Its adj of for sb to do sth

形式主语代替动词不定式的常用句型为： It’s + adj. + (of / for sb. ) to do sth. 或 It’s +n. +(for sb. ) to do sth. 。 e. g. It’s very nice of you to offer me a seat. It’s very dangerous for children to cross the busy street. It was great fun to have a picnic there.

考点二：作宾语。 常跟动词不定式作宾语的动词有agree, afford, decide, determine, expect, fail, hope, learn, offer, prepare, plan, promise, refuse, want等。 注意：在find, think等后跟动词不定式作宾 语时，常用it作形式宾语，而将真正的宾语 ——动词不定式后置。 e. g. I find it hard to get along with him.

1. Vivian refuses ___ her children to the A weekend training centre for extra classes. (2017上海) A. to send B. sending C. sent D. sends 2. We only planned ____ the play for an hour, C but in the end, we stayed for three hours. (2017天津) A. watch B. watches C. to watch D. watched

3. — Do you have any plans for the coming vacation? D — Sure. We decide ____ Sansha in July. (2017重庆A卷) A. visit B. visiting C. visited D. to visit D 4. — Jack, why have you decided ___ Chinese folk music as a courses. — To learn more about Chinese culture. (2017江苏苏州) A. take B. taken C. taking D. to take

5. Nowadays, it’s convenient and cheap for us B _____ a shared -bicycle. (2017昆明) A. ride B. to ride C. flying D. to fly 6. — Mario, your mobile phone is ringing. — Wait a minute. It’s dangerous for us ___ it B while crossing the street. (2017四川南充) A. answering B. to answer C. answer D. answered

6. The girl students are discussing _____ the C walls in the classroom. (2017江苏宿迁) A. what to paint color B. to paint what color C. which color to paint D. to paint which color

B 7. They decided _____ a bridge over the river. (2015四川遂宁) A. build B. to build C. building 8. I wanted to see the Beijing Opera, so C Lingling offered ____ me to watch an opera. (2016天津) A. took B. takes C. to take D. taking

9. She said she hoped ______her daughter. A (2016湖南邵阳) A. to see B. you to see C. seeing 10. I can’t tell you what she said. I’ve B promised _____ it a secret. (2016上海) A. keep B. to keep C. keeping D. kept

2. 使役动词(如make, let等)及感官动词(如 see, feel, hear, watch, notice等)后跟动词 不定式作宾语补足语时需省略to。 注意在变为被动语态时要加上to。 e. g. I saw a young man enter the room. She was often heard to sing this song.

1. To keep children away from danger, we warn parents ____ children at home alone. D (2017湖北孝感) A. leave B. to leave C. not leave D. not to leave 2. — I didn’t hear you come in just now. B — That’s good. I tried ___ the baby up. (2017 四川乐山) A. to wake B. not to wake C. waking

A 3. Our teacher often advises us _____ the habit of making notes while reading. (2016苏州) A. to develop B. develop C. to developing D. developing D 4. You should ask Bob ___ his own clothes. He is ten years old now. (2016重庆A卷) A. wash B. washes C. washing D. to wash

5. We advise parents ______ their children A at home alone in order to keep them away from danger. (2016黑龙江东) A. not to leave B. not leave C. not leaving

Joining a summer camp is a great C chance ____ free time with your friends. (2016吉林) A. spend B. spending C. to spend

考点四： 作状语。 动词不定式作状语往往表示原因、目的、结 果等。 e. g. They were surprised to find that nobody was in the house. (表示原因) To get a good seat she arrived at the hall early. (表示目的) The boy is old enough to take care of himself. (表示结果)

说明： 1. had better， would rather， Why not. . . ? ， Will / Would you please. . . ? 后面接不带to的 动词不定式。 e. g. To catch the early bus, you’d better get up early tomorrow morning. 2. 动词不定式可以和疑问词what， which， how，where， when等连用，构成动词不 定式的特殊结构。 e. g. Can you tell me where to buy a map?

1. Whenever we kids come over, Auntie Susan C just stands there and watches us ___ sure we don’t break anything. (2017河南) A. make B. made C. to make D. making 2. As a volunteer, the girl wants to visit sick kids in the hospital ___ them up. (2016山东青岛) A A. to cheer B. cheer C. cheering D. cheered

3. — I’ll have a ten-day holiday. But I don’t B know ______. — How about Paris? (2016成都) A. what to do B. where to go C. when to go

4. The Chinese team are working hard A ____ honors in the 2016 Olympic Games. (2016湖南株洲) A. to win B. win C. winning 5. It’s getting dark. You’d better _____ A out by yourself. It’s dangerous. (2016四川 宜宾) A. not go B. not to go C. to go

6. I bought a big box ____ books B for kids in poor areas. (2016吉林长春) A. collects B. to collect C. collect D. collected

_____ is the best way to keep a good B relationship with your parents, teachers and other people around you. A. Active communicating B. Actively communicating C. Actively communication D. Active communicate

考点二：作宾语。 1. 在初中阶段我们需要掌握的后跟动词-ing 形式作宾语的词语有dislike, consider, enjoy, finish, imagine, keep, mind, practice, suggest, give up, put off, keep on, be busy, have fun, be afraid of, be good at, be interested in, be used to, look forward to, feel like, thanks for等。

try to do sth. 设法做某事 try doing sth. 尝试做某事 need to do sth. 需要去做某事 need doing 需要被做 mean to do sth. 打算去做某事 mean doing sth. 意味着做某事 used to do sth. 过去常常做某事 be used to doing sth. 习惯于做某事

1. The workers are busy ___ windows to the new C building these days. (2017上海) A. fix B. fixed C. fixing D. to fix D 2. Dave is a good boy and he always finishes ___ his homework on time. (2017重庆B卷) A. do B. did C. does D. doing

3. — Nowadays lots of products from China are very popular in the world. — Yeah! Many people can hardly avoid ___ products made in China. (2017湖北 B 黄冈) A. to buy B. buying C. bought D. buy

A 4. We feel like _____ some food and drink be cause we’ll invite some friends _____ in a party. (2016黑龙江齐齐哈尔) A. buying, to join B. to buy, joining C. buying, join

D 5. After she finished ______the story, Alice wrote a review for her school newspaper. (2016上海) A. read B. reads C. to read D. reading 6. Bruce practices ____ basketball C every day so that he can be a better player. (2016海南) A. play B. to play C. playing

7. My father used to drive to work, A but he is used to ______ now. (2016贵 州六盘水) A. walking B. walked C. walks D. walk

B 1. China has seen a trend(潮流 ) of ____ shared bikes since last year. (2017江苏盐 城) A. ride B. riding C. take D. taking 2. My favorite TV program is “Readers”. I think we should spend as much time as we can ___ in our spare time. (2016海南) C A. read B. to read C. reading

3. The show was so funny that it made C everyone ______ again and again. (2016 山东济宁) A. laugh B. laughed C. laughing D. to laugh

考点四：作定语。 e. g. The man standing there is my friend C Look! There are some birds _____ in the sky. They are very beautiful. (2015四川宜宾) A. to fly B. fly C. flying D. flown

考点一：作定语。 e. g. China is a developing country. America is a developed country. 考点二：作表语。 e. g. The book is interesting. I’m interested in it.

考点三：作宾语补足语。 e. g. I saw her going upstairs. I want to have some photos taken. 考点四：作状语。 e. g. Laughing and talking, they went into the room.