五年级英语上册Lesson3Acomputerhasakeyboard课件3科普版.pptx

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1、Lesson3Acomputerhasakeyboard.Learingaims1.Learnthenewwords:screen,mouse,keyboard.2.Learnthesentence:-----DoesaTVhaveascreen?------Yes,itdoes.Iamacat.Areyouacat?Isthisadog?Thisisadog.Icanswim.Ihavearuler.Doyouhavearuler?Canyouswim?screenATVhasascreen?自学提示：1.有be动词的如何变一般疑问句？2.有

2、情态动词的如何变一般疑问句？3.没有be动词，情态动词，主语不是第三人称单数怎么变？当主语是第三人称单数又如何变？，mouseDoesaTVhaveamouse?No,itdoesn't.keyboardDoesaTVhaveakeyboard?No,itdoesn't.Doesacomputerhaveascreen?Yes,itdoes.Doesacomputerhaveamouse?Yes,itdoes.Doesacomputerhaveakeyboard?Yes,itdoes.把下列句子改为一般疑问句并做肯定,否定回答。1.Hehasa

3、newfriend.Doeshehaveanewfriend?Yes,hedoes./No,hedoesn't.2.Shehasaredcap.Doesshehavearedcap?Yes,shedoes./No,shedoesn't.3.Tomhasawhitedog.DoesTomhaveawhitedog.Yes,hedoes./No,hedoesn't.4.Ihaveafootball.Doyouhaveafootball?Yes,Ido./No,Idon't.