2013 8A国庆假期作业(2)
2012-2013学年八年级上数学国庆假期作业(二)
2012-2013学年度第一学期八年级数学假日校本作业（2）班级 ___ 学号____姓名____ 完成本作业实际时间为 分钟 家长签字 一、选择题1. 16的平方根是 （ ）A ．4 B. ±4 C. 256 D. ±2562. 三角形的三边长a 、b 、c 满足ab c b 2)a (22+=+，则这个三角形是 （ ）A ．等边三角形 B. 钝角三角形 C. 直角三角形 D.锐角三角形3. 直角三角形的斜边比一直角边长2 cm ，另一直角边长为6 cm ，则它的斜边长 （ ）A. 4 cmB. 8 cmC. 10 cmD. 12 cm4. 下列说法中不正确的是 （ ）A.10的平方根是±10B.-2是4的一个平方根C.94的平方根是32 D.0.01的算术平方根是0.1 5. 等腰三角形腰长10cm ，底边16cm ，则面积是（ ） A ．296cmB ．248cmC ．224cmD ．232cm6. 下列语句中正确的是 （ ）A.带根号的数都是无理数B.不带根号的数都是有理数C.有理数与无理数的积为无理数D.无理数都是无限小数7. 下列四组数中，不是勾股数的一组数是 （ ） A ．15，8，17 B ．9，12，15 C ．7,24,25 D ．3，5，7 8. 如图，在Rt △ABC 中，∠C=90°，D 为AC 上一点，且DA=DB=5，又△DAB 的面积为10，那么DC 的长是 （ ） A.4B.3C.5D.4.59. 如图,若数轴上的点A ，B ，C ，D 表示数-2，1，2，3，则表示34-的点P应在线段 （ ）A. 线段AB 上B. 线段BC 上C. 线段CD 上D. 线段OB 上 10. 如图,一个圆柱高8cm,底面半径2cm ，一只蚂蚁从点A 爬到点B 处吃食，要爬行的最短路程是（π≈3） （ ）A. 20cmB. 10cmC. 14cmD. 无法确定 二、填空题：. 若一正数的两个平方根分别是2a －1与－a ＋2，则这个正数等于 .12. （1）0.05047（保留2个有效数字） ； （2）0.43万（精确到千位） ；（3）3.5×103精确到 位，有 个有效数字. 13. 32-的相反数是 ，绝对值是 .14. 若一直角三角形三边长分别为3和4，则第三边长为 .15. 若实数a 、b 满足32)2(2+-+-+a b b a =0，则a= , b= .16. 比较大小：（1）23__2-- ；（2）10__23+. 17. 数轴上，到原点的距离等于32的点表示的实数是 . 18. 已知实数a 、b 、c 化简22)(c b a c b a a -+-+--19. 如图，在△ABC 中，∠C ＝90°，AD AB ＝10㎝，AC ＝6㎝，△BDE 的周长为 ㎝. 20. 在长方形纸片ABCD 中，AD ＝4cm ，AB ＝10cm ，按如图方式折叠，使点B 与点D 重合，折痕为EF ，则DE ＝ cm. 三、解答题 21. 计算： （1）25936.0+（2） 31328)1(332--+-+-22. 把下列各数分别填入适当的集合内 023)3.(55.2,)2(,202.1,1000,3,9.0,196,2.0-------ππ,722… 有理数集合{ …} 无理数集合{ …} 整数集合 { …} 负数集合 { …}-3432 1 0-1 -2DC B O A ABDCAEBCDFC ′23. 如图，每个小方格的边长都为1. （1）图中BC 边的长是 ； （2）求图中格点四边形ABCD 的面积; （3）在数轴上作出表示17-的点．24. 如图，一架2.5米长的梯子AB ，斜靠在一竖直的墙AC 上，这时梯足B 到墙底端C 的距离为0.7米，如果梯子的顶端沿墙下滑0.4米，那么梯足将向外移多少米？25. 设m 是13的整数部分，n 是13的小数部分， 试求2m －n 的值.26. 数字穿墙，观察下列各式322+＝232；833+＝383；1544+＝4154…………… ① 试猜想b a +5＝5ba（a,b 为整数），则a ＝ b ＝ ② 请用只含一个字母n （n ≥2）的等式表示上述规律。
译林版英语八年级上册国庆假期作业
初二英语假期作业（8A Units1-2）【知识要点回顾】一、重点短语回顾：翻译下列短语1. 一些喝的东西2. 保守秘密3. 关心4. 说谎话5. 我最好的朋友之一6. 与她的朋友们分享东西7. 有一副好嗓子8. 使他看起来很聪明9. 有很强的幽默感10. 感到无聊11. 把我们的书和笔撞到地上12. 说任何人的坏话13. 与某人交朋友14. 环游世界15. 进行一次学校旅行16. 我的理想学校17. 获得第一18. 成为一名杰出的老师19. 有很多时间进行课外活动20. 为某人买某物(2种）21. 最喜欢法语22. 一门外语23. 在这周快要结束时24. 和我们的同班同学讨论这些书25. 在课堂上26. 主动给予我帮助（2种）27. 学生数量28. 有…周休假时间29. 花时间做某事30. 浏览31. 起初32. 继续做某事二、重点句型回顾：翻译下列句子什么使你的朋友如此特别？_____________________________________________________ 你相信他说的话吗？___________________________________________________________ 她乐意在任何时候帮助别人。
____________________________________________________ 当有事情困扰我时，我总是会去找她诉说。
_________________________________________ 他是我们班上最高的男孩。
______________________________________________________ 他比我们班其他任何一个男孩都高。
______________________________________________ 狗为什么不上学呢？__________________________________________________________学外语很有趣。
八年级数学上学期国庆假期作业二
八年级数学国庆假期作业（二）家长签名__________班级 学生姓名 一、选择题1．下列几组数中不能作为直角三角形三边长度的是 （ ） A ．7,24,25a b c === B ． 1.5,2, 2.5a b c === C ．25,2,34ab c ===D ．15,8,17ab c ===2．小强量得家里彩电荧屏的长为cm 58，宽为cm 46，则这台电视机尺寸是 （ ）A ．9英寸（23cm ）B ．21英寸（54cm ）C ．29英寸（74cm ）D ．34英寸（87cm ）3．等腰三角形腰长10cm ，底边16cm ，则面积 （ ）A ．296c mB ．248c mC ．224c mD ．232c m4．三角形三边c b a ,,满足ab c b a 2)(22+=+，则这个三角形是（ ）A ．锐角三角形B ．钝角三角形C ．直角三角形D ．等腰三角形 5．2(6)-的平方根是（ ）A ．6-B ．36C ．±6D ．6±6．下列命题正确的个数有：a a a a ==233)2(,)1(（3）无限小数都是无理数 （4）有限小数都是有理数（5）实数分为正实数和负实数两类 （ ）A ．1个B ．2个C ．3个D ．4个7．x 是2)9(-的平方根，y 是64的立方根，则=+y x（ ）A ．3B ．7C ．3，7D ．1，7 8．直角三角形两直角边长度为5，12，则斜边上的高 （ ）A ．6B ．8C ．1813D ．60139．直角三角形两直角边长为b a ,，斜边上高为h ，则下列各式总能成立的是（ ）A 、2h ab = B ．