uint1基础
c语言中uint类型

C语言中的uint类型在C语言中,uint是一种无符号整数类型,它表示非负整数。
uint的全称是unsigned int,它的取值范围是0到4294967295,占用4个字节(32位)。
与之对应的有带符号整数类型int,它的取值范围是-2147483648到2147483647。
uint类型的定义在C语言中,可以使用关键字unsigned来定义uint类型的变量。
例如:unsigned int num;这样就定义了一个名为num的uint类型变量。
uint类型的特点1.无符号:uint类型是无符号的,即它只能表示非负整数。
由于没有符号位,所以uint类型的取值范围比int类型更大。
2.高位优先:在存储uint类型的变量时,高位字节存储在高地址,低位字节存储在低地址。
这种存储方式称为高位优先(Big Endian)。
3.位运算:由于uint类型是以二进制形式存储的,所以可以使用位运算来对uint类型的变量进行操作。
常见的位运算包括与、或、异或、取反等。
uint类型的使用赋值和输出可以使用赋值运算符将一个非负整数赋值给uint类型的变量,例如:unsigned int num = 10;也可以使用printf函数输出uint类型的变量,需要使用%u作为格式控制符,例如:printf("%u\n", num);运算符uint类型支持常见的算术运算符和比较运算符,例如加法、减法、乘法、除法、取模等。
需要注意的是,对于uint类型的变量进行减法运算时,要确保结果仍然是非负的。
unsigned int a = 10;unsigned int b = 5;unsigned int sum = a + b;unsigned int difference = a - b;unsigned int product = a * b;unsigned int quotient = a / b;unsigned int remainder = a % b;位运算uint类型支持常见的位运算,包括与、或、异或、取反等。
c语言 uint 变量的默认初始值

c语言uint 变量的默认初始值好的,我来试试用不同地区的方言结合来写一篇文章,主题是关于C语言中`uint`变量的默认初始值。
---**话说C语言中的uint变量默认值**哎哟,这C语言可真是让人头疼啊,特别是那uint变量,让人摸不清头脑。
咱们四川话来说,这uint就像个刚出锅的麻辣火锅,看着辣,吃着更辣,得慢慢品味。
你看这uint,跟咱们贵州的酸辣粉儿似的,都是那么有味道,就是得小心别烫着。
在C语言里头,这uint变量啊,它就像个新出锅的酸辣粉儿,没人动它,它就静静地躺在那儿,等着你来品尝。
说到这默认值啊,就像咱们陕西人吃面,没加调料前,那就是一碗清汤寡水。
同样,C语言里的uint变量,在声明之后、赋值之前,它就是一碗没加料的清汤面,啥味道也没有,啥值也没有。
你得给它加点“调料”,也就是给它赋个值,它才有味道,才有意义。
咱再说说北京话儿,这uint变量啊,就跟咱老北京的炸酱面一样,得有料才好吃。
没放酱之前,那就是一碗白面条儿,啥也不是。
在C语言里,uint变量也是这样,没赋值前它就是空的,啥也不是。
得给它“放点酱”,也就是给它赋个初始值,它才有味道,才能用。
所以说啊,这C语言中的uint变量,就像咱们各地的美食一样,得有“调料”才有味道。
没赋值前,它就是一碗清汤面或者白面条儿,啥也不是。
咱们得给它加点“调料”,也就是给它赋个初始值,它才能变得有味道,才能为我们所用。
这就是C语言中uint变量的默认初始值,简单说,就是啥也没有,得靠咱们自己去“调味”。
---这篇文章尽量结合了四川方言的麻辣、贵州方言的酸辣、陕西方言的朴实和北京方言的直爽,同时保持了内容的详实、合理和科学。
希望符合您的要求。
c语言中uint类型

c语言中uint类型摘要:1.了解C语言中的uint类型2.uint类型的应用场景3.uint类型与其他整数类型的区别4.总结正文:在C语言中,uint(无符号整数)类型是一种非常重要的数据类型。
它主要用于存储非负整数,尤其在需要处理大量整数运算、存储较大整数或对整数取模等场景中具有广泛的应用。
1.了解C语言中的uint类型uint类型在C语言中定义为无符号整数,它的取值范围通常是32位或64位。
根据不同的编译器和平台,uint类型的取值范围可能有所不同。
在大多数标准编译器中,uint32_t表示32位无符号整数,uint64_t表示64位无符号整数。
uint类型的数值范围比有符号整数(如int)更大,且不会受到负数的影响。
2.uint类型的应用场景uint类型在以下场景中具有广泛的应用:(1)处理大量整数运算:在需要对整数进行加、减、乘、除等运算时,uint类型可以避免溢出的问题。
(2)存储较大整数:当需要存储的整数绝对值较大时,uint类型可以提供更大的取值范围。
(3)对整数取模:在进行取模运算(%)时,uint类型可以确保结果仍然为无符号整数。
3.uint类型与其他整数类型的区别与有符号整数(int)相比,uint类型有以下区别:(1)取值范围:uint类型的取值范围比int类型更大。
(2)正负性:uint类型只包含非负整数,而int类型包含所有整数(包括正负)。
(3)溢出问题:在进行运算时,int类型可能会出现溢出现象,而uint类型不会。
4.总结C语言中的uint类型是一种重要的数据类型,它主要用于存储和处理非负整数。
uint类型具有较大的取值范围,适用于处理大量整数运算、存储较大整数以及对整数取模等场景。
了解uint类型的特点和应用场景,可以提高编程效率,避免潜在的问题。
uint的取值范围

uint的取值范围在计算机科学中,uint是一种无符号整数类型。
它是由C语言引入的,被广泛地应用于各种编程语言中。
uint的取值范围是计算机科学中一个非常重要的概念,因为它直接影响着程序的正确性和性能。
uint的定义在C语言中,uint是一种无符号整数类型,它的定义如下:typedef unsigned int uint;在其他编程语言中,uint的定义可能有所不同,但它们都具有相似的特点:无符号、整数类型。
uint的取值范围uint的取值范围是由它的数据类型决定的。
在C语言中,uint 的数据类型是unsigned int,它的取值范围是0到4294967295,即2的32次方减1。
在其他编程语言中,uint的数据类型和取值范围可能有所不同,但它们都具有相似的特点:无符号、整数类型。
uint的优点与有符号整数类型相比,无符号整数类型具有以下优点:1. 无符号整数类型可以表示比有符号整数类型更大的正整数。
2. 无符号整数类型没有负数,不需要考虑符号位,因此可以提高程序的执行效率。
3. 无符号整数类型可以避免一些不必要的错误,例如溢出错误。
uint的缺点与有符号整数类型相比,无符号整数类型也具有以下缺点:1. 无符号整数类型不能表示负数,因此在一些场合下会造成不便。
2. 无符号整数类型的运算规则与有符号整数类型不同,需要特别注意。
3. 无符号整数类型可能会造成一些安全问题,例如缓冲区溢出。
uint的应用uint的应用非常广泛,它可以用于各种场合,例如:1. 数组下标:由于数组下标必须是非负整数,因此可以使用uint 类型。
2. 循环计数器:由于循环计数器必须是非负整数,因此可以使用uint类型。
3. 位运算:由于位运算只能作用于无符号整数类型,因此可以使用uint类型。
4. 网络编程:由于网络传输的数据类型通常是无符号整数类型,因此可以使用uint类型。
uint的注意事项在使用uint类型时,需要注意以下事项:1. 避免溢出:由于uint类型的取值范围有限,因此在进行加减乘除等运算时需要特别注意,避免产生溢出。
c语言中uint类型

c语言中uint类型摘要:1.介绍C 语言中的数据类型2.讲解uint 类型的概念和特点3.分析uint 类型在C 语言编程中的应用场景4.总结uint 类型的重要性及使用建议正文:C 语言是一种广泛应用于系统开发和嵌入式领域的编程语言,它提供了丰富的数据类型来满足各种编程需求。
在C 语言中,数据类型主要分为整型、浮点型和字符型等。
其中,整型数据类型又包括int、short、long 和无符号整型(uint)等。
本文将重点介绍C 语言中的uint 类型。
uint 类型,全称为无符号整型,表示一种不带符号的整数。
它的取值范围通常为0 到某个最大值,这个最大值取决于编译器和硬件平台。
与带符号的整型(如int、long 等)相比,uint 类型的值永远是非负的,这使得它在处理数值范围较大的问题时具有更高的灵活性和效率。
在C 语言编程中,uint 类型在很多场景下都有广泛的应用。
以下列举了几个常见的应用场景:1.处理数值范围较大的数据:由于uint 类型可以表示较大的数值,因此,在需要处理较大数值范围的问题时,使用uint 类型可以避免出现数值溢出的情况。
2.处理位运算:在计算机科学中,位运算是一种非常常见的操作。
而无符号整型(uint)在进行位运算时,可以避免符号位的干扰,使得操作更加简单和直观。
3.数据结构与算法:在实现一些数据结构(如链表、树等)和算法(如排序、查找等)时,使用uint 类型可以简化代码逻辑,提高程序的执行效率。
总之,无符号整型(uint)在C 语言编程中具有重要的地位和作用。
在实际编程中,我们需要根据具体问题和需求,灵活选择合适的数据类型。
在某些情况下,使用uint 类型可以简化问题,提高代码的可读性和执行效率。
C51常用数据类型

C51常用数据类型引言概述:在C51单片机编程中,数据类型是非常重要的概念,不同的数据类型决定了数据在内存中的存储方式和范围。
了解C51常用数据类型对于编写高效、可靠的程序至关重要。
一、基本数据类型1.1 位类型(bit)- 位类型是C51中最基本的数据类型,只能存储0或者1,用于表示逻辑状态。
- 位类型在C51中占用1位的存储空间,通常用于控制寄存器的位操作。
- 位类型的声明方式为bit,例如:bit flag = 1;1.2 无符号整型(unsigned int)- 无符号整型用于表示非负整数,范围为0到65535。
- 无符号整型在C51中占用2个字节的存储空间,通常用于存储计数器、计时器等变量。
- 无符号整型的声明方式为unsigned int,例如:unsigned int count = 100;1.3 有符号整型(int)- 有符号整型用于表示带符号的整数,范围为-32768到32767。
