200道中考易错点试题
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2023部编版初中语文中考总复习字音字形相关试题易错题精选附答案解析1.下列词语书写完全正确的一项是()A.朗润矜持见义思迁家喻户晓B.遨游娴熟和颜悦色因地治宜C.斟酌荣膺人情世故相辅相成D.聪颖鼎盛穿流不息取义成仁2.下列词语中加点字注音完全正确的一项是()A.莅.临(lì)驰骋.(chěng)花团锦簇.(zù)拈.轻怕重(niān)B.热忱.(chén)宽宥.(yòu)刨.根问底(páo)锲.而不舍(qì)C.校.对(jiào)绰.号(chuò)忍俊不禁.(jìn)坦荡如砥.(dǐ)D.纤.维(xiān)缄.默(jiān)间不容发.(fà)诲.人不倦(huì)3.下列词语书写正确的一项是( )A.选聘安祥锋芒毕露轻歌曼舞B.恣睢陨石吹毛求瘦相辅相承C.震悚禁锢浮光掠影忸怩作态D.斟酌旁骛重峦叠障千钧重负4.下列词语的书写,不完全正确的一项是()A.错落蹉跎挫折措手不及B.环绕涣散魔幻容光换发C.飘零聆听绫罗壮志凌云D.休憩修葺栖息休戚相关5.选出下列加点字注音全部正确的一项()A.酝酿(liàng) 缄默(jiān) 妖娆(ráo) 振聋发聩(kui)B.憔悴(cui) 矗立(chù) 踌躇(chóu) 殚精竭虑(dān)C.襁褓(qiáng) 摇曳(yè) 静谧(mì) 吹毛求疵(chī)D.炽热(zhì) 亵渎(xiè) 叱咄(chù) 强聒不舍(ɡuō) 6.下列各组词语中,汉字书写全都正确的一组是()A.帐篷辐射鸠占鹊巢大庭广众B.照壁泄气矫揉造做喜出望外C.独裁狼藉无精打彩眼花缭乱D.取缔决别望眼欲穿断章取意7.下面各组词语中加点字的注音,完全正确的一项是()A.统筹.(chóu)恬.静(tián)销声匿.迹(ruò)B.静谧.(mì)禁锢.(gù)开卷.有益(juàn)C.翘.首(qiáo)渲.染(xuān)气冲斗.牛(dǒu)D.教诲.(huǐ)闲暇.(xiá)不言而喻.(yù)8.小红从课文中摘抄了一些精彩的观点句,其中有错别字的一项是()A.仰之弥高,越高,攀得越起劲;钻之弥坚,越坚,钻得越锲而不舍。
中考生物易错题汇编试题及答案一、选择题1.“生物体的结构与其功能相适应”是重要的生物学观点,下列的叙述与此观点,不相符的是()A.根冠细胞体积较大,细胞壁薄,有利于保护根不被土壤颗粒磨伤B.小肠绒毛和绒毛内毛细血管的壁都很薄,有利于营养物质的吸收C.神经细胞有许多突起,有利于接受刺激产生并传导神经冲动D.蛇的外骨骼能够保护内部柔软结构,防止体内水分散失,有蜕皮现象2.某种金合欢有大而中空的刺,蚂蚁栖居其中,并以金合欢嫩叶尖端的球状小体为食。
为探究栖居蚂蚁对金合欢生长的影响,用金合欢幼苗进行实验,研究结果如下表。
实验说明栖居蚂蚁对金合欢的生长A.有促进作用B.有抑制作用C.有利也有弊D.无任何影响3.下列有关测量的说法,错误的是()A.测量体温时,将体温计消毒后立即罝于腋下并夹紧,测量时间为3—5分钟B.可以用量筒和水来测量一粒葡萄的体积C.可以采取多次测量取平均值的方法,尽可能减少误差D.利用方格纸可以粗略测算一片叶片的面积4.遗传学家把同种生物同一性状的不同表现形式称为相对性状。
下列叙述正确的是()A.控制相对性状的基因携带有相同的遗传信息B.具有隐性性状的个体只能产生一种类型的生殖细胞C.具有显性性状的个体自交,其子代只表现显性性状D.具有相对性状的两亲本杂交,后代只表现显性性状5.安丘蜜桃是我市的名优果品之一。
下列关于安丘蜜桃的叙述,错误的是()A.根系发达是蜜桃适应干旱环境的重要因素B.桃核的硬壳部分是由珠被发育而来的C.枝芽中的生长点能产生新的芽结构D.夏季修剪能有效地促进花芽的形成6.某同学选取生长旺盛的盆栽斑叶植物进行探究。
先将植株放在黑暗处一昼夜,然后选取一片较大的带白斑的叶片(B区是白斑区,其余部分是绿色的),进行如下处理,将E区用铝箔上下盖起来,D处主叶脉用小刀切断,再将它移至阳光下数小时。
假设A、B、C、E 各区域形状大小一致,下列有关该实验的叙述错误的是A.将该叶片取下脱色处理后,滴加碘液,不变蓝的区域有A区、B区和E区B.探究光合作用是否需要水,应选取A区和C区形成对照C.若设置A区和B区进行对照,目的是探究植物的光合作用是否需要叶绿体D.若要探究光是否是光合作用不可缺少的条件,可选取C区和E区进行对照7.对野外高大的被子植物进行分类,若需要采集标本作为分类的重要依据,采集的标本可以不包括()A.根B.花C.果实D.种子8.“万条垂下绿丝绦”,发育成“绿丝绦”即枝条的是()A.胚轴B.胚乳C.枝芽D.花芽9.人的有耳垂与无耳垂是一对相对性状,由一对基因控制,某家族该性状的表现如表所示,则下列判断正确的是()第一代第二代第三代家族成员祖父祖母父亲母亲儿子性状有耳垂有耳垂有耳垂有耳垂无耳垂A.祖父和祖母的基因组成一定相同B.父亲和母亲的基因组成不一定相同C.儿子的基因组成可以确定D.父母亲的第二个孩子有耳垂和无耳垂的几率相等10.依据生物的某些特征,可以将我们学过的生物分成如图所示的三个类群。
中考易错单选择题100题(含详细解析)中考易错单选择题100题1. ---Do you know what he did all day?---He spent as much time playing as he ______.A. studyingB. was studyingC. studiedD. did studying2. I can’t say ______I want to see him again. We haven’t seen each other for a long time.A. how longB. how soonC. how oftenD. how much3. It is said that land animals ______ from sea animals.A. were developedB. developedC. are developingD. develops4. ---Would you like some coffee?---Yes, and please get me some milk, too. I prefer coffee ______milk.A. toB. withC. thanD. of5. ______ made his teacher unhappy.A. Tom came lateB. Tom’s came lateC. Tom’s lateD. Tom’s coming late6. Father asked Edison ________.A. what was he doing that forB. why he was doing that forC. how he was doing that forD. what he was doing that for7. We are going to have the sports meeting _____it _______tomorrow.A. if, rainsB. unless, will rainC. unless, rainsD. when, will rain8. ______ of the students in our class _______ from the country.A. Three fifth, isB. Three fifths, areC. Third fives, areD. Three five, is9. News can _____every corner of the world with the help of the Internet.A. reachB. arriveC. getD. reach to10. Here is only one seat for the old man________.A. to sitB. sittingC. sitting onD. to sit on11. Though this pair of shoes is a bit expensive, I would like to________.A. try them onB. try on themC. try them outD. try out them12. How can we finish ____ much work in ___a short time?A. so, soB. such, suchC. so, suchD. such, so13. Last night, he had his car________.A. to stealB. stoleC. stealingD. stolen14. Last night several young men ________the bank of lots of money.A. stoleB. robbedC. tookD. got15. Where was this big egg_____?A. liedB. lainC. laidD. lay16. _______ school, we can get much knowledge.A. BecauseB. Thanks forC. Thanks withD. Thanks to17. You’d better think about ________ a car now.A. whether buyB. if buyC. whether to buyD. if to buy18. He talks too much as if he ______everything.A. knowsB. knewC. has knownD. to know19. He will come to stay with us for _________________ next month.A. some time sometimeB. sometime some timeC. sometimeD. some times20. This radio program is well worth________.A. listeningB. listening toC. watchingD. to listen21. He must be a doctor, _________?A. mustn’t heB. must heC. is heD. isn’t he22. This building is taller than _________one around it.A. any otherB. another oneC. anyD. some other23. Though he live________, he doesn’t feel ________ because he can enjoy himself at home.A. lonely, lonelyB. alone, aloneC. alone, lonelyD. lonely, alone24. Yangzhou High School sounds _________ a good one. But I would like to have more information about it.A. /B. asC. likeD. what25. ---How long_______ you _______ the English dictionary?---About half a year.A. have, gotB. did, buyC. have, hadD. have, bought26. _______ my great surprise, such a little boy can draw so many beautiful pictures.A. InB. WithC. ToD. For27. _____the old man spoke, ____he became.A. The more, the angryB. The more, the more angrilyC. The more, the angrierD. The most ,the angrier28. ____the help of my English teacher, I did well in English last term.A. UnderB. InC. WithD. For29. She _____a teacher, but now she is a doctor.A. used beB. used to beC. was used to beD. was30. What do you think __________him change his mind?A. to makeB. madeC. makeD. making31. They are practising _______in the hall.A. danceB. to danceC. dancingD. to dancing32. It is _____that we all like to read it.A. so good a book.B. such good a bookC. so a good bookD. such good books33. She often offers _______.A. us with some foodB. some food to usC. us to some foodD. money me34. Most sharks feed _____ fish and other animals.A. withB. forC. onD. by35. ---Can you look after my daughter for me while I am away?