新课标五级语法单选100题答案解析动词词组：1.----Don’t _____, my children. Keep working hard and you will win the match.----Thank you, Mr Zhang. We’ll try our best.A. put upB. call upC. set upD. give upE. pick upF. turn up解析：D；put up表示张贴，call up表示打电话，set up表示建立，pick up表示捡起，接（人），turn up表示开大，give up表示放弃。
2.We should learn how to ______ well with people around us.A. get alongB. get downC. get toD. get up解析：A；get along well with =get on well with表示和某人相处得好；3.----Allen, your bedroom is in a mess.----Sorry, mum, I’ll ______ my things at once.A. put onB. put awayC. put outD. put upE. put off解析：B；put on表示穿上，put away表示整理，put out表示扑灭，put off表示延期。
4.Cao Wenxuan’s book has just ______. Let’s go and buy one.A. come overB. come downC. come onD. come out解析：D；come over表示开始觉得，come down表示下来，come on表示快点，come out表示出版。
情态动词：5.----______ I swim here?----I’m sorry. Children ______ swim alone here.A. Must; can’tB. May; mustC. Can; mustn’tD. Can’t; can解析：C；mustn’t表示禁止。
6.----Must I do my homework now?-----______. You can do it tomorrow.A. No, you needn’tB. No, you mustn’tC. Yes, you needD. Yes, you must解析：A；Must表示必须，用在句首提问，否定回答用needn’t或don’t have to。
7.----What do you want to eat for lunch? I will prepare earlier today.-----Honey, you _____. Let’s go out to have something different.A. mustn’tB. can’tC. shouldn’tD. don’t have to解析：D；don’t have to=needn’t，表示不需要；shouldn’t表示不应该。
8.----Do we have to finish our homework this afternoon?----Yes, you ______.A. mustB. canC. mayD. need解析：A；Do we have to do? 回答用you must.9.----The lake is said to be dry. Is that true?----It _______. Look, some kids are swimming in it.A. must beB. can’t beC. may not beD. mustn’t be解析：B；情态动词表推测；对现在或将来的肯定推测用must do（一定）；对现在或将来的否定推测用can’t do（一定不）。
非谓语动词：10.You should keep the window ______ because the room is too hot.A. openB. openingC. openedD. opens解析：A；keep +sb./sth. +adj.表示让...保持怎么样。
11. When I went into the room, I found ______ in bed.A. him lyingB. he lyingC. he liesD. him was lying解析：A；find sb. do/doing sth表示发现某人做某事（或正在做某事）。
如果看成宾语从句，应该说I found (that) he was lying in bed.12.It was such a funny show that people couldn’t help _____ again and again.A. laughB. to laughC. laughingD. laughs解析：C；can’t/couldn’t help doing sth. 忍不住做某事。
13.----How about climbing the hill?----I would rather ______ along the river than ______ the hill. I’m a bit tired.或----I prefer ______ along the river to _____ the hill. I’m a bit tired.A. walk; climbB. walking; climbingC. walking; to climbD. walk; to climb解析：A；would rather do A than do B表示宁可做A事，也不做B事；B；prefer doing A to doing B表示相比较做B事，更喜欢做A事。
14.I’d like to suggest _______ the meeting till next week.A. to put offB. putting offC. put offD. to be put off解析：B；suggest doing sth表示建议做某事15.Internet Bars mustn’t let people under 18 in or let anybody _____ bad things.A. to watchB. watchC. watchingD. Watches解析：B；let sb do sth= have sb do sth= make sb do sth表示让某人做某事16.You’d better ______ because it’s bad for your health.A. not to smokeB. smokeC. not smokeD. to smoke解析：C；had better (not) do sth表示最好（不）做某事。
17.The boys were seen ______ basketball in the playground at that time yesterday.A. playB. playedC. to playD. Playing解析：D；题目中有at that time yesterday，表示昨天的那个时刻。
主动句应为：see sb doing sth. 表示看到某人正在做某事；转变为被动句为：sb be seen doing sth.注意：see sb do sth变为被动句应该为：sb be seen to do sth.18.Do you hear him _____ in the classroom?A. singB. singsC. is singingD. to sing解析：A；hear sb do sth表示听到某人做某事19.The husband advised _____ to the south, but his wife advised him ____ up the idea.A. moving; givingB.to move; to giveC. moving; to giveD.to move; giving解析：C；advise的用法advise doing sth表示建议做某事；advise sb to do sth表示建议某人做某事。
现在完成时（短暂性动词和持续性动词）：20.When he arrived at the bus stop, the bus ______ for 20 minutes.A. has leftB. had leftC. has been awayD. had been away解析：D；句中有两个动词：他到达和公交车离开，达到和离开有明显的先后顺序，且都发生在过去，所以先动作要用过去完成时（had done）。
公交车已经离开20分钟，强调状态，所以需用持续性动词，leave为短暂性动作。
21.The factory _____ since the February of 2008.A. has been openB. has openedC. was openD. opened解析：A；看到since+时间点或for+时间段，需用用现在完成时，且与持续性动词连用。
Open 做动词为短暂性动词，转换为持续性动词为：be open。
22.Mary and Rose ______ friends since they met in 2010.A.have madeB. have beenC. madeD. have become解析：B；since+一般过去时为标志词，需用现在完成时，且与持续性动词连用。
Make friends 和become friends都是短暂动作，故用be friends。
23.The meeting _____ for a week until now.A. has finishedB. has endedC. has been over D be over解析：C；for+时间段，需用现在完成时，且与持续性动词连用。
Finish和end都是短暂性动词，故用be over。
24.Tom is ill in hospital. He ______ a cold for several days.A. isB. catchesC. has caught D has had解析：D；看到for+时间段，需用现在完成时，且与持续性动词连用。