总复习资料1
一年级上学期信息技术总复习资料
一年级上学期信息技术总复习资料
1. 电脑基本知识
- 计算机的定义和用途
- 计算机硬件和软件的区别
- 了解电脑的主要组成部分：显示屏、键盘、鼠标、主机箱等
2. 操作系统和文件管理
- 了解操作系统的功能和作用
- 认识常见的操作系统：Windows、Mac OS、Linux等
- 学会基本的文件管理操作：创建文件夹、复制、粘贴、删除等
3. 文字处理软件
- 介绍文字处理软件的功能和用途
- 研究基本的文字处理操作：输入、编辑、保存、打印等
- 掌握常用的文字格式设置：字体、字号、颜色等
4. 图像处理软件
- 了解图像处理软件的作用和应用场景
- 掌握基本的图像处理操作：裁剪、调整大小、旋转等
- 学会插入图片和添加文字等操作
5. 网络和互联网
- 了解网络的概念和基本原理
- 研究互联网的使用：浏览网页、发送电子邮件等
- 认识网络安全的重要性：保护个人信息、避免网络诈骗等
6. 安全和隐私保护
- 研究密码的设置和管理
- 掌握网络账号和隐私的保护方法
- 了解常见的网络安全威胁和预防措施
以上是一年级上学期信息技术的总复习资料，希望对你的复习有所帮助！。
(精编)小学语文总复习资料(词语复习1)
小学语文总复习资料（词语复习）词语复习要做到能正确地读，写已学过的词语，理解学过的词语的意思，并能正确运用。
能按要求给词语进生归类。
【积累词语】词是能够独立运用的最小语言单位。
每篇课文后面要求说说写写的词语，都应该正确地读写及积累。
【理解词语】理解词语的方法：１、弄清这个词语中，两个关键性的字的意思，然后考虑整个词语的意思。
例“凝神谛听”这个词，其中“谛”是“仔细”的意思，整个词语的意思是“注意力仔细地听”。
２、有些词不能光从字面上去理解，要注意它们的比喻或引伸义。
例：“目瞪口呆”这个词常常用来比喻惊讶的样子，而不能只从字面上去理解。
３、要结合语言环境，联系上下文来理解词语的意思。
如：“这茶叶的香味吓煞人。
嫩叶如同一条青龙上下翻飞，煞是好看”。
前一个“煞”是“杀”的意思，后一个“煞”是“极”的意思。
一、辨析词义辨析词义的方法：１、要搞清词语的感情色彩。
例：“团结”和“勾结”，都有一个“为了一个目的联合和结合“的意思。
“团结”用于好的方面，而“勾结”用于坏的方面，指“进行不正当的活动而暗中结合”。
２、注意运用的对象。
如：“爱戴”和“爱抚”，前者用于党、领袖、英雄，后者用于老一辈对后代。
３、注意范围的大小。
如：“辽阔”和“广阔”，都是指面积广大，但辽阔比广阔所指的范围更大。
４、注意程度的轻重。
如：“喜爱”和“酷爱”，都有爱好某事某物之意，但“酷爱”比“喜爱”的程度重。
５、考虑词语搭配的习惯。
如“提高水平”，“改进方法”，“改善生活”等。
二、用词造句要做到：１、正确理解词语的意思，注意它的使用习惯，特别要留心这个词语用在什么场合，常跟哪些词语搭配。
２、把意思表达完整。
三、词语的归类或排列，常见的可以从词语所代表事物的性质、特点、用途、概念大小，相关相对关系等方面来考虑。
多义词复习指导一字多义、一词多义是汉语言的一大特点。
在小学阶段，只要学生了解这一特点，并能在理解词语的基本义的基础上，联系语言环境理解词语的引申义和比喻义。
人教版初中语文总复习资料大全(中考必备)
初中语文总复习资料第一部分基础知识及阅读一、基本文体知识识记（一）表达方式：记叙、描写、抒情、议论、说明（二）修辞手法：比喻、拟人、排比、夸张、反复、借代、反问、设问、引用、对比常见的表现手法：象征、对比、衬托、借景抒情、托物言志、借古讽今、借物喻人、寓理于事、寄情于事、运用典故、先（后）抑后（先）扬、欲扬先抑。
（三）说明文分类：１、实物说明文、事理说明文２、科技性说明文、文艺性说明文（科学小品或知识小品）（四）说明顺序：１、时间顺序２、空间顺序：注意表方位的名词３、逻辑顺序：先总后分、由主到次、由表及里、由简到繁由此及彼、由现象到本质等。
（五）说明方法：列数字、作比较、举例子、打比方、分类别、作诠释、下定义、列图表、引用（名言、资料等）两大说明方式：平实说明与生动说明（六）说明文语言特征：准确（科学性）、生动（趣味性）、议论文语言特征：严密记叙文语言特征：生动、形象、准确（七）记叙的顺序：顺叙、倒叙、插叙（追叙）（八）散文的分类：抒情散文和叙事散文（九）散文的特点：形散而神不散（十）小说的三要素：人物、故事情节与环境（十一）小说的结构：开端、发展、高潮、结局（有的前有序幕，后有尾声）（十二）描写的方法：１、概括介绍与具体描写；２、肖像（外貌）描写、行为动作描写、神态描写、语言描写、心理描写；３、正面描写与侧面烘托４、小说中的环境描写：自然环境、社会环境（十三）议论文分类：立论、驳论（十四）议论文三要素：１、论点：解决“需要证明什么”２、论据：解决“用什么来证明”３、论证：解决“怎样来证明”（十五）议论文结构１、引论：提出问题２、本论：分析问题３、结论：解决问题（十六）论据类型：事实论据和道理论据（十七）常见论证方法：１、最基本的论证方法：摆事实、讲道理２、常用论证方法：举例论证、道理论证、引用论证（如引用故事则属于举例论证，如引用名言则属于道理论证）、对比论证、比喻论证、类比论证（常有“同样”“诸如此类”等词语）（十八）常见写作方法、表现手法：联想、想像、象征、比较、对比、衬托、烘托、反衬、先抑后扬、以小见大、托物言志、借物喻理、寓理于物、借物喻人、状物抒情、借景抒情、情景交融（十九）语句在文章篇章结构上的作用：总起全文、引起下文、打下伏笔、作铺垫、承上启下（过渡）、前后照应、首尾呼应、总结全文、点题、推动情节发展（二十）语句在表情达意方面的作用：渲染气氛、烘托人物形象（或人物感情）、点明中心（揭示主旨）、突出主题（深化中心）（二十一）语句特色评价用词：准确、严密、生动、形象、通俗易懂、语言简练、简洁明了、言简意赅、富有感染力、节奏感强、委婉含蓄、意味深长、发人深省、寓意深刻、引发阅读兴趣、说理透彻、有说服力。
人教版六年级数学总复习资料全 (1)
“数学总复习”复习资料（一）整数和小数1、整数和自然数用来表示物体个数的0,1,2,3…叫做（自然数）。
（“1”）是自然数的单位。
最小的自然数是（ 0 ）。
像…，-3，-2，-1，0，1，2，3，…这样的数统称为（整数）。
整数的个数是（无限）的。
整数分为正整数、0、负整数，自然数整数的（一部分）。
计数单位： 一（个）、十、百、千、万、十万、百万、千万、亿……都是计数单位。
十进制计数法： 每相邻两个计数单位之间的进率都是10。
这样的计数法叫做十进制计数法。
数位： 计数单位按照一定的顺序排列起来，它们所占的位置叫做数位。
位数：表示一个数数位的个数称为位数。
