do和does的用法及区别.ppt

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1、Dodoes我来了auxiliary助动词动词表示动作状态，但英语里有些动词不表示动作状态，而是协助主动词表示时态或者语态，这类动词叫做助动词（auxiliaryverbs)如：基本助动词：have、do、be等半主动词：beaboutto等情态助动词：may、must、need等presentatoin1>Doyouhaveabaseball?Yes,Ido./No,Idon`t.Doeshehaveatennisball?Yes,hedoes./No,hedoesn`t.Idon`tlikebananas.Dothey

2、haveabasketball?Hedoesn`thaveapen.2>作为行为动词，跟其他动词一样，如：study、play等，他的意思是”做”等。如：Weusuallydoourhomeworkintheafternoon.作为助动词一>构成一般疑问句。Doyouwanttoanswermyquestion?二>do+not构成否定句Idonnotwanttobethelastone.三>构成否定的祈使句Handsup.Don`tmove!Don`tgothere.四>用作代词DoyoulikeWuqi?Yes,Ido

3、.(do用作代词，代替likeWuqi)注：除第三种用法外，do和does用法基本相同；do用于第一人称、第二人称和第三人称复数的形式中Does用于主语第三人称单数的句中）Exercise1___hewatchTVatnight?Yes,hedoes.2___yougotoschooleveryday?No,Idon`t.3___JackandPeterlikeapples?4___TinagoswimmingonSunday?5___theyplayfootball?6___wehaveagoodteacher?Yes,

4、we__7___yourdogwalkinthezoo?8___Ihaveabignose?No,you__(not)9___yourcatseatfish?Yes,they__(not)10___theirmothersgoshopping?No,they___(not)11I___(not)speakJapanese,___youspeakJapanese?Homework1>Finishthetaskofunit5~6exercises2>Using“do”and“does”tomakeupsentenses.