2014年外研版英语选修七：module 2 知识点(2)含答案(12)

二、主语从句的易混点

1．混淆that与what

that引导主语从句时，是连词，在从句中不作成分；what是连接代词，在从句中作主语、宾语、表语。

That the earth turns around the sun is known to all. (that只是引导从句，在从句中不作成分)我们都知道地球围着太阳转。

What will happen to the world is difficult to predict.

(what在从句中作主语)

世界将发生什么事情是难以预测的。

2．混淆which与whichever，who与whoever，what与whatever

which，who，what都含有一定的疑问，因此它们作为疑问代词。whichever，whoever，whatever分别表示“无论哪一个，无论谁，无论什么”，表示一种陈述，不含疑问的语气。whoever，whatever分别相当于the person who/anyone who...与any thing/the thing that。

Whatever I have is yours.

我的东西都是你的。

What made her sad was not known.

不知道什么使她伤心。

三、主语从句的难点

1．由连词wh­引导的主语从句中，从句可放在句首，也可以用it作形式主语，把从句放在句末。

Whether he will be punished is not known.＝It is not known whether he will be punished.

他是否会受到惩罚还不知道。

2．主语从句中的虚拟语气

在“It＋be＋形容词＋that从句”句型中，如果形容词为necessary，important，strange，natural等时，从句谓语动词常用“(should＋)动词原形”。

It is necessary and important that one(should)master the skill of operating computers so as to meet the need of a job.

为了满足工作上的需要，掌握电脑操作技巧是很有必要并且是很重要的。

在“It＋be＋过去分词＋that从句”句型中，如果过去分词为suggested，advised，ordered，requested，required等时，that从句谓语动词使用“(should＋)动词原形”。

It is suggested that the sports meeting (should) be put off.

有人建议推迟举行运动会。

高考直击

(1)(2014·江苏改编)—What a mess! You are always so lazy!

—I'm not to blame, mum. I am ________ you have made me.

答案：what 本题考查表语从句。——这么乱！你总是这么懒！——妈妈，要怪也不应当怪我啊。我这么懒也是你娇惯出来的。言外之意是，“You made me what I am.”。

(2)(2014·四川改编)Grandma pointed to the hospital and said, “That's ________ I was born.”

答案：where 此处考查的是名词性从句中的表语从句。句意：奶奶指着那个医院说：“那就是我出生的地方。”

(3)(2014·北京改编) The best moment for the football star was ________ he scored the winning goal. 答案：when 本题考查表语从句。句意：对于一个足球明星来说，进球得分的时刻是最好的时刻。

(4)(2014·陕西改编)________ the delayed flight will take off depends much on the weather.

答案：When 考查名词性从句。句意：延误了的航班何时起飞主要取决于天气。所填词引导主语从句，在从句中做时间状语，用when。

用合适的连接词填空

(1)It is by no means clear________ the president can do to end the strike.

(2)It doesn't matter ________ you pay by cash or credit card in this store.

(3)It suddenly occurred to him ________ he had left his keys in the office.

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