2、小数小数表示的就是十分之几，百分之几，千分之几……的数，一位小数可表示为十分之几的数，两位小数可表示为百分之几的数，三位小数可表示为千分之几的数 ……小数的计数单位是十分之一、百分之一、千分之一……或0.1、0.01、0.001……。
每相邻两个计数单位的进率是10. 熟记：51=0.2 52= 0.4 53= 0.6 54=0.8 41=0.25 43= 0.75 81= 0.125 83=0.375 85=0.625 87=0.875 小数点右边第一位是（十分位）,计数单位是（十分之一）;第二位是（百分位）,计数单位是（百分之一）……小数部分有几个数位,就叫做几位小数。
如3.305是（ 三 ）位小数 3、整数、小数的读法和写法：读整数时注意先分级再读数。
28302006000 读作： 读小数时注意，小数部分顺次读出每个数位上的数。
27.036 读作： 写数时注意写好后，一定要读一读仔细校对。
五亿零八千 写作： 三百八十点零三六 写作： 为了读写方便,常常把较大的数改写成用“万”或“亿”作单位的数。
如只要求“改写”，结果应是准确数。
768000000 =（ ）亿 如要求“省略”万（亿）后面的尾数，结果应是近似数。
768000000≈（ ）亿 4、小数的性质：小数的末尾添上0或者去掉0,小数的大小不变.5、小数点向右移动一位、两位、三位……原来的数就扩大(缩小)10倍、100倍、1000倍…… 小数点向左移动一位、两位、三位……原来的数就缩小到原数的( ) ……6、正数、负数0既不是正数也不是负数，0是正数和负数的分界点。
英语1总复习资料-语法重点.doc
复习自测题（1）——交际用语阅读下面的小对话，从A、B、C三个选项中选出一个能填入空白处的最佳选项，并在答题纸上写出所选的字母符号。
表达问候1.—Hello, r m Xiaoyan. Nice to meet you.A.r m nice, tooB.Fine, thank youC.Nice to meet you, too. I' m David Manning2.—Hello, Linda, how are you?A.Very good. Are you good?B.Very well, thank you. And you?C.Hello, Rose, how do you do?谈论工作3.—What do you do?A.I am a policemanB.I am washing the dishes nowC.I do my homework4.?一My father is a manager. My mother is a nurse.A.Where are your parentsB.What do your parents doC.What are your parents doing right now谈论时间5.一How long does it take from Beijng to London by plane?A.It costs 1,200 dollarsB.It takes about 7 hoursC.It' s not near enough6.一How long does it take to go there by train?A.It is 20 poundsB.It takes 20 hoursC.The training is very fast7.—— What time does the train leave?A.On Tuesday Bin the morning C.At half past five表达提议8.—The shower isn' t working.A.I come to call the plumberB.r 11 call the plumberC.I like calling the plumber9.—Would you like to go with us?A.Ok, r d loveB.I would likeC.r d love to10—?一An orange juice, please.A.What do you likeB.What would you likeC.Would you like an orange juice11.—.一That' s a good idea.A.When can you write the invitationsB.What do you think of the invitationsC.Why don' t we write the invitations now12.一Could you ring them up please? I' m sometimes quite nervous on the phone.A.Are you? I am fine.B.Yes, why don' t you call them?C.Yes, of course. I will phone them for you.13.一How about seeing a film this evening?—Yes,.A.that' s a good ideaB.pleaseC.that' s right问路与指路14.一Excuse me, where is the nearest bank, please?A.It' s not sureB.That，s all rightC.It' s next to the newsagent15.—Excuse me, how do I get to the gym, please?A.You take the number 866 bus from the supermarketB.It takes about an hour to get thereC.r d like to see them描述人的外貌16.— What does your English teacher look like?A.She likes singingB.She' s tall and has long, wavy hairC.She looks sad17.—What does her boyfriend look like?A.He is intelligent and confidentB.He likes playing footballC.He is quite tall with fair curly hair描述天气18.— What' s the weather like in this area?A.That' s all rightB.It' s rainyC.Yes, it' s fine询问价格（Unit 5 ）19.—How much is the rent of the flat?A.The hotel room is expensiveB.It is 450 pounds a monthC.It is near the center of the city询问病情20—?一ve got a bad cough.A.What' s the matter with youB.What is it likeC.How was your day yesterday 参考答案：■ 一l.C 2.B 3.A 4.B 5.B6.B7.C8.B9.C 10. Bll.C 12.C13.A14.C15.A16. B17.C18.B19.B20.A复习自测题（2）——词汇与结构阅读下面的句子和对话，从A、B、C三个选项中选出一个能填入空白处的最佳选项。
