一般现在时及动词变化（课件）人教PEP版英语六年级下册

Mybrotherreadsbookseveryday.Look!HowoftendoesBen’sfamilydothesethings?Mygrandpaalwaysgoesfishing.Mygrandmawalksadogtwiceaweek.Myfatheroftendrivesatruck.Mybrotherreadsbooks.Mygrandpagoesfishing.Mygrandmawalksadog.everydayalwaystwiceaweek表示习惯性、真理性的状态或者动作（有时间规律发生的事件）的一种时间状态。一般现在时Myfatherdrivesatruck.often时间标志词Practice()1.He__________theradioeverymorning.A.listenstoB.listensC.listenD.listento()2.Heoften__________usEnglishstories.A.tellingB.tellsC.istellingD.tellAB用法一：表示经常发生的习惯性动作或存在的状态Practice()1.Theearth__________aroundthesun.A.wentB.goesC.willgoD.wouldgo()2.Themoon__________roundtheearth.A.travelledB.hastravelledC.travelsD.hadtravelledBC用法二：表示客观事实或真理Helpbeesfindtheirnests.everyweekeverynightusuallyoftennevertwiceaweekevery时间系列

频率副词系列

onceaweek时间系列

sometimeseverydayalwaysthreetimesaweek一般现在时的时间标志词有哪些类型？1.当谓语是be动词时一般现在时结构Sheisastudent.Sheisn’tastudent.is和isn’t在此处作谓语isn’t=isnotbe动词即am,is,areHe______aboy.isisisn’tHe________agirl.isn’tis表示肯定，变否定直接在is后面加not,isnot通常写为isn’t肯定句否定句主语he是第三人称单数，所以be动词用isWe________boys.aren’tarearen'tWe________girls.are主语we是第一人称复数，所以be动词用are肯定句否定句are表示肯定，变否定直接在are后面加not,arenot通常写为aren’tSheishappy.Sheishappy？happy？Isshe肯定句疑问句is表示肯定，变疑问句时把be动词is大写为Is并提到最前面，主语She变为小写she并移到is后面，变为Isshe……。主语肯定句否定句一般疑问句IamamnotAreyou...？He/She/It…isYou/We/Theyare主语+be动词+其他isn’taren’tIshe/she/it…？Areyou/we/they…？有be用be2.当谓语是行为动词时行为动词即有实际意义的动词。HewatchesTVeverynight.watches是行为动词，在此处为谓语，主语是第三人称单数he,所以watch要变成三单形式watches。Theduck________toschooleveryday.gogoesgoes主语theduck是第三人称单数，所以动词go用三单形式goesTheduck_______________toschooleveryday.godoesn’tgo表示肯定，变否定要在动词go前面加doesnot,通常写为doesn’t肯定句否定句肯定句变否定，有be用be，无be借两d（don't/doesn't）gogoesWe________toschooleveryday.go主语we是第一人称复数，所以动词go用原形We____________toschooleveryday.don’tgo肯定句否定句肯定句变否定：有be用be，无be借两d（don't/doesn't）三单人称用doesn't非三单用don't助动词后加动原HewatchesTVeverynight？HewatchesTVeverynight.DoeshewatchTVeverynight？Does肯定句疑问句含有行为动词的肯定句变否定，需要加上do/does（第三人称单数）,并提到句子的最前面，同时后面的动词要用原形，其结构为：Do/Does+主语+动词原形+其它主语肯定句否定句一般疑问句Iv.原形don’t+v.原形Doyou+v.原形...？He/She/It…v.三单You/We/Theyv.原形主语+行为动词+其他doesn’t+v.原形don’t+v.原形Doeshe/she/it+v.原形…？Doyou/we/they+v.原形…？无be用两d(do/does)exP35.5-4swim—read—help—like—一般情况，直接加sswimsreadshelpslikes动词第三人称单数形式变化规则guess—fix—push—watch—go—以s,x,sh,ch,o结尾的词，加esguessesfixespusheswatchesgoesstudy—fly—以辅音字母+y结尾的词，变y为i再加esstudiesflies不规则变化have和be动词have—be—hasisexP30情况构成方法读音例词一般情况加–s清辅音后读/s/,浊辅音和元音后读/z/swim—swimshelp—like—以s,x,sh,ch,o等结尾的词加–es读/ɪz/或/z/(o结尾)watch—watcheswash—go—以辅音字母+y结尾的词变y为i再加es读/z/study—studiescry

—不规则变化have和be动词变have为has变be为is

have—hasbe—is动词第三人称单数形式变换规则swimswimswatchwatches

havehas

helphelps

washwashes

beisgogoes

studystudies

flyflies

下列单词是否是三单，是的打√。mybook__________2.yourfather__________3.herpens__________4.amanandawoman________5.China__________6.children__________7.Tom__________8.twomice__________9.heandI__________10.threesheep__________字母s辨音小课堂(s在单词词尾)socks/sɒks/worksstops/wɜːks//stɒps/s

全部发/s/音k,p发清辅音清辅音+s结尾的单词，s发/s/音找相同字母s辨音小课堂(s在单词词尾)learns/lɜːnz/livesdogs/laɪvz//dɒɡz/s

全部发/z/音n,ve,g发浊辅音浊辅音+s结尾的单词，s发/z/音字母s辨音小课堂(s在单词词尾)trees/triːz/playscars/pleɪz//kɑː(r)z/s

全部发/z/音ee,ay,ar发元音元音+s结尾的单词，s发/z/音单词结尾发音例词读音清辅音socks,works,stops读/s/浊辅音learns,lives,dogs读/z/元音trees,plays,cars读/z/辨音口诀只适用于动词三单和名词复数哦。辨音口诀：清后清，浊后浊，元后浊1.trees_________socks_________2.learns_________books_________3.plates_______