2222h ba =+C ．hb a 111=+D ．222111hba=+10．如图一直角三角形纸片，两直角边cm BC cm AC 8,6==，现将直角边AC 沿直线AD 折叠，使它落在斜边AB 上，且与AE 重合，则CD 等于（ ） A ．cm 2 B ．cm 3 C ．cm 4 D ．cm 511．以直角三角形的三边向外作正方形P 、Q 、K ，若S P =4，S Q =9， 则S K 为 （ ）A 、13B 、5C 、5或13D 、以上都不对AEBDC第10题图二、填空题12．下列实数(1)3.1415926 .(2)0.322(3)7(4(5)-(6)2π(7)0.3030030003...其中无理数有________，有理数有________．（填序号） 13．49的平方根________，0.216的立方根________的平方根________的立方根________．14．算术平方根等于它本身的数有________，立方根等于本身的数有________． 15．若2256x =，则=x ________，若3216x =-，则=x ________． 16．已知R t A B C ∆两边为3，4，则第三边长________．17．若三角形三边之比为3：4：5，周长为24，则三角形面积________．18．已知三角形三边长n n n n n n ,122,22,1222++++为正整数，则此三角形是________三角形．19．如果0)6(42=++-y x ，则=+y x ________．20．如果21a -和5a -是一个数m 的平方根，则.__________,==m a 21．三角形三边分别为8，15，17，那么最长边上的高为________．22．直角三角形三角形两直角边长为3和4，三角形内一点到各边距离相等，那么这个距离为________． 三、计算题23．求下列各式中x 的值2(1)16490x -=2(2)(1)25x -=； 3(3)(2)8x =-； 3(4)(3)27x --=．四、作图题 24．在数轴上画出8-的点．25．下图的正方形网格，每个正方形顶点叫格点，请在图中画一个面积为10的正方形． 五、解答题26．已知如图所示，四边形ABCD 中，3,4,13,12,A B cm A D cm B C cm C D cm ====90A ∠=求四边形ABCD 的面积．第24题图第25题图A27．如图所示，在边长为c 的正方形中，有四个斜边为c 、直角边为b a ,的全等直角三角形，你能利用这个图说明勾股定理吗？写出理由．28．如图所示，15只空油桶（每只油桶底面直径均为60cm ）堆在一起，要给它盖一个遮雨棚，遮雨棚起码要多高？29．如图中AC=40m ，CB=30m ，从教室到办公室，总有少数同学不走人行道AC 和BC ，而横穿草坪（从A 到B ），你认为他们这样走近了多少m ？30．如图，有一只小鸟从小树顶飞到大树顶上，请问它飞行的最短路程是多少米？（先画出示意图，然后再求解）．第27题图第28题图31．如图，在△ABC 中，∠ACB=900，AB=5㎝，BC=3㎝，CD ⊥AB 于D ， 求：(1)AC 的长；(2)△ABC 的面积；(3)CD 的长．32．如图所示，在R t A B C∆中，090A C B∠=，CD 是AB 边上高，若AD=8，BD=2，求CD ．33．㈠小明在玩积木游戏时,把三个正方形积木摆成一定的形状,正视图如图①,问题(1):若此中的三角形△DEF 为直角三角形,P 的面积为9,Q 的面积为15，则M 的面积为_______。
部编版八上语文国庆假期作业
部编版八上语文国庆假期作业（含答案）班级姓名一、语言积累及运用计54分1．下列加点字的注音完全正确的一项是( )3分A．凛．冽(lǐng) 要塞．(sài) 轻盈．(yínɡ) 锐不可当．(dǎng)B．颁．发(bān) 仲．裁(zhòng) 履．行(lǚ) 屏息敛．声(liǎn)C．悄．然(qiāo) 翘．首(qiáo) 湛．蓝(zhàn) 摧枯拉朽．(xiǔ)D．凌．波(lín) 镌．刻(juān) 督．战(dū) 一丝不苟．(gǒu)2．下列各组词语中汉字书写完全正确的一项是( )3分A．潇洒凌空凛冽眼花潦乱B．监视操纵桅杆阵耳欲聋C．馈退坠毁紧绷惮精竭虑D．浩瀚遗嘱吞食白手起家3．下列加点的词语使用有误的一项是( )3分A．军乐团奏响《检阅进行曲》，万众瞩目．．．．的阅兵分列式开始了。
B．舆论的力量就像排山倒海．．．．一般，令人无法抵挡。
C．中国人每年“舌尖上浪费”锐不可当．．．．，被倒掉的食物相当于2亿多人一年的口粮。
D．一位市民收到中奖短信，喜冲冲跑去银行汇钱，却在见到银行前一道防诈骗横幅后如梦初醒．．．．。
4．下列句子没有语病的一项是( )3分A．新春佳节，万家团圆，你们却依然坚守在祖国最北端的边防线上，你们的钢铁之躯为万家和乐奉献着自己的青春。
B．一首首诗，一段段合唱，一幕幕短歌剧，在两小时之内，将半个多世纪的残酷历史出现在我们眼前。
C．战争的历史与人类的历史一样久远，从远古战争中走来的现代人，依然没有走出战争的阴影。
D．能否规范地书写汉字，是对义务教育阶段学生书写的基本要求。
5．对下列句子的修辞手法判断有误的一项是( )3分A．航母就像汪洋中的一片树叶，在海上起伏行进。
(比喻)B．金戈铁马，气吞万里如虎。
(借代、夸张)C．发动机的咆哮声越来越大，舰载机越来越近了。
(夸张、拟人)D．她已经展开身体，像轻盈的、笔直的箭，“哧”地插进碧波之中，几串白色的气泡拥抱了这位自天而降的仙女，四面水花则悄然不惊。
【VIP专享】国庆假期作业(2)Unit2
九龙口初中国庆假期作业（2）姓名_____ 得分_____一、单项选择。
（每小题1分，计15分）( )1.All these shirts are out of fashion. I want ______of them.A. noB. noneC. neitherD. any( )2.——I’m afraid no one will agree with you.——I don’t think it_____.A. mindsB. mattersC. worksD. troubles( )3.——I’m going to Suzhou for a holiday this weekend.——_______you are there, can you buy me some green tea?A. BecauseB. WhileC. WhetherD. Though( )4.——Excuse me, but I don’t think you can smoke here.——Really sorry. I______ this is a none-smoking room.A. don’t knowB. didn’t knowC. have no idea D .haven’t known( )5.——We can wear that blue suit to the theatre.——Why not ______the grey one there for a change?A. try wearingB. trying to wearC. to try and wearD. to try wearing( )6.At weekends Millie prefers ______at home to ______out.A. stay; goingB. staying; goC. staying; goingD. to stay; go( )7.Rather than ____to school by bus, I preferred ______a bike.A. to go; to rideB. go; ridingC. going; to rideD. go; to ride( )8.There’s______with your son’s ears. So don’t worry about him.A. nothing seriousB. something seriousC. serious nothingD. anything serious ( )9.