(完整版)七年级上册语文总复习资料
七年级上册语文总复习资料第一单元一、知识结构第1课《春》（一）文学常识作者朱自清，字佩弦，散文家、诗人、学者(称谓),著名的散文有《背影》《荷塘月色》.(二）文章主题：作者通过描绘大地回春、万物复苏、生机勃勃、草木花争荣的景象，赞美了春的创造力，激励人们珍惜大好时光、辛勤劳作、奋发向上，抒发作者对春天的喜爱和赞美之情.(三）结构:1、盼春:①段表达方式是抒情，表达作者急切盼望春到来的心情。
运用了拟人的修辞，赋予春天人的感情，它好像懂得人们的期盼,使人倍感亲切。
奠定了全文清新愉悦的抒情基调。
2、绘春:②段-—⑦段②段春回大地、万物复苏（宏观勾勒，绘春的总轮廓.)③段春草图。
④段春花图。
⑤段春风图。
⑥段春雨图。
⑦段迎春图。
｛描写具体，绘春｝3、⑧段赞春：新（新生）、美(美丽）、力（活力)(四）多个角度多种手法描绘景物.春草图-—颜色，质地,长势，侧面烘托（人在草地上的活动）春花图——颜色，味道，虚实（虚：联想到春华秋实）、动静、高低春风图——触觉,味道，听觉（从触觉写春风的柔和，从嗅觉写春风的芳香，从听觉写春风的悦耳，这就把本来无形、无味、无色的春风写得有形有味、有情有感。
）春雨图-—从静景写到动景，从物写到人，从近写到远.近景写春雨的滋润，用远景烘托春雨之夜的静谧。
其中“静默”：运用拟人的修辞,传达出春雨中安静和平的气氛，着力渲染了春雨沐浴的温馨。
迎春图--侧面烘托3。
课文结尾的三个比喻各自成段，它们的顺序能颠倒吗？如果把这三个比喻合为一段，表达效果会有什么影响？不能颠倒。
从刚刚落地的娃娃到小姑娘,再到健壮的青年,形象地点明了春的成长过程。
三个比喻各自成段，更能强调春的不同的生长过程，抒发作者强烈地赞美春天的真挚感情。
五、知识延伸有关“春"的诗句1.碧玉妆成一树高, 万条垂下绿丝绦。
不知细叶谁裁出，二月春风似剪刀。
（唐·贺知章《咏柳》)2.胜日寻芳泗水滨，无边光景一时新。
等闲识得东风面，万紫千红总是春。
【广州市】新人教版小学二年级数学上册总复习资料 (1)
二年级上册数学总复习资料一、米和厘米1、要想得到相同的结果，应选用同样的物品作标准进行测量。
2、常用的长度单位有：米和厘米。
3、要知道物体的长度，可以用（尺）来量。
4、测量较短物体通常用厘米作单位；测量较长物体通常用米作单位。
5、测量时：把尺的“0”刻度对准物体的左端，再看纸条的右端对这几，对着几就是几厘米。
6在计算长度单位时，先看单位是否相同，不同则要先把单位化成一样的单位再加减。
1米 =100厘米 1米-40厘米 =60厘米不能写成1-40 100厘米 -40厘米=60厘米7、在带单位加减法中，先看单位是否一样。
单位不同要先把单位化成相同单位再加减。
单位相同则直接相加减。
96厘米<1米解析：做这种比较大小的题时不能单单比较数的大小，还要看后面的单位，先转换成相同单位后在比较数的大小。
二、线段1、线段的特点：①线段是直的。
②线段有两个端点。
③线段是可以测量出长度。
2、画线段要从尺的（0）刻度开始画起，画到题目要求的数字那里。
比如：要求画一条5厘米长的线段。
就从0开始，画到5结束。
例题：(1)从刻度0到7是（ 7 ）厘米，就直接用7-0=7厘米。
括号就填7厘米。
(2)2到8是（6 ）厘米。
就直接用8-2=6厘米。
括号就填6厘米。
3、画一条比6厘米短3厘米的线段。
就是求比6厘米短3厘米是多少？6-3=3厘米。
所以题目要求就是画一条3厘米长的线段。
4、例题：任意画一个由三条线段围成的图形。
就是要求画一个三角形。
三、角、直角1、角有一个顶点，两条边。
角的两条边是射线不是线段。
射线就是只有一个端点，不能测量出长度。
（边）（顶点）（边）2、角的画法：从一个点起，用尺子向不同的方向画两条边，就画成一个角。
用三角板可以画出直角（课本41页图例）。
3、三角板上有3个角，其中只有1个角是直角。
正方形、长方形都有4个角，4个角都是直角。
4、要知道一个角是不是直角，可以用三角板上的直角比一比。
5、用三角板上的直角判断直角的方法：顶点对顶点，一边对一边，再看另一边。
人教版英语 初一(下)总复习资料(一)
七（下）期末总复习资料（一）I. 语法填空：1.I am __________ in the movie because it is very _____________(interest).2. I often ________(ride) to school ,but I ________ (take)a bus to school yesterday because my bike ________（not work）.3. ______ he come from _____ European country?4. He _______ give his son so much money. He is only a kid. He can ___(is) in the club.5 She needn’t ________(sit) there for a long time. She doesn’t need ______(stand) there for long.6.Could you please help me clean the floor? Sorry, I ______ _______ __, but I’m busy now.7.Do you think he can sing __________(beautiful)? Would you like ________(any) water?8. I _______(stay) at home and did my homework..9. An English teacher is __(want) in our school. We want an English teacher ___ our school show.10.It _______________(not rain) yesterday, so we _________(visit) the farm.11.Could you please ________(tell) the little boy ______(call) me back?12. --Would you like _______(something) to drink? --Yes, just a little coke.13.