题目内容
14.If water becomes increasingly scarce in decades ,water shortage will become a hot issue all over the world.( )A. | coming | B. | having come | C. | to come | D. | to be coming |
分析 如果水在接下来的几十年变得不断稀缺,那么水资源短缺将成为全世界的热点问题.
解答 答案:C 句中come是修饰名词decades,作后置定语;句意表达的是未来的几十年,未发生的动作,要用动词不定式;D项是不定式的进行式,表示将来一定会发生的动作,通常表达承诺,不符合句意.故选C.
点评 动词不定式是非谓语动词是一种,表示未发生的动作,用法较多.常用来作定语,主语,宾语,补语,状语等.本题中用来作后置定语.
练习册系列答案
相关题目
4.With the rapid development of medical science,we ___ more new drugs used in the treatment of cancer.( )
A. | see | B. | had seen | C. | will be seeing | D. | would see |
5.-How do you like our city?
-It has changed beyond all ____ in the past 20years,a completely new one in front of me.( )
-It has changed beyond all ____ in the past 20years,a completely new one in front of me.( )
A. | realization | B. | description | C. | expression | D. | recognition |
2.-Now some parents deny to their children,and have become their slaves.
-But this problem does not cause concern of the whole society.( )
-But this problem does not cause concern of the whole society.( )
A. | nothing | B. | everything | C. | something | D. | anything |
9.Students in English-speaking countries usually address their man teacher"sir",but _______ their woman teacher"madam".( )
A. | seldom they address | B. | do they seldom address | ||
C. | seldom do they address | D. | they seldom do address |
19.I admire my English teacher.I can remember very few occasions she stopped working because of ill health.( )
A. | that | B. | when | C. | where | D. | which |
20.Mum,I arrived at the train station twenty minutes ago,but Betty up yet.( )
A. | hadn't turned | B. | won't turn | C. | hasn't turned | D. | didn't turn |