很明显这种破坏在未来会变得更加危险。

It is suggested that we ( should ) discuss the problem.gkstkgkstkgkstk.Com]

有人建议我们应该讨论一下这个问题。

It appears/seems that they will win the game.

他们似乎要赢得这场比赛。

2. While she was on earth she met the herd boy Niulang and they fell in love. 她在人间遇到了牛郎，两人相爱了。

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　　句中While she was on earth作时间状语，其中while表示"当......的时候"。

He fell asleep while(he was)watching TV.

他在看电视的时候睡着了。

Mary made coffee while her guests were finishing their meal.

客人们就要吃完饭的时候，玛丽去煮咖啡了。

while的不同含义：

(1)只要

While there is life, there is hope.

只要有生命就有希望。

(2)但是，可是，表对比转折

We know usually women stay at home and do all the housework while men go out to work.

我们知道，通常女人们在家里做家务，而男人们则外出工作。

(3)虽然，尽管

While I understand what you say, I can't agree with you.

尽管我明白你的话，但我还是不同意。 【名言警句】

The first step is as good as half over.

第一步是最关键的一步。

Sow nothing, reap nothing.

春不播，秋不收。

单项选择。

1. In some places women are expected to earn money _____ men work at home and raise their children.

A. but　　　　　 B. while

C. because D. though

2. ______ I accept that he is not perfect, I do actually like the person.

A. While B. Since

C. Before D. Unless

【答案】

1. B 2. A

【解析】

1. while在句中表示对比转折，意思是"但是，可是"。句意为，在某些地方，女人负责挣钱，而男人负责家务和孩子。

2. 这里的while表示让步，意思是"虽然，尽管"。句子的意思是，尽管我承认他不够完美，但是我确实很喜欢他这个人。

3. The country, covered with cherry tree flowers, looks as though it is covered with pink snow.

（节日里）整个国度到处是盛开的樱花,看上去就像是覆盖了一层粉红色的雪。

as though/as if 意为"好像"。

① 引导方式状语从句

She acted as though nothing had happened.

她装得好像什么事也没发生过似的。gkstkgkstkgkstkgkstk]

注意：当从句主语和主句主语一致，且从句谓语中含有动词be时， 可把主语和be一起省略。He looked about as though (he was) in search of something.

他四下张望, 好像在寻找什么。

② 引导表语从句

It looks as if it's going to rain. 看样子要下雨了。

③ as though和as if从句是用虚拟语气，还是用陈述语气，完全根据具体情况而定。如果从句表示的意思与事实完全相反，或者纯粹是一种假设，通常用虚拟语气。

The child talks as if she were an adult.

那孩子说话的样子好像她是个大人。

【名言警句】

There is nothing which has not been bitter before being ripe.

凡事在成熟前，都是有苦味的。

Teach others by your example. 以身作则。

Time and tide wait for no man. 岁月不待人。

用括号内所给单词的适当形式填空。

①The pencil looks as if it (break) with half of it in the glass of water.

②Li Ming speaks English very well as though he (be) an Englishman.

③It seems as if our team ______(be) going to win.

④ He talks about pyramids as though he ______(see) them himself.

【答案】

① were broken

② were

③ is

④ had seen

【解析】

① as if从句表示的意思与事实相反，应用虚拟语气。故填were broken。

② as though引导的从句意思与事实相反，故应用虚拟语气。填were。

③ as if"好像"。句意为，我们队好像要赢了。

④ as though从句表达的意思与事实相反，应用虚拟语气。故填had seen。句意为，他讨论金字塔，就跟他自己亲自见过一样。