八年级英语上册第五单元语法

八年级英语Units 5单元语法非谓语动（固定用法）

常见动词不定式词组、句型用法总结

1. 动词不定式宾语和宾语补足语

以下动词后常跟不定式作宾语和宾语补足语

want to do sth agree to do sth

decide to do sth plan, to do sth

learn to do sth hope to do sth

fail to do sth happen to do sth ,

offer to do sth try to do sth

would like to do sth remember to do sth

forget to do sth seem to do sth

volunteer to do sth help sb do sth /to do sth

in order to do sth get/be ready to do

wish sb. to do sth. can’t wait to do

have to do sth can/can’t afford t do

make a decision to do sth, be sure to do sth

be able to do sth stop to do sth

allow sb to do sth ask sb to do sth

tell sb to do sth show (sb) to do sth

teach (sb)to do sth invite (sb) to do sth

encourage(sb)to do sth prefer to do sth

refuse(sb)to do sth expect to do sth

sb need to do sth / sth need doing/ sth need to be done

2 sb be + adj（表示人心情的词）+ to do sth

sb+be +sorry / glad / surprised / pleased / angry / happy / sure /excited/ amazed/relaxed/ lucky/ to do sth

3.. too …to do sth too +adj/adv+ to do sth

4.….enough to do sth adj/adv+ enough +(for sb )to do sth

5 疑问词+不定式：how ,when , where, what, which + to do sth

6 .固定短语后用动词不定式：

(do)try one’s best to do sth,

It takes sb some time to do sth,

It’s one’s turn to do sth.

It’s time(for sb.) to do sth.

find/think/feel it +adj. to do sth.

It’s + adj + to do sth

It’s + adj + of / for sb to do sth

It’s easy / hard / important/ / impossible / interesting / difficult / necessary / …for sb to do sth（adj描述不定式to do sth的特征，性质时常用for sb）

It’s good / kind / nice / wise / clever/ rude / patient / polite / foolish / right / wrong / careful of sb to do sth (描述主语人的性质，身份和特征时常用of sb)

7 .the+序数词first/second/third…+名词/代词+to do sth表示第几做…

8．.名词或代词+不定式。不定式to do 放名词或代词后修饰名词或代词

I need something to drink he has no money to buy a computer \

smile is the best way to make new friends they need a room to live in

9．不定式to do 可用来表示目的可放句首.句末

一用所给动词的适当形式填空。

1.．Where do you plan (go) this Sunday?

2.．.I hope (watch) the action movie one day.

3.. It’s too cloudy and seemed ________(rain). The farmers had to hurry home.

4.．. He had no chance _______(get) education.

5.. ---Have you decided where _________(take) your wedding holiday?---Not yet.

6. . Mike wasn’t tall enough _________(reach) the clock on the wall.

7. . He thinks it a good habit________(get) up early in the morning.

8... I’m sorry _______(trouble) you, but could you show me how _______

(use) the micro-wave oven?

9...can you help me _________( take)care of my baby

10. . Would you like __________(join) us in playing soccer

11.We were surprised _________(hear) the bad news

12.Please remember ( bring) your homework here

13.My sister wants ( study )hard at Math

14.They agree ( have ) a sports meeting

15.The little girl decided ( buy ) a gift for her mother

16.in order ( get ) good grades ,Bob studies harder than before

17. Junk food is bad for our health , we should try ( eat) less

18. My grandpa is a kind man , he is always ready ( help ) others