语法和词汇考点详解----非谓语动词
【命题依据】 非谓语动词包括不定式、动名词、现在分词和过去分词等几种形式。它是中学英语语法中的重点和难点，也是历年高考题中的必考项目。单项填空题中平均每年有1-3题涉及该部分内容，常考考点主要为：动名词和不定式作宾语或宾语补足语的用法比较；现在分词和过去分词作定语和状语的用法比较；现在分词和过去分词的用法比较以及非谓语动词在特定语境中的考查。该项内容能考查考生在具体语言环境中理解句子结构、分析句子的逻辑主语的能力。
[例题1]_____ as the "first lady of speech", Dr, Lillian Glass is recognized as one of the world’s leading experts on communication skills.
A. KnowingB. Having known C. Known D. To be known
【解题关键】解答该题的关键在于根据句意，准确判断选项动词在句中所作成分。
【答案解析】该题考查过去分词在句中用作原因状语。根据句意及句子结构可知，句子的主语Dr, Lillian Glass实际上就是选项动词的主语，相当于As he is known as ...引导的原因状语从句，为被动结构，故选过去分词known。答案为C。
[例题2]-Why do you look sad?
-There are so many problems _____.
A. remaining to settle B. remained settling
C. remaining to be settled D. remained to be settled
【解题关键】 解答该题的关键在于要准确把握There be句子结构及系动词remain的用法。
【答案解析】remain 在There be 结构中用作后置定语，由于remain是不及物动词，故应用现在分词remaining，相当于定语从句that remains；动词settle置于remain之后，应用动词不定式的被动结构来表示动作还未完成。答案为C。
[例题3]At the end of 2004, there were around 6,000 foreign printing companies in China, _____ up around 4 percent of national total.
A. made B. to make C. making D. having made
【解题关键】 解答该题的关键是要理解选项动词与前面分句结构关系，并准确把握其主动与被动的意义以及动作的一般性和完成性。
【答案解析】该句考查分词在句中用作结果状语。make up为及物动词短语，在前一分句动作之后发生，根据句意，表示主动，故应选making用作结果状语，相当于并列句and it made 或定语从句which made 句型结构。答案为C。
[例题4]-The English exam is not difficult, is it?
-_____. Even Tom _____ to the top students failed in it.
A. Yes; belongs B. No; belonged C. Yes; belonging D. No; belonging
【解题关键】 解答该题的关键是要根据上下文情景正确判断"前否后肯"反意问句的回答以及对句子结构的准确理解。
【答案解析】根据答句句意"甚至最好的学生汤姆考试也失败了"可知，第一空应选Yes,(it is)意为"不，英语考试难"；第二空选项动词belong与to构成不及物动词短语，在句中用作定语，故应选现在分词belonging，相当于定语从句who belongs to ...,注意句子的主谓结构为Even Tom failed in it。答案为C。
[例题5]-We didn’t find the Blacks _____ the lecture.
-No one had told him about ____ a lecture the following day.
A. to attend; there to be B. attending; there being
C. attended;there be D. attend; there was
【解题关键】 解答该题的关键在于准确把握"感觉动词"的复合结构的运用以及介词后There be结构的使用。
【答案解析】第一空动词attend为及物动词，表主动，根据感觉动词find所跟复合结构，不可使用to attend，过去分词attended表被动，意义也不成立，可选用attending或attend，但根据句意，此处强调状态，故attending现在分词为最佳选项；第二空介词about 后应使用动名词形式there being。答案B。
[例题6]Only____ according to the directions can the medicine be quite effective.
A. taking B. taken
C. being taken D. having been taken
【解题关键】 解答该题的关键在于正确区分分词的用法。
【答案解析】根据句意可知，选项动词的逻辑主语the medicine与动词take之间为被动关系，实际上相当于一个时间状语从句only when it is taken...结构，故应选taken在句中用作状语。答案B。
[例题7] The man we followed suddenly stopped and looked as if____ whether he was going in the right direction.
A. seeing B. having seen C. to see D. to have seen
【解题关键】 解答该题的关键是准确把握连接词as if后非谓语动词的选用。
【答案解析】当as if后面直接跟一个动词时，常使用不定式to do来表示目的，相当于as if he were (was) to do sth说明动作的未完成性。答案为C。
[例题8]-Is there any possibility of the film____ in Paris International Festival?
-Not in the least, because audience generally think little of it.
A. trying out B. tried out C. to try out D. being tried out
【解题关键】 解答该题的关键是要正确理解介词后动名词的主动式与被动式的选用以及动名词与其逻辑主语之间的关系。
【答案解析】选项动词短语在句中用作介词of的宾语，应使用动名词形式，根据句意可知，介词of 后的名词the film为动名词短语try out的逻辑主语，且为被动关系，故应选用动名词的被动结构。答案D。
[例题9]-Hi, Mary. Would you like to go to the concert this evening?
-Sorry, Tom. ____ tomorrow’s lessons, I have no time to go out with you.
A. Not preparing B. Not having prepared
C. Not to prepareD. Being not prepared
【解题关键】 解答该题的关键是要准确区分非谓语动词作状语的意义及用法，以及否定副词not的位置。
【答案解析】根据句意可知，选项动词为原因状语，表主动，强调动作的完成性，相当于一个原因状语从句：As I haven’t prepared tomorrow’s lessons...故应选B(Not having prepared);选项A为现在分词，不表示完成的意思；选项C为不定式的否定结构表目的；选项D为被动结构，not应置于分词being前面，均不符句意。答案B。
[例题10]Every student in our class had an application form in his hand, but no one knew which office_____.
A. to send it to B. to send it
C. to be sent to D. to have it sent
【解题关键】解答该题关键是要注意疑问词后接不定式主动结构与被动结构用作宾语时的用法区别。
【答案解析】根据句意及句子结构可知，选项部分不定式与疑问词一起作为句子的宾语，在这一结构中，常用不定式的主动结构，可以转换为宾语从句：but no one knew which office he would send it to。注意send sth to sb/sp为固定短语，to为介词，不能省略。答案A。
[例题11]-O’Neal works hard.
-So he does. He is often seen _____ heavily before his teammates have even arrived at practice.
A. to be sweated B. sweated
C. be sweated D. sweating
【解题关键】 解答该题关键是要正确处理好"感觉动词、使役动词"主动形式与被动形式复合结构中动词的选用。
【答案解析】根据句子结构可知，感觉动词see用于被动结构，选项A、C不可以用于这一结构中；选项B为被动意义，不成立；只有选项D(sweating)现在分词与be seen构成复合结构，强调状态。答案为D。
[例题12]-How did you get in touch with Mrs. Green?
-Well, it seems to me that you’ve forgottenme her telephone number the other day.
A. to tell B. to have told C. telling D. being told
【解题关键】 解答该题关键是要在上下文语境中理解动词forget后接动名词与不定式的用法区别。
【答案解析】根据问话人的句意可知，"已与Mrs. Green取得联系"了。故回答部分说明"已经忘记了告诉电话号码这件事"，应该使用forget doing sth/having done sth "某事已做，但忘了"，forget to do sth意为"忘记要去做的事情"，强调动作还未发生。答案C。
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