陈述句

Topic1DeclaritiveSentencesHeismyfather.Thisisacat.Thesunisbiggerthanthemoon.Idon'tlikeblue.如何用英语表达一个句子•先说主要部分，再说次要部分。•时间地点做状语最后说；同时出现，先说时间再说地点；从小到大说！•Thisisaphotoofmyfamily.•Ilikeplayingfootballwithmyfamilyintheafternoon.•Cometomyhouseat7:00Sundayevening.•Iwantyoutostudyhard.表达下列句子•我是一个来自中国的女孩。•IamagirlfromChina.•小明喜欢在晚上看电视。•XiaominglikeswatchingTVintheevening.•他爸爸非常喜欢足球。•Hisfatherlikesfootballverymuch.•汤姆是我的表哥。•Tomismycousin.小学阶段的时态时态动词形式be动词实义动词（work）一般现在时am/is/are①动词原形（work）②第三人称单数（works）现在进行时am/is/are+beingam/is/are+动词ing（am/is/areworking）一般过去时was/were动词过去式ed（worked）一般将来时willbewill+动词原形（willwork）注意：小学阶段情态动词+动词原形（canwork/canbe），还没有涉及到时态变化。需掌握的情态动词有must（必须）,can（能，会）,may（可以）。找三单•he•thebirdsmyfatherandmother•water•theboy•Jimmy•you•she•we•apples•thecat•JackandMikeSpeaking•1.Whatdoyouusuallydointheafternoon?•Iusually______intheafternoon.•2.Whatdidyoudoyesterdayafternoon?•I______yesterdayafternoon.•3.Whatwillyoudothisafternoon?•Iwill______thisafternoon.陈述句的肯定式和否定式1.主+be动词+表语结构Heismyfather.Heisn'tmyfather.Be动词肯定句的时态通式•I___(be)astudent.•Iamastudent.•Iwasastudent.•Iambeingastudent.•Iwillbeastudent.•We__(be)students.•Wearestudents.•Wewerestudents.•Wearebeingstudents.•Wewillbestudents.•He___(be)astudent.•Heisastudent.•Hewasastudent.•Heisbeingastudent.•Hewillbeastudent.Be动词的肯定句变否定句•Iamastudent.•Iamnotastudent.•Heisastudent.•Heisnotastudend.•Wearestudents.•Wearenotstudents.•思考：be动词的过去式怎么变否定句呢？•在was，were后面加notHomework•1、抄写并记住be动词的否定式及缩写。•2、写出下列三句话的时态通式和否定句。•I___(be)ateacher.•Mary____(be)anurse.•They____(be)workers.2.主+谓语动词+其他Heworkshard.Hedoesn'tworkhard.Hecanworkhard.Hecan'tworkhard.谓语动词的时态通式•I___(play)football.•Iplayfootball.•Iamplayingfootball.•Iplayedfootball.•Iwillplayfootball.•注意：含有情态动词的谓语动词在小学阶段•没有时态变化。•Icanplayfootball.•He____(play)football.•Heplaysfootball.•Heisplayingfootball.•Heplayedfootball.•Hewillplayfootball.•We____(play)football.•Weplayfootball.•Weareplayingfootball.•Weplayedfootball.•Wewillplayfootball.谓语动词肯定句变否定句1、不含情态动词Iplayfootball.Idon'tplayfootball.Heplaysfootball.Hedoesn'tplayfootball.Weplayfootball.Wedon'tplayfootball.2、含有情态动词Icanplayfootball.Ican'tplayfootball.Hecanplayfootball.Hecan'tplayfootball.Wecanplayfootball.Wecan'tplayfootball.思考：谓语动词过去时变否定怎么变？借助助动词didn't，再加动词原形。陈述句各时态肯定句变否定句时态动词形式be动词谓语动词（work）一般现在时am/is/are+not①don't+动词原形（don'twork）②第三人称单数doesn't+动词原形（doesn'twork）现在进行时am/is/are+not+beingam/is/are+not+动词ing（am/is/arenotworking）一般过去时was/were+not动词过去式didn't+动词原形（didn'twork）一般将来时willnotbewill+not+动词原形（willnotwork）注意：含有情态动词的直接在情态动词后面加not，maynot，mustn't，can'tHomework•1、抄写并记住助动词和情态动词的否定形式。•2、写出下列三个句子的时态通式和否定形式。•Jack_____(have)lunchathome.•They______(canswim).•I____(do)homework.•