---Do you often read books __ the evening?--Yes. But __ Saturday evening I usually watch TV.14. ( )If you want to learn English well, you should read _______ English ______.A. everyday; everyday.B. everyday; every day.C. every day; everyday.D. every day; every day.15. Two days ago, we showed the friends from the UK ________ our school, and we showed our English ____ them.16. It’s time __________(go) to school. It’s time for ________(he) _______(clean) the classroom.17. _________ Father’s Day Tim gives his father a big surprise.18. --Thank you a lot. --Not ____ _____. --Your coat is very beautiful. --_________.19. He did his homework every day.(否定句).He ______ _______ his homework every day.20.It often t_____ me about half an hour _____(ride) my bike to school. It’s 10 m________ walk.21. A quarter of the students _______(be) good at ________(play) basketball.Three quarters of the food ______(be) for you. I think the bike ride ____ him about a quarter. _______ often takes the boy half a day to clean his room22. My father made me ________ (停留)at home. (make sb. do sth.让某人做某事)23. He ________the bridge to school every day.=He goes _________the bridge...(cross)24. The ice cream tastes ____, but it’s not ___ for health. I like the beef soup because it ____ nice.25. Tom _________ (not have) a good time yesterday.26. He didn’t buy ___________(something) because he ___________(think) they were not cheap..27.--Your coat fits(适合) you well. --Thank you. I _____ (buy) I when I was on vacation.28. Could you please ________(not smoke) here? Tom would like _______(buy) a pair glasses.29. The sun _________(shine) ________(bright) now and the flowers are s__________ to us.30. ______ the farm, you can _______ the fresh air and ride a horse.31. Our teachers always ___________(worry) about our study last year.32. Look, the girl is ________ ________ the teacher carefully.33. The idea may work well. =________ the idea ________ well.34.The number of the ____________(dolphin) __________________(become变得) smaller now.35. Tom usually ___________(swim) in the afternoon, but now he ___________(study) math36. There is a boy _______(read) a book in the classroom.On the playground I can see many students _________（play）basketball.Look! All the students _____________(listen) to the teacher ____________(careful)_____ you _____(write) a letter to Tom now? --No, _____ _____. I ________(play) games.37. I like ___(giraffe) because they are very ____(beauty).I like ___(tiger) but I dislike ____(lion)38. ___(get) good grades, he often spends half an hour ____(remember) English words every day.Please tell him ________________(not arrive) late again.All the students are having a good time ________(exercise) on the playground.39. The boy is of medium ____________(high) and he is also of medium b____________.My father is old now and he doesn’t remember w_______. He always f_________.They are twin brothers, but they behave(表现) and speak quite _____________(different). 