八上Unit4-Grammar.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,8A Unit 4,Do it yourself,Grammar,Imperative sentence(,祈使句,),-,用于表示向对方提出请求、命令、劝告等,祈使句的肯定形式：,-,“,动词原形,”,开头,(,主语,you),通常被省略,.,例：,Please,fix the shelf for me,(,为我修理架子,),please.,Put up,(,张贴,)a picture on the wall,please.,Paint,the walls,blue,.(,将墙壁涂成蓝色,),祈使句的否定形式,-,“,Dont+,动词原形,”,开头,例：,Dont paint the cat.,Dont waste your money like that.,Dont touch the wet paint,please.,Finish exercises on P47.,How to make cards,_ out pieces of card with a pair of scissors.,_ some words or a sentence on each card.,_ a picture about the words or sentence on the other side of the card.,_ at the picture and _ to say what is on the other side.,Please_ up._ trying and you will find you can remember things better.,Cut,Write,Draw,Look,try,dont give,Keep,You have got a cold(,感冒了,).,You,should go,to see the doctor.,You,had better go,to see the doctor.,should,情态动词,用于表达“,建议、或职责,”，意为“,应该,”。意思与,had better,相近，但语气比,had better,弱一些。,陈述句：,should+,动词原形,例：,We should do exercise every day.,疑问句：,should,提前,例：,-Should you do exercise every day?,-Yes,we should./No,we shouldnt.,否定句：,should not/shouldnt+,动词原型,例：,We shouldnt do exercise every day.,had better,情态动词表示一种建议和劝告，意思是“,最好,”,、“,还是,好,”。,人称和数的形式：,had better,中,had,无人称、数和时态的变化。,缩写形式：,had better,可以与作主语的人称代词缩写。,如：,Id better,，,Youd better,等。,肯定句形式,：,“,主语,+,had better+,动词原形,+”,例：,Its raining outside.,Youd better bring,your raincoat,外面在下雨，你最好穿上雨衣,。,否定句形式：,“,主语,+,had better not+,动词原形,+”,例：,You,had better not wake,me up before 6 a.m.,六点钟之前你最好不要叫醒我。,一般疑问句形式,:,Had+,主语,+better+,动词原形,+,？,例：,-,Had,we,better leave,early?,我们是不是最好早些离开？,-,Yes,we,d,better,./No,we,d better not,.,不，我们最好不要早离开。,特殊疑问句形式：,“,疑问词,+had+,主语,+better+,动词,原形,+?”,例：,What,had,we,better do,?,我们最好做些什么呢？,Finish exercises on P48.,Homework:,Finish off the exercises.,