是“唯见江心秋月白”。
天津卓越考研分享-考研英语阶段测试卷一(含答案)

考研英语阶段测试卷一一、写出下列单词的所有中文含义。
(每个3分,共60分。
)1.aggressive2.wholesale3.conform4.deprive5.multiply6.booming7.corruption8.reap9.surge10.tempting 11.successive12.reckon13.submit14.facility15.broadcast16.proposal17.gear18.swiftlypse20.ascertain二、翻译。
(第一、二题分别15分,第三题10分,共40分。
)1.On the other hand, he did not accept as well founded the charge made by some of his critics that, while he wasa good observer, he had no power of reasoning.2.We are thus led to distinguish, within the broad educational process which we have been so far considering, a more formal kind of education-that of direct tuition or schooling.3.In fact,it is difficult to see how journalists who do not have a clear grasp of the basic features of the Canadian Constitution can do a competent job on political stories.考研英语阶段测试卷一(答案)8月11日英语晨测答案三、写出下列单词的所有中文含义。
《小学语文教学研究》阶段一测试及答案

《小学语文教学研究》阶段一测试及答案一、单项选择题1、明确指出语文课程的基本理念是:全面提高学生的语文素养,正确把握语文教育的特点,积极提倡自主、合作、探究的学习方式,以及努力建设开放而有活力的语文课程的是()。
A、《语文课程标准》B、《小学课程标准》C、《初中课程标准》D、《高中课程标准》正确答案:A解析:《语文课程标准》明确指出语文课程的基本理念是:全面提高学生的语文素养,正确把握语文教育的特点,积极提倡自主、合作、探究的学习方式,以及努力建设开放而有活力的语文课程。
参见教材P3。
2、针对当前机械教学、琐碎练习、高耗低效的语文教学现状,一语中的地指出:缺乏“规律”意识正是我国语文教育质量长期效率低下的根本原因的是()。
A、戴汝潜B、陶行知C、陆定一D、康民正确答案:A解析:戴汝潜先生针对当前机械教学、琐碎练习、高耗低效的语文教学现状,一语中的地指出:缺乏“规律”意识正是我国语文教育质量长期效率低下的根本原因。
参见教材P4。
3、我国古代教育文献()里说:“君子既知教之所由兴,又知教之所由废,然后可以为人师也。
”A、《学记》B、《文心雕龙》C、《论语》D、《大学》正确答案:A解析:我国古代教育文献《学记》里说:“君子既知教之所由兴,又知教之所由废,然后可以为人师也。
”参见教材P4。
4、教育部于()颁发了《基础教育课程改革纲要(试行)》和各科课程标准(实验稿),标志着新一轮课程改革已全面启动。
A、2001年B、2000年C、1980年D、1979年正确答案:A解析:2001年,教育部颁发了《基础教育课程改革纲要(试行)》和各科课程标准(实验稿),标志着新一轮课程改革已全面启动。
参见教材P2。
5、在被研究的对象处于自然的情况下,研究者有意识、有目的地对他进行仔细查看和分析的一种研究方法,指的是()。
A、观察法B、实验法C、内容分析法正确答案:A解析:观察法指的是在被研究的对象处于自然的情况下,研究者有意识、有目的地对他进行仔细查看和分析的一种研究方法。
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阶段测试(一)Ⅰ.阅读理解㈠阅读理解AThe first day of school our professor challenged us to get to know someone we didn’t know.I turned around to find a wrinkled(有皱纹的) old lady.She said,“Hi,handsome.My name is Rose.I’m 87 years old.Can I give you a hug?”I laughed and enthusiastically responded,“Of course you may!”,and she gave me a giant squeeze.“Why are you in college at such an old age?”I asked.I was curious what may have motivated her to be talking on this challenge at her age.“I always dreamed of having a college education and now I’m getting one!”she told me.After class we shared a chocolate milk shake.We became instant friends.Every day for the next three months,we would leave class together and talk non-stop.Over the course of the year,Rose became a campus star and she easily made friends wherever she went.At the end of the term we invited Rose to speak at our football banquet(宴会).I’ll never forget what she taught us.She cleared her throat and began,“We do not stop playing because we are old;we grow old because we stop playing.If you are 19 years old and lie in bed for one full year and don’t do one productive thing,you will turn 20 years old.If I’m 87 years old and stay in bed for a year and n ever do anything,I will turn 88.Anybody can grow older.That doesn’t take ant talent or ability.The idea is to grow up by always finding the opportunity in change and have no regrets.”At the year’s end Rose finished the college degree.One week after gradua tion,Rose died peacefully in her sleep.Over 2000 college students attended her funeral in honor of the wonderful woman who taught by example that it’s never too late to be all you can possibly be.1.Where did the author first got to know Rose?A.In a café.B.In class.C.At a banquet.D.In the library.2.What did Rose want to do through her speech?A.Express gratefulness for her education.B.Share her ambition with others.C.Encourage her college mates.D.Show her speaking skills.3.What does the author think of Rose?A.Energetic and caring.B.Positive and admirableC.Curious an friendlyD.Innocent and enthusiastic.4.Which can be the best title for the text?A.A Forever FriendB.Memory of College LifeC.We All Grow OlderD.Never Too Late to Pursue DreamsBEver feel like you’ve been hit on the head after a bad night’s sleep?According to scientists,the thought is n’t as far-fetched as it seems.A study found going without sleep for just one night causes changes in the brain similar to those that occur after a blow to the head.Professor Christian Benedict,of Uppsala University,Sweden,explained