名词性从句教师版

名词性从句复习学案

一、基本概念：

1. 名词性从句相当于名词，主要有：主语从句、表语从句、宾语从句和同位语从句。

2．名词性从句的引导词有：

that, whether, if (一般是宾语从句)，as if(表语从句)，who, whom, whose, what, which, when, where, why, how,以及由how组成的词组，如：how many, how long, how far

3.语序

名词性从句都用陈述语序；但what is the matter和what is wrong总用疑问语序，但时态要和主句搭配。

e. g. : He asked me what was the matter.

两组需要注意的连接词:

①that/what:

that和what都可以引导名词性从句，但____that_____是连接词，本身无词义，仅起连接作用，不在从句中担任任何成份；____what_____是连接代词，不仅引导名词性从句，而且在从句中充当一定的成份，如主语、宾语或表语。

.: That he stole a bike was true.

The important thing is what you do, but not what you say.

【练一练】:

_______ we can't get seems better than _______ we have.

A. What; what

B. What; that

C. That; that

D. That; what

② whether/if

whether和if均可引导动词后的宾语从句，常可互换，除此之外:

a. 在介词后面只能用whether，不能用if。

.: This depends upon whether we are determined to do it.

b. 在动词不定式之前，只能用whether，不能用if。

.: He doesn't know whether to stay or not.

c. 引导主语从句，表语从句，同位语从句时只能用whether。

.: ① It is unknown whether he will come. 他是否来还不知道。

② The question is whether they can take our advice.

③ The question whether he'll come is unknown.

d. 与or not 连用，只能用whether

.: I don't know whether or not they will come for our help.

e. 在及物运动discuss后的宾语从句中，只能用whether，不能用if。

.: We discussed whether we should make a change in our plan.

③ whether/that

doubt用于肯定结构时，后面用that引导名词性从句；用于否定结构或疑问结构时，后面用whether引导名词性从句。be sure 用于肯定句或疑问句时，后接that引

导的名词性从句；用于否定句时，后接whether引导的名词性从句。

.：We doubt whether he can win the game.

【练一练】:

1.What the doctor is uncertain about is ______ my mother will recover from the

serious disease

soon.

A. when

B. how

C. whether

D. why

2. Elephants have their own way to tell the shape of an object and ______ it is rough or smooth.

A. 不填

B. whether

C. how

D. what

3.The question is ____the film is worth seeing.

A. if

B. what

C. whether

D. how

4.______ his dream of going to college will come true is uncertain.

A. That

B. Whether

C. If

D. Even if

④who和whoever

名词性从句中，who含有疑问语气，而whoever强调任意性。

I don’t know who is suitable for the position.

You may select whoever you think is suitable.

⑤Whoever,whatever 和whichever

Whoever,whatever和whichever既可引导名词性从句，也可引导状语从句。

判断下列句子是哪种从句。

Whoever says that is a liar.

She can marry whoever she chooses.

Whoever says so, it is wrong.

Whatever he does is right.