______is knocking at the door. Go and see who it is.A. NobodyB. No oneC. NoneD. Someone( )10.Since_____is here, let’s begin our lesson.A. allB. somebodyC. everyoneD. no one( )11.——How many apples are there in the bag?——There’s_______.A. nothingB. noC. no oneD. none( )12.What a beautiful skirt! It ________ you.A. looks well forB. looks right onC. looks good onD. looks good for( )13. Don’t trouble him. He is in a ______mood today.A .happy B. bad C. good D. terribly( )14.What made you ______I was late last time?A. thinkB. thinkingC. to thinkD. thought( )15.He was made _____from morning till night.A. workB. to workC. workingD. works三、完形填空。
2013 8A 国庆假期作业(1)
2013 8A 国庆假期作业（1）班级___________ 姓名______________ 学号_______重点词组：1.英式/美式英语____________________________________________2.一所男女混合的学校____________________________________________3.煮健康而又可口的饭____________________________________________4.在---将要结束的时候____________________________________________5.开车送某人去某地____________________________________________6.花大量时间实践与---谈论____________________________________________7.许多英雄/偶像____________________________________________8.彼此交谈得愉快____________________________________________9.在16岁时____________________________________________10.有最少的钱____________________________________________11.得最高/低分____________________________________________12.与…相同/与…不同____________________________________________13.与…有同样的尺寸/价格/长度____________________________________________14.有7天的假期_____________________________________________15.住在离……四千米的地方____________________________________________16.去某地举行一次学校旅行____________________________________________17.读完这本书______________________________________18.一座长100米的桥____________________________________________ 重点句型：1.学校是什么样子？______________________________________________________________________________________ 2.我知道怎样烧煮健康美味的饭菜。
2013 8A 国庆假期作业(3)
2013 8A 国庆假期作业（3）班级___________ 姓名______________ 学号___________一、单项选择：( ) 1. -–What makes you so _____today, Jack ?It is your first day of school.---Because my teacher says I am ______honest boy .A. happily, anB. happily, aC. happy, aD. happy, an( ) 2. He has a good sense of humour. He often makes people _______.A. to cryB. laughC. cryingD. laughing( ) 3. American students spend ________ time _________ homework than Chinese students.A. fewer, doingB. less, to doC. less, doingD. least, doing( ) 4.Shanghai is larger than ________ city in Japan.A. anyB. any otherC. allD. other( ) 5.The more you learn, the more ________ you can pass the exam.A. easilyB. easierC. easyD. easiest( ) 6. --- I always go there by bus. ---Why not _______by train? It’s faster.A. to try goingB. trying to goC. to try and goD. try to go( ) 7. _______all the stars, the sun is________ to the earth.A. In; the nearestB. Of; the nearerC. In; the most nearD. Of; the nearest( ) 8. Jake is just ___________as Tom.A. so strongB. as strongC. strongD. more stronger( ) 9.Suzy’s jeans are the same______ Anna’s but different from Elsa’s____ colour .A. as; inB. as; likeC. as; fromD. like; as( )10.What________ your school life_________ ?A. does; likeB. do; likeC. do; look likeD. is; like( ) 11. Look out! The knife is very sharp. You ______cut