（人教版）九年级英语动词不定式专项练习（含答案）

动词不定式专项练习
一、核心知识归纳
（一）动词不定式基本结构
基本形式：to + 动词原形（否定式：not to + 动词原形）
特殊情况：部分动词后需省略to，即“动词 + sb. + 动词原形”
（二）六大高频考点核心用法
1. 动词不定式作主语
基本结构：To do sth. + 单数谓语动词
常用句型：It + adj. + for sb. to do sth.（描述行为特征，如important/easy）；
It + adj. + of sb. to do sth.（描述人的品质，如kind/foolish）
例句：It is necessary for us to exercise every day. / It’s kind of you to help me.
2. 动词不定式作宾语
直接作宾语：常见动词有hope、want、decide、agree、plan、expect、try等（后接to do）
形式宾语结构：think/find/make + it + adj. + to do（it为形式宾语，to do为真正宾语）
例句：She wants to travel around the world. / I find it easy to learn English.
3. 动词不定式作宾语补足语
带to结构：常见动词有ask、tell、want、encourage、advise、expect等（V. + sb. + to do）
省to结构：一感（feel）、二听（listen to、hear）、三让（let、make、have）、四看（look at、see、watch、notice）（V. + sb. + do）
例句：The teacher told us to finish homework on time. / I saw him cross the street.
4. 动词不定式作表语
结构：主语 + be + to do sth.（说明主语的身份、职业、目的或梦想）
例句：His dream is to be a doctor. / My job is to take care of children.
5. 动词不定式作状语
表目的：常位于句首或句末，译为“为了……”
表原因：常用be + adj. + to do结构（如glad、sorry、happy等）
表结果：常用too + adj./adv. + to do（太……而不能）、adj./adv. + enough + to do（足够……能）
例句：He got up early to catch the bus.（目的）/ I’m glad to meet you.（原因）/ The box is too heavy to carry.（结果）
6. 疑问词 + 动词不定式
结构：疑问词（what、who、how、when、where等）+ to do
用法：在句中作主语、宾语或表语
例句：I don’t know how to solve this problem.（宾语）/ When to start is still a question.（主语）
二、专项练习题
（一）动词不定式作主语
( ) 1. ________ is important for students to finish their homework on time.
A. This B. That C. It D. These
( ) 2. It’s kind ________ you ________ me with my math homework.
A. of; to help B. for; to help C. of; helping D. for; helping
( ) 3. ________ to learn a foreign language well takes a lot of time and effort.
A. That B. This C. It D. To
( ) 4. It’s dangerous ________ alone at night.
A. walk B. walking C. to walk D. walked
( ) 5. It’s foolish ________ him ________ such a silly mistake.
A. of; to make B. for; to make C. of; making D. for; making
( ) 6. ________ is our duty to protect the environment.
A. This B. That C. It D. What
( ) 7. It’s easy ________ the task if we work together.
A. finish B. to finish C. finishing D. finished
( ) 8. It’s necessary ________ us ________ more exercise every day.
A. of; to do B. for; to do C. of; doing D. for; doing
( ) 9. ________ to travel around the world is my biggest dream.
A. What B. That C. It D. To
( ) 10. It’s polite ________ you ________ greet your teachers when you meet them.
A. of; to B. for; to C. of; / D. for; /
( ) 11. It’s not easy ________ a good job in the current job market.
A. find B. to find C. finding D. found
( ) 12. ________ is interesting ________ different kinds of books.
A. It; read B. That; to read C. It; to read D. This; reading
( ) 13. It’s careless ________ her ________ the key at home.
A. of; to leave B. for; to leave C. of; leaving D. for; leaving
( ) 14. ________ to master computer skills is very useful for our future work.
A. That B. It C. This D. To
( ) 15. It’s important ________ children ________ good habits from an early age.
A. of; to develop B. for; to develop C. of; developing D. for; developing
（二）动词不定式作宾语
( ) 1. She hopes ________ a famous singer in the future.
A. become B. to become C. becoming D. became
( ) 2. My parents decided ________ to the countryside for a picnic this weekend.
A. go B. to go C. going D. went
( ) 3. I find ________ difficult ________ English grammar well.
A. it; to learn B. that; to learn C. it; learning D. that; learning
( ) 4. He refused ________ my advice because he thought he was right.
