【常考句型】（17）be of+抽象名词/表达做某事有困难句型/否定前移句型

1.在“be of+抽象名词”句型中，常见的抽象名词有value, importance, use, interest, significance；在这些抽象名词前面可以加little, some, any, no, great等限定语。

例This invention is of great value to mankind. 这项发明对人类很有价值。

The decision is of great importance. 这个决定很重要。

拓be of+抽象名词= be+抽象名词的形容词：

The decision is of great importance.=The decision is greatly important. 这个决定很重要。

2....have difficulty (trouble/a hard time) (in) doing sth. 做某事有困难

例People from the two countries do not have any difficulty in understanding each other. 来自那两个国家的人们在相互理解上是没有任何困难的。

考I had great difficulty ______ the suitable food on the menu in that restaurant.（上海高考）

A. find

B. found

C. to find

D. finding

选D。句意：我在那家餐馆的菜单上很难找出适合的食物。此处考查have difficulty (in) doing sth.这一句型，difficulty后面应该使用动名词形式，故本题应选D。

3.含有宾语从句的主句的谓语动词为think, believe, imagine, suppose, consider, expect, guess等，并且主句的主语是第一人称而且为一般现在时，从句的否定词一般要转移到主句上来，其反义疑问句一般与宾语从句一致。

例I don’t think he will come this afternoon. 我认为他今天下午不会来。

I don’t believe that man is killed by Jim, is he? 我认为那个人不是吉姆所杀的，是不是？

EXERCISE

1.The suits are ______ and are worth ______.

A. of great quality; to buy

B. great quality; to buy

C. of great quality; buying

D. great quality; buying

2.The two rooms are ______ the same size.

A. at

B. for

C. on

D. of

3.I wonder what trouble he had ______ the plan.

A. to carry out

B. carrying out

C. carried out

D. with carrying out

4.I don’t think David could have done such a stupid thing last night, ______?

A. did he

B. didn’t he

C. do I

D. don’t I

5.Mrs. Black doesn’t believe her son is able to design a digital camera, ______?

A. is she

B. isn’t she

C. doesn’t she

D. does she

答案

01-05 CDBAD