搜索
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.12一般现在时(TheSimplePresentTense)1.表示现在的状态：e.g.He’stwelve.She’satwork.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.31.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.Youaren’tthirteen.Theyaren’tintheclassroom.一般疑问句：Be+主语+表语?e.g.Isheaworker?Yes,heis./No,heisn’t.Areyouthirteen?Aretheyintheclassroom?Yes,theyare.No,theyaren’t.4Be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.5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？6•1、大多数动词在词尾直接加s，如take→takeslook→looksplay→playsbring→bringseat→eatsbuy→buyscome→comes2、以辅音字母加y结尾的动词，要先将y变为i，再加es如：fly→fliesstudy→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”如：teach－teaches;watch－watches4、以“o”结尾的动词，加“es”，如：go－goesdo－does5、特殊变化have→has7动词单三形式规则变法: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]likesgetsfinds以s,sh,ch,x,o等结尾的词加-es读[iz]或[z]goes,teaches,watches以辅音字母+y结尾的词变y为i再加-es读[z]study→studies8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.haswatchgoeslikehavewatches9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Thegirldoesn’t(doesnot)likeplayingbaketball.Theseboysdon’t(donot)likeplayingbasketball.10•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：don’t和doesn’t之后动词一定要用原形111.Ilikered.(green)2.Theylikeapples.(oranges)3.TomwatchesTV.eg1:Ihaveabrother.Idon’thaveabrother.eg2.HehaslotsofT-shirts.Hedoesn’thavelotsofT-shirts.Idon’tlikegreen.Theydon’tlikeoranges.Tomdoesn'twatchTV.1012•.Theseboysgotoschool45.Maryeatshealthyfood.6.Ourstorehasmanyclothes.13实义动词一般疑问句的构成和它的肯定回答和否定回答14•问句：Doyouwanttoseeamovie？•肯答:Yes，Ido.否答:No，Idon’t.•问句：Doesheplaybasketball?•肯答：Yes,hedoes.否答：No,hedoesn’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+do/doesnot.”助动词也常用缩写形式，主要有don’t，doesn’t15•Yes,hedoes.No,hedoesn't.•Yes,theydo.No,theydon't.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?16将下列句子改为一般疑问句•TheywatchbasketballgamesonTV.•DotheywantchbasketballgamesonTV?•Ihavemanynewbooks.•Doyouhavemanynewbooks?•Heeatseggsforbreakfast.•Doesheeateggsforbreakfast?17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,we→you）；三问号：句末的句号改为问号。18Wehavebreakfasteverymorning.→Doyouhavebreakfasteverymorning?Hewantstoseeamovie.→Doeshewanttoseeamovie?19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)204.GaoShan'ssisterlikesplayingtabletennis.（改为否定句和一般疑问句）GaoShan'ssisterdoesn’tlikeplayingtabletennis.DoesGaoShan'ssisterlikeplayingtabletennis?5.Idon'ttakethesebookstomybrother.(改为肯定句)Itakethesebookstomybrother.6.Marydoesn'thaveastorybook.(改为肯定句)•Maryhasastorybook.21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。22•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？231.Theygototheparkinthemoring.2.Youcanwritethenameinthebox?3.Shelikesoranges.4.Heoftengoestoschoolbybike?When/whattimedotheygototheparkWherecanIwritethename?Whatdoesshelike?Howdoesheoftengotoschool?•特殊疑问词+do/does+主语+动词原形+……？24