1、1.He prefers _.A. to write his letters rather than dictating themB. to write his letters rather than dictate themC. writing his letters rather than dictate themD. writing his letters rather than have dictated them解析：句型搭配：prefer to do sth rather than do sth 或者 prefer doing to doing 2.The three men tr

2、ied many times to sneak across the border into the neighboring country, _ by the police each time.A. had been captured B. only to be capturedC. being always captured D. unfortunately captured解析：only to do ; only to be done表示結果通常出現在句尾位置，用作結果狀語，only加重語氣，一般表示令人失望的結果，意思是“結果卻”。3.The minister of Finance i

3、s believed _ of imposing new taxes to raise extra revenue.A. that he is thinking B. to be thinkingC. that he is to think D. to think解析：句型搭配：sb/sth is believed/said/reported to do/ to be doing sth.或者 It is said/believed/reported that（后跟從句）.To be thinking of意思是據說正在考慮.4.They are going to have the servi

4、ce man _ an electric fan in the office tomorrow.A. install B. to install C. to be installed D. Installed解析：have sb do sth 要。做什么 （有強制意味）have sb doing sth 使。一直。（常和時間段狀語連用）have sth done 讓.被做5.Jim is sorry _ so impolite to your guest last Saturday.A. to be B. having been C. being D. to have been解析：to ha

5、ve done的第一種用法表示發生在謂語動作之前的動作。例如：He seems to have caught a cold. 他似乎感冒了。6. The second book was _ by August 1952, but two years later, the end was still nowhere in sight.A. completed B. to have completedC. to complete D. to have been completed解析：to have done：第二種用法表示“計劃或者安排好的事情，在實際中沒有能夠實施”。例句：I meant to

6、 have told you about it, but I forgot to do so.7.Some people viewed the findings with caution, noting that a cause-and-effect relationship between passive smoking and cancer remains _.A. to be shown B. to have shownC. to have been shown D. being shown解析：有的人仍對這個發現持謹慎態度，（因為）他們注意到吸煙和癌癥之間的因果關系仍有待研究。Rema

7、in的其中一種用法：指某事“尚待、有待于以后被處置”，后面常接不定式的被動形式，表示主語是不定式的承受者。 例句：Many problems remain to be solved. 有好多問題尚待解決。 It remains to be seen whether you are right. 你是否正確，以后見分曉。 8.Id rather read than watch television; the programs seem _ all the time.A. to get worse B. to be getting worseC. to have got worse D. gett

8、ing worse解析：不定式表示時間與主要動詞的關系：在主要動詞發生前，不定式用完成體；在主要動詞后面發生，用一般式；與主要動詞同時發生，用進行體9.The Clarks havent decided yet which hotel _.A. to stay B. is to stay C. to stay at D. is for staying10._ him tomorrow?A. Why not to call on B. Why dont call onC. Why not calling on D. Why not call on解析：句型搭配：why not do sth.或者

9、 why dont sb do sth.11.Could you find someone _?A. for me to play tennis withB. for me to play tennis C. play tennis withD. playing tennis with解析：根據句意，如果是選D意思則是：你可以找到/發現某人正在與（ ）打乒乓球嗎？所以語義不通。A的意思則是：你可以找到某人而已跟我一起打乒乓球嗎。Exercises1. Aids is said _ the number one killer of both men and women over the past

10、 few years in that region.A. being B. to be C. to have been D. having been解析：由句中的時間狀語“over the past few years”可知動作發生在謂語動作之前，故應用不定式的完成式作賓語。2. The team can handle whatever _.A. that needs handling B. which needs handlingC. it needs handling D. needs to be handled解析：whatever在后半個句子中充當了主語的成分，所以不需要再添加that

11、,it,which諸如此類的成分。Need+doing或者need to be done均可表示被動。需要被3. He resented _ to wait. He expected the minister _ him at once.A. to be asked , to see B. being asked, to seeC. to be asked, seeing D. being asked, seeing解析：resent+doing sth.而 expect+to do.4. The professor can hardly find sufficient grounds _ h

12、is argument in favor of the new theory.A. which to base B. on which to baseC. to base on which D. which to be based on解析：排除法：如果選擇CD則是誤以為此題考察定語從句，但是如果認為是定語從句，那么從句中which做了主語，從句卻沒有謂語,則說不通。To do身為不定式叫做非謂語，所以不能選CD。base是一個不及物動詞。on which是疑問代詞，which指代sufficient ground.其實就是The professor can hardly base his a

13、rguments on sufficient grounds in favour of the new theory5. The vocabulary and grammatical differences between British and American English are so trivial and few as hardly _.A. noticed B. to be noticedC. being noticed D. to notice解析：該句是簡單句，介詞短語between British and American English修飾differences。so .

14、 as to do sth是固定搭配，意思是“如此地.，以至于.”，其后的不定式短語作結果狀語。hardly = not，即其后為不定式的否定結構：so.as not to do sth主語differences和不定式動詞notice之間明顯為被動關系，所以答案選用不定式的被動結構：to be noticed6. The bank is reported in the local newspaper _ in broad daylight yesterday.A. to be robbed B. robbed C. to have been robbedD. having been robb

15、ed7. By the first decade of the 21st century, international commercial air traffic is expected _ vastly beyond todays levels.A. to have extended B. to be extendingC. being extending D. having been extended解析：由句中“By the first decade of the 21st century,”可知，動作發生在謂語動詞之前，所以選A。9. The information was later admitted _ from unreliable sources.A. that it was obtained B. that it has been obtainedC. to be obtained D. to have been obtained10. The local heal