2024届高考英语复习名词性从句：主语从句课件(共28张PPT)

2024届高考英语复习名词性从句：主语从句

课件(共28张PPT)

(共28张PPT)

Subject Clauses

主语从句

Everyday English

I am a slow walker, but I never walk backwards.

我走的很慢，但我从不后退。

Grammar

3. To find your way can be a problem.

2. Smoking is bad for you.

1. You are a student.

4. “How do you do ” is a greeting.

5 .What she said is not yet known.

6. That we shall be late is certain.

7. It is certain that we shall be late.

Subject（主语）

充当主语的句子叫做主语从句。

从属连词that, whether, if；

连接代词who, whoever, whom, what, whatever, whose, which；

连接副词when, where, how, why

【例句呈现】

观察下列例句，指出其中所包含的主语从句及引导词:

1. What is needed for a long trip is careful preparation.

该句中主语从句是__________________ _________，引导词为_____。

What is needed for a

what

long trip

2. That Jay Zhou will come to my city excites everybody.

该句中主语从句是_________________

______________，引导词为_____。

3. Whether we will travel abroad or not has not been decided.

该句中主语从句是_________________

__________________，引导词为_________。

That Jay Zhou will

Whether we will

come to my city

that

travel abroad or not

whether

4. Whoever knows the secret mustn’t tell others.

该句中主语从句是__________________

______，引导词为________。

5. It remains a puzzle why dinosaurs died out suddenly long time ago.

该句中主语从句是_________________

_______________________，引导词为_____。

Whoever knows the

whoever

why dinosaurs died

why

secret

out suddenly long time ago

当一个句子主语过长时，可以用it作形式主语，而把真正的主语或主语从句后移至句子末尾，以保持句子的平衡。

1. It is not clear how the accident happened.

2. It is not hard to understand why he did so at that time.

3. It is a pity that you should have made such a careless mistake.

4. It is reported that more than thirty deaths were caused in the accident. It is + n. + that从句

2. It is + adj. + that从句，常见此类形容词有：important, necessary, clear, certain, natural, strange, obvious, likely, impossible, possible等。

It is still a mystery what caused the accident.

It is very likely that they will hold a meeting.

It is obvious that he lost the game.

3. It+特殊动词+that 从句

It seems / appears ... that ... 似乎……

It happened (to sb.) that ...

（某人）碰巧……

It seems that he has seen the film.

似乎…

It happened that they were absent.

碰巧…

4. It + be + 过去分词+ 主语从句

It is said / reported / believed / suggested / known / proved that ...

It is said that 据说…

It is known to all that.众所周知…

It is decided that… 据决定

It is believed that… 据认为/人们认为

what引导名词性从句时在从句中充当句子成分,如主语,宾语,表语,而that则不然,它在句子中只起连接作用。例如：

(1) What you said yesterday is right.

(2) That she is still alive is a puzzle.

What 与that 引导主语从句

(1) What you lack is self-confidence.

译为：_________________________

你所缺乏的是自信。