your finger.A. needB. mustC. shouldD. may( ) 12. My cousin is in _________ in Shanghai No.11 Middle School.A. 3th GradeB.3 GradeC. Grade 3D. Grade 3rd( ) 13.Chinese students have ______ weeks ______ in the summertime than American students.A. more; onB. fewer; onC. many ; offD. fewer; off( ) 14. ---______ham do you need, Madam? ----One kilo and a half.A. How manyB. WhatC. How muchD. Which( ) 15. It ______ me about 25 minutes to get to the railway station yesterday.A. spendsB. madeC. tookD. spent二、完形填空：1way of learning English is by 2it, talking as 3as one can . Sometimes you will get your words mixed up(混淆) and people will not understand you. But if you 4__ your sense of humour, you can always have a good laugh at the mistakes you made. Don’t be 5if people seem to be laughing at your 6. It is 7for people to be laughing at your mistakes than to be angry because they don’t understand what you are saying. 8rule (规则) for learning English is, “Don’t be 9of making mistakes. 10ma kes mistakes.”( ) 1. A. Good B. Better C. Best D. The best( ) 2 A. saying B. thinking C. using D. listening( ) 3. A. much B. many C. more D. most( ) 4. A. keep B. learn C. lose D. finish ( ) 5. A. unhappily B. happily C. happy D. unhappy( ) 6. A. words B. mistakes C. sentence D. speaking( ) 7. A. good B. more better C. much better D. the best( ) 8 A. The useful B. The most important C. The most interesting D. The most popular ( ) 9. A. think B. say C. see D. afraid( ) 10. A. All children B. Students C. Foreigners D. Everyone三、阅读理解：AOne day a farmer went out for a walk with his daughter. The farmer put on a pair of wrong shoes－one with a thick sole (鞋底) and the other with a thin one. So as he began to walk, he felt very uncomfortable. When he was just out of the house, he turned to his daughter and said, “Why should one of my legs be longer than the other today?”The daughter looked at his father’s legs carefully as he was walking, and then laughed, “Oh, no, Daddy, your legs are all right. You have put on the wrong shoes.”The farmer was very happy to hear that and said to himself, “What a clever daughter I have got!” Then he asked his daughter to go back and get the other pair of shoes for him.The farmer had only two pairs of shoes. When the daughter ran back to the house, she found that the other pair was also a pair of wrong shoes. She had to return to his father with nothing in her hands and said out of breath, “It’s no use changing them, Daddy! The shoes at home were not a pair, either!”( ) 1. When the farmer went out for a walk with his daughter, he put on a pair of ______ shoes.A. wrongB. comfortableC. oldD. new( ) 2. A pair of wrong shoes means ________.A. the shoes are not the farmer’sB. the shoes are too smallC. one of the shoes has a thick sole, the other has a thin one, they are not a pairD. the shoes are too big( ) 3. When the farmer began to walk, he felt very uncomfortable because ________.A. one of his legs was longer than the other oneB. he was ill that dayC. he wore a pair of wrong shoesD. the shoes were too small( ) 4. The farmer thought his daughter was a clever girl because ________.A. she could make shoesB. she could find out that her father wore a pair of wrong shoesC. she could find out a pair of right shoesD. she found that her father’s legs were sick( ) 5. The father asked his daughter to go