Our task now is to develop our economy.我们的任务是发展经济.

有时两者都可以用,没有什么差别.

例如:What she likes is watching the children play.(=What she likes is to watch the children play.)她喜欢的是看孩子们玩.

词做表语

首先做一些练习

1.The situation is____(encourage).

2.The door remained____(lock)when he came again.

答案:1.encouraging 2.locked

总结:surprise,interest,excite,puzzle,disappoint,astonish,encourage,inspire,shock,move 等及物动词用做表语时,要看其与主语的关系。如果与主语为主动关系,则用-ing形式,表示主语的特征。如果是被动关系,用-done这种形式,表示主语的状态。

如:The news astonished us.这句话就表明了the news与astonish为主动关系。astonish与us为被动关系。那么就可以直接得出以下两个句子:

1)The news was astonishing.

2)We were astonished(by the news).

练习:

3.She looked_____(disappoint).

4.The news is quite___(astonish).

答案:3.disappointed 4.astonishing

有时候动词的过去分词作用在be动词之后,并非是被动语态,而是做表语表示事物存在的状态。如:

5.The bottles are broken.杯子都破了。

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