40. --What does his sister _______? --She is a beautiful girl with two big eyes.--What does his sister ________? --She enjoys different books.--______ ______ your favorite teacher like? --He is very friendly.41.Sam opened the door, ______(walk) out and _________(find) a lovely dog outside.Last week he _____________(teach) us ____________(swim) and I learned very quickly.He didn’t buy ___________(something) because he ___________(think) they were not cheap.He read the book and then ______(go) to bed early.--Your coat fits(适合) you well. --Thank you. I _____ (buy) I when I was on vacation.--Will you see the film Dead Men Tell No Tales with us tonight? --No, I ____(see) it last week.Tom _________ (not have) a good time yesterday because he ________(not free) all day long.He was very _________ when he saw the ________ movie.(scare).II. 阅读，理解，并填空：Hello, guys. My ________ is Jim Smith. I’m a school _______ of 12. Now I’m a __________ Seven student.I live in Mianyang, and my home is not far _______ my school. So I often go to school by bike. I think it’s a good exercise. Sometimes I w_________ to school, and sometimes I go to school ____ a bus. B_______ I never ________ my father’s car to school __________ he is as busy as a bee every day.______ _______(至于) my desk mate Peter, he usually ______ to school ______ his bike. _______ takes him about（大约）25 minutes to get to school. Sometimes he w________ to school. But he never _________ a bus to school because ________ ________ ________(没有) bus station(车站) near his home. We are good ___________(朋友). ______ Wednesday we often play basketball._______ do you go to school? Please tell me about it.III. 理解句意填空或用所给的单词正确形式填空：1. It is important ____ people _____ learn English.2. --What did you do on Sunday afternoon? –Oh, I ___________ to enjoy the sunshine.3. Linda felt very ______ after the long way, so he stopped to have a rest.4. There ____ some interesting news in yesterday’s newspaper.5. He wasn’t interested in seeing movies but his sister ____.6. Who cleaned the floor? Tom _____.7. He isn’t interested in seeing movies but his sister _____.8. You look very nice in your new dress today. –Oh, really? I ___ (buy)it when it was on sale.9. The story is very ______ and all of us are ______ in it.(interest)10. It _____ me about 10minutes to finish _______(paint) the walls last week.11. Nancy didn’t like her new shoes but now he ________.12. She said she returned(归还) the book to the library. I’m sure she _____.13. How was your vacation yesterday? --_____ ____ ____, we had a nice day.14. Last Sunday it _____(rain), so we didn’t go to the Great Wall.15. They ______(enjoy) themselves at the party last night.16. Li Lei practices ______(speak) English every day.17. He often goes to school on foot but yesterday he ______.18. I ______(fly) a kite two days ago and I _____ a good time.19. Look！