- 有符号整型在C51中同样占用2个字节的存储空间,通常用于存储温度、速度等带符号的数据。
- 有符号整型的声明方式为int,例如:int temperature = -20;二、扩展数据类型2.1 无符号长整型(unsigned long)- 无符号长整型用于表示较大的非负整数,范围为0到4294967295。
- 无符号长整型在C51中占用4个字节的存储空间,通常用于存储较大的计数值。
- 无符号长整型的声明方式为unsigned long,例如:unsigned long total = 100000;2.2 有符号长整型(long)- 有符号长整型用于表示较大的带符号整数,范围为-2147483648到2147483647。
- 有符号长整型在C51中同样占用4个字节的存储空间,通常用于存储较大的带符号数据。
- 有符号长整型的声明方式为long,例如:long distance = -50000;2.3 浮点型(float)- 浮点型用于表示带小数点的数值,范围和精度较高。
小学三年级英语上册《Uint1 Hello!》教案范文五篇

小学三年级英语上册《Uint 1 Hello!》教案范文五篇英语是一门重要的外语,今天小编为大家带来的是小学三年级英语上册《Uint 1 Hello!》教案范文,希望可以帮助到大家。
小学三年级英语上册《Uint 1 Hello!》教案范文一第一课时一、教学目标:1.能听懂Let’s talk中的对话内容。
2.能运用I’m .... 进行自我介绍。
3.能运用Hello! Hi! 打招呼和Goodbye! Bye!道别。
4.认识课文人物Sarah, Wu Yifan, Miss White。
5.会唱歌曲“Hello”。
二、教学内容:1.词汇:Sarah, Wu Yifan, Miss White。
2.句型:Hello! Hi! I’m.... Goodbye! Bye!三、教学重难点:1.重点:能用Hello! Hi! 打招呼和Goodbye! Bye! 道别。
能用I’m .... 进行自我介绍。
2.难点:I’m, White, hi和bye的发音。
四、教学准备:教材相关人物的面具或头饰、单词卡片、相关录像、录音磁带、录音机、课件等。
五、教学过程:教学环节教师活动学生活动应用资源建议与说明Warm-up /Review 1.播放一首地道纯正的英语歌曲“Edelweiss”。
1.欣赏英语歌曲。
音频:Edelweiss 让学生了解所学语言运用的环境。
让学生逐渐沉浸于英语气氛中,从而对英语产生美好的感受。
2.Greeting with the students.操练Class begins. Stand up.Sit down, please. 2.Greeting with the teacher.学生听指令做相应的动作。
让学生初步了解课堂指令。
使学生从一开始学习英语就熟悉课堂用语及指令。
3.游戏“反动作”。
教师说指令Stand up.学生即做Sit down.的动作。
当教师说Sit down.的指令时,学生即做Stand up.的动作。
(完整版)人教版高中英语必修一英语单词表

必修一Uint11. n. 调查;测验2. 短语:合计3. adj. 心烦意乱的;不安的;不适的Vt. 使不安;使心烦4. vt. 不理睬;忽视5. vt.&vi (使)平静;(使)镇定Adj. 平静的;镇静的;沉着的6. 短语:(使)平静下来;(使)镇定下来7. 短语:不得不;必须8. vt. (使)担忧;涉及;关系到n. 担心;关注;(利害)关系9. 短语:关心;挂念10. 短语:遛狗11. adj. 松的;松开的12. n. 兽医13. 短语:经历;经受14. n. 阿姆斯特丹(荷兰首都)15. n. 荷兰(西欧国家)16. adj. 犹太人的;犹太族的17. adj. 德国的;德国人的;德语的n. 德国人;德语18. n. 纳粹党人adj. 纳粹党的19. 短语:记下;放下;登记20. n. 连续;系列21. 短语:一连串的;一系列;一套22. n. 基蒂(女名)23. adv. 在户外;在野外24. vt. 迷住;迷惑25. 短语:故意26. 短语:为了……27. n. 黄昏;傍晚28. 短语:在黄昏时刻29. vi. 打雷;雷鸣n.雷;雷声30. adj. 整个的;完全的;全部的31. adv. 完全地;全然地;整个地32. n. 能力;力量;权力33. 短语:面对面地34. n. 窗帘;门帘;幕布35. adj. 积满灰尘的36. 短语:不再37. n. 伙伴;合作者;合伙人38. vi. 安家;安居;停留Vt. 使安居;安排;解决39. vt. & vi. 遭受;忍受;经历40. 短语:遭受;患病41. n. 孤单;寂寞42. n. 公路;大路43. vi. & vt. 痊愈;恢复;重新获得44.短语:对……厌烦45. vi. & vt. 捆扎;包装;打行李n. 小包;包裹46. 短语:将(东西)装箱打包47. n. 手提箱;衣箱48. n. 玛戈(女名)49. n. 大衣;外套50. n. 十几岁的青少年51. 短语:与……相处;进展52. vi. & n. 闲话;闲谈53. 短语:相爱;爱上54. adv. 确实如此;正是;确切地55. vi. 不同意56. adj. 感激的;表示谢意的57. n. & vt. 不喜欢;厌恶58. 短语:参加;加入59. n. 提示;技巧;尖;尖端;小费Vt. 倾斜;翻倒60. adv. 第二;其次61. vt. 交换62. n. 项目;条款Uint21. n. 地下人行道;〈美〉地铁2. n. 电梯;升降机3. n. 〈英〉汽油(=〈美〉gasoline)4. n. 汽油;气体;煤气;毒气5. adj. 官方的;正式的;公务的6. n. 航行;航海7. vt. 征服;占领8. 短语:因为;由于9. adj. 本国的;本地的n. 本地人;本国人10. n. 艾米(女名)11. 短语:走近;上来;提出12. n. 〈美〉公寓住宅;单元住宅13. adv. 实际上;事实上14. 公元15. vt. 以……为根据n. 基部;基地;基础16. 短语:现在;目前17. adj. 逐渐的;逐步的18. adv. 逐渐地;逐步地19. n. 丹麦语adj. 丹麦的;丹麦人的;丹麦语的20. vt. 使富裕;充实;改善21. n. 词汇;词汇量;词表22.莎士比亚(英国剧作家,诗人)23.短语:利用;使用24. n. 拼写;拼法25. 塞缪尔.约翰逊(英国作家,批评家)26. 诺厄.韦伯斯特(美国词典纂家)27. adj. 较后的;后半的;(两者中)后者的28. n. 本身;本体;身份29. adj. 流利的;流畅的30. adv. 流利地;流畅地31. n. 新加坡(东南亚国家)32. n. 马来西亚(东南亚国家);马来群岛33. 短语:例如……;像这种的34. adj. 频繁的;常见的35. adv. 常常;频繁地36. n. 使用;用法;词语惯用法37. n. & vt. 命令;指令;掌握38. n. & vt. 请求;要求39. n. 方言40. n. 词语;表示;表达41. adj. 中西部的;有中西部特性的42. adj. 非洲的;非洲人的;非洲语言的43. adj. 西班牙的;西班牙人的;西班牙语的n. 西班牙人;西班牙语44. 短语:扮演一个角色;参与46. adj. 东方的;东部的47. adj. 东南方的;来自东南的48. adj. 西北方的;来自西北的49. vt. 辨认出;承认;公认50. n. 〈英〉卡车(=〈美〉truck)51. n. 萝丽(女名)52. n. 休斯敦(美国城市)53. n. 得克萨斯州(美国州名)54. n. 口音;腔调;重音55. n. 布福德(姓氏;男名)56. n. 莱斯特(姓氏;男名)57. n. 鲶鱼58. n. 闪电59. adv. 直接;挺直adj. 直的;笔直的;正直的60. n. 街区;块;木块;石块61. n. 出租车Uint31. n. 日记;杂志;定期刊物2. n. 运送;运输vt. 运输;运送3. vt. 更喜欢;选择某事物(而不选择其他事物)4. n. 不利条件;不便之处5. n. 费用6. n. 路线;路途7. n. 湄公河8. vi. 流动;流出n.流动;流量9. 短语:自从;自……以后10. vt. 说服;劝说11. vi. 骑自行车12. vi. 毕业n. 大学毕业生13. adv. 最后;终于14. n. 时间表;进度表vt. 为某事安排时间15. adj. 喜爱的;慈爱的;宠爱的16. 短语:喜爱;喜欢17. n. 缺点18.adj. 顽固的;固执的19. vt. 组织;成立20.短语:关心;忧虑;惦念21.△n. 细节;详情22.△n. 来源;水源23. vt. 决定;确定;下定决心24. adj. 坚决的;有决心的25.短语:改变主意26.n. 旅行;旅程27. n. 海拔高度;高处28.短语:下决心;决定29. 短语:投降;屈服;让步30.△n. 地图;地图集31.△n. 冰河;冰川32.△adj. 西藏的;藏族的;藏族人的;n. (西)藏语;西藏人;藏族人33.△n. 急流34.n. (山)谷;流域35.△n. 瀑布36. vi. 缓慢而行;踱步n. 一步;速度;步调37. n. 弯;拐角vt. (bent, bent) 使弯曲vi. 弯身;弯腰38.△n. (指河流等)蜿蜒缓慢流动39.△n. 三角洲40. n. 态度;看法41.△n. 珠穆朗玛峰42. vi. (指液体)沸腾;(水)开43. n. & vt. 预测;预报44.n. 小包;包裹45.n. 保险46.l n. 羊毛;毛织品47. 短语:照常48. adj. 可信赖的;可靠的49. n. 风景;视野;观点;见解vt. 观看;注视;考虑50.△n. 牦牛51. n. 枕头;枕垫52. n. 午夜;子夜53. 短语:在午夜54. n. 火焰;光芒;热情55. prep. 在……下面56.△n. 老挝(东南亚国家)57.△n. 老挝人adj. 老挝(人)的58. n. 庙宇;寺庙59. n. 洞穴;地窖Unit 41.n. 地震2.n. 地震3. 短语:立刻;马上4. n. 井5.△n. 裂缝;噼啪声vt. & vi. (使)开裂;破裂6.△adj. 发臭的;有臭味的7.△n. 农场;农家8. n. 管;导管9. vi.爆裂;爆发n. 突然破裂;爆发10. n. 百万11. n. 事件;大事12. 短语:仿佛;好像13. 短语:结束;终结14. n. 民族;国家;国民15. n. 