---______.A. It’s a pleasureB. With pleasureC. Not at allD. You’re welcome36. Can you think of a way ________ it?A. doingB. doC. to doD. of do37. I’ll get her _______harder. You wait and see.A. studyB. to studyC. studiedD. studies38. Hearing his mother’s voice, the child couldn’t wait _______out.A. rushingB. to rushC. rushedD. for rushing39. The king _______himself from a leaning tree.A. hungB. hangedC. hungedD. hang40. Jim got up early _______ he caught the early train.A. becauseB. orC. so thatD. until41. When _______the PRC______, do you know?A. did, findB. did, foundC. was, foundD. was, founded42. What’s six _________ seven?A. multipliesB. multiplyingC. multipliedD. multiplied by43. My watch has stopped. It seems that I’ll go and _____ this afternoon.A. have someone repaired itB. have someone to repair itC. have someone repair itD. have it repair44. I’m sure that their team will ______ ours.A. failB. takeC. winD. beat45. The flight was put off ________ fog.A. becauseB. as the resultC. as a result ofD. as46. He watched the game with a ______look.A. surprisingB. surprisedC. surpriseD. surprises47. _____the time he got up, the road had already be covered with think snow.A. ForB. ByC. AtD. Until48. It’s very ________ to talk with him.A. worthB. rewardingC. deserveD. pleasure49. To help animals is _______humans themselves.A. helpB. helpingC. helpfulD. to helping50. Have you seen the pen ______I have lost?A. whatB. thatC. whoD. whose51. The boy was too _______ to move when the train came near.A. afraidB. frighteningC. frightenedD. frighten52. Water must be kept _______away.A. to runB. runsC. runningD. from running53. He is the ______of his parents. They are very _______of him.A. proud, prideB. pride, proudC. pride, prideD. proud, proud54. Mum, my shoes are______. Can I have a new pair?A. wearing outB. wornC. worn outD. broken out55. _______! You have a lot of time to go.A. Don’t rushB. Don’t rush outC. Don’t lookD. Don’t go56. He had lived in this city _______I moved here. But I hear that he will leave this city_______.A. long before, before longB. before long, before longC. long before, long beforeD. before long, long before57. It’s __________late now ,but I still have ___________homework to do.A. too much, too muchB. much too, much tooC. too much, much tooD. much too, too much58. He has great ________ in collecting stamps.A. interestingB. interestedC. interestD. to interest59. We should make a contribution to _______the environment.A. improveB. improvingC. changeD. changing60. ---May I _______your motorbike, please?---Certainly. But you mustn’t ______ it to others.A. lend, lendB. borrow, lendC. borrow, borrowD. lend, borrow61. The captains of the two sides will _______the conversation later.A. go onB. carry onC. keep onD. go with62. Will you please make ________ for me? I must be together with my baby.A. a roomB. roomC. a spaceD. rooms63. The machine must be ________at once.A. put offB. put onC. put awayD. put right64. I wonder _______ the rain will stop soon.A. thatB. /C .if D. what65. I will help you if I _______.A. am ableB. will be ableC. can be able toD. am able to66. I think _______impossible to learn English well in a short time.A. thatB. thisC. itD. /67. No matter______, you should not give it up.A. what will happenB. what is happenedC. what happensD. happen what68. There is nothing _______with you. You needn’t be worried.A. the wrongB. matterC. the matterD. the problem69. Older people should __________politely.A. speak toB. be spokenC. be spoken toD. spoken to70. You should have a try _______you don’t know how to do it.A. thoughB. even thoughD. as though D. even71. When do you think________?A. will he be backB. he will be backC. will be he backD. he will back72. We usually see the sign “This Side Up”_______.A. in a roomB. on the roadC. on a boxD. on a glass73. I will _______ until your father comes back home. I have something important to talk with him.A. not waitB. leaveC. waitD. not to wait74. --- This boy is very clever.---_________.A. So is heB. So he isC. He is soD. He so is75. It’s not an easy thing to give up _________ at my age.A. smokeB. to smokeC. smokingD. to smoking76. Hainan Island is the place _____, whether it is summer or winter.A. to goB. to travelC. to beD. to visit to77. He is afraid _______the bridge because he is afraid _______ into the water.A. to cross, of fallingB. of crossing, to fallC. to cross, to fallD. of crossing, of falling78. He has lived and worked in China _______1996.A. inB. sinceC. forD. by79. It’s great fun _______ the yo-yo. Do you want a go?A. playingB. to playC. play withD. playing with80. I really don’t know what ________next. Can you help me?A. to doB. to do itC. doD. do it81. Someone has called the police, ________?A. has heB. hasn’t sheC. hasn’t theyD. haven’t they82. You’d better go to bed early on weekdays, _______ you?A. hadn’tB. didn’tC. weren’tD. needn’t83. My parents went to work, leaving me _______ the homework at home alone.A. to doB. didC. for doingD. doing84. Your pen writes_______. Where did you buy it?A. goodB. niceC. neatD. well85. She is _______ girl that I have ever known.A. goodB. betterC. the bestD. best86. We lived a hard life _______.A. in the 1960sB. in 1960sC. in the 1960D. in 1960s’87. English is spoken ______the world.A. all overB. byC. asD. for88. All the students _______when they heard the good news.A. were cheeredB. cheeredC. are cheeredD. cheering89. Modem can be used for connecting a computer ______ a phone line.A. withB. forC. toD. towards90. _______ the population by the year 2050?A. How many will beB. How much will beC. What will beD. What will91. Your ticket must _______ ahead of time.A. bookB. be bookedC. orderD. be ordered92. You must_______ try _______make mistakes any more.A. not, toB. /, not toC. /, don’tD. /, to93. Don’t _______the seas any more, or the living things in them will die.A. litterB. litter intoC. litter toD. litter in94. In the first half, we scored three_______.A. ballsB. footballsC. goalsD. games95. Last year the boss of a large factory _______two million yuan to our school.A. gave inB. gave upC. gave backD. gave away96. I saw him _______ your room when I walked past yesterday afternoon.A. entering intoB. to enterC. enterD. enter into97. I’d like something _______ English. Could you make some for me?A. realB. reallyC. trueD. truly98. The teacher said that light _______faster than sound.A. travelledB. is travellingC. travelsD. to travel99. To complain too often ______a good thing.A. it isn’tB. that isn’tC. isn’tD. isn’t it100. There are many _______ people working for the Great Green Wall.A. millionB. million ofC. millions ofD. millions。
