简单句和复合句

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1、简单句和复合句 概述：英语书面语中按句子结构划分，有且仅有三种句子：简单句、并列句和复合句。 一、简单句只包含一个主谓结构的句子叫简单句。1 . He works in a big company.2 . She is a kind girl.3 . Ann eats junk food twice a week. 二、并列句由并列连词把两个或两个以上的简单句连在一起的句子叫并列句。1 .It is hot in summer here, but its not cold in winter.2 .The sky was cloudless, and the sun was shining b

2、rightly.3 .We love peace, but we are not afraid of war.4 .The shops were closed so I didnt get any milk.5 .Dont drive so fast or you will have an accident. 常见的并列连词：1 .并列关系：and, as well as, not onlybut also2 .转折关系：but3 .因果关系：so, for4 .选择关系：or, eitheror5 .对比关系：whileAt school, some students are active

3、while some are shy. 三、复合句由一个主句和一个或一个以上的从句构成的句子，叫复合句。主句和从句都有主语和谓语，但是从句只是主句的一个成分，离开主句不能独立存在。根据从句在主句中担任的成分不同，从句可分为：名词性从句（主语从句、宾语从句、表语从句和同位语从句）、定语从句和状语从句。 e.g.Its important that we study English well.主从He said that Li Ping coulndt come here. 宾从It seems that the weather could be fine. 表从The plan that wel

4、l start out next week hasnt been decided. 同位语从句1 .名词性从句 2 . 时间状语从句引导词有 when, as, while, as soon as, before, after, since, till/untile.g. _ he was young, he was interested in science.When 3 . 目的状语从句引导词有so that, in order thate.g. Speak up, _ we can follow you._ he can get to school earlier, he didnt h

5、ave breakfast.so thatIn order to 3 .结果状语从句（引导词：so that; so.that.; such. that.）He got up _ early _ he caught the first bus.Its _ a good chance _ we must not miss it.The boy ran very fast _we couldnt follow him.so thatsuch thatso that 4 .条件状语从句：引导词（if 、unless）_ it is fine, well set off tomorrow._he comes, I wont go home. IfUnless 1 .What he said just now made me happy.2 .He said that he liked that book.3 .This is because you are too careless.4 .A doctor is a person who looks after peoples health.5 .He often helps others though he is not rich.Practice