2021中考英语必背知识点汇总

英语知识点是必须掌握的， 下面学好网小编就大家整理一下2021中考英语必背知识点汇总，仅供参考。

复合不定代词

由some, every, no, any分别与one, thing和body组合而成的代词, someone, something, somebody;everyone, everything, everybody;no one, nothing, nobody; anyone, anything, anybody

1、由every构成的不定代词大多具有“复数”的含义, 但并不能因此而将其用作复数, 因为此类词更强调个体, 使用时仍应以单数对待

Eg: Every student is trying their best to achieve high scores in the exam.

2、由no构成的不定代词表示的是一种否定意义, 作主语时, 谓语动词多用单数形式

Eg: Nothing is impossible if you put your heart in it.

英语语法与难点

1、 as…as…结构：你和汤姆是一样好的孩子。

You’re a boy as good as Tom.=You’re as good a boy as Tom.

2、 (1)too…to与 so…that sb. can’t…的句型转换：前者为简单句，主语只有一个，而后者为复合句，主语有两个，试比较：

The man was too angry to be able to speak.

The man was so angry that he wasn’t able to speak.

(2) too…to…与 not enough to句型的转换：

He is too young to get married.=He is not old enough to get married.

The book is too difficult for me to read.=

The book is not easy enough for me to read.

3、 形容词原级表示比较级含义：

约翰不象迈克那么苯。

John is not so stupid as Mike.

John is less stupid than Mike.

John is cleverer than Mike.

4、 用比较级表示比较优级：约翰是班里比较高的男生。

John is taller than any other boy in the class.

John is the tallest boy in the class.

5、 the more….. the more….表示“越……越……”:

The more books you read, the wider your knowledge is.

The more food you eat, the fatter you are.

相互代词

表示相互关系的代词叫做相互代词。相互代词有each other 和one another两种形 式。在当代英语中, each other和one another没有什么区别。相互代词可在句中作宾语, 定语。作定语用时, 相互代词用所有格形式。

We should learn from each other / one another. (作宾语)

Do you often write to each other / one another? (作宾语)

We often borrow each other's / one another's books. (作定语)

The students corrected each other's / one another's mistakes in their homework. (作定语)

批注：这类代词的考查一般会在翻译中出现较多, 学生只要能知道常见的一些短语的意思即可, 比如help with each other 互相帮助， learn from each other互相学习， understand each other互相理解。