1、省略句 （You）Sit down,please.(你你)请坐。请坐。（I）Dont know.（我）不知道。（我）不知道。（You come）This way,please.请你走这边请你走这边。-Are you thirsty?-Yes,I am(thirsty).【探究总结一】(1)祈使 句的主语通常省略。(2)口语中，在不影响句意的前提下，主谓、主语和部分谓语或者 表语 也可省略。She came back and(she)turned on the TV.她回来了，然后打开电视。I came at eight but Henry(came)at night.我8点来，但是亨利9点来。
2、The news made me angry,while(the news made)my sister happy.这个消息使我生气，然而却让我妹妹高兴。主语重复谓语重复主谓重复【探究总结二】在由并列连词 and ，but ，while 等连接的并列句中，后面的分句中可以省略与前面分句中相同的成分相同的成分，以避免重复。吉米从自行车上跌下来，但是(他)没有受伤 Jimmy fell off his bike,but .皮特通过了考试，而比尔没有（通过考试）。Peter passed the test but .主语重复wasnt hurt 谓语，宾语重复Bill didnt Mr.Brown
3、 has some difficulty(in)adapting to the new climate.布朗先生不大容易适应新的气候。He spent four hours(in)going over his lessons.他花了四个小时复习功课。【探究总结三】一些与动词 、名词 或形容词搭配的介词常常省略。常见的有：have difficulty/trouble(in)doing sth.做某事有困难 be busy(in)doing sth.忙于做某事 spend some time (in)doing sth.花费时间做某事 stop/prevent sb.(from)doing st
4、h.阻止某人做某事 There is no sense/point(in)doing sth.做某事没有意义。It is no good/use(in)doing sth.做某事没有用。He may leave if he wishes to(leave).他可以走，如果他愿意(走)的话。(1)want,wish,expect,hope,try,forget,would like等后面出现与上文相同的不定式时，常保留不定式符号to,而省略后面的内容。选择题2 I want to call on my teacher and ask him some questions.我想去拜访我的老师并问他
5、一些问题。I havent decided to go home or to stay at school this summer.我还没有决定今年夏天是回家还是留在学校。(2)两个或两个以上的不定式表示 时，第一个带 to,后面的省略后面的省略to;但如果两个不定式表示 ，则则to不可省略不可省略。并列关系对比关系I want to call on my teacherI want to ask him some questions.I havent decided to go home.I havent decided to stay at school.You cant see peop
6、le starve without trying to help them,can you?你不会坐视人们挨饿而不想办法去帮助他们的，对吧?See sbdoing sth do sth 已经省略了 to感官动词(词组）等和使役动词 后面作宾补的不定式要省略to,但此类动词的 的to不可省略。see,look at,hear,listen to,notice，watchmake,let,have等The boy was made to go to bed early.那个男孩被迫早睡。被动语态 When(she was)young,she began to learn to play the p
7、iano.当她年幼的时候，她开始学习弹钢琴。Send the goods now if(they are)ready.如果货物准备好了，现在就发货。He is a good man,though sometimes(he is)rather dull.他是一个好人，虽然有时很迟钝。时间状语 当的时候条件状语 如果让步状语 虽然，尽管【探究总结六】在 等引导的状语从句中，若谓语部分含有be动词，而从句主语又和主句主语相同或从句主语为it,则从句中的主语和be动词常一起省略。when,while,whenever,if,until,unless,though,although,as if,as though,whether