运河;水道16. n. 蒸汽;水汽17. n. 污垢;泥土18. n. 废墟;毁灭vt. 毁灭;使破产19. 短语:严重受损;破败不堪20. n. 苦难;痛苦21. adj. 极度的22. vt. 损害;伤害23.△n. 幸存者;生还者;残存物24. vt. 破坏;毁坏;消灭25. n. 砖;砖块26. n. 水坝;堰堤27. n. 轨道;足迹;痕迹28. adj. 无用的;无效的;无益的29. vt. & vi. (使)震惊;震动n. 休克;打击;震惊30. n. & vt. 援救;营救31. vt. 使陷入困境n. 陷阱;困境32. n. 电;电流;电学33. n. 灾难;灾祸34. 短语:掘出;发现35. vt. 埋葬;掩埋;隐藏36. n. 矿;矿山;矿井37. n. 矿工38. n. 掩蔽;掩蔽处;避身处39. 短语:许多;大量的40.n. 标题;头衔;资格41. n. 记者42. n. 条;棒;条状物43.n. & vt. 损失;损害44. vt. 使惊吓;吓唬45. adj. 受惊的;受恐吓的46. adj. 令人恐惧的47. n. 祝贺;(复数)贺词48. n. 裁判员;法官vt. 断定;判断;判决49. adv. 真诚地;真挚地50. vt. 表示;表达n. 快车;速递51. n. 要点;大纲;轮廓52. n. 报刊的大字标题53. n. 骑自行车的人Unit 51. n. 质量;品质;性质2.△adj. 热心肠的3. adj. 吝啬的;自私的;卑鄙的4. adj. 积极的;活跃的5. adj. 慷慨的;大方的6.△adj. 随和的;温和宽容的7. n. 自我;自身8. adj. 自私的9. adj. 无私的;忘我的10. adv. 无私地;忘我地11. vt. (与to连用)献身;专心于12. adj. 忠实的;深爱的13.△n. 《圣经》14.△n. 侵略者15. vt. 建立;建设16. n. 共和国;共和政体17. n. 法则;原则;原理18.△n. 民族主义;国家主义19.△n. 生计;谋生20. adj. 和平的;平静的;安宁的21.△adj. 巨大的;庞大的22.△n. 飞跃;跳跃23. n. 人类24. n. 律师25. n. 指导;领导26. adj. 法律的;依照法律的27. n. 费(会费、学费等);酬金28.△n. 南非共和国有色人种的身份证29. 短语:失业30. adj. 怀有希望的;有希望的31.△非国大;非洲人国民大会;非洲民族会议32. n. 青年;青年时期33. n. 同盟;联盟;联合会34. 短语:青年团35. n. 舞台;阶段;时期36. vt. & vi. 投票;选举n. 投票;选票;表决37. vt. 进攻;攻击;抨击38. n. 暴力;暴行39. 短语:事实上40. 短语:使充气;爆炸41. adj. 相等的;平等的42. 短语:在危险、受罚、痛苦、忧虑等的处境中43. adj. 乐意的;自愿的44.adj. 不公正的;不公平的45短语:求助于;致力于46.△n. 引用语;语录47.△vt. 释放;发行48. 短语:丧失勇气或信心49. vi. 逃脱;逃走;泄露50. n. 毛毯;毯子51. vt. 教育;训练52.adj. 受过教育的;有教养的53. 短语:当权;上台54. vi. 请求;乞求55. n. 亲戚;亲属56. n. 恐怖;可怕的人;恐怖时期;恐怖活动57. n. 残忍;残酷58. n. 报酬;奖金vt. 酬劳;奖赏59. 短语:设立;建立60. vt. 判决;宣判61. 短语:被判处……(徒刑)62.[前缀] 反;抗;阻63. adj. 反黑人的64. n. 总统;会长;校长;行长65.△诺贝尔和平奖66. n. 意见;看法;主张。
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Module 1 Unit 1Multiple choices:1. 一When can I come for the photos ?I need them tomorrow afternoon.一They______ be ready by 12:00.A. can B. should C. might D. need2.He is the only one of the students who a winner of scholarship for three years.A. areB. have beenC. has beenD. has been3.A new camera here.They hope to finish it next month.A. will be builtB. is builtC. has been builtD. is being built4. with the size of the whole earth,the biggest ocean doesn’t seem big at a11.A. CompareB. When comparingC. ComparingD. When compared5.In recent years travel companies have succeeded in selling us the idea that the further we go .A. our holiday will be betterB. our holiday will be the betterC. the better our holiday will beD. the better will our ho1iday be6.When he 1eft co11ege, he got a job as reporter in a newspaper office.A./;aB. theC. a;theD. the;the7. made the schoo1 proud was more than 90%of the students had been admitted to key universities.A. What;becauseB. What;thatC. That;whatD. That;because8.---- How is everything going on with you in Europe?---- Quite well. Not so smoothly as I hoped, _________.A. thoughB. insteadC. eitherD. too9.An awful accident ,however,occur the other day.A. doesB. didC. has toD. had to10.---It’s been a wonderful Halloween party. Thank you very much.---___________. A. I’m glad you enjoyed it. B. No, thanks. C. It’s OK. D. With pleasure.11.You made the same mistake for _____ second time, dropping_____ n in the word government.A. a, theB. a, aC. the, anD. a, an12.I want quiet _______ of bread because I am _______ hungry.A. a bit; not a bitB. a little; a bitC. a bit; not a littleD. a little; not a bit13. I _______ him in 1998, that is to say, ______we each other for seven years.A. knew; have knownB. got to know; knewC. knew; knowD. got to know; have known14.I haven’t seen him_______.A. lateB. latestC. latelyD. later15.He will join us, but it doesn’t ________too much difference.A. doB. makeC. takeD. keep16.He can speak foreign languages, ________, French.A. such asB. for exampleC. namelyD. for an instance17.______finishing his homework, he went to play basketball.A. InB. UponC. AtD. With18.Rather than_______ a bike in the freezing weather, she prefers ______ a bus.A. to ride, to takeB. to take, rideC. take, to rideD. ride, to take19.How did you find the art show last Sunday?---_______.A. WonderfulB. By asking a manC. WonderfullyD. I didn’t know the way.20.All the teachers, were all __________ at the _________news.A. exciting, excitedB. excite, excitingC. excited, excitingD. excitedly, exciting21.He didn’t have ___________ experience in cooking.A. manyB. muchC. plentyD. few22.When does ________ begin in your country?A. the schoolB. a schoolC. schoolsD. school23.Your plan means ________more money. While I mean _______it.A. losing ; changingB. losing; to changeC. to lose; changingD. to lose; to change24. Did you ______ the club I told you?