九年级物理易错题120题以下是部分九年级物理易错题:1. 甲、乙两个物体质量之比是3:2,体积之比是2:3,它们的密度之比是多少?2. 铁块和铝块的质量之比是2:1,当它们吸收的热量之比是3:2时,升高的温度之比为5:6,则它们的比热容之比为多少?3. 用同一个酒精灯加热水和煤油,哪个更快?从这个实验中可以得出什么结论?4. 电压是使电路中形成电流的原因,电源是提供电压的装置.你的根据是什么?5. 下列现象中,属于光的折射现象的是()A.小孔成像B.教室黑板``反光''C.大树底下有许多光斑D.看到水池里的水比实际的浅6. 在一个标准大气压下,某同学将碎冰块放入易拉罐中并加入适量的盐,用筷子搅拌大约半分钟,测得易拉罐中冰和盐水混合物的温度低于0℃,同时发现易拉罐的底部外有白霜形成,该白霜的形成是____(填物态变化名称)现象,在形成白霜的过程中会____(选填``吸收''或``放出'')热量.7. 甲、乙两物体的质量之比为$3$:$2$,体积之比为$2$:$3$,它们的密度之比为____.8. 小明用薄膜、两个可以紧密配合的针筒,请你再添加一个测量工具____________,测量的物理量____________,就可以测出一个注射器的容积.9. 冬天室外的自来水管容易被冻裂,这是因为水结冰后 _______变小,_______变大,使水管受到的压强 _______。
A. 密度B. 比热容C. 质量D. 体积10. 小丽在海边游泳时发现:(1)在同样的烈日下沙滩上和海水比较,沙滩上热得烫脚,而海水却温度适中.这是为什么?(2)当她从水中起来感到冷时,为什么搓搓身体会有暖和的感觉?11. 某同学在探究``液体内部压强与液体深度的关系''的活动中得到的实验数据如下表:\begin{quote} \end{quote}序号液体深度/cm 压强计左右液面高度差/cm- - -1 水 52 水 103 水 154 水 205 水 256 水 307 盐水 58 盐水 109 盐水 1510 盐水 2011 盐水 2512 盐水 30。
判断训练1.自行车的座垫做得较宽大是为了减小对臀部的压力2.自行车的龙头实际上是一个省力杠杆3.骑自行车上坡前用力蹬车是为了增大惯性4.骑自行车匀速下坡时动能和机械能均不变5.自行车脚踏凹凸不平是通过增大接触面积来增大摩擦的6.自行车轮胎上制有花纹是通过改变接触面粗糙程度来减小摩擦的7.自行车刹车时用力捏刹车把是通过增大压力来增大摩擦的8.自行车在转动的部分加润滑油是通过变滑动为滚动来减小摩擦的9.物体抵抗运动状态变化的力是惯性10.运动物体如果没有受到力的作用,将继续以同一速度沿同一直线运动11.行星在圆周轨道上保持匀速运动的性质是惯性12.没有力作用,物体只能处于静止状态13.地面跑道结冰,飞机无法起飞,原因是摩擦力太小14.高原上的人呼吸困难,原因是离地面越高,气压越小,空气难压入肺里15.抽油烟机能将油烟排到室外,是因为流体流速大的位置压强大16.运输物质的汽车车轮上套有铁链,原因是为了增大对地面的压强17.用高压锅煮牛肉容易煮烂,是因为液体的沸点随气压增大而降低18.推汽车没有推动,推力小于汽车受到的摩擦力19.举重时,运动员举着杠铃原地不动,运动员对杠铃作了功20.举重时,运动员举着杠铃向前走了几步,运动员对杠铃做了功21.吸盘“吸”在竖直墙壁上,使吸盘不掉下来的力是大气压力22.物体在阻力相同的情况下,速度大的不容易停下来,所以速度大的物体惯性大23.推动地面上静止的物体比维持这个物体做匀速运动所需的力大,所以静止的物体惯性大24.在月球上举重比在地球上容易,所以同一个物体在月球上比在地球上惯性小25.如果物体不受力,一定处于静止状态26.做匀速直线运动的物体一定不受力的作用27.物体受到力的作用,运动状态一定会改变28.物体运动状态发生改变时,一定受到力的作用29.相互平衡的两个力,这两个力的三要素可能相同30.从树上自由落下的苹果,如果突然不受任何力的作用,将立即停止运动31.赛车在弯曲的跑道上飞速行驶,它的运动状态在不断地改变32.给正在运动的物体再施加一个力,物体一定比原来运动得更快33.运动的物体如果所受外力全部消失将会做匀速直线运动34.跳伞运动员在空中匀速下降时机械能逐渐减小35.双脚站在滑板车上的人对滑板车的压力和滑板车对人的支持力是一对平衡力36.在平直轨道上匀速行驶的火车车厢里,竖直向上跳起的人仍然落回原地(不计空气阻力)37.冰雪路面行车减速慢行,可以减小惯性38.用大小不变的力F竖直拉起静止在水平桌面上质量为m的钩码,F一定大于mg39.小明匀速爬杆时,手对杆的握力和小明受到的重力是一对平衡力40.马拉车向前运动时,车受到向后的摩擦力,马受到向前的摩擦力,说明力的作用是相互的中考物理总复习易错知识点108条(下列说法都是错误的,试找出错处并加以纠正)1.5L=5kg,200g=2N,1m3=10-4cm3.2.自行车正常行驶的速度约为30km/h.3.中学生的身体体积大约100dm3.4.体积一定时,密度与质量成反比.5.利用铅笔和橡皮泥不可以区别盐水和清水.6.物体越重,产生的压力越大.7.把物体压在竖直墙壁上,压力大小等于物重.8.秒表挂在弹簧测力计下方,使弹簧伸长的力是秒表受到的重力.9.推桌子时推不动,说明推力小于摩擦力.10.用弹簧测力计水平拉动物体时,拉力增大,摩擦力也增大.11.两个物体叠加在一起做匀速直线运动,上面物体也受到摩擦力.12.两个物体叠加在一起,下面物体受到的支持力等于自重.13.在接触面粗糙程度一定时,物体的质量越大,摩擦力越大.14.降落伞减速下落时,受到重力大于阻力.15.运动物体只要速度为零,就处于平衡状态,受到平衡力.16.蹦极时,只要橡皮绳开始有伸长,蹦极的人就开始减速.17.当你坐在行驶的汽车里,感到座椅的靠背向前推你,说明汽车正在减速.18.弹簧测力计先竖直调零,再测水平拉力时,测量结果会偏大.19.皮带传动时,皮带与转轮之间的摩擦是有害的.20.教室的门没被风吹开是因为风吹门的力小于摩擦力21.将一个物体用水平力压在竖直墙壁上静止,压力增大为2倍,摩擦力也增大为2倍.22.大气压随高度增加而增大.23.护士用注射器进行肌肉注射时是利用大气压.24.水坝的形状上窄下宽是通过增大受力面积来减小水对大坝的压强.25.飞机起飞时,是利用流体压强和流速的关系来获得推力的.26.在同一个量筒中先后装有水和酒精,则当水和酒精混合后,液体对底部的压强将变小.27.利用量筒、小酒杯、可以测量石块在水中受到的压强.28.饮料瓶壁扎有小孔,装水后水喷出,盖紧瓶盖后,瓶内上方气压不变.29.飞机飞离航母后,航母始终漂浮,浮力不变.30.漂浮在水面上的木块,若将露出水面部分切去,则剩余部分将悬浮.31.容器中装有多少牛的水,则水对容器底的压力大小就是几牛,压强等于压力除以容器底面积.32.将重为G的物体吊在测力计下浸没在水中,测力计示数变为G/5,则物体密度0.8×103kg/m3.33.一只鸡蛋漂浮在盐水中,现往盐水中缓缓加水,鸡蛋受到的浮力将变小.34.潜水艇在海水中潜行时受到的浮力等于在江水中潜行时受到的浮力.35.潜水艇在海水中潜行时受到的重力等于在江水中潜行时受到的重力.36.轮船从东海驶入长江,受到的浮力将变小.37.一个木块密度为0.5×103kg/m3,漂浮在水面时露出水面部分和浸入水面以下部分之比是1:2.38.一个冰块漂浮在水面上时,浸在水面以下的部分是总体积的1/9.39.质量为40g,体积为60cm3的小球轻轻放入盛满水的烧杯中,溢出水的质量60g.40.将质量为200g的小球轻轻放入盛满水的容器中,溢出160g的水,静止时小球漂浮在水面.41.塑料袋装有水,用测力计吊着渐渐浸入水中,袋中水面可能低于外面水面.42.塑料袋装有水,用测力计吊着渐渐浸入水中,袋中水面与外面相平时,测力计示数不为零.43.划船、赛艇等所用的桨是费距离的杠杆.44.自行车的刹车把手实际上是一个省距离(费力)的杠杆.45.指甲剪是由三个杠杆组成的,且三个都是省力杠杆.46.人的前臂是一个省力杠杆,当端起茶杯时,肌肉收缩产生的拉力小于茶杯重.47.滑轮组动滑轮重一定,机械效率与提起的物重成正比.48.盘山公路的优点在于提高机械效率.49.两物体受到不同拉力做匀速直线运动,则拉力大的功率一定大.50.使用相同滑轮组成的滑轮组提升相同重物至相同高度,拉力大的做功一定多.51.人造卫星绕地球运转时,机械能不断减小.52.推出去的铅球在空中飞行,人对球做了功.53.快递员抱着邮件乘电梯上楼人没有对邮件做功.54.比较同学们的爬楼功率时必须测出各自的体重、爬楼高度和爬楼时间.55.同一物体在斜面上拉动时受到摩擦力比水平面上大,需要的拉力更小,因为斜面可以省力.56.物体被向上抛出时,在最高点处动能一定为零.57.探究动能大小因素时,小球从越高处滚下,木块运动越远,说明质量一定时,高度越大,动能越大.58.太阳光是沿直线传到地球的.59.验钞机利用红外线使荧光物质发光.60.植物的光合作用不能说明光具有能量.61.拍集体照时,要使边上的同学也能被拍到,应该使照相机远离同学,并使镜头适当前伸.62.窗外射进来的太阳光光柱从地板折向天花板是折射现象.63.焦距10厘米的凸透镜,物体置于焦点外12厘米处,成倒立放大实像.用焦距为l0cm的凸透镜观察到正立放大的像,则物距大于10cm小于20cm.64.做视力的矫正实验时,当给凸透镜“戴上”近视眼镜后,光屏上成像清晰,要使拿走眼镜后像仍清晰,应该将光屏远离凸透镜.65.做冰熔化实验时,不用酒精灯加热是不可行的.66.冬天“雾气”可能出现在车窗外表面.67.干冰升华形成的“白雾”是由二氧化碳气体液化形成的小液滴.68.热传递时内能多的物体把温度传给内能少的物体,传递温度的多少叫热量.69.物体的内能增加,一定要吸收热量.70.月球上可以用水来冷却或保温.71.热机工作——机械能转化为内能.72.相同的加热器加热不同物体,吸热多少与物体质量、比热容、升高温度有关.73.做空气压缩引火仪实验时,放入棉花的作用与用两只相同蜡烛研究平面镜成像规律相同.74.通过摩擦的方式可以产生电荷.75.电荷的基本性质是同种电荷相互排斥、异种电荷相互吸引.76.并联电路如果断开(闭合)一条支路,总电流不变.77.并联电路如果断开一条支路,另一条支路电流变大.78.并联电路中,一个用电器被短路,其他用电器仍工作.79.电动机线圈电阻等于电压除以电流.80.串联电路中,不同电阻两端的电压与电阻成反比.81.在探究电流与电阻关系时,当换接了更大阻值的电阻后,滑动变阻器接入电阻应调小.82.铜导线一定比相同长度的铁导线电阻小.83.研究串、并联电路的电阻时,引入“总电阻”概念,是运用的归纳法.84.把n个相同的电阻串联得到的总电阻是n个相同电阻并联时总电阻的1/n2.85.二极管、三极管等材料是由导体制成的.86.超导材料电阻为零,不适合做导线.87.电功的单位是瓦特.88.灯丝电阻不变时,电压变为一半,电功率也变为一半.89.测量小灯泡功率的电路也可以用来探究电流与电压的关系.90.在分析动态电路的“变化范围”问题时只需要考虑电表的量程.91.空气开关的主要作用不同于保险丝.92.家庭照明电路中,亮度大的灯泡电阻大.93.家庭电路中,同时工作的用电器越多,总电阻越大.94.串联电路中有一个灯泡不亮一定是这个灯泡发生了短路.95.测电笔测得零线也使氖管发光,说明一定出现了短路.96.家庭电路中空气开关跳闸的原因可能是电灯开关短路.97.相同功率的白炽灯和节能灯使用相同的时间白炽灯耗电多.98.磁场是基本性质是能够吸引铁、钴、镍等磁性材料.99.CD、DVD光盘是用磁性材料制成的.100.导体周围存在磁场.101.通电螺线管内部磁感线也是从N极出发回到S极.102.电动机的原理是电流的磁效应.103.发电机的原理是磁场对电流作用.104.手机通话是直接传输声信号.105.核电站是利用核聚变来发电的.106.太阳的能量是通过核裂变释放出来的.107.X射线是一种超声波.108.电磁波波速一定时,频率越高波长越长.109.。
一、初中物理功和机械能问题1.如图所示,在一个罐子的盖和底各开两个小洞。
将小铁块用细绳绑在橡皮筋的中部穿人罐中,橡皮筋两端穿过小洞用竹签固定。
做好后将它从不太陡的斜面滚到水平面。
