仁爱英语八下Unit8 topic 2 知识点

Unit8 topic 2 知识点

语法：

结果状语从句：表示主句的动作所引起的结果。

1. 由表示“如此……以致……”的“so... that...”和“such... that...”引导结果状语从句，其中的such 后接名词；so 后接形容词或副词，具体的搭配形式是：such … that常用句型结构：

（1）such +形容词+名词复数形式+that从句；

（2）such +a/an +形容词+名词单数形式+ that从句；

（3）such +形容词+不可数名词+that从句。

so … that常用句型结构：

(1) so +形容词/副词+ that从句；

(2) so +形容词+ a/an+名词单数形式+ that从句；

(3) so +many /few/+可数名词复数形式+ that从句；

(4) so +much/little +不可数名词+ that从句

She is such a good teacher that all of us love and respect her.

They are such interesting books that I want to read them once more.

It was such bad weather that I had to stay at home.

He ran so fast that I couldn?t catch up with him.

I am so sleepy that I can…t keep my eyes open.

He has so much money that he can buy what he wanted.

There is so little water that I can't drink any more.

2. so that 可引导结果状语从句与目的状语从句

引导结果状语从句时，从句中一般不用can和may等词，在so that前可以用逗号，意思是“因此;所以，以致”。

引导目的状语从句时，表示“以便；为了”，从句中常使用can /could /may /might /will /would /should等情态动词或助动词；

例如：

He raised his voice，so that everyone heard him．

他提高了声音，结果大家都听见了。（结果状语从句）

He got up very early so that he could catch the train．

他起得很早以便能赶上火车。（目的状语从句）

3.注意：

so/such...that也可变成：... so that ...(以至于)，引导结果状语从句。例如：

1.He got up so late that he missed the bus.

He got up late so that he missed the bus.

2.She is such a good student that everyone likes her.

She is a good student so that everyone likes her.

so...that可变成：.enough to...”或“...too...to”句型

1.当主句和从句的主语一致，且that从句是肯定句时，可用“enough to do sth.”来转换。例如：

The man is so strong that he can lift the heavy box.

The man is strong enough to lift the heavy box.

2. 当主句和从句的主语不一致，且that从句是肯定句时，可以用“enough for

sb. to do sth.”来替换，但须注意不定式的宾语要省略。例如

The question is so easy that I can work it out.

The question is easy enough for me to work out.

3. 当主句和从句的主语一致，且that从句是否定句时，可以用“too...to”来替换。例如：

The girl is so young that she can't dress herself.

The girl is too young to dress herself.

4. 当主句和从句的主语不一致，且that从句是否定句时，如果要用“too...to...”

替换“so...that...”，则用介词for引出动词不定式的逻辑主语，可以用“too...for sb. to do sth.”来替换，注意不定式的宾语要省略。

The bag is so heavy that she can't move it.

The bag is too heavy for her to move.

2. 感叹句：

（1）感叹句用于表示说话时的一种较为强烈的感情。如：喜悦、赞叹、惊异、愤怒、厌恶等。感叹句的构成为“感叹部分+陈述部分+（主语+谓语）”，感叹部分由感叹词引导，陈述部分为整个感叹句的主语和谓语，句尾要用叹号“！”，读时要用降调。如：

What a nice day it is ! 多好的天气！

What a good boy he is ! 多好的男孩！

How silly you are ! 你真傻！

How beautiful it is ! 它多美啊！

（2）感叹句的四种形式：

What +a(an)+名词单数+主语+谓语

What +形容词+可数名词复数/不可数名词+主语+谓语

How +形容词+主语+be

How +副词+主语+动词

（3）口语中，what或how引导的感叹句可省略主语+谓语。如：

What an interesting book! /How interesting!

( 4) what 与how引导的感叹句之间的转换。

What a beautiful girl she is!=How beautiful the girl is!

How delicious the food is!=What delicious food it is!