一般现在时的功能1.表示事物或人物的特征、状态。如：Theskyisblue.天空是蓝色的。2.表示经常性或习惯性的动作。如：Igetupatsixeveryday.我每天六点起床。3.表示客观现实。如：Theearthgoesaroundthesun.地球绕着太阳转。一般现在时的标志词：often,usually,sometimes,every等一般现在时的构成主语+动词原形。如：WestudyEnglish.我们学习英语。当主语为第三人称单数(he,she,it，myfather等)时主语(三单)+动词的三单形式（要在动词后加"-s"或"-es"）如：MarylikesChinese.玛丽喜欢汉语。一般现在时的变化否定句：主语+don't(doesn't)+动词原形(+其它)。如：Idon'tlikebread.Hedoesn'tlikebread,too.一般疑问句：Do(Does)+主语+动词原形+其它。如：Doyougotoschoolbybike?Yes,Ido./No,Idon't.当主语为第三人称单数时，要用does构成一般疑问句。如：Doesshegotoschoolbybike?Yes,shedoes./No,shedoesn't.特殊疑问句：特殊疑问词+一般疑问句。如：Howdouyougotoschool?Howdoesyourfathergotowork?动词的第三人称单数的变化规则1．一般情况下，直接加-s，如：cook-cooks,make-makes2．以s.x.sh.ch.o结尾，加-es，如：wash-washes,watch-watches,go-goes3．以“辅音字母+y”结尾，变y为i,再加-es，如：study-studies但play-plays不规则变化have-has写出下列动词的第三人称单数形式1.teach_________2.talk__________3.are__________4.am____________5.go______6.do_______7.have________8.run____________9.wash_________10.buy___________11.study________12.play___________13.fly_________14.jump________15.watch_________16.swim__________圈出括号内正确的单词。I(amis)aChinese.Tom(amis)anAmerican.You(isare)anartist.Mymom(isare)anactress.We(areis)students.We(studystudies)intheprimaryschool.----Doeshe(likelikes)football?----No,hedoesn’t.He(likelikes)basketball.She(havehas)twooranges.Shedoesn’t(havehas)anyapples.Theycan(singsings).Suecan(dancedances).Samoften(buysbuies)newspaperinthemorning.Amyalways(dosdoes)homeworkontheweekend.JimandTom(goswimminggoesswimming)everyday.Mymotherusually(gogoes)toworkonfoot.用dodoes填空1、_____yourideabikeafterschool?Yes,I________.2、______yoursisterlikePE?No,she______not.What_______thestudentshave?Theyhavesomepens.How______Lindagotoschool?Shegoestoschoolonfoot.He______notspeakEnglish.HespeaksChinese.______theywatchTVonSundays?Yes,they______.Myfatherandmother______notreadnewspapersonSaturday.按照要求改写句子Weoftenplayfootballontheweekend.Heoften________footballontheweekend.(改写成第三人称)TheGreenshavebreakfastat9:00everymorning.MrGreen________