下列说法正确的是()A.罐子从斜面滚下,重力势能只转化为动能B.罐子从斜面滚下的过程中,只有动能和弹性势能的相互转化C.因为能量之间可以相互转化,所以罐子滚下后可能再次滚上斜面D.如果水平面是光滑的,则罐子会一直滚动下去【答案】C【解析】【分析】【详解】A.罐子从斜面滚下,要克服摩擦力做功而使重力势能转化为内能,故A错误;B.罐子从斜面滚下的过程中,重力势能转化为动能和内能,故B错误;C.罐子从不太陡的斜面上滚下,罐子的高度减小,速度先增大后减小,橡皮筋的弹性形变逐渐增大,则罐子的重力势能减小,动能先增大后减小,橡皮筋的弹性势能增大,即该过程中罐子的重力势能会转化为动能和橡皮筋的弹性势能;发生形变的橡皮筋由于要恢复原状,故罐子可能再次滚上斜面,故C正确;D.罐子在滚动的过程中,由于和斜面之间存在摩擦,机械能会转化为内能,所以整个罐子的机械能不守恒,机械能会逐渐变小,最终罐子会停止运动,故D错误。
故选C。
2.跳绳是大家喜爱的体育运动之一,小明的质量为 50 kg,每次跳起高度约为 6 cm(人整体上升,如图所示),一分钟跳 100 次,下列说法正确的是()A.向上起跳过程中小明的动能持续增大B.下落过程中小明的重力势能保持不变C.小明跳一次克服重力做功约 3J D.小明在这一分钟内跳绳的功率约为 50W 【答案】D【解析】【详解】A. 向上起跳过程中,质量不变,速度减小,小明的动能减小,故A错误;B. 下落过程中小明的高度减小,质量不变,重力势能减小,故B错误;C. 小明的重力为:G=mg=50kg×10N/kg=500N,小明跳一次克服重力做功:W=Gh=500N×0.06m=30J,故C错误;D. 小明在这一分钟内跳绳的功率:P=Wt总=30J10060s=50W,故D正确。
历年中考数学试题易错题知识点考察题汇总学校:__________ 考号:__________注意事项:1.答题前填写好自己的姓名、班级、考号等信息一、选择题1.已知等腰三角形一腰上的高线等于底边的一半,则这个等腰三角形的顶角等于( )A .120°B .90°C . 60°D .30° 2.下列函数中,自变量x 的取值范围是x ≥2的是( )A .y =B .y= C .y =D .y =3.21x 8÷7x 4等于( )A .3x 2B .3x 6C .3x 4D .3x 4.若(x -1)(x+3)=x 2+mx+n ,那么m,n 的值分别是( )A .m=1,n=3B .m=4,n=5C .m=2,n=-3D .m=-2 ,n=35. 一个三角形的三个内角中,至少有( )A . 一个锐角B . 两个锐角C . 一个钝角D .一个直角6.若(x-y )2+N=(x+y )2,则N 为( )A .2y 2B . -2y 2C .2xyD .4xy 7.关于x 的方程4332=-+x a ax 的解为x=1,则a=( ) A .1 B .3 C .-1 D .-38.如图,△ABC 与△A ′B ′C ′关于直线l 对称,则∠B 的度数为 ( )A .30°B .50° B .90° D .100°9. 某风景点的周长约为 3578 m ,若按比例尺 1:2000缩小后,其周长大约相当于( )A .一个篮球场的周长B .一张乒乓球台台面的周长C.《中国日报》的一个版面的周长D.《数学》课本封面的周长10.计算3223-÷所得的结果是()[()]()x xB.-1 B.10x-C.0 D.12x-11.如图,已知∠C=∠D,AC=AE,要得到△ABC≌△AED还应给出的条件中错误的是()A.∠BAD=∠EAC B.∠B=∠E C.ED=BC AB=AE12.下列说法错误的是()A.三个角都相等的三角形是等边三角形B.有两个角是60°的三角形是等边三角形C.有一个角是60°的等腰三角形是等边三角形D.有两个角相等的等腰三角形是等边三角形13.任何一个三角形的三个内角中至少有()A.一个角大于60°B.两个锐角C.一个钝角D.一个直角14.如图AB=AC,DE⊥AB,DF⊥AC,AD⊥BC,则图中的全等三角形有()A.1对B.2对C.3对D.4对15.等腰直角三角形两直角边上的高所的角是()A.锐角B.直角C.钝角D.锐角或钝角16.一个物体由多个完全相同的小立方体组成,它的三视图如图所示,那么组成这个物体的小立方体的个数为()A.2 B.3 C.4 D.517.如图是由若干个同样大小的立方体搭成的几何体的俯视图,小正方形中的数字表示的是该位置上立方体的个数,则这个几何体的主视图是()。
初三数学易错题代数第一章∶一元二次方程1、解方程1112-=+-x m x x 的过程中若会产生增根,则m=____2.关于x 的方程m 2x 2+(2m +1)x +1=0有两个不相等的根,求m 的取值范围__ 3,若关于x 的方程ax 2-2x +1=0有实根,那a 范围____4,已知方程3x 2-4x -2=0,则x 1-x 2=___,大根减小根为____5,以251+-和251--的一元二次方程是____6,若关于x 的方程(a+3)x 2-(a 2-a -6)x +a=0的两根互为相反数,则a=___7,已知a,b 为不相等的实数,且a 2-3a +1=0,b 2-3b+1=0则a b +ba =___ 8,方程ax 2+c=0(a ≠0)a,c 异号,则方程根为_____9,若方程3x 2+1=mx 的二次项为3x 2,则一次项系数为_____23,分解因式4x 2+8x +1=_____24,若方程2x 2+3x -5=0的两根为x 1,x 2则x 12+x 22=_____25,方程组有两组相同的实数解,则k=___方程组的解为___ 43,若x 是锐角,cosA 是方程2x 2-5x +2=0的一个根,则∠A=___1、已知:Rt △ABC 中,∠C=900,斜边c 长为5,两条直角边a,b 的长分别是x 2-(2m-1)x+4(m-1)=0的两根,则m 的值等于()A.–1B.4C.-4或1D.–1或4.2、已知关于x 的方程012)32(2=+--x m x m 有两个不相等的实数根,则m 的范围是:()A .m<3B.233≠<m m 且 C.0,233≠≠<m m m 且 D.2330≠<≤m m 且3、已知方程①01222=+-x x ,②041x =+-,③1122=++++x x x x , ④0x 12x =---,⑤01)12(2=-+++k x k x 其中一定有...实数解的方程有 A 、1个B 、2个C 、3个D 、4个5、已知,012=-+m m 那么代数式2001223-+m m 的值是()(A)2000(B)-2000(C)2001(D)-20016,下面解答正确的是()A ,分式的值是零,x=-2或x=1B,实数范围内分解因式2x 2+x -2=)4171)(4171(+-----x x C,x=-1是无理方程22-2x +7x =-x 的根D,代数式x 2+2x -1通过配方法知x=-1时,它有最小值是-27,关于x 的方程x 2-mx +n=0有一正一负的两实根,且负根绝对值较大,则()A , n >0,m <0B,n>0,m >0,C,n<0m>0D,n <0m<08,若x =-b+b 2+4ac2a 则有()A ,ax 2+bx+c=0B,ax 2+bx-c=0C,ax 2-bx+c=0D,ax 2-bx-c=09、在Rt △ABC 中,∠C=900,a 、b 、c 分别是∠A 、∠B 、∠C 的对边,a 、b 是关于x 的方程0772=++-c x x 的两根,那么AB 边上的中线长是()(A )23(B )25(C )5(D )2 20,已知关于x 的方程x 2+px +q=0的两根为x 1=-3x 2=4,则二次三项式x 2-px +q=()A.(x +3)(x -4)B,(x -3)(x +4)C,(x +3)(x +4)D,(x -3)(x -4) 三,解答题1,甲乙二人合作一项工程,4天可完成,若先有甲单独做3天,剩下的由乙独做,则以所用的时间等于甲单独完成这项工程的时间,求甲乙二人单独完成此项工程各需几天? 2,解方程mnx 2-(m 2+n 2)x +mn=0(mn ≠0)3,在⊿ABC 中,∠A ∠B ∠C 的对边分别为a,b,c 且a,b 是关于x 的方程∶x 2-(c +4)x+4c +8=0的两根,若25asinA=9c,求⊿ABC 的面积第二章∶函数第一节∶平面直角坐标系22,平面直角坐标系中,点A (1-2a,a-2)位于第三象限且a 为整数,则点A 的坐标是_____10、已知点()2,1+-a a M 在第二象限,则a 的取值范围是()(A )2->a (B )12<<-a (C )2-<a (D )1>a14、若点M (x -1,1-y )在第一象限,则点N (1-x ,y -1)关于x 轴的对称点在()A 、第一象限B 、第二象限C 、第三象限D 、第四象限第二节∶函数 11、函数321+=x y 中,自变量x 的取值范围是____12、函数x x y -+=0的自变量的取值范围是_____1,锐角三角形ABC 内接于⊙O ,∠B=2∠C ,∠C 所对圆弧的度数为n ,则n 的取值范围是()A,0°<n <45°B,0°<n <90°C,30°<n <45°D,60°<n <90°第三节∶一次函数15,当___时,函数y=(m +3)x 2m +3+4x -5(x ≠0)是一个一次函数。
最新初中英语中考试题分析易错题易错点归纳整理1. Look! Here the bus comes.(×)Look! Here comes the bus.(√)[析]在以here, there引起的陈述句中,若句子的主语是名词,要用倒装语序,即用“Here /There+动词+名词”结构;但主语若是代词时,则不用倒装语序, 即用“Here/There +代词+动词”结构。
2. I do well in playing football, _______. (我妹妹也行。
)A. so my sister does(×)B. so does my sister(√)Li Lei is really a football fan. --- _______. (确实这样.)A. So is he(×)B. So he is(√)[析]“so+be动词/助动词+主语”的倒装结构表示前面所述情况也适用于后者,意为“……也是这样”;“so+主语+be动词/助动词”的陈述结构表示对前述情况的肯定,意为“……确实如此”。
3.重庆比中国的其他城市都大。
Chongqing is larger than any city in China. (×)Chongqing is larger than any other city in China. (√)[析]“any city in China”包括了重庆这座城市, 同一事物自己与自己不能做比较,只有在city 前加上other才能表示重庆和中国的其它城市比较大小。
The weather in Guangzhou is warmer than Beijing. (×)The weather in Guangzhou is warmer than that in Beijing . (√)[析]表示比较时,句子中的两个比较对象必须一致,不同的比较对象不能做比较。
上海交大兰州东方昂立国际英语《2012中考奖学金保分尖子班》中考易错点1. _________ we deal wit h our problems, we can easily become unhappy.A. UnlessB. UntilC. ThoughD. Whether2. The teacher speaks very loudly ________ all the students can hear her. A. so that B. because C. since D. when3. ----- Are you scared of the flight? ----- No, just a little _________. A. angry B. serious C. anxious D. calm4. ----- Do you know the man under the tree? -- Sorry, I don‟t know ______. A. how is he B. what is he C. who he is D. where he is5. ----- I don‟t think your uncle really likes drama series. ----- No, _________ he still watches the programme.A. andB. soC. orD. but6. World Expo 2010 S hanghai China ________ people from all over the world to the theme “Better City, Better life”.A. attendsB. attractsC. allowsD. advises7. No one can feel that time________, but everyone can feel that time has passed.A. is passingB. has passedC. had passedD. was passing8. ----- Your e-mail address again? I _______ quite catch it. ----- Lhlaughter @ .A. don‟tB. can‟tC. won‟tD. didn‟t9. Who left the windows ________? A. open B. opening C. opened D. opens10. ----Does Peter like carrots? ----He ___________never eats vegetables. A. hardly B. always C. nearly D. almost11. In Sydney Olympic Games the Chinese team got 28 gold medals, 16.5 __________ were won by women.A. on whichB. of whichC. thatD. in that12. Is this book ________ you borrowed from the library? A. the one B. that C. which D. who13. He made ________ great progress _______ we were all very happy. A. as, that B. so, as C. such, that D. so, that14. ________ wonderful music it is! I like it very much. A. What B. How a C. What a D. How15. All the other girls have gone, ________ herself in the wind. A. leave B. leaving C. left D. to leave16. –--David has made great progress recently. –-- ________ and __________.A. So he has; so have youB. So he has; so you haveC. So has he; so you haveD. So has he; so have you17. This is his first visit _______ China. He said great changes ________ in China.A. to; had taken placeB. on; had been taken placeC. to; had happenedD. on; had been happened18. If I ______ you, I_______ go to the university rather than work in a factory.A. was; couldB. were; wouldC. am; willD. are; can19. ---- Would you mind my sitting here? ----Sorry, you ______. Mr. Wang will sit here.A. won‟t B. can‟t C. mustn‟t D. need not20. Read the notice carefully before ________ the hall. A. enter B. entering C. entered D. will enter21. There are _______ trees that have been planted there. In a few years, it will be a forest.A. thousandB. a thousands ofC. thousand ofD. thousands of22. The next morning, he felt even ____. He had to ____ to hospital again. A. bad; send B. worse; be sent C. bad; be sent D. worse; send23. You______ about your lessons. I‟ll help you. A. needn‟t to worry B. needn‟t worry C. don‟t need worry D. don‟t need worryi ng24. It‟s too noisy in the hall. He can‟t make himself ________. A. hear B. heard C. be heard D. to hear25. This physics problem is too difficult. Can you show me _______, Wang Lin ?A. what to work it outB. what to work out itC. how to work it outD. how to work out it26. What I can do _______ wait and do nothing. That‟s terrible. A. is to B. is that C. are D. are to27. Every boy and every girl _______ read and write in school. A. teaches to B. is taught to C. teach to D. are taught to28. – Susan, why are you still here? They are all ready to start. -- I‟m sorry, but I _______ when to meet.A. didn‟t tellB. didn‟t be toldC. haven‟t toldD. wasn‟t told29. Afternoon tea is ______ in the dining room from 3 to 5 p.m. every day. A. served B. burned C. cooked D. eaten30. The little boy ______ his seat to the old lady on the crowded bus. A. offered B. brought C. lent D. looked31.“Mr. Johnson asked me to remind you of the m eeting this afternoon. Don‟t forget it!”“OK. I_______.”A. won‟tB. don‟tC. willD. do32. The shopkeeper said they______ the shoes ________.A. have sold out; in my sizeB. sold out; of my sizeC. had sold out; for my sizeD. had sold out; in my size33. Some of my classmates ______cartoons______ documentaries. A. prefer; to B. would rather; than C. like; better D. like; less34. Look! The farmers are still working ______the heavy rain. A. in B. under C. on D. below35. Grandpa is ill in bed. A doctor must be sent______. A. away B. off C. in D. for36. All of us went to the concert _____Sally. She had to look after her sister at home. A. beside B. besides C. except D. with37. ----Is that bridge made ________wood? ----Yes,it is. A. in B. of C. from D. with38. Thanks_________ the taxi driver,the old man was sent to hospital in time. A. to B. for C. about D. on39. ----How do you learn English? ---- ______ listening to the tape and seeing English films. A. On B. In C. By D. Over40. ______ the money she got from her parents,she bought many books ________ medicine.A. For; inB. By; onC. With; inD. With; on41. ----How do you go to school? ----_____________. A. On foot B. By my bike C. In bus D. On feet42. Nobody knew it ______________me. A. but B. beside C. besides D. without43. --- Where is the hospital? ---It‟s_______ from the park. A. cross B. across C. crossing D. crossed44.The 41st World Expo(世博会) was held________ Shanghai___________ May 1st,2010. A, at; in B. at; on C. in; in D. in; on45. She lived in the mountain village_______ the years 1940~1950. A. between B. during C. in D. since46. _________Children's Day, all the children are very happy. A. To B. In C. On D. At47. Miss Wang will come to Beijing ________two days. A. after B. in C. on D. before48.The opening of the 29th Beijing Olympic Games was held_____ the night of August 8th, 2008.A. inB. duringC. atD. on49. Shenzhou VII was sent up into space_______ September 25th, 2008. A. in B. at C. on D. for50. ---Did you see Tom at the party? ---No, he _______ by the time I got there. A. left B. was leaving C. had left D. has left51. I first met Lisa three years ago when we ______at a radio station together.A. have workedB. had been workingC. were workingD. had worked52. ---Why hasn't Mr. Li come to work today? ---________he has gone to Beijing to have a meeting.A. IfB. UntilC. ThoughD. Because53. Some passengers were walking through one of the big halls at Paris‟s Charles De Gaulle Airport ______the whole roof fell down.A. whileB. as soon asC. whenD. after54. _______Tom _______Mary speaks good Chinese, so they can communicate with these Chinese students very well.A. Neither; norB. Not only; but alsoC. Both; andD. Either; or55. We waited ages for a taxi. We gave up________ and walked home. A. at the beginning B. in the end C. at first D. at least56. The engineer will return from Macao______ a few days. A. since B. in C. on D. after57. ---Your coat looks nice. Is it_______ cotton? ---Yes,it‟s ______ Shanghai.A. made of; made byB. made of; made inC. made for; made inD. made from; made by58. ---Can you guess who will be the first to cross the finish line? ---Sandy. Jane didn't run so fast _________she did last time.A. thanB. soC. thatD. as59. You can‟t catch up with a car _________ how fast you run. A. however B. no matter C. although D. whatever60. _______ they are brothers, they don‟t look like each other at all. A. Because B. Though C. When D. As61. ---John, shall we go swimming _____ you finish your homework? ---Good idea. A. until B. though C. before D. after62. ---Is