A. take B. to take C. taking D. took
( ) 5. They plan ________ a trip to Qingdao during the summer vacation.
A. take B. to take C. taking D. took
( ) 6. She expects ________ her favorite star at the concert.
A. see B. to see C. seeing D. saw
( ) 7. I think ________ necessary ________ more time with our family.
A. it; to spend B. that; to spend C. it; spending D. that; spending
( ) 8. He tried ________ the door, but it was locked.
A. open B. to open C. opening D. opened
( ) 9. My brother agreed ________ me with my homework after school.
A. help B. to help C. helping D. helped
( ) 10. She likes ________ classical music in her free time.
A. listen to B. to listen to C. listening D. to listening
( ) 11. The manager promised ________ the problem as soon as possible.
A. solve B. to solve C. solving D. solved
( ) 12. I consider ________ important ________ keep in touch with old friends.
A. it; to B. that; to C. it; / D. that; /
( ) 13. He wants ________ a new mobile phone because his old one is broken.
A. buy B. to buy C. buying D. bought
( ) 14. She decided ________ up smoking to keep healthy.
A. give B. to give C. giving D. gave
( ) 15. I found ________ interesting ________ the history of ancient China.
A. it; to study B. that; to study C. it; studying D. that; studying
（三）动词不定式作宾语补足语
( ) 1. The teacher asked us ________ late for class again.
A. not be B. not to be C. don’t be D. not being
( ) 2. My mother encourages me ________ more books in my free time.
A. read B. to read C. reading D. reads
( ) 3. I saw him ________ basketball on the playground just now.
A. play B. to play C. playing D. plays
( ) 4. The boss told his workers ________ harder to finish the project on time.
A. work B. to work C. working D. worked
( ) 5. Let me ________ you how to use this machine.
A. show B. to show C. showing D. shows
( ) 6. She advised me ________ a plan before starting the work.
A. make B. to make C. making D. made
( ) 7. We heard the baby ________ in the next room last night.
A. cry B. to cry C. crying D. cries
( ) 8. The doctor told the patient ________ more rest and drink more water.
A. take B. to take C. taking D. took
( ) 9. My father let me ________ the car because I was too young.
A. not drive B. not to drive C. don’t drive D. not driving
( ) 10. They expect their son ________ a good university in the future.
A. enter B. to enter C. entering D. entered
( ) 11. I watched the children ________ kites in the park yesterday afternoon.
A. fly B. to fly C. flying D. flies
( ) 12. The teacher warned us ________ near the river. It’s dangerous.
A. not go B. not to go C. don’t go D. not going
( ) 13. She wants her daughter ________ piano every day.
A. practice B. to practice C. practicing D. practices
( ) 14. The boss made the workers ________ for 10 hours a day.
A. work B. to work C. working D. worked
( ) 15. We asked him ________ us the truth about the accident.
A. tell B. to tell C. telling D. told
（四）动词不定式作表语
( ) 1. My main goal this year is ________ my English level.
A. improve B. to improve C. improving D. improved
( ) 2. Her job is ________ care of the elderly in the community.
A. take B. to take C. taking D. takes
( ) 3. The most important thing is ________ calm when we face difficulties.
A. keep B. to keep C. keeping D. kept
( ) 4. His dream is ________ a scientist when he grows up.
A. become B. to become C. becoming D. became
( ) 5. The purpose of this meeting is ________ a solution to the problem.
A. find B. to find C. finding D. found
( ) 6. What he wants to do most is ________ around the world.
A. travel B. to travel C. traveling D. traveled
( ) 7. The only thing we need to do now is ________ for the exam.
A. prepare B. to prepare C. preparing D. prepared
( ) 8. My wish is ________ my parents live a happy life.
A. make B. to make C. making D. made
( ) 9. The result of his hard work is ________ the first prize in the competition.
A. win B. to win C. winning D. won
( ) 10. What matters most is ________ honest to others.
A. be B. to be C. being D. been
( ) 11. Her hope is ________ a teacher in a mountain village.
A. become B. to become C. becoming D. became
( ) 12. The function of this machine is ________ water clean.
A. make B. to make C. making D. made
( ) 13. The meaning of this word is ________ something that gives you pleasure.
A. express B. to express C. expressing D. expressed
( ) 14. Our task is ________ all the work before Friday.
