动词不定式专项练习一、动词不定式作主语1. It's our duty _________ the room every day.A. to cleanB. cleanedC. cleanD. cleans(甘肃省)2. It's hard for us _________ English well.A. learnB. learnsC. to learnD. learning(江西省)3.建造这座立交桥将花费工人们一年多的时间。
It will ________ the workers over a year _______ ______the flyover.(北京市海淀区)4. It's very nice _________ you to get me two tickets _________ the World Cup.A. for，ofB. of，forC. to，forD. of，to(安徽省)Keys：1. A 2. C 3. take，to，build 4. B［简析］动词不定式作主语时，可以直接放在谓语动词前面的主语位置，也可以用先行词it作形式主语，而将真正的主语(不定式)置于后面。
常见的句式有：(1)It is +形容词(of sb)to do sth.(2)It is +名词(for sb)to do sth(3)It takes sb some time to do sth(4)It is +形容词(for sb)to do sth.句式(1)中常用nice，kind，clever，good，right，wrong，foolish，careless等形容词，与介词of搭配，这些形容词常表述不定式逻辑主语的属性或性质；句式(4)中常用hard，difficult，easy，important等形容词，与介词for搭配，表示不定式表示的动作、行为的性质。
注意：当不定式作主语的句子中又有一个不定式作表语时，不能用It is… to…的句型(对)To see is to believe.百闻不如一见。
(错)It is to believe to see.It's for sb.和It's of sb.1) for sb. 常用于表示事物的特征特点，表示客观形式的形容词，如easy, hard, difficult,interesting, impossible等：It's very hard for him to study two languages. 对他来说学两门外语是很难的。
2) of sb的句型一般用表示人物的性格，品德，表示主观感情或态度的形容词，如good, kind, nice, clever, foolish, right。
It's very nice of you to help me. 你来帮助我，你真是太好了。
二、动词不定式作宾语1. He wants ______ some vegetables.A. buyB. buyingC. to buyD. buys (山西省)2. Don't forget ______ your homework with you when you come to school.A. to bringB. bringingC. to takeD. taking (福建省)3. He found it very difficult ______.A. sleepingB. sleepsC. sleptD. to fall asleep (湖南省)Keys：1. C 2. A 3. D［简析］在want，like，agree，hope，wish，learn，begin，start，seem，decide，hate，choose，forget，remember等动词后面，可以接不定式作宾语。
三、动词不定式作宾语补足语1. Robert often asks us ______ his Chinese, so his Chinese is much better than before.A. help himB. to help him withC. to help withD. helps him with (江苏省)2. Mr Li often teaches his Japanese friends ______ Chinese food.A. cookB. cooksC. to cookD. cooked (甘肃省) Key：1. B 2. C ［简析］不定式可以用作宾语补足语。
后面可以接不定式作宾语补足语的动词有：ask，teach，expect，tell，allow等。
四、动词不定式作状语1. She went ______ her teacher.A. to seeB. looksC. sawD. seeing (江西省)2. Meimei likes English very much. She does her best ______ English well.A. learnB. learningC. to learnD. learns (四川省) Key：1. A 2. C ［简析］go，come，try，do / try one's best等动词或短语动词作谓语时，其后常常可以接不定式作目的状语。
3. I'm sorry ______ that.A. hearsB. hearingC. hearD. to hear (河北省)4. I'm sorry ______ you.A. troubleB. to troubleC. troublingD. troubled (吉林省)5. My mother was very glad ______ her old friend.A. to meetB. meetC. metD. meets (甘肃省) Keys：3. D 4. B 5. A ［简析］＂be +形容词+ to do sth＂结构中的不定式作状语，常表示原因或方式。
6. The panda is so large that it can't go through the hole.(改为意思相同的句子) The hole ______ _____ ______ ______ such a large panda to go through. (广东省)7. The ice on the lake was so thin that people couldn't skate on it. (改为意思相同的句子)The ice on the lake wasn't ______ enough _____ people ______ ____ ____. (广东省) Keys：6. is，too，small，for 7. thick，for，to，skate，on［简析］在上述＂too +形容词/副词(for sb)to do…＂(太……而不能……)和＂enough (for sb) to do…＂(足以、足够……做……)结构中，不定式作结果状语。
五、动词不定式作定语1. Would you like something ______?A. drinkB. drinkingC. to drinkD. drinks (湖北省)2. I have a lot of homework ______.A. doB. doingC. didD. to do (河南省)3. He is not an easy man ______.A. get onB. to get onC. get on withD. to get on with (山东省)Key：1. C 2. D 3. D［简析］不定式作定语时，常放在被修饰的词语之后，与被修饰的词语为逻辑上的主谓关系或动宾关系；如果不定式的动词是不及物动词，其后要加上必要的介词或副词，构成的短语动词相当于及物动词。
六、不带to的动词不定式1. We saw him ______ the building and go upstairs.A. to enterB. enterC. enteringD. entered (河南省)2. So much work usually makes them ______ very tired.A. to feelB. feelsC. feelingD. feel (吉林省)3. Your father is sleeping. You'd better ______.A. not wake up himB. not to wake up himC. not wake him upD. not to wake him up (陕西省)4. I was made ______ my homework in the afternoon.A. doB. doingC. to doD. did (贵州省) Key：1. B 2. D 3. C 4. C ［简析］1.在see，watch，hear，feel等感官动词和make，have，let等使役动词后面作宾语补足语的不定式不带to.但是在被动语态中，作主语补足语的不定式要带to(let没有被动语态)。
2.在＂。
had better+V/not +V最好干。
＂后面接不带to的不定式。
七、动词不定式的否定形式1. Mr Black asked the man ________ the queue.A. not to jumpB. to not jumpC. didn't jumpD. not jump (广西壮族自治区)2. The old man told the child ______ noisy.A. not beB. not to beC. to not beD. be not (湖北省)3. There is going to ______ an important meeting tomorrow. Please try ______ late.A. have，not to beB. have，not beC. be，not to beD. be，not be (内蒙古自治区) Key：1. A 2. B 3. C ［简析］动词不定式的否定形式通常是在不定式符号to的前面加上not，如果是不带to的不定式就直接在动词原形前面加上not.八、某些动词后面接不定式和接动词-ing形式的区别1. Please stop ______ a rest if you feel tired.A. to haveB. havingC. haveD. has (广西壮族自治区)2. ——Why didn't you buy some bread on your way home?——Sorry, I forgot ______ some money with me.A. takeB. takingC. to takeD. took (湖北省)3. ——Let's have a rest, shall we?——Not now, I can't stop ______ the letters.A. writeB. to writeC. writingD. and write (湖北省)4. Jim was badly hurt, so he had to stop ______ (walk). (用所给单词的正确形式填空)(四川省) Key： 1. A 2. C 3. C 4. walking ［简析］一些常见的动词后面接不定式和接动词的-ing形式的区别如下：＂stop to do sth＂意为＂停止正在做的事情去做另外一件事＂，＂stop doing sth＂意为＂停止正在做的事＂：＂remember to do sth＂意为＂记住去做某事＂(事还未做)，＂remember doing sth＂意为＂记得做过某事＂(事已做)：＂go on to do sth＂意为＂接着做某事＂(做完一事，接着做另一事)，＂go on doing sth＂意为＂继续做某事＂(一事未做完接着往下做)：＂forget to do sth＂意为＂忘了做某事＂(事还未做)，＂forget doing sth＂意为＂忘了曾做过某事＂(事已做)。