the answer to the physics problem right ______ wrong? ---Please let me think it over______ I give you the answer.A. and; asB. or; beforeC. and; afterD. or; while63. Linda was just going out shopping_________ the telephone rang. A. while B. when C. after D. because64. The man in black is_________ a policeman _________a thief. Stop him!A. not only; but alsoB. either; orC. neither; norD. not; but65. I did not finish my homework,________ my teacher was angry with me.A. orB. /C. soD. but66. He has never heard ________seen such a thing before. A. nor B. and C. or D. since67. Physics is not easy, ____ I like it very much. A. but B. or C. since D. because68. Lucy _________ Lily haven't seen this film before. A. but B. or C. so D. and69. The child is lively _________healthy. A. or B. but C. so D. as well as70. It was very late. Rose washed her face _____ went to bed. A. or B. and C. so D. but71.“Good morning, Mr. Brown. Would you please tell me the result of the exam?” “OK .You did quite well. You‟ve made _____ mistakes.”A. fewB. a few C .little D. a little72. The pears in my basket are smaller than_____ in Jim‟s. A. it B. that C. ones D. those73. I'm sure I can improve ________ in spoken English in two years' time. A. myself B. ourselves C. himself D. themselves74. ---Oh,these presents are so nice. ---The CD is from Betty and the books are from ________.A. I and HelenB. Helen and meC. Helen's and mineD. Helen and I75. Tom‟s car is more beautiful than______________.A. his brother‟s and sisterB. hi s brother and sisterC. his brothers and sistersD. his brother‟s and sister‟s76. This is________ bedroom. The twin sisters like it very much.A. Anne and JaneB. Anne‟s and Jane‟sC. Anne‟s and JaneD. Anne and Jane‟s77. I‟m twelve. Rose is ten. So I‟m__________ her.A. as old asB. not older thanC. two years older thanD. two years younger than78. Can you give me a______ explanation? A. further B. farther C. furthest D. farthest79. ---Why didn‟t you like the book? ---It was _______ book that I had ever read.A. the most interestingB. the least interestingC. more interestingD. less interesting80. ---Tom is good at writing. How about Linda? ---Linda is ________, I think. She often wins the first prize in the writing competition.A. well B .worse C. good D. better81. Bill is ________ of the two English boys. I think you can find him easily. A. taller B. tallest C. the taller D. the tallest82. Which do you think tastes__________,the chicken or the fish? A. good B. better C. best D. well83. Beijing is becoming _________ and______________.A. more beautiful; moreB. beautiful; beautifulC. more; more beautifulD. more beautiful; more beautiful84. The experiment was________ than we had expected.A. more easierB. much more easierC. a little easierD. far more easier85. These children are________ this year than they were last year. A. more tall B. more taller C. very taller D. much taller86. ---I think physics is________ maths. ---I agree with you. They are both very difficult.A. as easy asB. as difficult asC. more difficult thanD. easier than87. I can‟t go to the cinema with you because I have_______ to do today.A. anything importantB. something importantC. important nothingD. important something88. What he said made us very _________ ? A. happily B. surprised C. frightening D. angrily89. I think each student should have an English-Chinese dictionary. It‟s very______ to them.A. hopefulB. hopelessC. helpfulD. helpless90. ---You‟d better not litter things about.---I won‟t. A good environment is very________ to us all.A. cleanB. freshC. importantD. modern91. I don‟t like the color of the skirt because it is too______. A. expensive B. small C. old D. dark92. Don‟t eat this cake. It smells _________. A. delicious B. badly C. good D. terrible93. ---You look ver y _________.What‟s wrong? ---My best friend John hurt his leg this morning.A. fineB. surprisedC. worriedD. happy94. ---Why are you so_______? ---Because Chinese fencing athlete(击剑运动员) Zhong Man won the gold medal at the 29th Beijing Olympic Games. A. surprised B. excited C. surprising D. exciting95. Many girls like______ skirts in spring. A. wearing B. wear C. putting on D. put on96.“Don‟t forget to turn off the lights when you leave.”“No,I_________ .” A. mustn‟t B. won‟t C. don‟t D. can‟t97. All the students like Mr. Zhang very much, because he often makes them ______ . A. laughed B. laugh C. laughing D. to laugh98. ---You look very tired this morning. What did you do yesterday afternoon? ---I did______ Christmas shopping.A. a lot ofB. a few ofC. a number ofD. a piece of99.“I think teachers are the most hard-working people. Do you _______me?”“Yes,I do.”A. go on withB. catch up withC. agree withD. stay away from100. ---Did you _______ what the teacher said? ---Not really. He spoke a little too fast.A. preferB. listen toC. catchD. learn from101. The mother ______ the child quickly and took him to hospital.A. dressesB. dressedC. had onD. has on102. She often eats______ junk food, so she is _____ fat.A. too much; much tooB. too much; too muchC. much too; much tooD. much too; too much103. ---Have you________ spoken to a foreigner? ---No,__________.A. already; neverB. ever; neverC. yet; alreadyD. ever; ever104. ---What was the weather like yesterday? ---It was terrible. It rained so________ that people could ______ go out.A. hardly; hardB. hardly; hardlyC. hard; hardlyD. hard; hard105. What a ______ cough! You seem ______ ill.A. terrible; terriblyB. terribly; terribleC. terrible; terriblelyD. terribly; terribly106. --- Do you think the fish tastes_______? ---She cooked it_______,I think.A. good; goodB. well; goodC. well; wellD. good; well107. She was very happy. She ran ________ of all the runners. A. fastest B. most quickly C. slowest D. quickly108. ---Did you plant trees yesterday? ---Certainly. And I planted ________ than anyone else.A. many moreB. much moreC. the mostD. the most of all109. While we were watching the play,I ______ noticed a man with a funny