非谓语动词是高中语法的重点，也是难点，学生常常对此感到头疼。其实只要理解并掌握非谓语动词各种形式的特点，做起题来会很轻松。我们先来看看非谓语动词的各种变化形式。
熟悉知道了非谓语动词形式后，做题时可分四步分析。
一、分析句子结构。
1many times , but he still couldn't understand it .
2many times , he still couldn't understand it .
a. h**ing been told . b. told
c. he was told d. though he had been told
3to the left , you'll find the post office .
4. if you __to the left , you'll find the post office .
5to the left , and you'll find the post office .
a. turning b. to turn c. turn d. turned
分析：句1. 用连词but 引导并列句子，因此，前面也是个独立句子成分，故选c。
句2. 句中用逗号隔开，且无连词引导，因此，前面不是句子结构，只是句子的一个成分，故选a，用非谓语动词作状语。
句3. 同句2，选a 。
句4. 前面用if 引导从句，故选c ，构成从句谓语。
句5. 同句1，选c。
二、分析逻辑主语。
确定要选非谓语动词之后，第二步要分析其逻辑主语。非谓语动词虽不能作谓语，但仍具有动词特点，其逻辑上的动作执行者就叫做逻辑主语。非谓语动词作状语时，其逻辑主语须和句子的真正主语一致。
若不一致，则须加上自己的逻辑主语。
1no buses , we h**e to walk home .
a. there being b. it were c. there were d. it being
2. _sunday i shall h**e a quiet day at home .
分析：句1. 表示"没有公共汽车"，应用"there be"结构，即逻辑主语是"there"，故选a 。
句2. 同理选d。
三、分析语态。
分析语态就是在确定逻辑主语之后，分析非谓语动词和逻辑主语在搭配使用时是主动还是被动关系。
1. _from space , the earth looks blue .
2.__from space , we can see the earth is blue .
a. seen b. seeing c. to see
这两个题选项中的非谓语动词都没有加自己的逻辑主语， 因此其逻辑主语就是句子的主语。
分析：句1. "地球"被"看起来"，表被动，故选a，用过去分词表被动。
句2. 我们"主动看。即表主动，故选b。
3. the dirty clothesthe girl hung them up outside .
4. _the dirty clothes ,the girl hung them up outside .
a. was washed b. washed washed washed
分析：句3. 前面应用非谓语动词作句子的状语，逻辑主语是"the dirty clothes"，和动词搭配表示"衣服被洗"，故选b。
句4. 逻辑主语为句子的主语"the girl"，表示"女孩洗衣服"，为主动关系，故选d。
四、分析时态，在选定了主动或被动后，还要考虑动作发生的时间问题，即时态。
1. the building __now will be a restaurant .
2. the building __next year will be a restaurant .
3. the building __last year is a restaurant.
a. h**ing been built be built
built d. built
句1中 now 说明大楼正在被修，故用进行式，选c。
句2中next year 说明大楼将在明年被修，故用表将来的不定式，选b。
句3中 last year 说明大楼已被修，但不能选，因为现在分词的完成式不能作定语，故用过去分词，选d。
又如：1. he stood there___for his mother .
2. _for two hours , he went away .
a. waiting b. to wait c. waited waited
句1表示"站在那等"，两个动词同时发生，故选a作伴随状语。
句2表示已经等了两个小时，发生在谓语动词"went away "之前，故用完成式，选d 。
需要注意的是，非谓语动词的否定也是常考的项目，要认清否定形式，非谓语动词的否定都应将not 放在前面。如：
what is the reason for __there ?
a. not your going b. not your go
c. your not going d. you not to go
巩固练习：1. _won't be of much help .(a)
a .tom's going b. tom going c. tom to go d. tom goes
2. they managed __the meeting room before the guests arrived. (c)
a. finishing to clean b. finishing cleaning
c. to finish cleaning d. to finish to clean
3. we must find a room big enough __b)
a. for all of us to live b. for all of us to live in
c. to live in all of us d. of all of us to live
4. _a teacher , i should set a good example to students . a)
a. being b. h**ing been c. to be d. as i being
5. _a teacher ,one must first be their pupil . c)
a. being b. h**ing beenc. to be d. to h**e been
6. it was stupid __your advice. (c)
a. for me not to take b. for me not takingc. of me not to take d. of me not taking
7. the teacher told him to speak louder __by , everybody. (a)
a. so as to be heard b. so as to hearc. in order that heard d. in order to hear
8. they suggested __the sports meet till next tuesday. (b)
a. us to put off b. our putting offc. us of putting off d. our put off
9. the doctor g**e me some medicine , three times a day before meals. (c)
a. to take b. to be taking c. to be taken d. i took it
10. thanking them for their kindness , he said that the old lady really appreciated __by them. (d)
a. visiting b. visitedc. to be visited d. being visited
11. _made her parents very angry . b)
a. jane's engaging black b. jane's being engaged to black
c. jane h**ing engaged to black d. jane has engaged to black
12. don't you think it any good___in public places? (b)
a. forbidding smoking b. to forbid smokingc. to forbid to smoke d. forbidding to smoke
13. china is a __country and we should introduce __science and technology from thecountries. (b)
a. developed; advanced; developed b. developing;advanced;developed
c. developing;advancing;developing d. developed; advancing ; developing
14. _the work can be done much better . c)
a. given more time had been given more timec. more time given d. if more time had given
15. _from space , the earth , with water __seventy percent of its surface , looks like a "blueball". d)
a. seen ; covered b. seeing ; coveringc. seeing; covered d. seen; covering
16. people always shake hands with each other when __c)
a. to introduce b. introduce c. introduced d. introducing
17. _tears ran down her pale face. (a)
a. no word said b. say no wordc. not saying a word d. without saying a word
18. tigers __meat -eating animals , meat . a)
a. belonged to ;fed on b. belonging to ; feed on
c. were belonged to ; feed on d. belonging to ; feeding on
19. we must take measures to prevent our earth __c)
a. to be polluted b. from pollutingc. from being polluted d. from polluted
20. as the stone was too he**y to move , i left it __on the ground . c)
a. laying b. lay c. lying d. lain.
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