八年级语法总结

八年级英语（下）语法知识总结

一、“系动词+形容词”系表结构

1. 表示状态的系动词：be( is, am, are, was, were)，look(看起来), sound（听起来）, taste( 尝起来)，smell(闻起来)，fell(感觉，摸起来), seem(似乎)，keep(保持), Stay（保持）。

I am fine. 我很好。 You look excited. 你看起来很兴奋。Who cooked the chicken? It _______ so nice.--- My mom. A. looks B. fees C. tastes D. sounds

注：seem 好像似乎，其用法为：

Seem+ 形容词如：You seem happy.

Seem + to do sth. 如：They seem to know everything. Seem + that 宾语从句如：It seems that they know everything.

2. 表示转变或结果的系动词：get, turn, go(变), become, grow. 如: The weather is getting warm. 天气正变暖。

The food goes bad. You can`t eat it. 这食物变坏了，你不能吃.

二、由because引导的原因状语从句

Because 意为因为，由于。 Because 引导的句子通常用来回答why 引导的问句或用来引导原因状语从句。

如：Because it was wet, he took a taxi.

Why are`t you going with us? --- Because I have a bad cold. 练习题：He didn`t go to school______ he had a headache.

A. so

B. because

C. but

D. that

He cried because his dog died.( 对划线部分提问)

_______ _______ he cry?

三、由as…as…, not as/ so…as…构成的同级比较

1.“A+动词+as+形容词/ 副词原级+ B “意为A和B一样…She is as active as her friends. 她和她的朋友一样活跃。He jumps as high as Jim. 他和吉姆跳得一样高。

2. A+ 动词+not as/ so + 形容词/ 副词原级+ as+ B “A不如B….”

= A+ 动词+形容词/ 副词比较级+than + B “ A比B…”

Jack doesn`t run as fast as Jack.=Tom runs faster than Jack. 练习题：Maria is braver than Helen.( 同意句转换)

Maria ______ ______ ______ ______ Helen.

四、使役动词make, let 的用法。

Make+ 宾语+ 形容词/ 名词/ 动词原形

The game made them excited.

The students make him monitor.

Sad movies always makes Jane cry.

练习题: He made us _______.

A. laugh

B. to laugh

C. laughing

Let sb.(not) do sth.

My mother lets me play computer games.

My mother doesn`t let me play computer games.

五、动词不定式

He decided to live in France. decide (not) to do sth. 不定式做宾语

Your task is to find out the cost by train. 不定式作表语It is hard to answer your question. 不定式作主语

= To answer your question is hard.

He ran so fast to catch the first bus. 不定式作目的状语不定式短语

Invite sb to do sth tell sb(not) to do sth ask sb (not) to do sth

Advise sb to do sth 建议某人做某事 the best way to do sth 等

练习题：Shopping with me?

---I`d love to. _____I have a lot of clothes_____.

A. and; to wash

B. and; washing

C. but; to wash

D. but; washing

________ ( save) people is not only my duty but also my task.

六、由after, before, when, not…until, till, while, as, as

soon as 引导的时间状语从句。一般情况下，主句是一般将

来时，从句用一般现在时；主句是过去时态，从句也要用相

应的过去时态。

While 引导的时间状语从句，用于进行时

如: The accident happened while we were having dinner.

It began to rain when he got home.