that the chemicals NSE and S-100B are biomarkers for brain damage.He said:“What we found was that their levels in the blood rose in the group that went without sleep for a night.This was not to the extent that would happen after a head injury,for instance,but it was still significant.During sleep,the brain cleans itself of toxic substances and NSE and S-100B increase in response to there substances.”He said the findings back up previous research showing how the brain uses sleep to clean itself.Professor Benedict said his study could also support previous studies which linked lack of sleep with increased risk of Alzheimer’s disease,Parkinson’s disease and Multiple sclerosis.The rise of the chemicals in the blood after sleep loss may suggest not getting enough sleep is conducive to a loss of brain tissue, explained.Professor Benedict,whose study is published in the journal Sleep,added:“In conclusion,the findings of our trial indicate a good night’s sleep may be critical for maintaining brain health.”A third of the UK population suffer from sleep-related problems,while the average person now sleeps for only seven hours a night,compared with almost nine a few decades ago.Many scientists believe irregular sleeping patterns lead to illnesses ranging from aches and pains to heart dis ease,while less than eight hours’ sleep a night can lower the IQ the next day.And more and more scientists have offered many different ways to get a good night’s sleep.1.The underlined phrase in Paragraph 3 probably means“”.A.supportB.objectC.reflectD.drag2.According to the passage,what can we infer from the study?A.A good night’s sleep can’t decrease the risks of many diseases.B.A good night’s sleep makes no difference to our health.C.The longer we sleep,the better our body becomes.D.A good night’s sleep benefits our brain health.3.What may the passage talk about next?A.The reasons why the research began.B.The disadvantages of a poor night’s sleep.C.The diseases linked to a poor night’s sleep.D.The advice on how to get a good night’s sleep.4.What is the best title of the passage?A.The Background of a Research on Sleep and Our BrainsB.The Findings of a Research on Sleep and Our BrainsC.The Effect of a Good Sleep on Our Brains.D.The Importance of a Good Sleep.CGretchen Alexander is sightless.But she refuses to allow her blindness to limit her life activities.She enjoys archery,golf,softball,sailing and water skiing,as well as a number of other activities that those of us who are sighted have yet to learn.She also speaks to groups about living life fully.When speaking to a group of high school students,she was once asked if there was anything she wouldn’t try.“I’ve decided never to try skydiving,”she answered.“It would scare me to de ath.”Why do some people rose above their problems and live life fully,while others become defeated?Merle Shain explains it this way:“There are only two ways to approach life:as a victim or as a gallant fighter.And you must decide whether you want to act o r to react.”When discourages,a victim reacts,perhaps in pain or self-pity.But a fighter will act.A fighter will make a decision to change that set of circumstances that leave him or her discouraged.Or a fighter will decide to accept those circumstances with grace and move ahead anyway.A fighter will decide to act with courage.A fighter will take responsibility for his or her happiness.No matter how afraid,a fighter will refuse to give in to the most defeating of all humanemotions—helplessness.A victim rea cts.A fighter acts.To be a victim or a fighter it’s your decision.It’s a decision about whether you will lie you life fully with courage,or you will be forever defeated by harsh circumstances.Make it well,for it may be one of the most important decisions you ever make.Will you be a victim or a gallant fighter?1.What can we learn about Gretchen Alexander from this passage?A.She is more athletic than whose of us who are sighted.B.She is discouraged when her dog is scared.C.There is no limitation to her life activities.D.She is a brave fighter.2.The underlined word “it” in Paragraph 3 is closest in meaning to “”.A.lifeB.choiceC.courageD.circumstance3.The third paragraph mainly talks about .A.the difference between a victim and a fighterB.The reactions to helplessnessC.Decision-makingD.A