and get the other pair of shoes for him and the daughter ___.A. brought back a pair of wrong shoesB. brought back of a pair of right shoesC. didn’t bring any shoes; she knew the other pair at home was not a pair, eitherD. couldn’t find anything at homeB任务型阅读：I have many friends, and they like different subjects best . John’s favorite subject is Computer Studiesbecause he thinks the computer can help him a lot in his study. He is a computer fan. He likes playing computer games very much, and he is good at playing it. Jack likes Art best because he likes drawing pictures a lot. Mary likes Chinese best because her father is from China. Her father teaches her Chinese at home. She loves China very much, and she wants to know more about China. Bob thinks Maths is very interesting, so he likes Maths best. David likes PE best because he likes doing sports. He is good at1.Mum____________(缝)a new school bag for me last night.lie is one of the ____________(亲密) friends of theirs.3.I’m fond of ________________(自然科学)because it is very useful.4.The girl’s face turned red because she was so ________________(紧张不安的).5._______________(英雄) appeared one after another after the big earthquake.6.Of all the _____________(科目) he likes English and Maths best.7.Mr Yang has lots of knowledge. So each of us ______________(钦佩) him very much.8.I brush my teeth ______________ (two) a day.9.That woman is 50 years old at _____________(little).10.We always have a great time ____________ (chat) with each other.11.Mrs Chan told us to write as __________________(care) as we could.12.If you don’t see the doctor at once, you’ll get even ______________(ill) later on.13.After a day’s walk, she felt so tired that she couldn’t go ________________(far).14.The l_____________ (long) of the Changjiang River is about 6300 kilometres.15.My best friend’s ____________ (smile) eyes make her look cheerful and friendly.16. We must speak English as often as p____________.17. Did he and you enjoy y______________ yesterday?18. L___________, the man didn’t hurt himself.19. Her father often r___________ letters from her last year.20. I w__________ when he will leave for Beijing.21. He did very _________ in the math test. （坏）22. They didn’t pack their bags yesterday. They went to see the sunset ___________.（代替）23. English is one of the _____________ languages.（外国的）24. The Eiffel Tower is made of metal and __________ tall.（真得）25. It’s time for her to go to the ___________.（飞机场）26. Thanks for (invite) me to your party.27. Everyone became(excite) when they saw the superstar.28. _________ up now, or you’ll be late for school. (get)29. They _______ to Beijing last week. (fly) 30. Don’t be afraid. We’re all your . (support)五、根据短文内容填空，使文章意思完整：My c 1 friend is my deskmate. She is good at English, but I am w 2 in it. Once I failed in a test. I f 3 very sad and I almost wanted to give up（放弃）this subject. Then my deskmate told me that English was a very i 4 subject and we must study it well. I was moved(被感动). From then on, I studied English h 5 than before. W 6 I had difficulties, I would go to her f 7 help.With her help, my English has improved（提高）a l 8 . We are now in d 9 schools. But I六、按要求改写句子1.He is a driver , too. (同义句转换)He is a driver _____________ _______________.2.What’s the meaning of the word ? (同义句转换)What __________________ the word _____________________ ?3. I am as old as you. (同义句转换)I am the ___________________ __________________ as you .4. He is the tallest boy in our class. (同义句转换)He is taller than _______________ ______________ boy in our class.5. The school is about five minutes’ walk from here. （对划线部分提问）_____________ ______________ is the school from here ?七、根据汉语提示完成句子1.因为他晚上从事太多的电脑工作，所以视力不好。