---- No, I didn’t.A. join inB. joinC. take part inD. attend25.He finished the task _______way, but I did it ________way.A. this; thatB. in this; oppositeC. in his own; in my ownD. in his own; my own26. Only in this way ________what you hope to do.A. you can achieveB. can you achieveC. you must achieveD. must you achieve27. I’m in _______while she is in _________.A. Grade One; second gradeB. Grade One; the second gradeC. the Grade One; second gradeD. the Grade One; the second grade28.We fail one student per year ________ average.A. in theB. on theC. in/D. at the29.----I don’t mind telling you what I know.---- You ______. I’m not asking you for it.A. mustn’tB. may notC. can’tD. needn’t30. Do you think _______easy to remember all the place names?A. thisB. thatC. itD. what31.Mr Wang as well as his students ________ music.A. are fond ofB. is fond ofC. were fond ofD. have been fond of32.It’s reported that the United States uses ______ energy as the whole of Europe.A. as twiceB. twice muchC. twice as muchD. twice much as33.My small village is no longer _____it was 5 years ago.A. thatB. whatC. itD. how34.We were swimming in the lake _______ suddenly the storm started.A. whenB. whileC. untilD. before35. Is the book you are reading _________?A. for freeB. free of chargeC. of one’s own free willD. freely36.What _______ it is to jump into the river in summer!A. a funB. the funC. funnyD. fun37.These mistakes are very _______ among students, so we are not surprised if you do wrong..A. ordinaryB. commonC. generalD. usual38.I’d like to buy a house--- modern, comfortable and ______ in a quiet area.A. in allB. above allC. after allD. at all39.You must go home right now, ______you?A. mustn’t notB. needn’tC. mustD. need40. I live in a house whose window _________.A. needs being repairedB. needs repairingC. needs to repairD. need to be repaired41. ________ he drives or takes the train, he’ll be here on time.A. WhatB. Whether C Why D. That42.When you leave the classroom, _______ all the lights are turned off.A. make sureB. make sure ofC. be sure aboutD. be sure of43. I _______ that the man has been fired.A. regret to sayB. regret sayingC. regret to have saidD. regret having said44. The shoes fitted him well ________ the color was a bit brighter.A. except forB. except whatC. except thatD. besides.45. ---What about the book?----It’s no more than an ordinary one is ___________.A. excellentB. of much useC. of little useD. useful46.About 2,000 people worked on the project, many of ________ were women.A. whomB. whoC. thatD. them47.This is the very place _________ he is going to live in next month.A. whereB. whichC. thatD. in which48.Have you seen the film “Titanic” _________ leading actor is world famous?A. itsB. whoseC. of whichD. that49. Do you know the person and his dog _________are standing at the gate?A. thatB. whoC. whomD. what50. All ________we need is time.A. whatB. whichC. thatD. whomUnit 21. The journey around the world took the old sailor nine months, ____the sailing time was 226 days. A. of which B. during which C. from which D. for which2. The media can often help solve problems and draw attention to situations_____ help is needed.A. whichB. ifC. whoseD. where3.---Would you please help me repair the computer this afternoon?--- _____ , but I'm having an important meeting this afternoon. What about tomorrow?A. It doesn't matterB. Best wishesC. Not at allD. I wish I could4. You should go to see him when he is so seriously ill, _____, he is your brother.A. BecauseB. After allC. At allD. Above all5. I went to Wang Fei that day. I wished him to give me _____.A. some advicesB. an adviceC. some adviceD. advices6. He came ______ and stopped to look at the picture _____.A. close; closelyB. closely; closeC. close; closeD. closely; closely7. Hurry up! I don't want to miss ____ my favourite singer.A. to seeB. to have seenC. seeingD. being seen8. Ten years passed. Mr Smith badly missed ___the happy summer together.A. them to spendB. them spendingC. them spendD. to spend9. Jack stay here and anyone else _____ out.A. goesB. goC. to goD. has gone10. I don't suppose anyone will volunteer, _________ ?A. do IB. don't IC. will theyD. won't they11. I agree that Jeff is a clever guy, but I think he _____ very foolish just now.A. had beenB. isC. has beenD. was being12. There are still five minutes to go. You still have time to _____ before the speech.A. get fixed upB. get to fix upC. get fixing upD. get to be fixed up13. The man insisted ____ a taxi for me even though I told him I lived nearby.A. findB. to findC. on findingD. in finding14. This great hall can _____ over 5 000 people in all. Which of the following is not suitable forthe sentence? A. contain B. include C. hold D. seat15. _____ you mention it, I do remember.A. ThatB. NowC. Now thatD. B or C16. Each time you ______ , start all over again.A. will fail B. failed C. fail D. have been failing17. The police forbade _____ out of the building.A. him to goB. to let him goC. him from goingD. from his going18. ----Would you like _____ the peaches or to help your mother pick them?