A. finish B. to finish C. finishing D. finished
( ) 15. The aim of the activity is ________ students’ interest in science.
A. develop B. to develop C. developing D. developed
（五）动词不定式作状语
( ) 1. She got up early ________ catch the first bus to the city.
A. in order to B. so that C. because D. since
( ) 2. I’m sorry ________ you waiting for so long.
A. keep B. to keep C. keeping D. kept
( ) 3. He ran as fast as he could ________ the train.
A. catch B. to catch C. catching D. caught
( ) 4. The boy is too young ________ himself.
A. dress B. to dress C. dressing D. dressed
( ) 5. We went to the library ________ borrow some reference books.
A. for B. in order to C. so that D. because of
( ) 6. The movie is interesting enough ________ again.
A. watch B. to watch C. watching D. watched
( ) 7. She was happy ________ that her son passed the exam.
A. hear B. to hear C. hearing D. heard
( ) 8. He studied hard ________ get good grades in the final exam.
A. in order to B. so as to C. both A and B D. because
( ) 9. The box is too heavy ________ by a single person.
A. carry B. to carry C. carrying D. carried
( ) 10. They came to the city ________ a better life.
A. seek B. to seek C. seeking D. sought
( ) 11. I’m glad ________ your invitation to the party.
A. accept B. to accept C. accepting D. accepted
( ) 12. The girl is old enough ________ to school.
A. go B. to go C. going D. went
( ) 13. He stayed up late last night ________ finish his report.
A. to B. for C. because D. since
( ) 14. The water is too hot ________ now.
A. drink B. to drink C. drinking D. drunk
( ) 15. She went back home ________ her forgotten keys.
A. get B. to get C. getting D. got
（六）疑问词 + 动词不定式
( ) 1. I don’t know ________ this problem. Can you help me
A. how to solve B. what to solve C. how solve D. what solve
( ) 2. She asked me ________ the nearest post office.
A. where to find B. how to find C. where find D. how find
( ) 3. The question is ________ we should start the project.
A. when to B. what to C. how to D. where to
( ) 4. He can’t decide ________ for his mother’s birthday.
A. what to buy B. where to buy C. how to buy D. when to buy
( ) 5. Do you know ________ to the party tomorrow
A. what to wear B. how to wear C. what wear D. how wear
( ) 6. The teacher told us ________ the experiment correctly.
A. how to do B. what to do C. how do D. what do
( ) 7. I’m thinking about ________ during the summer vacation.
A. where to travel B. what to travel C. where travel D. what travel
( ) 8. She doesn’t know ________ to ask for help.
A. who to B. what to C. who D. what
( ) 9. The problem is ________ we can get enough money.
A. how to B. what to C. how D. what
( ) 10. He showed me ________ the machine.
A. how to operate B. what to operate C. how operate D. what operate
( ) 11. Do you have any idea ________ the lost cat
A. where to find B. how to find C. where find D. how find
( ) 12. She can’t remember ________ the book she borrowed from the library.
A. when to return B. what to return C. when return D. what return
( ) 13. The key is ________ we can improve our study efficiency.
A. how to B. what to C. how D. what
( ) 14. I don’t know ________ to deal with the difficult situation.
A. how B. what C. how to D. what to
答案汇总
（一）动词不定式作主语
C 2. A 3. D 4. C 5. A 6. C 7. B 8. B 9. D 10. A 11. B 12. C 13. A 14. D 15. B
（二）动词不定式作宾语
B 2. B 3. A 4. B 5. B 6. B 7. A 8. B 9. B 10. B 11. B 12. A 13. B 14. B 15. A
（三）动词不定式作宾语补足语
B 2. B 3. A 4. B 5. A 6. B 7. A 8. B 9. A 10. B 11. A 12. B 13. B 14. A 15. B
（四）动词不定式作表语
B 2. B 3. B 4. B 5. B 6. B 7. B 8. B 9. B 10. B 11. B 12. B 13. B 14. B 15. B
（五）动词不定式作状语
A 2. B 3. B 4. B 5. B 6. B 7. B 8. C 9. B 10. B 11. B 12. B 13. A 14. B 15. B
（六）疑问词 + 动词不定式
A 2. A 3. A 4. A 5. A 6. A 7. A 8. A 9. A 10. A 11. A 12. A 13. A 14. C