初三英语知识点总结
1.What/ how about +doing sth? 如:What/ How about going shopping?
2.Why don’t you + do sth?如:Why don’t you go shopping?
3.Why not + do sth?如:Why not go shopping?
4.Let’s + do sth?如:Let’s go shopping
5.Shall we/ I + do sth.?如:Shall we/ I go shopping?
主动语态和被动语态1.主动语态是表示主语是谓语动作的使动方的语态。在主动语态中,谓语的动作源自主语,而施加于宾语。
2.被动语态)是动词的一种形式,用以说明主语与谓语动词之间的关系。
3.主动语态和被动语态的区别
在主动语态中,主语后面接人(be +动词原型);被动语态(be+动词过去分词)。
举例:
(1)主动语态:The snowslide killed him. 雪崩害死了他。
被动语态:He was killed by the snowslide. 他死于雪崩。
(2)主动语态:We use electricity to run machines. 我们用电力来开动机器。
被动语态:Electricity is used to run machines. 电力被我们用来开动机器。
(3)主动语态:Bell invented the telephone in 1876.贝尔于1876年发明了电话。
被动语态:The telephone was invented by Bell in1876.电话是贝尔于1876年发明的。
条件状语从句1.由引导词if或unless引导的状语从句叫做条件状语从句。
2.if 引导的条件句有真实条件句和非真实条件句两种:
真实条件句
如:If it rains tomorrow,we won’t go on a park
非真实条件句是虚拟语气的一种,表示与事实相反,如:If I were you,I would go with him.
so/as long as只要,由as (so) long as,in case引导。
So long as you’re happy,it doesn’t matter what you do.只要你高兴,你做什么都没有关系。
You may borrow my book as long as you keep it clean.只要你保持书的清洁,你就可以把我的书借去。
Take your umbrella in case it rains.带着你的伞吧,以防下雨。