----Well, I feel like ______ them.A. to sell; sellingB. selling; to sellC. to sell; to sellD. selling; selling19. At present, the ____ at home and abroad are very good for the development of our agriculture and industry. A. situations B. states C. interests D. condition20. He isn't a man who knows ______ to deal with people properly, but he does know _____ to do with all kinds of papers in front of him.A. what; whatB. what; howC. how; whatD. how; how21. The film brought the hours back to me _____ I was taken good care of in that far-away village . (NMET 2001)A. untilB. thatC. whenD. where22. Can you think out a situation _____ this idiom can be used ?A. whichB. thatC. for whichD. where23. I shall never forget the days _____ I lived in the country with my mother , _____ had a good effect on my life .A. during which ; and whichB. when ; whichC. which ; thatD. when ; who24. Is this factory ______ your father once worked in before he retired .A. whereB. whichC. the oneD. that25. It was an exciting movement for these football fans this year , _____ for the first time in years their team won the world cup.A. thatB. whileC. whichD. when26. --- Are you familiar with the music ?--- Yes. There was a time ______ this kind of music was quite popular .A. thatB. whenC. with whichD. about which27. I think you’ve got to the very point ______ a change is needed , otherwise you will fail .A. whenB. thatC. whereD. which28. Is there a restaurant around _____ I can have something to eat ?A. thatB. whichC. whatD. where29. We traveled together as far as Chicago _____ we said goodbye to each other .A. whichB. whenC. whyD. where30. He arrived in New York in 1890, _____ , some time later , he became a writer .A. whenB. whereC. thatD. which31. Will you please show me the way to the only hill _____ stands the ancient temple built in the 1860s ?A. thatB. 不填C. during whichD. where32. I hope you will find the valley a beautiful place _____ you may spend your weekend .A. thatB. whichC. whenD. where33. I will take you to the newly opened museum _____ you may see _____ you are interested in .A. which ; thatB. where ; thatC. in which ; whichD. where ; what34. We will go to the countryside at the beginning of June _____ , I think , probably the summer harvest will begin.A. ifB. whenC. whichD. while35. My father will give us each a gift on June 1 , _____ he promised to every one of us .A. whenB. whereC. on whichD. which36. Qingdao is a beautiful city , _____ I will pay a six-day visit to.A. whichB. whereC. to whereD. for which37. They stood at the window, _____ they could see _____ was happening in the street .A. where ; allB. which ; allC. from where ; whatD. from which ; what38. Can you tell me the name of the factory ____ you visited last week?A. whatB. whereC. /D. when39. He makes good use of the time _____ he can spare when he is not at work .A. whenB. thatC. in thatD. in which40. He has got himself into a dangerous situation ______ he is likely to lose control over the plane . (2001 上海高考)A. whereB. whichC. whileD. why41. I was always puzzled by the very question ______ he succeeded in doing that in such poor condition .A. thatB. whichC. howD. where42. It was 1949 , _____ the People’s Republic of China was founded .A. whenB. whichC. thatD. at which43. Anyone with some experience will never believe the reason ______ he raised at the conference .A. whyB. thatC. whatD. where44. No one can write a dictionary _____ everything is included .A. thatB. whereC. in whereD. to which45. Is this ___ you asked for help just now ?A the professorB oneC whomD who46. Do you still remember who is the man _____ is speaking on the line ?A. whoB. whichC. whomD. that47.Those who want to go to the museum please stay behind to wait for____ tickets after school is over.A. theirB. whoseC. yourD. that48. The soldier ran to the building, _____ flew a flag.A. on the top of itB. on its topC. on that’s topD. on the top of which49. She left her children to her aunt, ____she believed could take care of _____.A. who, themB. whom, themC. who,/D. that, whom50. It is the fifth time _____ late with his exercises this term .A. that he has beenB. that he wasC. when he has beenD. when he wasII. 