一般现在时(示范课)

Welcometomyclass!一般现在时Thesimplepresent一、一般现在时的用法•（一）、表示经常性或习惯性的动作•Whatsubjectdoyoutake?•Igetupat6:00everymorning.•Iususllygoswimminginmysparetime.•（二）、表示目前的状态•I’msotired.•Youarestudents.•Iamateacher.•（三）.表示客观事实或真理•Theearthgoesaroundthesun.•Thesunrisesintheeast.•（四）.与一般现在时连用的时间状语：often,always,sometimes,usually,everyday/week/year等．二、一般现在时的构成系动词be的一般现在时实义（行为）动词的一般现在时•（一）、系动词be的一般现在时1、肯定句的构成：主语+be+其他be包括哪些？isamare什么时候用is？什么时候用am？什么时候用are？取决于主语是单数还是复数Thegirlismyfriend.•主语为单数时――→•主语为复数时――→•主语为“I”时――→isareamExercise•1、KittyanEnglishgirl.•2、Westudents.•3、IfromTaizhou.•4、Shetall.•5、LucyandLilygoodfriends.•6、Thosechairsbroken.•7、Thebagmine.isareamisareareis2、否定句的构成主语+be+not+其他isnot=amnot=arenot=isn’t’mnotaren’t•1、Kitty(not)anEnglishgirl.•2、We(not)students.•3、I(not)fromTaizhou.•4、She(not)tall.•5、LucyandLily（not）goodfriends.•6、Thosechairs(not)broken.•7、Thebag(not)mine.isn’taren’tamnotisn’taren’taren’tisn’t3、一般疑问句的构成Yes，itis.No，itisn’t.IsthisyourEnglishbook？注意：在回答时，主语要用相应的代词代替be+主语+其它部分？肯定回答：Yes，主语+be否定回答：No，主语+be+notbe主语其他•IsMaryanEnglishteacher?•肯定回答：•否定回答：Yes,sheisNo,sheisn’t.含be动词一般疑问句的改写•秘诀：一调二改三问号一调：即把句中的be调到主语前；二改：改换主语称谓，即将句中的主语Imymineweourours等第一人称分别改为相应的第二人称youyouryours等；三问号：句末的句号改为问号IamanEnglishteacher.→AreyouanEnglishteacher?总结：含be的一般疑问句、否定句改写口诀•我用am，你用are，is连着她他它•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！•book（二）、行为动词的一般现在时1、肯定句的构成主语+行为动词+其他Theseboyslikeplayingfootball.ThegirlreadsEnglisheverymorning.注意：当主语为第三人称单数时，行为动词要加s或者es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read→readslook→looksplay→plays2、以辅音字母加y结尾的动词，要先将y变为i，再加es如：fly→fliescarry→carriesstudy→studies26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”，发音为[iz]如：teach－teaches[iz];watch－watches[iz]box---boxes4、以“o”结尾的动词，加“es”，读[z]如：go－goes[z]do－does[z]Completethesentences.Usethesimplepresenttenseoftheverbsinbrackets1.Myfather_______(listen)totheradioeveryday.2.Mike_______(study)inamiddleschool.3.She______(take)Eddieforawalkaftersupper.4.He_______(wash)clotheswithhishands.5.Simon______(pass)theballtoDaniel.6.MissLi_______(teach)Chinese.7.Lookattheanimal,it____（have）fourlegs.listenstakesstudieswashespassesteacheshas82、否定句的构成主语+助动词（do/does）+not+行为动词原形+其他Theseboysdon’t（donot）likeplayingfootball.Thegirldoesn’t（doesnot）readEnglisheverymorning.什么时候用助动词do，什么时候用助动词does呢？取决于主语ThegirlreadsEnglisheverymorning.Theseboyslikeplayingfootball.•当主语为复数时，用助动词do构成否定•当主语为单数时，用助动词does构成否定注意：don’t和doesn’t之后动词一定要用原形Changethefollowingsentencesafterthemodels.1.Ilikered.(green)2.Theylikeapples.(oranges)3.Wetakeabustoschooleveryday.(walktoschool)Model1:Ilikefish.(meat)Idon’tlikemeat.Model2.Helikesreading.(writing)Hedoesn’tlikewriting.Idon’tlikegreen.Theydon’tlikeoranges.Wedon’twalktoschooleveryday.103.Hisbrotherplaysfootballafterschool.(playbasketball)4.Itlookslikeacat.(hat)5.Shehasadogathome.(acat)Hisbrotherdoesn’tplaybasketball.Itdoesn’tlooklikeahat.Shedoesn’thaveacatathome.11Completethesentences.Usetheproperverbformsinbrackets1.Jordan_______(play)basketball.He___________(notplay)football.2.I_______(go)swimmingonSunday.ButI___________(notgo)shopping.3.Mycousins_______(enjoy)computergames.Butthey__________(notenjoy)ballgames.4.You_______(like)fish.Buthe___________(notlike)fish.playsdoesn’tplaygodon’tgoenjoydon’tenjoylikedoesn’tlike123、一般疑问句的构成•问句：DoyourparentslikeEnglish？肯答：Yes，theydo.否答：No，theydon’t.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+donot/doesnot.”助动词也常用缩写形式，主要有don’t，doesn’t•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、把谓语动词改为原形；2、改换主语称谓（同be动词）。三问号：句末的句号改为问号。WereadEnglisheverymorning.→DoyoureadEnglisheverymorning?Tom’sfatherlistenstoEnglishontheradioeveryevening.→DoesTom’sfatherlistentoEnglishontheradioeveryevening?句型转换•1.Mr.GreencomesfromShanghai.•(改为一般疑问句)•2.MillielivesinaflatinBeijing.•(改为否定句)DoesMr.GreencomefromShanghai?Milliedoesn’tliveinaflatinBeijing.•3.Danielenjoysplayingcomputergames.•(改为一般疑问句并做肯定回答)DoesDanielenjoyplayingcomputergames?Yes,hedoes.补充：some、any•一般说来，some用于肯定句中，any用于否定句和疑问句中。改疑问句或否定句时，原句里的some要改成anyTherearesomebooksonthedesk.(改为否定句)→Therearen’tanybooksonthedesk.→Arethereanybooksonthedesk?Whynotbuysomeapples?为什么不买些苹果呢?Wouldyoulikesomemoreapples?你要不要再吃点苹果?注意：在表示建议或希望得到肯定回答时，some可用于疑问句，不用变成any.andor•变否定句时，and要变成orThereissomeairandwateronthemoon.→Thereisn'tanyairorwateronthemoon.Hehassomebrothersandsisters.→Hedoesn’thaveanybrothersorsisters.tooeither在否定句当中，too要改为eitherIlikeeatingapples,too.→Idon’tlikeeatingapples,either.•Areyouclear?•一、写出下列动词的第三人称单数•talk______forget______hope______stop______play______say______buy______worry_____•fly______study_______like_______make_____•give______see______swim______stop_____•plan______get_______sit_______let_______•cut_______run_______forget______begin____•wash_____finish_______teach_______go_______do_____talksforgetshopesstopsplayssaysbuysworriesfliesstudieslikesmakesgivesseesswimsstopsplansgetssitsletscutsrunsforgetsbeginswashesfinishesteachesgoesdoes•二、用括号内动词的适当形式填空。•1.Heoften________(have)dinnerathome.•2.DanielandTommy_______(be)inClassOne.•3.We_______(notwatch)TVonMonday.•4.Nick_______(notgo)tot