苏科版八年级数学上册国庆假期作业(2).docx
一、选择题：（ ）1．下列方程中，关于x 的一元二次方程是 22222113(1)2(1) 200 21A x x B C ax bx c D x x x y x+=++-=++=+=-．． ．． （ ）2、要使代数式22231x x x ---的值等于0，则x 等于 A 、1 B 、-1 C 、3 D 、3或-1（ ）3、已知关于x 的方程（a 2-1）x 2+（1-a ）x+a-2=0，下列结论正确的是A 、 当a ≠±1时，原方程是一元二次方程。
B 、当a ≠1时，原方程是一元二次方程。
C 、当a ≠-1时，原方程是一元二次方程。
D 、原方程是一元二次方程。
（ ）4、某饮料厂今年一月份的产量是500吨，三月份上升到720吨，设平均每月增长的百分率是x ，根据题意可得方程A 、500（1+2x ）=720B 、B 、500+500（1+x ）+500（1+x ）2=720C 、720（1+x ）2=500D 、D 、500（1+x ）2=720( )5、下列一元二次方程中,有实数根是A.x 2-x+1=0B.x 2-2x+3=0；C.x 2+x-1=0D.x 2+4=0（ ）6、关于x 的一元二次方程02=++m nx x 两根中只有一个根等于0，正确的是A 、0,0==n mB 、0,0≠=n mC 、0,0=≠n mD 、0,0≠≠n m（ ）7、已知：实数a 、b 且a ≠b ，又a 、b 满足a 2=3a+1,b 2=3b+1，则a 2+b 2等于A 、9B 、10C 、11D 、12（ ）8、已知关于x 方程221(3)04x m x m --+= 有两个不相等实根， m 的最大整数是 A ．2 B ．－1 C ．0 D ．l（ ）9、关于x 的一元二次方程x 2＋kx －1=0的根的情况是A 、有两个不相等的同号实数根B 、有两个不相等的异号实数C 、有两个相等的实数根D 、没有实数根（ ）10、关于x 的一元二次方程（m-2）x 2+（2m-1）x+m 2-4=0的一个根是0，则 m 的值是A 、2 B 、-2 C 、2或-2 D 、12二、填空题：1、关于x 的方程（m-1）x 2+（m+1）x+3m-1=0，当m_________时,是一元一次方程;当m_________时,是一元二次方程2、已知关于x 的一元二次方程x 2+kx+k=0的一个根是–2，那么k=_ ___。
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2013 8A国庆假期作业（2）一、选择填空: (15%)( )1.They didn’t go to the park_______the heavy rain yesterday.A. becauseB. asC. because ofD. since( ) 2. —Would you like_________ hot water？—Yes, please.A. some moreB. more someC. any moreD. more any( ) 3. Students in the USA spend ______ time _____their homework than we do.A. little, to doB. little, doingC. less, doD. less, doing( ) 4. _______ good news you have!A. What aB. How aC. WhatD. How( ) 5.The number of the students in Woodland School _____1550.A. areB. isC. beD. was( ) 6. We had 8 days ______during National Day.A. restB. leaveC. holidayD. off( ) 7. Diving is not as _______ as skiing.A. dangerousB. more dangerousC. most dangerousD. the most dangerous ( ) 8.We have ______ homework on Saturday than on weekdays.A. fewB. littleC. fewerD. less( ) 9. Mr. Lin is one of in our school.A. good teachersB. better teachersC. the best teachersD. the best teacher ( )10. The Maths problem is so difficult that _______ students can work it out.A. fewB. a fewC. littleD. a little( )11. Can you do the work better with ________ time and ________ people?A. little, lessB. few, littleC. less, fewerD. fewer, less( )12. Suzy’s jeans are the same______ Anna’s but different_______ Elsa’s.A. as; asB. as; likeC. as; fromD. like; as( ) 13. What________ your school life_________ ?A. does; likeB. do; likeC. do; look likeD. is; like( )14. Our teacher always helps us __________ our study.A. toB. withC. forD. about( )15. The teacher will give us a talk on how________ English well.A. to learnB. learnC. learningD. learned( ) 16. I took a boat trip ________ the bridge yesterday.A. onB. underC. aboveD. below( )17. There is _____ “r” in ______ word “answer”.A. a, theB. an, theC. a, /D. an, /( )18. Mr. Li asked us to help __________ to some drinks .A. himselfB. myselfC. ourselfD. ourselves( ) 19. When we were listening to the radio, suddenly we heard