fighter’s responsibility4.The best title for this passage would be .A.Gretchen Alexander’s LifeB.Merle Shain’s Attitude to LifeC.Victims and fightersD.The Way of LifeDWe’re often told to “eat a rainbow”and we aim for the guideline that says the more color a food has,the better it is.However,color is just one indicator of nutrient.Produce that wears white could be just as valuable.In fact,some white vegetables contribute substantial quantities of nutrients that we seem to be missing most often,also known as shortfall nutrients,like potassium(钾),magnesium(镁) and fiber.MushroomsMushrooms are low in calories,fat-free,cholesterol-free,gluten-free,with barely any sodium(钠),and yet they carry a wealth of selenium,potassium,riboflavin(核黄素),niacin and vitamin D.Mushrooms are also hearty and filling so they can help you control your weight.They can help simple dishes come alive.GarlicAside from tasting great,garlic has been regarded as being able to help hair grow,cause acne to disappear and keep a cold and the flu away.Its antioxidant properties can help strength your immune system,and to get the most out of garlic’s act ive chemical—allicin,cut a clove of garlic up and expose it to the air for a while before you cook with it.OnionsChef Julia Child said,“I cannot imagine a world without onions,”and for good reason.The anti-inflammatory(消炎的)chemical in onions,called quercetin,can help ease discomfort from arthritis,and quercetin’s beneficial properties have been associated with a lower risk of cancer,heart disease,diabetes and a stronger immune system.PotatoesNearly all Americans fail to meet dietary recommendations for potassium(97 percent) or dietary fiber (95 percent).On an equal weight basis,the white potato provides as much fiber as andmore potassium than other commonly consumed vegetables or fruit.Potatoes also provide vitamin C,vitamin B6 and magnesium,in addition to small amounts of high-quality protein.1.According to the passage,which of following doesn’t belong to shortfall nutrients?A.CalciumB.FiberC.MagnesiumD.Potassium2.If you are losing weight,it is effective to have .A.mushroomsB.garlicC.onionsD.potatoes3.Before cooking,cut garlic up and expose it to the air in order to .A.get riboflavinB.taste deliciousC.get allicinD.decrease the risk of cancers4.What similarity do garlic and onions have according to the passage?A.They can help hair grow.B.They can keep colds and flu away.C.They can help ease discomfort.D.They can strengthen your immune system.㈡阅读七选五Ways to Improve Your MemoryHuman mind is remarkable thing.In many ways we could consider it the original super computer ,capable of astonishing feats when it’s wo rking optimally.Some of the secrets of getting the most out of our minds are quite simple to carry out once we are aware of them. 1 Check out these ways to improve your memory,and you may never find yourself wondering where you left your car keys again!Cut Stress. 2 This means when anyone with these things is running wild in your life,your memory will suffer,sometimes greatly.Some methods that have worked again and again:meditation,yoga or even spending relaxing time with a pet. 3Get Blood Flowing.Exercise isn’t only great for your body,but it’s equally good for your long and short term memory. 4 Then what you thought was a bad memory will likely be replaced by a more youthful mind that is less forgetful.So running,swimming,riding a bike or clocking in on the rowing machine are all good choices here.5 This is a trick used by all of the world’s top memory contest winners,so you know that if we accept it we should take it very seriously!Instead of thinking of words and numbers when we try to remember something,make an effort to think in visual terms.By associating what we would like to remember with images,we are much,much more likely to remember what we wish to without struggling.It’s a law of how our minds work that can be easily used to impro ve our memories in seconds.Get in the habit of drawing pictures in your mind and a memory contest may be in your near future too!A.Image Association.B.Eat more fish and legumes.C.Give these a try and see what you think.D.Have you even wished you memory?E.Get moving,and keep your blood flowing in a healthy manner consistently.F.In fact,not sleeping well one night can take a good night’s sleep to recover from.G.Depression,stress and anxiety all tax the same area of your brain that is responsible for memory. Ⅱ.