一般现在时精讲课件.ppt

时态,在英语中，不同时间发生的动作或存在的状态，要用不同的动词形式来表示，这种表示动作发生时间的各种动词形式称为时态。Iam14thisyear.Iwas13lastyear.Heplayssoccerballeveryday.Heplayedsoccerballyesterday.,一般现在时,一般现在时(TheSimplePresentTense)1.表示现在的状态：e.g.Hestwelve.Shesatwork.2.表经常或习惯性的动作：e.g.Igetupat6:30everyday.HereadsEnglisheverymorning.3.表主语具备的性格和能力等：e.g.Shelikesnoodles.TheyspeakFrench.4.普遍真理和自然规律：e.g.Twoplusfourissix.Themoongoesaroundtheearth.,1.be动词的一般现在时的句式：肯定句：主语+be+表语(n.,adj.等)e.g.Heisaworker.Youarethirteen.Theyareintheclassroom.否定句：主语+be+not+表语e.g.Heisnotaworker.Youarentthirteen.Theyarentintheclassroom.一般疑问句：Be+主语+表语?e.g.Isheaworker?Yes,heis./No,heisnt.Areyouthirteen?Aretheyintheclassroom?Yes,theyare.No,theyarent.,Be的用法口诀I用am；you用are,is连着he，she，it；单数名词用is,复数名词全用are。,变疑问，往前提，句末问号莫丢弃。变否定，更容易，be后not莫忘记。疑问否定任你变，句首大写莫迟疑.,实义动词的一般现在时,构成（肯定句）,主语+实义动词+其他,Theseboyslikebananas.,Shelikesbananas.Thegirllikesbananas.,注意：当主语为第三人称单数或单数名词时，谓语动词要用第三人称单数形式,实义动词的第三人称单数形式什么时候加s，什么时候加es呢？,1、大多数动词在词尾直接加s，如taketakeslooklooksplayplaysbringbringseateatsbuybuyscomecomes2、以辅音字母加y结尾的动词，要先将y变为i，再加es如：flyfliesstudystudies26个字母中除AEIOU五个元音字母外，其余21个都是辅音字母3、以“s,x,ch,sh”结尾的，在词尾加“es”如：teachteaches;watchwatches4、以“o”结尾的动词，加“es”，如：gogoesdodoes5、特殊变化havehas,动词单三形式规则变法:,用括号内动词的适当形式填空,1.Heoften_(have)dinnerathome.2.We_(watch)TVonMonday.3.Nick_(go)tothestoreonSunday.4.They_(like)theWorldCup?5.SuHaiandSuYang_(have)eightlessonseveryday.6.She_(watch)TVwithherparents.,has,watch,goes,like,have,watches,否定句的构成,主语+助动词（do/does）+not+实义动词原形+其他,Theseboyslikeplayingbasketball.,Thegirllikesplayingbasketball.,什么时候用助动词do，什么时候用助动词does呢？,取决于主语,Thegirldoesnt(doesnot)likeplayingbaketball.,Theseboysdont(donot)likeplayingbasketball.,当主语为第一人称（I,we），第二人称(you)，第三人称复数(they)，复数名词时，用助动词do构成否定当主语为第三人称单数(he,she,it)，单数名词时，用助动词does构成否定,注意：dont和doesnt之后动词一定要用原形,Ilikered.(green)Theylikeapples.(oranges)TomwatchesTV.,eg1:Ihaveabrother.Idonthaveabrother.eg2.HehaslotsofT-shirts.HedoesnthavelotsofT-shirts.,Idontlikegreen.,Theydontlikeoranges.,TomdoesntwatchTV.,10,.Theseboysgotoschool,45.Maryeatshealthyfood.6.Ourstorehasmanyclothes.,实义动词一般疑问句的构成和它的肯定回答和否定回答,问句：Doyouwanttoseeamovie？肯答:Yes，Ido.否答:No，Idont.问句：Doesheplaybasketball?肯答：Yes,hedoes.否答：No,hedoesnt.,助动词+主语+动词原形+其它？,肯定回答用“Yes,主语+do/does.”否定回答用“No,主语+do/doesnot.”助动词也常用缩写形式，主要有dont，doesnt,Yes,hedoes.No,hedoesnt.Yes,theydo.No,theydont.,特别注意：一定要注意动词的还原，因为时态与数的变化已经体现在助动词上了。,Doeshewanttogoshopping?Dotheyplaycomputergames?,将下列句子改为一般疑问句,TheywatchbasketballgamesonTV.DotheywantchbasketballgamesonTV?Ihavemanynewbooks.Doyouhavemanynewbooks?Heeatseggsforbreakfast.Doesheeateggsforbreakfast?,含实义动词（或称为行为动词）一般疑问句的改写,秘诀：一加二改三问号一加：即在句首加助动词Do或Does；二改：1、把实义动词改为原形；2、改换主语称谓（第一人称改为第二人称，I,weyou）；三问号：句末的句号改为问号。,Wehavebreakfasteverymorning.,Doyouhavebreakfasteverymorning?,Hewantstoseeamovie.,Doeshewanttoseeamovie?,按要求改写句子,1.LinglingwatchesTVeveryevening.(改为否定句)2.Shelikesmilk.(改为一般疑问句，并作肯定回答)3.Ioftenplaytennisafterschool.(改为一般疑问句，并作否定回答),4.GaoShanssisterlikesplayingtabletennis.（改为否定句和一般疑问句）GaoShanssisterdoesntlikeplayingtabletennis.DoesGaoShanssisterlikeplayingtabletennis?5.Idonttakethesebookstomybrother.(改为肯定句)Itakethesebookstomybrother.6.Marydoesnthaveastorybook.(改为肯定句)Maryhasastorybook.,特殊疑问句,行为动词一般现在时的特殊疑问句的构成：特殊疑问词+do/does+主语+动词原形+？特殊疑问词（who“谁”,what“什么”,where“哪儿”,when“什么时候”,how“怎么样”)回答时，不能用yes或no来应答，而是怎样问就怎样答。,Whatdoeshedowithhiscomputer?他用他的电脑做什么？Whendoyouuseyourcomputer?你什么时候用你的电脑？Wheredotheycomefrom?他们来自哪里？Howdoyouprintyourdocument?你怎样打印你的文件？,1.Theygototheparkinthemoring.2.Youcanwritethe