look.A. usuallyB. suddenlyC. quicklyD. carefully110. She played the piano _______ than we had thought. A. successful B. successfully C. more successful D. more successfully 111. Betty is shorter than her brother, but she jumps _______ he does. A. as good as B. as best as C. as high as D. as higher as 112. He ran _________to catch up with me. A. too fast B. so fast C. fast enough D. enough fast113. I stay with my grandparents for ________ every week. A. sometime B. sometimes C. some times D. some time114. We believe that World Expo 2010 Shanghai will be held_____.A. successfulB. successfullyC. more successfulD. more successfully115. What an easy question! _______ a child can answer it. A. Still B. Yet C. Even D. Ever116. More and more people prefer to go _____ for their long summer holiday.A. somewhere coldB. cold somewhereC. somewhere coolD. cool somewhere117. A lot of people come to visit the Great Wall because it is_____ wall.A .very a great B. quite a great C. so a great D. a great rather118. We know that people in different countries behave ______ when they have dinner.A. politelyB. quietlyC. healthilyD. differently119. Do you know the boy ________ father owns a big company? A. who B. which C. that D. whose120. ---What did Miss Chen tell you just now? ---She told me that nothing ____difficult if you ____your heart into it.A. was; putB. would be; will putC. is; putD. will be; will put121. ---Could you tell me ________? ---About three days.A. when will the sports meeting startB. where the sports meeting will be heldC. how long the sports meeting will lastD. if the sports meeting will begin122. Please ask our grandma _________ .A. what is wrong with herB. where shall we liveC. why she did that forD. what did she have for breakfast123. Mike wanted to know _________ . A. whose MP5 it is B. how much did the MP5 cost C. if the MP5 was made in Japan D. where his father will buy him the MP5124. Miss Gao hasn‟t decided _______ this summer. A. whether she‟ll go on a trip B. when will she go on a trip C. if she goes on a trip D. when does she go on a trip125. ---What did Lily ask you? ---She asked me _____ I was going to speak at the meeting and I said “Yes”.A. whyB. whenC. howD. whether126. I sat in the front of the hall ______ I can hear clearly. A. so that B. such that C. since D. because127. I often fall asleep ______ I‟m listening to l ight music. A. after B. before C. while D. as soon as128. You‟ll miss the beginning of the concert _____ you leave immediately. A. until B. if C. or D. unless129. --- Why didn‟t you go surfing yesterday?---_______ I had to look after my sister at home.A. AsB. ForC. BecauseD. Since130. “The skirt still looks pretty on you ______ it is out of style.” “Thanks.” A. though B. but C. if D. since131. “If you _______ late again, you‟11 lose the job.”“Sorry, sir.” A. be B. are C. were D. will be132. Could you tell me something more about Hong Kong? I‟m _____ going there for a holiday soon.A. looking upB. thinking aboutC. trying outD. finding out133. Could you tell me which _______ best among the books on sale? A. is sold B. sells C. are written D. writes134. You‟d better ________ football in the street. A. not play B. playing C. not to play D. to play135. Good morning, class! Today we‟ll learn a new lesson. Please open your books at _______ .A. page seventeenB. seventeen pageC. page seventeenthD. seventeenth page136. ---Excuse me. Where is the Hope Cinema? ---Go up this road to the end. Go _________ the bridge and you‟ll find it.A. crossB. crossingC. acrossD. through137. ---You look rather tired. _________ stop to take a rest? ---All right. But I‟ll have to work for a few more minutes.A. Why notB. Do youC. What aboutD. How about138. The film will be gin at four o‟clock. Shall we meet at _______ at the gate?A. forty past threeB. half past fourC. fifty to fourD. four to four139. They ______ know the answer,but I‟m not sure. A. maybe B. may be C. can't D. must140. --- Did you see who the driver was? --- No,the car ran so fast ______ I couldn‟t get a good look at his face.A. thatB. whichC. asD. after141. He doesn‟t tell me when he _______. I‟ll phone you as soon as he ________.A. will come; comesB. will come; will comeC. comes; will comeD. comes; comes142. If you work hard, you‟ll get good _____ A. grades B. notes C. lessons D. answers143. Your homework is well done. Just ______ some small mistakes in it. A. create B. connect C. correct D. control144. ---_________ you turn down your radio,please? --- Yes,I can. A. May B. Need C. Must D. Can145. Susan will not arrive at the airport on time _____ she hurries up. A. once B. if C. when D. unless146. ---______ have you worked in Shenzhen? --- Since last year. A. How far B. How long C. How often D. How soon 147. ________ is the population of your city? A. How large B. How many C. How much D. How small148. ---_______ will he be back? ---In an hour. A. What time B. How often C. How soon D. How long149. ---_______ do you guess will be the first in the English competition? ---Of course Han Mei.A. WhoseB. WhomC. WhichD. Who150. “Your dress looks nice. _________ did you buy it?” “In Cool Clothes Shop.” A .Who B. When C. Why D. Where 151. If you don‟t work hard, you‟ll _____ the maths test. A. pass B. win C. fail D. lose152. ---Where is my pen? Have you seen _______ ? ---Oh, sorry. I have taken ________ by mistake.A. it; yoursB. them; hisC. it; mineD. them; hers153. I borrowed a book from the library, and I will return the book two weeks later.A. go backB. come backC. be backD. give back154. Don‟t worry, sir. I‟m sure I can run _______ to catch up with them.A. slowly enoughB. enough slowlyC. fast enoughD. enough fast155. --- You don‟t look well. What‟s wrong with you, Wang Ming?--- Last night I watched the football match and didn‟t go to bed ______ 12 o‟clock. A. when B. before C. as D. while 156. Last night, there was a food accident. The _____ were ill, but no ______were lost.A. child; livesB. children; lifeC. children; livesD. child; life157. --- Will you please write a short passage on H1N1 Flu and _____ it to me this evening?