1、underthetree.(主语+be动词+介词短语)Bdodo型由行为动词充当谓语,表示经常性或习惯性的动作,其构成为“主语+动词原形或动词第三人称单数形式”。knowit. Hebelievesme.Ctherethere型句子表示“某地存在”,其构成为“therebe+主语+其他”,表示客观事实。用法遵循“就近原则”,即主语是单数或并列主语中的第一个主语是单数,则用is;主语是复数或并列主语中的第一个主语是复数,则用are。(1)Thereaneraserteachersdesk.(主语是单数)(2)Thereorange,fiveapplesandeightbananasinbag.(
2、并列主语中的第一个主语orangeD情态动词型情态动词型句子的构成为“主语+情态动词+动词原形”,情态动词和动词原形一起构成谓语,表示说话人对所叙述的动作或状态的看法。HecanspeaklittleEnglish.(can+speak)MayIhavebook,please?(may+have)【练习】一、用所给词的适当形式填空。(Be动词)一般现在时中的动词有四中形式:am is are be其中:用于一人称主语之后,构成am句型。用于三人称单数主语she,he,it或单个的人和物之后,构成She/He/Itis句型。用于二人称you或复数主语we,theyYou/We/Theyare句型
3、。为该动词的原形,用于情态动词can,may,must之后或用于祈使句中。Becareful!当心!1.Jim_(be)hard-workingstudentatschool.2.TomSamsameclass?3.Yourschoollifeveryinteresting.4.Therepen,tworulerssomebooksdesk.5.Theboysfriendlyto6.Maria_(benot)fromU.S.A.7.anytreespoolyard?8.wantteacher.9.Mr.Wangthome,becauselightsoff.10.Dontlateforagain
4、.二、用所给词的适当形式填空。(情态动词)情态动词有can“能够,可以”may“可以”must必须 + 动词原形(不需变化)should应该Mymom_(cook)foodwell.Mustshe_(stay)homenow?Whatboy_(do)hisparents?cant_(sing)Englishsong.may_(perform)balletKangkangsbirthdayparty.She_(help)herparentshousework.三、用所给词的适当形式填空。(实义动词)主语(一,二人称或三人称复数) + 动词原形主语(三人称单数) + 动词三人称单数形式(动词s/e
5、s)否定句中(dont,doesnt) + 动词原形疑问句中(Do,Does+主语) + 动词原形often_(take)talkaftersupper._(go)bybike.LinTao_(like)readingstorybooks?classes_(have)today?Howdoesgirl_(watch)TV?Where_(live)Everyyearmanypeople_(lose)theirlivestrafficaccidents.doesnt_(get)upearlymorning.Eachofthemniceschoolbag.Theyeach_(sleep)night.
6、四、句型转换。否定句:直接在动词之后加not。疑问句:将动词提到主语之前。bluedress.(变否定句)_ _dress.Qijiang.(变一般疑问句)Qijiang?Arestorybooksinteresting?(否定回答)No,_ _.Hisbothworkers.(变一般疑问句)_workers?shelf.(对划线部分提问)shelf?五、句型转换。直接在情态动词之后加将情态动词提到主语之前。motherEnglish.(变否定句)English.Wecarefulwhenwecrossstreet.(变一般疑问句)street?finishmyhomeworkonce?(作肯
7、定和否定回答)Yes,_.reciteChinesepoem.(对划线部分提问)_?六、句型转换。三人称单数主语+还原动词其他主语 +dont +动词还原动词?Do +动词?playpianoloudly.(变否定句)louldy.learnswell.(变一般疑问)well?likesSichuanmuch.(对划线部分提问)much?Doschool?(作肯定回答)cookingevening.(变否定句)evening.shopping.(变一般疑问句)shopping?wathesTVnight.(对划线部分提问)night?sometimesgoswimmingafternoon.(
8、对划线部分提问)evening?一般过去时一般过去时表示过去某个时间发生过了的动作或存在过的状态。即描述已经发生过了的事情。【时间标志性词】 yesterday,thedaybeforeyesterday,2010,(threedays)ago,last(night,weekend),justnow,另一般过去时也表示经常或反复发生的动作,常和always等表示频率的时间状语连用。例如:wentfootyear.去年我通常走路去上学。动词(was和were)+名词、形容词、副词、代词、数词或介词短语等一起构成谓语,表示主语以前或过去的个性、特征或状态。wastenyearsago.(主语+be
9、werehungrynow.(主语+beThetreeyesterday.(ItrainySunday.TheyhappyBdiddid型由行为动词过去式充当谓语,表示以前做过的某事,其构成为“主语+动词过去式动词”。knewhimyoung. Hebelievedmethattime.be(was/were)型型句子表示“某地曾经存在”,其构成为“therebe(was/were)+主语+其他”。用法遵循“就近原则”,D情态动词型情态动词型句子的构成为“主语+情态动词过去式could+动词原形”,情态动词过去式和动词原形一起构成谓语,表示主语过去或曾经能做的事情。couldyear.(cou
10、ld+speak)Whatheten.一般过去时中的动词有两种形式:were用于单数主语之后,构成I/she/he/Itwas句型。用于复数主语和二人称were句型。time.Whenborn?bornCuba.weatheryesterdaycold.partyyesterday.dateyesterday?momentago?yourSaturday?Chongqingmonth.thismorning?情态动词的过去式为could,无人称变化。Jane_(can)wellonlyfive.dancediscoyear?_(cansleep首先根据句中提供的时间短语确定是否该用过去式。然后
11、判断该动词是属于规则动词还是不规则动词。规则动词直接加ed,不规则动词则需强化记忆。before.Butnowdont._(clean)ourclassroomago.breadvisitGreatWallyear.songnow.goodSunday?_(notporform)yesterday._(recite)poem.wind_(blow)strongly.was/were后加提到主语之前。smalltown.(变为一般疑问句)town?time.(变为否定句)friendslibrarynow.(对划线部分提问)Were(作否定回答)WasbrotherChongqing?肯定句:n
12、ot.singsongsfive.(变一般疑问句)five?rideyear.(变否定句)gameyesterday.(对划线部分提问)Couldcookdidnt还原动词Did +主语 +withduringsummerholidays.(变否定句)holidays.recitedpoemparty.(变一般疑问句)party?halfhourago.(变否定句)sangbeautifullyyesteray?tookpictureswinterholidays.(变一般疑问句)holidays?Didkidhurthimself(做否定回答)(对划线部分提问)Whoforgotclosedoorevening.(对划线部分提问)现在(正在)进行时义】现在(正在)进行时表示说话的瞬间正在进行或发生的事情。singingdancinghappily他们正在高兴地唱歌跳舞。showingfriendaroundcity她正在带一位朋友游览城市。【结构】主语+be(am/are)+动词的-ing形式。肯定句形式:am 动词ing. 如:(read)interestingstorybookShe/He/It +动词We/You/Theying.否定句形式:be(am,is,are)之后加not,其余照抄。如:not(read)T