完形填空 ACowboys were herders(牧人)of cattle(牛) with many hard tasks to perform in dealing with large herds on the range, the open grasslands of the Middle West. They became 1 in the days of the Long Drives, from about 1860 to 1886.Every 2 as the grass turned green, huge herds of Texas steers(菜牛)were driven north to railroad 3 centers. The drive northward 4 about half the length of the United States. 5 the cattle moved along, they ate grasses and grew heavier. 6 these centers the steers were shipped by rail, 7 to the Chicago market, where they were sold for about ten times their Texas 8 .The cowboys’ work was hard. From dawn to dark they performed their duties, 9 the cattle and repairing equipment. A small group of cowboys 10 full responsibility for a herd of thousands. They 11 deal with terrible weather and to 12 the herds against cattle thieves, Indian fighters, and 13 farmers, who feared the 14 of their crops.In 1886 15 very bad weather, which caused the death of huge numbers of cattle on the “open range”, the Long Drives 16 to continue. From then on the steers had to be cared for and fattened on large. 17 in the Texas area 18 being shipped north by rail; the cowboys now became more 19 farmers.20 the cowboy was not the exciting, romantic hero or villain(淘气鬼)of the “western” movies, he played an important role in the development of the American West.1.A.missing B.careful C.rough D.known 2.A.spring B.moment C.place D.state 3.A.receiving B.shipping C.selling D.bargaining 4.A.covered B.left C.went D.completed 5.A.Once B.After C.If D.As 6.A.Through B.By C.From D.At 7.A.gradually B.secretly C.mostly D.really 8.A.size B.weight C.reward D.price 9.A.waking up B.rounding up C.giving out D.looking over 10.A.met B.stood C.gained D.had11.A.had to B.ought to C.meant to D.used to 12.A.ask B.fight C.support D.protect 13.A.disappointed B.cruel C.angry D.terrible 14.A.safety B.ruin C.waste D.pain15.A.as a result of B.in case of C.thanks for D.at the mercy of 16.A.waited B.refused C.failed D.feared17.A.farms B.stations C.grounds D.centers 18.A.before B.for C.besides D.after 19.A.settled B.ordinary C.polite D.satisfied 20.A.Because B.When C.If D.AlthoughBI arrived in the United States on February 6, 1996,but I remember my first day here very clearly. My friend was waiting for me when my plane landed at Kennedy Airport at threeo'clock in the afternoon. The weather was very 1 and it was snowing, but I was too excited to 2 . From the airport, my friend and I took a taxi to my 3 . On the way, I saw the sky-line of Manhattan for the 4 time and I stared in astonishment at the famous skyscrapers and their man- made 5 . My friend helped me unpack at the hotel and then left because he had to go back to work. He promised to return the next day.6 my friend had left, I went to a7 near the hotel to get something to eat. Because I couldn't speak a single8 of English, I couldn't tell the9 what I wanted.I was very upset and started to make some 10 , but the waiter didn't 11 me. Finally, I ordered the same thing the man at the next table was 12 . After dinner, I started to walk along Broadway 13 I came to Times Square with its cinemas, theatres, neon lights, and huge crowds of people. I did not feel tired, so I 14 to walk around the city. I wanted to see 15 on my first day. I knew it was 16 , but I wanted to try.When I returned to the hotel, I was 17 ,but I couldn't 18 because I kept hearing the fire and police sirens(警笛)during the night. I lay 19 and thought about New York. It was a very big and interesting city with many tall buildings and big cars, and full of 20 and busy people. I also decided right then that I had to learn to speak English.1. A. warm B. hot C. cold D. cool2. A. look B. listen C. enjoy D. mind3. A. school B. hotel C. home D. office4. A. first B. second C. last D. only5. A. parks B. satellites C. beauty D. lakes6. A. Long before B. Shortly after C. Sooner or later D. Then7. A. restaurant B. sailor's shop C. bookstore D. post office8. A. sentence B. little C. word D. phrase9. A. boss B. cook C. waiter D. man10. A. sounds B. noise C. voices D. gestures (手势)11. A. listen to B. understand