There are two white _______ (mouse) in the box. They _______(eat) something.20. Everyone was _______ when they heard the _________ news. (excite).IV.用所给的单词正确形式填空：1. Do you like _______(talk) with him?2. Let’s go ________(swim). He has to ________(stay) in Beijing for two days.3. Look! The little girl __________(eat) an egg for breakfast.4. Listen! Many students __________(sing) an English song in the next room.5. I often ________(walk) to school with my best friend.6. My mother _______(like) fruit and my father _______(like)vegetables.7. Now we ____(study) in No. 2 Middle School.8. Do you want _______(help) the old man?9. I _________(have to) go to school on foot, but she ___________(not have to).10. Can you _______(come) and _______(tell) him ________(study) hard?11. We should _______(sit) down and have a rest(休息)12. He should _________(not give) so much money to her.13. When(当….的时候) I come in the room, my mom _________(read) a newspaper.14. Now my sister _________(write)a letter to her best friend.15. I hope you can _(带来) me the good news.16. Would you like to __(带)the book to Tom? V．用所给单词的正确形式填空：1. Please __ (tell) me about your favorite subject.2. Where __ Michael Owen __(come) from.?3. Sometimes（有时）the boy ____(be) late for school4. Tom often _____(teach) me_____(swim).5. He ____(want) ____ (look) for a job in town.6. She can’t ______(find) work in this town.7. Mary often ________(go) to school on foot, but yesterday he ________.8. Would you like _______(be) a professional football player?9. They _______ (pass) the ball from one to another.10. Let us _____(give) them our best wishes. ______(go) for it , Steal Roses!11. The woman often ______(take) a look at her cat to eat things.12. What is she doing? She _____(wash) dishes(盘子)13. What ____ he _______(have) to do on weekends? And what ____ he ____(do）last weekend? V. 动词填空专项练习（用所给动词的适当形式填空）1.What time _________ your father _________ (go) to work every day? He _________ (go) to work at about eight after _________ (have) breakfast.2. _________ they ________ (have) lunch at school? Yes. What ________ they _________ (have ) for lunch ? They often _________ (eat) some rice.3. Would you like _________ (go ) __________ ( shop) with me ? OK, I'd like ___________ (go) with you . What do you __________ (want) _________ (buy)? I want __________ (buy) some milk. My daughter_________ (enjoy)_________ (drink) milk.4. Lily ___________ (like) ___________ ( run ) in the morning , but she ___________ ( not like ) ____________ (run ) this morning .5. How many students in your class often __________ (take) a bus to school? Only one ___________ ( go ) to school by bus . The others _________ (ride) bikes .6. ____ Nick