--- What about tomorrow? My computer doesn‟t work okay now. A. give B. e-mail C. take D. bring158. “Hi, Tom! Can you tell me when ______ for London?” “Yes,tomorrow afternoon."A. leavingB. leavesC. to leaveD. are you leaving159. --- It‟s very hot, but quite wet today.--- ________ . A. So is it B. It is so C. So it is D. So it does 160. --- In recent years,more and more Americans like traveling during holidays. --- ________ .A. So do we ChineseB. So will we ChineseC. So we Chinese doD. So we Chinese will161. --- I hear Yang Yan made an English speech at the graduation ceremony yesterday. --- ________, and _______.A. So she did; so did IB. So did she; so I didC. So she was; so I wasD. So was she; so I was162. “My parents never stop going on about how I should study hard.” " _________ ."A.So my parents doB. Nor my parents doC. Nor do my parentsD. So do my parents163. His father likes going hiking. ________ .A. So does his motherB. So is his motherC. So his mother isD. So his mother does164. --- It‟s terribly cold today, isn‟t it?--- Yes. ______ yesterday.A. So it wasB. So was itC. So it isD. So is it165. --- After reading the story about Jin Jing,I was very _____ . --- ______. She‟s really brave.A. relaxed; So was IB. impressing; So did IC. impressed; so was ID. relaxing; So I did166. The new term is coming. The students are busy _____ the classroom.A. cleanB. cleansC. to cleanD. cleaning167. It's our duty to _______ people _______ too many trees.A. stop; cutting downB. prevent; to cut downC. keep; cutting downD. make; cut down168. --- My spoken English is poor. What shall I do? --- That‟s easy. Practise _____ it as much as possible.A. speakB. spokeC. speakingD. to speak169. Many young men enjoy _______ the pop music. A. listen to B. listening to C. to listen to D. listening170. She spends much time ______ English every day. A. read B. reading C. to read D. have read171. --- Would you mind me _____ ? --- ______. Do it as you like,please.A. to play the piano; Good ideaB. playing the piano; Of course notC. playing the piano; Of courseD. play the piano; All right 172. Last night he hurt his leg, but at last he ______ get home safely. A. could B. can C. dare D. was able to 173. --- ______ I tell John about it? --- No, you ______ . I‟ve told him already.A. Shall; needn'tB. May; wouldn‟tC. Can; mustn‟tD. Shall; shouldn‟t174. --- Where is Lucy? --- I‟m not sure. She ______ in the school library. A. maybe B. must be C. may be D. will be 175. When a driver sees the sign “STOP”, he _____ stop. He _____ go on.A. must; mustn‟t B. mustn‟t; must C. can; can…t D. can't; can 176. --- ______ I come back before 11:00? --- No, you ______. But you ____ be back later than lunch time.A. Must; needn‟t; can‟tB. Can; needn‟t; mayC. Need; mustn‟t; mustD. May; needn‟t; can‟t177. ---My car is broken. _____ you give me a ride tomorrow? ---I‟m sorry I _____. I‟m leaving for Hangzhou tonight.A. Can; may notB. Could; can'tC. Can; couldn‟tD. Could; mustn‟t178. --- ______ you play the piano? --- Yes, but I _____ play it well. A. Can; may not B. Can; can't C. May; can not D. May; may not 179. --- Our school is in great need of the books. --- Don‟t worry. They ______ here soon.A. have sentB. will sendC. have been sentD. will be sent180. A new store ______ at the corner of the road. A. is building B. is being built C. been built D. be building181. “What do you think of the basketball match yesterday?” “Well,it‟s surprising. The strongest team of our school ______ ."A. was beatenB. wonC. was lostD. was failed182. ---I hear there is a new factory near here. ---Yes, it_____ two months ago.A. is foundB. was foundC. is foundedD. was founded183. Do you know when the electricity _______? A. invents B. invented C. is invented D. was invented184. Are all the telephone numbers _______ in the directory? A. list B. listed C. listing D. being listed185. We ______ not to go out alone at night. A. are told B. tell C. told D. have told186. We learn how to surf the Internet because it ______ widely_______ in the world.A. is; usedB. is; usingC. does; useD. was; used187. --When did you _______the new motorbike? -- Well,I ________ it for half a month.A .have; have bought B. buy; have had C .buy; have bought D. have; have had188. If Mr. Smith _______ back,please let me know. A. will come B. comes C. came D. had come189. ---Tom is very ______ his new car. ---Yes, he enjoys driving it to show off.A. proud ofB. good atC. interested inD. famous for190. After a long walk,little Jim was hungry and tired. He could ______ walk any further.A. suddenlyB. hardlyC. luckilyD. mostly191. Wushu is becoming more and more popular _____ foreigners. A. among B. between C. for D. in192. ---I think our chemistry teacher is working hard. He teaches us_______.---Yes, but he hasn‟t come today. He doesn‟t feel______. A. good; well B. good; good C. well; best D. well; well193. “Remember, boys and girls. ______ you work,_____ result you will get.”“We know, Miss Gao.”A. The better; the harderB. the harder; the betterC. The hard; the betterD. The harder; the good194. --- Do you think they can win the match? --- I hope ________. A. so B. to C. so to D. not to195. _______ the help of the Internet, we can learn what other people around the world are doing.A. ByB. ThroughC. WithD. For196. --- Why don‟t you take the bike, Henry?--- It‟s too expensive. I can‟t _______ it.A. sellB. keepC. borrowD. afford197. --- How often do you go to a concert? ---________ ever. I‟m not interested in that at all.A. UsuallyB. HardlyC. AlmostD. Nearly198. “Can you tell me _______your parents at home?” “ I often wash clothes and sweep the floor.”A. how will you helpB. how you helpC. how you will helpD. how do you help199. Sam looks like his dad. They are ______ tall. A. either B. any C. all D. both200. ---Who‟s the man over there? Is it Mr. Black? ---It _______ be him. He‟s much taller.A. can‟tB. mustn‟tC. shouldD. may。