C. see D. serve12. A. reading B. writing C. ordering D. eating13. A. until B. when C. before D. after14. A. stopped B. tried C. decided D. continued15. A. something B. everything C. some things D. some thing16. A. necessary B. important C. impossible D. right17. A. tired B. excited C. surprised D. pleased18. A. go out B. eat C. have a bath D. fall asleep19. A. afraid B. awake C. aloud D. asleep20. A. noise B. streets C. places D. riversReading comprehension:2ALike most people, I was brought up to look upon life as a process(进程) of getting. It was not until in my late thirties that I made this important discovery: giving-away makes life so much more exciting. One discovery I made about giving-away is that it is almost impossible to give away anything in this world without getting something back, though the return often comes in an unexpected form.One Sunday morning the local post office delivered an important special delivery letter to my home, though it was addressed to me at my office. I wrote the postmaster a note of appreciation. More than a year later I needed a post office box for a new business I was starting. I was told at the window that there were no boxes left, and that my name would have to go on a long waiting list. As I was about to leave, the postmaster appeared in the doorway. He had overheard (偶然听到)our conversation.“Wasn’t it you that wrote us that letter a year a go about delivering a special delivery to your home?”I said it was.“Well, you certainly are going to have a box in this post office if we have to make one for you. You don’t know what a letter like that means to us. We usually get nothing but complaints.”1.The author wrote a note of appreciation to the post office because .A.he knew what such a note would mean to the post officeB.he had discovered giving-away made life all the more excitingC.he believed he would get something back by doing soD.the postman delivered an important letter in time2.When the author needed a post-office box, .A.many had applied for post-office boxes before himB.he asked to put his name on a waiting listC.he tried to see the postmasterD.he wrote the postmaster a note of appreciation3.The postmaster promised .A.to make a new post-office box for the authorB.to let the author have a post-office boxC.to include the author’s name on the listD.to deliver the author’s mail to his home4.The postmaster was ready to help because .A.he overheard their conversationB.he had received a lot of complaints for lack of post-office boxesC.he was thankful for the letter the author had writtenD.he was proud of their good serviceB★Share Flats Happy Valley, big flat, 1 room ready for use immediately, quiet andconvenient, fully furnished, park vies. $6,800 including bills with maid. Female nonsmoker. No pet. Sara 25720836 or 10077809.★Moving sale 2 armchairs, red/brown at $ 400 each; coffee table, black, wood, $800; oil painting, big, $900; Tianjin carpet, green, 3×7, $600; double bed, $500; mirror, big square, $500; fridge, big, double-door, $1,000; old pictures, $140, up, each; plants ,big and small. Tel:Weekend, 25216011/Weekday, 25245867.★Part-time laboratory assistant wanted by busy electronics(电子)company to help with development of computer. Should have an electronics degree and some practical experience of working in an electronics laboratory. Hours 9:30a. m.—1:00p.m. Mon.—Fri. Fourteen days paid leave. Salary $6,598—$10,230 dependent on experience. Letter of application to: Mrs. Chan, NOV A ELECTRONICS,45 Gordon Rd, Hung Hom Kowloon.5.The one who put on the first ad probably wants to .A.rent(租)a beautiful flat of her own in Happy Valley.B.find another lady to share the cost to rent a flatC.share her room in a flat with whoever has no petD.take on a maid to look after herself6.According to the ads, you may .A.call at 25720836 and see a beautiful parkB.hire a maid by paying $6,800C.buy two armchairs for $400D.buy an old picture for $ 1507.Once you can get a part-time job in NOV A ELECTRONICS,.A.you will get $6,598 each month no matter how experienced you areB.you will be given 14 days off each year besides weekendsC.you have to work at least 4 hours a dayD.you should write a letter of application to Mrs. ChanCMany cities around the world today are heavily polluted. Careless methods of production and lack of consumer demand for environment friendly products have contributed to the pollution problem. One result is that millions of tons of glass, paper, plastic, and metal containers