often _____ (do ) some reading in the library ? No, he ____ ( not read ) there .7. Can you _______ (use) a computer? Yes, I can.8._________ (not shout) in class. ________ (listen ) to the teacher carefully.9. My parents often tell me _______ (not play) computer games and __________ (study) hard.10. What about __________ (sit ) here ? OK, let me _________ (sit) here.11. He is a very good, let him _______ (help) you _______(water ) the trees.12. _____ all the students _____ (get) the books? Yes, every student ________( get )a book.13. Can he ________( park停车) his car here? No, he mustn't __________ (park) his car here. ___________ (look) at the sign "NO parking”!14. How much water _____ (be) there on the table? How many bottles of orange _______ (be) there on it?15. He ________________ (not want) ____________ (be) late for school, so he ___________ (get ) up early every morning.16. Some of the students in our class ______ (come) from Japan. One of them _______(come) from America.17. Thanks for ____________ (help ) me. Thanks for your _________(help).能力训练A teacher was asking a student a lot of questions, but the student couldn’t answer any of them. The teacher decided to ask him (21)___ questions so that he could get a few right. “Who was Beethoven(贝多芬)?” she asked.The student (22)____ for some time and then answered. “A king.”“(23)______. He was a musician.” The teacher said. She was getting a little (24)____ now, (25)____ she was trying not to show it.Then she asked, “Who was the first president(总统) of the United States?”The student thought for a long time, but he didn’ t say (26)_____. Then the teacher got very angry and (27)_____, “George Washington!” the student (28)____ and began to walk to the door. “Come back!” the teacher said, “I (29)_____ you go.”“Oh, I am (30)___.” The student said. “I thought you called the next student.”( )21. A. very good. B. very easy. C. more difficult. D. difficult.( )22. A. listened. B. thinks. C. thought. D. guessed.( )23. A. No. B. Yes. C. All right.. D. Maybe.( )24. A. happy. B. glad. C. young. D. angry.( )25. A. so. B. but. C. or. D. and.( )26. A. anything. B. nothing. C. something. D. everything.( )27. A. smiled. B. spoke. C. shouted. D. talked.( )28. A. get in. B. gets up. C. got off. D. got up.( )29. A. doesn’t let. B. didn’t let. C. can’t let. D. will not let.( )30. A. sorry. B. sad. C. happy. D. glad.III. Reading Comprehension(20points)AMrs. Lee had a young cat, and it was the cat’s first winter. One evening it was outside when itbegan to snow heavily. Mrs. Lee looked everywhere and called its name, but she did not find it, so she called the police and said, “I lost a small black cat. Did anyone find it?”