智学网整理了2020中考英语语法常识之非谓语动词考试试题的两大秘籍，期望对同学们有所帮助，仅供参考。
通过对历年高考考试英语非谓语动词考试试题的总结和比较可以看出，每年差不多有三分之二的非谓语动词考试试题可能涉及以下关系：主动与被动关系与动作的先后关系。假如同学们在做题时能充分注意这两大关系，并据此进行分组排除，然后结合其他非谓语动词的有关常识，攻克非谓语动词这一难题也就变得比较容易了。
1、借助主动和被动关系
这里说的主动与被动关系，指的是非谓语动词所表示的动作与其逻辑主语之间是主动关系还是被动关系。如果是主动关系，非谓语动词就用主动式;如果是被动关系，非谓语动词就用被动式。下面分三类举例说明：
1. 涉及不定式的主动与被动式
I feel greatly honored _________ into their society.
A. to welcome B. welcoming C. to be welcomed D. welcomed
答案为C。behonored后习惯上接不定式，故可排除B和D;又由于I与welcome之间为被动关系，故用不定式的被动式。
The message is very important, so it is supposed _________ as soon as possible.
A. to be sent B. to send C. being sent D. sending
答案为A。be supposed后习惯上不接动名词，而接不定式，其意为应该做某事，故可排除C和D;又由于消息与传达之间为被动关系，故用被动式。
2. 涉及动名词的主动与被动式
At the beginning of class, the noise of desks _________ could be heard outside the classroom.
A. opened and closed B. to be opened and closed
C. being opened and closed D. to open and close
答案为C。因为desks与open和close的关系是被动关系，故要用被动式，可排除D;又由于用于介词of后作宾语，所以要用动名词，不需要不定式或过去分词，故可排除A和D，所以答案选C。
3. 涉及目前分词的主动与被动式
_________ that she was going off to sleep, I asked if shed like that little doll on her bed.
A. Seeing B. To see C. See D. Seen
答案为A。第一要排除B和C，由于B为不定式，它用于句首时，一般是表示目的，在此不合句意;而C为动词原形，选它会构成祈使句，一是句意不通，二是如此会致使前后两句之间没连词而出错。在剩下的A和D之间，只能选seeing，不可以选seen，由于句子主语是 I与see之间为主动关系，而非被动关系。
【注意】因为过去分词本身可以表示被动，所以过去分词不需要被动式，同时它也没被动式。请看几道有关的考试试题：
The trees _________ in the storm have been moved off the road.
A. being blown down B. blown down C. blowing down D. to blow down
答案为B。因为trees与blow down之间为被动关系，故要用过去分词。blown down in the storm在此用作定语，修饰the trees，等于定语从句which were blown down in the storm。
To learn English well, we should find opportunities to hear English _________ as much as we can.
A. speak B. speaking C. spoken D. to speak
答案为C。因为English与speak之间为被动关系，故要用过去分词。
We finished the run in less than half the time _________.
A. allowing B. to allow C. allowed D. allows
答案为C。因为time与allow之间为被动关系，故要用过去分词。in the time allowed意为在规定的时间内。
2、借助动作的先后关系
动作的先后关系在选项中的直接体现为一般式还是完成式。一般说来，当非谓语动词所表示的动作发生在谓语动词所表示的动作之前时，非谓语动词原则上要用完成式。
1. 涉及不定式的动作先后关系
Leonardo da Vinci _________ birds kept in cages in order to have the pleasure of setting them free.
A. is said to be buying B. is said to have bought
C. had said to buy D. has said to have bought
答案为B。be said+不定式是英语中一个非常有用的结构，其意为据了解。其中的不定式是用一般式还是完成式，取决于该不定式所表示的动作是发生在谓语动作之前还是之后。依据句意可知，buy birds一定发生在过去，或者说发生在is said之前，所以其中的不定式要用完成式，故答案选B。又如：Mr. Brown is said to have died of liver cancer. 据了解布朗先生死于肝癌。
2. 涉及动名词的动作先后关系
I hear theyve promoted Tom, but he didnt mention _________ when we talked on the phone.
A. to promote B. having been promoted
C. having promoted D. to be promoted
答案为B。因为动词mention后接动词作宾语时，习惯上要用动名词，不需要不定式，故可排除A和D;再依据句意可知，句中的he与promote之间为被动关系，故要用被动式，同时，因为被提拔与提到之间有明显的先后关系，即被提拔在先，提到在后，故用动名词的完成被动式，即答案选B。
3. 涉及目前分词的动作先后关系
_________ around the Water Cube, we were then taken to see the Birds Nest for the 2008 Olympic Games.
A. Having shown B. To be shown
C. Having been shown D. To show
答案为C。依据句意可知，大家与带去参观之间为被动关系，故应用非谓语动词的被动式，可排除A和D;再依据句中的then可知，前后动作有明显的先后关系，故先发生的动作要用完成式，故选C。
_________ to reach them on the phone, we sent an email instead.
A. Fail B. Failed C. To fail D. Having failed
答案为D。依据语境剖析，用电话联系与发邮件两个动作之间有明显的先后关系，故先发生的动作要用完成式。
【注意】因为过去分词本身可以表示完成，所以过去分词不需要完成式，同时它也未完成式。请看一道有关的高考考试题：
It is one of the funniest things _________ on the Internet so far this year.
A. finding B. being found C. to find D. found
答案为D。因为things与find之间为被动关系，故可排除A和C。依据句意，应该是这件有趣的事先让人们发现，后才让人们谈论，但因为过去分词未完成式，故用一般式表示完成，故选found。
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