人教版英语八年级上册unit1 grammar.ppt

Unit1,Wheredidyougoonvacation?-grammar,一般疑问句,一般疑问句有三类：以be动词，助动词或情态动词开头。Eg.Isyourfatherateacher？DoesTomlikeanimals？CanhespeakEnglish？,如何将陈述句变成一般疑问句,看句中是否有be动词和情态动词，如果有，将其提到句首即可。Yourfatherisateacher.Isyourfatherateacher?Theyarehappy.Aretheyhappy?HewillgotoShanghai.WillhegotoShanghai?HecanspeakEnglish.CanhespeakEnglish?,2.如果句子中没有be动词或情态动词，则根据谓语动词的形式借助do的相应形式放在句首,并且谓语动词改为原型。,Theygotoschoolbybike.Dotheygotoschoolbybike?Tomgetsupat6:30everyday.DoesTomgetupat6:30everyday?Thestudentssawafilmyesterday.Didthestudentsseeafilmyesterday?,注意事项：,如果陈述句中有第一人称，变问句时最好变为第二人称。Iusuallyhavelunchatschool.Doyouusuallyhavelunchatschool?Myfatherisplayingchess.Isyourfatherplayingchess?,2.如果陈述句中有some，则变问句时要变成any,Thereissomewaterinthebottle.Isthereanywaterinthebottle?Ihavesomebooks.Doyouhaveanybooks?,一般疑问句的回答一般疑问句采用简短回答，共由三个部分组成。,1231第一部分不是yes就是no2第二部分问谁答谁，即答语中的主语和问句的主语一样Doesshecleanherroomeveryday？Yes,shedoes./No,shedoesnt.IsAnnasfatheradoctor?Yes,heis./No,heisnt.,注意事项：,如果主语是this或that，回答时主语用it代替Isthisanapple？Yes,itis./No,itisnt.如果主语是these或those，回答时主语用theyAretheseapples？Yes,theyare./No,theyarent.,3.第三部分用什么词问就用什么词回答,CanJimplayfootball?Yes,hecan./No,hecant.DoesMrSmithspeakEnglish?Yes,hedoes./No,hedoesnt.注意:a.情态动词中may引导的问句，肯定用may，否定用cant或者mustntMayIgototheparknow?Yes,youmay./No,youcant.No,youmustnt.b.Must引导的问句，肯定用must，否定用neednt.MustIwashmyclothesnow?Yes,youmust./No,youneednt.,特殊疑问句,以特殊疑问词开头，对句中某一成分提问的句子。特殊疑问词：what什么who谁whose谁的which哪个when何时where何地why为什么how如何，询问手段方式,特殊疑问句的构成,1.对主语提问：疑问词+谓语动词+其他Lucyissingingintheroom.Whoissingingintheroom?TomsEnglishisgood.WhoseEnglishisgood?2.对其他成分提问：疑问词+一般疑问句ImfromChina.Whereareyoufrom?(对地点提问),Ilikedogsbecausetheyarecute,Whydoyoulikedogs？(对原因提问)IwillgotoShanghaitomorrow.WhenwillyougotoShanghai?(对时间提问),特殊疑问句的回答,回答特殊疑问句时，不能用yes/no,可以完整回答也可以简略回答。WhoisfromAmerica?完整回答HelenisfromAmerica.简略回答Helen.Whereisthebook？完整回答Thebookisonthedesk./Itisonthedesk.简略回答Onthedesk.,复合不定代词,由some，any，no，every分别加上body，one，thing构成的不定代词称为复合不定代词。具体见下表：,2.复合不定代词的用法,（1）some和any引导的复合不定代词的区别：以something和anything为例。Something用于肯定句Thereissomethinginthebox.Ihavesomethingimportanttotellyou.特例：something用于表示请求建议的问句,希望得到肯定的回答。初中我们经常遇到的就是wouldlike的句型。Wouldyoulikesomethingtoeat？anything用于疑问句和否定句Isthereanythinginthebox？Idonthaveanythingtosaytoday.,（2）复合不定代词被形容词，不定式修饰时，形容词和不定式放在其后。,Ihavesomethingimportanttotellyou.Idonthaveanythingtosaytoday.Wouldyoulikesomethingtoeat？（3）复合不定代词表示单数概念，作主语时，谓语动词用单数形式。Everythingbeginstogrowinspring.Nothingisimpossible.