are produced, and these are difficult to get rid of.However, today, more and more consumers are choosing "green" and demanding that the products they buy should be safe for the environment. Before they buy a product, they ask questions like these: "Will this shampoo damage the environment?' Can this metal container be reused or can it only be used once?"A recent study showed that two out of five adults now consider the environmental safety of a product before they buy it. This means that companies must now change the way they make and sell their products to make sure that they are "green", that is, friendly to the environment.Only a few years ago, it was impossible to find green products in supermarkets, but now there are hundreds. Some supermarket products carry labels (标签) to show that the product is green. Some companies have made the manufacturing (生产) of clean and safe products their main selling point and emphasize it in their advertising.The concern for a safer and cleaner environment is making companies rethink how they do business. Nolonger will the public accept the old attitude of "Buy it, use it, throw it away, and forget it. "The public pressure is on, and gradually business is cleaning up its act.1. It becomes clear from the text that the driving force (动力) behind green products is _____.A.public caring for the environmentB. companies' desire for bigger salesC.new ways of doing businessD. rapid growth of supermarkets2. What would be the best title for the text?A. Business and PeopleB. Business Goes GreenC. Shopping Habits Are ChangingD. Supermarkets and Green Products3. The underlined word" it" in the fourth paragraph refers to _____.A. a selling pointB. the company nameC. a great demand for health foodsD. the manufacturing of green productsDRecently, a professor of philosophy in the U. S. has written a book called Money and the Meaning of Life. He has discovered that how we dealt with money in our day-to-day life has more meaning than we usually think. One of the exercises he asked his students to do is to keep a record of every penny they spend for a week. From the way they spend their money, they can see what they really value in life.He says our relation (关系) with others often becomes clearly definite (= not doubtful or uncertain) when money enters the picture. You might have wonderful friendship with somebody and you think that you are very good friends. But you will know him only when you ask him to lend you some money. If he does, it brings something to the friendship that seems stronger than ever before. Or it can suddenly weaken the friendship if he doesn't. This person may say that he has a certain feeling, but it is not carried out in the money world, there is something less real about it.Since money is so important to us, we consider those who possess (own) a lot of it to be very important. The author interviewed some millionaires for his book.Question: What is the most surprising thing you have discovered about being rich because you are a self-made man?Answer: The most surprising thing is why people give me so much respect. I am nothing. I don't know much. All I am is rich.People just have an idea of making more and more money, but what is it for? How much do I need for a given purpose in my life? In his book, the professor uncovered an important need in modern society: to bring back the idea that money is an instrument (手段) rather than the end. Money plays an important role in the material world, but expecting money to give happiness may be missing the meaning of life.1. According to the first paragraph, people have not realized _________.A. how important money is in their day-to-day lifeB. that money is more important than their philosophy of lifeC. how one spends money shows what is important to himD. that their understanding of life is more important than money2. The author seems to believe that asking your friend to lend you some money ___________.A. is a good way to test your friendshipB. will do harm to your friendshipC. is a good way to break off your friendshipD. will strengthen your friendship3. What the American professor of philosophy wants to explain in the book is that ________.A. money is an endB. money is a meansC. money is everythingD. money is unimportant Unit 2 单词拼写:1. Sometimes you may feel that ___(成年人) around you do not understand many of the problems.2. He came back two days earlier than ________(预料的).3. I am afraid we can’t le you go without being ________(惩罚)。