高中语法专练：v. what从句作主语

v. what从句作主语

1. 一般来说，按照语法一致原则，谓语动词要用单数形式。

What he said is true.

他说的话是真的。

What's needed is act.

所需的是行动。

2. what从句作主语，有时候主句的谓语动词be与表语的数保持一致。如果主句的表语是复数，主句谓语动词用复数，主句的表语是单数，谓语动词就用单数形式。

What they want are books .

他们想要的是书本。

What they want is money.

他们想要的是钱。

What he wants to see is your manager.

他想见的人是你们经理。

专项练习

1. What we lack today _______ steel and concrete.

A. was

B. were

C. are

D. is

2. What they have done _______ useful to the people.

A. are considered

B. is considered

C. have been considered

D. will be considered

3. What the man said under the oath _______ by several other witnesses.

A. was disputed

B. were disputed

C. disputed

D. be disputed

4. What I'm in need of _______ money.

A. is

B. are

C. was

D. were

5. What he wants to get _______ some books.

A. is

B. are

C. was

D. were

答案速查　1-5　CBAAB