“No, Madam, “said the policeman. “But the cats are really very strong animals. They sometimes live for days in the snow, and when it melts(融化) or someone finds them, they are all right.” Mrs. Lee felt happier when she heard that. “And”, she said, “Our cat is very clever. She almost(几乎) …”The policeman was getting tired. “Well, then, “ he said, “Why don’t you put your telephone down? Maybe she is trying to telephone you soon.”( )31. Mrs. Lee’s cat ____.A. was at home.B. was very old.C. didn’t know its name.D. was lost. ( )32. Where was the cat when it began to snow heavily?A. At home with Mrs. Lee.B. In the snow with other cats.C. It stayed outside.D. it ran everywhere happilyin the snow.( )33. The story happened(发生在) _____.A. on a winter evening.B. when the policeman was tired.C. when the snow melted.D. on one morning.( )34. The word “she” in the last sentence(句子) means _____.A. one of Mrs. Lee’s friends.B. one of the policemen.C. Mrs. Lee’s cat.D. the policeman’s wife.( )35. The policeman was getting tired because ____.A. he had to look for the cat.B. Mrs. Lee felt happier.C. the cat was very strong and it was hard to find it.D. Mrs. Lee talked too much to him on the phone.II. 翻译：1. 对许多学生来说，上学是很简单的______________________________________________2. 他对我就像父亲一样_______________________________________________3. 他们的梦想就是有一些书本________________________________________________4. 老师经常告诉我们不要在教室里跑______________________________________________5. 骑自行车要花多久呢？_________________________________________________6. 我想知道他喜欢什么____________________________________________________7. 我们不能够过分依赖父母，而应该是我们自己____________________________________8. 你要么赶公交车上学，要么走路上学_________________________________________9. 赶公交车上学经常花我25分钟（3ways）__________________________________________10. 恐怕他今天不做作业__________________________________________________1.房间里有一个男孩正在看电视_________________________________________________2.你的暑假现在怎么样？_________________________________________________3.春天绵阳天气温暖，夏天炎热。
- 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、"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、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)。
1.电介质的极化有四种基本类型，其中在电场作用下所有电介质中都存在的极化类型
是；由离子结合成的电介质在电场作用下还存在；只在极性电介质中存在的极化类型称为；
由于两层（多层）电介质而在界面上堆积带电质点形成电矩的极化现象称为。
2.对于具有相同极间距（在相同电介质中）的①正极性针尖—平板电极系统、②负极性
针尖—平板电极系统、③平板—平板电极系统而言，按工频击穿电压从高到低的顺序排列为：。
3.气体中带电质点的产生方式有、、
和。
4.一般的，电介质极化分为以下四种基本类型：
、、、。
其中、伴随着能量的损耗。
5.汤逊理论认为，碰撞游离和是形成自持放电的主要因素。
6.雷电冲击50%击穿电压是指。
7.绝缘电阻试验不能发现设备的下列绝缘缺陷、。
二、问答题（40%）
1.变压器油受潮及混入杂质时，油间隙的工频击穿电压降低很多，为什么？在工程上采取
哪些提高击穿电压的措施？
2.在过电压保护中对避雷器有哪些要求？这些要求是怎样反映到阀式避雷器的电气特性
参数上来的？这些参数如何反映避雷器的性能优越？试全面比较阀式避雷器与氧化锌避雷器的性能。
3.变压器油受潮及混入杂质时，油间隙的工频击穿电压降低很多，为什么？在工程上采取
哪些提高击穿电压的措施？
4.变压器油中含有气泡时，因其使气泡中的电场较油中的，而气
泡的比油的，故导致油间隙的击穿电压。
5.请画出正弦交变电场作用下电介质的等效电路，为什么测量高压电气设备的绝缘电阻
时，需要按标准规范的时间下录取，并同时记录温度？
如图所示，Z =400Ω，l =120m ，α=30kV/μs 。
今有一无限幅值的斜角波t t u α=)(沿波阻抗为Z 的导线向B 点运动。
若t=0时波到达A 点，间隙JX 在t=2.4μs 时动作，试求：
1. JX 的动作电压；
2. B 点的最大电压；
3. 导线上的电压波形。
计算题：（20分）
如图1所示。
一波前陡度a 0＝30kV/µs 的斜角波从一条波阻抗Z=300Ω的半无限长架空线路传来，波速v=300m/μs ，在节点A 处接有一放电间隙，其放电电压U b =90kV ，线路AB 长300m ，线路末端B 点处接1200Ω电阻，以该斜角波到达A 点为时间起点，求放电间隙放电时间和B 点电压波形（0~4us ）。
图1。