someone ________ at the door.A. knockedB. knockingC. knockD. knocks( ) 20. The Summer Palace is so ______. Can you feel its _______?A. beauty, beautyB. beautiful, beautifulC. beautiful, beautyD. beauty, beautiful ( ) 21. We have to do lots of ______ every day to keep ourselves ________.A. exercises, healthyB. exercise, healthyC. exercises, healthD. exercise, health( ) 22. ---How far is your home from the farm? ---- Two kilometers _______.A. farB. awayC. longD. long away( )23. Look! There is a chair ________ three legs in the meeting room.A. hasB. withC. ofD. have( ) 24. Can you pass the eraser from one student to __________?A. otherB. the otherC. anotherD. others( ) 25.The people in that country spoke to us very ______.A. friendB. friendlyC. kindD. kindly ( ) 26. It’s raining outside. Put on more clothes, _____you’ll be ill.A. andB. butC. orD. though( ) 27. I hope you __________us.A. can be able to joinB. will able to joinC. will be able to join D .will be able to join in ( ) 28. ______ man he is! He can move the heaviest box.A. How strongB. What strong aC. How a strongD. What a strong( ) 29. Excuse me, when will the train _______?A. arrive atB. get toC. reachD. arrive( ) 30. “I’ll do it tomorrow.” “________ it today?”A. Why not to doB. Why don't do C Why not do D. Why do you do二、用所给的动词填空10分1. Millie hopes ___________ the Palace Museum. ( visit)2. “Stop ________! Mr. Li is coming.” shouted Sandy. (talk)3. If you study hard, you ___________ English well. (learn)4. Look! The children ____________ in the river. (swim)5. Remember ___________ off the light when you leave. (turn)6. He enjoyed ___________ TV very much. (watch)7. _________ up now , or you’ll be late for school. (get)8. The teacher told us ___________ any noise in the classroom. ( not make)9. He agreed _________ at the meeting. (speak)10. They ____________ to Beijing last week. (fly)三、任务型阅读What do you think of the most important inventions in the world? The TV? The printing? The telephone? Or the computer? A report shows that they are not the only important inventions. Here are three other important inventions.One of the simplest in ventions is the toilet. Before toilets, waste ran into rivers from people’s houses. Illnesses were common in big cities, and it was often difficult to find clean drinking water.Animal food is another important invention. Before the invention, most animals were killed every autumn because there was not enough food for them in winter. After hay became a kind of common animal food, animals could live through the long winter.The third great invention is glasses. Glasses help people read, write and do “close work” after the age6. __________7. __________8. __________9. __________ 10. _________四、用所给单词的适当形式填空：（15%)1.Watching TV is better than________________ (做) housework.2.I’m fond of ___________(自然科学)because it is very useful.3.English is one of the most important _________（科目）in high schools4.We always have a great time ____________ (chat) with each other.5.I brush my teeth ________ (two) a day.6.The_______（长度）of the Changjiang River is about 6300 kilometres.7.My mum can cook _________ (味道好的) meals.8.What is your __________ (理想的) school like?9.Of all the foreign ________(语言), English is the most popular in China.10.I can cook for ______ ( 我).11.My mother makes me healthy and _______ ( 好吃的) meals.12.The