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1、初中英语语法知识连词一、并列连词1.并列关系的and和，又as well as也，和bothand既又.neithernor既不也不.(就近原则)Tom and Lily like drawing.Tom as well asLily likesdrawing.as well as就远原则就前原则I as well asmy classmates amgoing to Beijing tomorrow.2.转折关系but但是however但是，然而We all tired our best,however, we lost the game.We all tired our best,but
2、we lost the game.3.选择关系or或者eitheror或者或者;要么要么.(就近原则)Which do you like better English or Chinese?Either Mary or he is going to Paris. Only one person may go there.orShe likes playing football and playing the piano.She doesnt like playing football or playing the piano.否定句中表并列关系用orWhich do you prefer, E
3、nglish or Chinese?表示选择关系用orDont stay up, or you will be tired.or否则，要不然stay up熬夜祈使句+and/or+陈述句。and表示顺承关系“这样的话”or“否则，要不然”Hurry up,or you wont catch the early bus.快点，否则你不会赶上早班车。Hurry up,and you will catch the early bus. 快点，这样的话你就能赶上早班车。祈使句+or+陈述句=if引导的条件状语从句。Hurry up, or you will be late.If you dont hu
4、rry up, you will be late.whetheror not无论与否Whether you like it or not, you must do it.more or less或多或少or so大约，左右believe it or not信不信由你4.因果关系because因为because of因为，由于so所以英文中because/because of不能与so同时在一个句子中连用。He worked hard,sohe passed the exam.He was late,because ofthe heavy rain.He was late,becausethe
5、rain is heavy.because后跟完整句子。because of后跟名词代词短语（不完整的句子）二、从属连词从属连词+从句宾语从句状语从句宾语从句that/if whether/ wh- how-让步状语从句Although/ thought/even if/even though等词引导的让步状语从句不能与but连用。（虽然.但是.尽管.）Although he is tired, he is still practicing the piano.He is tired, but he is still practicing the piano.notuntil直到才.He didnt leave the classroom until he finished his homework.条件状语从句主讲从现主句用一般将来时，从句用一般现在时 主句用过去将来时，从句用一般过去时if如果as long as只要If it doesnt rain，we will go to the park tomorrow. 从句 主句2