完形填空Beautiful Memories of My DadI think of you today,Dad.I almost 1 out loud when I see you in myself.It makes me2 that you’re a part of me and will always be within my3 .It brought a warm smile,as I remembered how you taught me about characters,4 ,justice,and self-respect.You taught me to enjoy life and that fun and recreation were5 to refresh the creative forces in making more effort.You taught me to6 my work,as almost one third of my life is spent in my effort.You taught me to share my 7 ,for only by giving do I truly receive.You taught me love, 8 you shared yourself with all seven of us children.Throughout you Dad,I learned what istruly 9 in life.I now know that you continue to live through me and I hope I have passed that.I know that your life was not 11 ,losing your father when you were only two years old.I know that having to 12 school and help provide for your mother was a necessity.You 13 your responsibilities,as you did in providing for our 14 .Thanks,Dad.So,parents, 15 Dads,remember that you do make a difference by 16 you teach your children, 17 that they will make a difference in this world.Children,now it is time to 18 your love and thanks to your Dad 19 what he does for you.A big hug ,a 20 “thank you”,and living a life of purpose will give him more joy.1.( )A.shout ugh C.cry D.scream2.( )A.recognize B.remember C.realize D.agree3.( )A.heart B.head C.body D.world4.( )A.honesty B.health C.friendship D.work5.( )A.found B.discussed C.needed D.collected6.( )A.ignore B.leave C.finish D.enjoy7.( )A.sorrow B.riches C.stories D.knowledge8.( )A.as B.unless C.when D.even if9.( )A.necessary B.hard C.interesting D.important10.( )A.colleagues B.friends C.kids D.parents11.( )A.wonderful B.easy C.difficult D.safe12.( )A.get rid of B.catch up with C.drop out of D.look forward to13.( )A.avoided B.lost C.abandoned D.took14.( )A.family B.relatives C.society D.mother15.( )ually B.especially pletely D.probably16.( )A.which B.when C.what D.where17.( )A.or B.so C.but D.and18.( )A.return B.tell C.express D.teach19.( )A.for B.about C.of D.in20.( )A.careful B.warm C.surprising fortableⅢ.语法填空A:I’ve read a book about personal ideals, 1 concludes that living without an aim is like sailing without a compass.B:I agree.The most important in life is to have a great aim,and the 2 (determine)to attend it.Ideals are like the stars We never reach them, 3 like mariners,we can chart our course by them.A:At the very beginning,I wanted to be a writer However,I was not very 4 (comfortable)and gave up.B:The only limit to our realization of tomorrow 5 our doubts of today.A:To be honest,I really love writing .Luckily,I 6 (publish)some stories in newspapers up to now.B:Congratulations.You should devote yourself 7 realizing your dream.A:Right.I’ve also learned it from the book that it’s the ideals 8 have lighted my way,and given me new courage to face life cheerfully.B:As the old 9 goes,where there’s a will,there’s a way.So,don’t part with your illusions. When they are gone,you may still exist,but you have cased to live.A:Always 10 (bear)this in mind,I may achieve my dream earlier.Right?B:Correct.Good luck!1. 2. 3. 4. 5.6. 7. 8. 9. 10.Ⅳ.单词拼写1.Weather (permit),we’ll go camping on the West hill this weekend.2.With Jack (direct)me,I had no difficulty in finding the principal’s house.3.On the open land,he found a place in a field where he could sleep without being .(disturb)4.Blood must (循环)properly in the head to supply the fresh oxygen the brain cells need.5.If money comes and goes without good planning,you are likely to live on a tight .(债务)6.The man is very rich but he is always in (衣衫褴褛的) on purpose to pretend to be a beggar.7.Much of the social history of the western world over the past three d has involved replacing what worked with what sounded good.These thirty years definitely has a special role in history.8.It was all my f that my son had made such a silly but serious mistake.9.In order to keep healthy,you’d better have a b diet.10.The driver i the danger sign and then could not stop the bus on the hill.Ⅴ.完成句子1.You understand not only what the rule says but also what it means as if you yourself .(make)你不仅理解该规定的内容,而且也理解它的含义,就好像是你亲自制定似的。