students in the USA have __________ (少)homework than the students in Britain.13.English is one of the most important _________ (语言) in high schools14.He is a true friend. I __________ (相信)what he says.15.I study at a ________(混合) school in Dongtai.16.Wang Lin got the first place in the English word ___________ (竞赛) .17.I hope you can give me some _________ (建议) on how to learn English well .18.He is a very clever boy , he can answer the teachers’ questions _________ (正确地).19.He is 1.75 metres in ________ (高度), he is the tallest boy in our class.20.In England, we call it “autumn”, but in America, they call it “__________”.21.Who is _________ ( lazy), Hobo or Eddie?22.Thank you for _________ (tell) us your ideal school.23.Of all the things, the one on the left is the __________ (bad).lie is a good student. She is in the_______________ ( nine ) grade this term..25.I think swimming is much ___________ (easy) than diving.26.Thank you for _________ (tell) us your ideal school.27.Of all the things, the one on the left is the __________ (bad).lie is a good student. She is in the_______________ ( nine ) grade this term.29.I know something about the film. Can you tell me __________ (much)?30.English is a very _________ (use) language in the world today.31.We must speak English as often as p____________.32.Did he and you enjoy y______________ yesterday?33.L___________, the man didn’t hurt himself.34.Her father often r___________ letters from her last year.35.I w__________ when he will leave for Beijing.五、根据短文内容和首字母提示填入单词,每空一词(10%)AI always feel tired after eight classes a day, so my dream school s__1___ at 8:30 a.m. and f___2__ at 3:30 p.m. There are four l___3____ in the morning and two in the afternoon. We can choose our f__4___ lessons to learn. We can s__5____ more time doing some outside reading. The students do after-school a__6____ for one and a half hours every day. We n eedn’t do a lot of homework. We are all happy to stay at school.Besides that, my dream school looks l__7___a big garden. There are many kinds of flowers around the modern buildings. Sweet perfumes are diffused all around. If I want to have a rest, I can lie on the grass, listen to m__8____ by the lake or look out at the flowers from the classroom windows.The teachers here are kind and helpful. They are not only our teachers but also our good friends. The students are polite and f__9____. We all know how to keep our school clean and tidy. There is no litter around the campus.I love my d__10_____ school. We will grow up to be happier there.1.__________2. __________3. __________4. __________5. __________6. __________7. __________8. __________9. __________ 10. __________BMr. Zhou and his students are on the train. Everyone is e_1 .They’ll arrive in Shanghai. Now, they are on their w__2__to their sister school by b 3 . The school is not far f 4 their hotel. Mr. Zhou becomes more excited. He is from Shanghai. His parents and his friends will be glad to s_5_ him. He and his students are t___6____ about their plan in the bus. First, they will study in their sister school f 7 months and then they will see some i 8 places in Shanghai. About four months l 9 , they’ll go back t10 Nanjing.1.__________2. __________3. __________4. __________5. __________6. __________7. __________8. __________9. __________ 10. __________六、完成句子。