一般现在时、现在进行时及一般过去时讲解课件(53张ppt).ppt

1、He works.He is working.He worked.在英语中，在英语中，不同时间不同时间发发生的动作或存在的状态要生的动作或存在的状态要用用不同的动词形式不同的动词形式来表现。来表现。时时态态现在进行时：现在进行时：一般现在时：一般现在时：一般过去时：一般过去时：现在正在现在正在进行进行的动作的动作经常经常或或习惯性习惯性的动作。的动作。过去过去某个时间或时间段结束某个时间或时间段结束的动作。的动作。一般现在时一般现在时 every,sometimes,at times always,usually,often,seldom,never,every,threetimesaday现

2、在进行时现在进行时一般过去时一般过去时yesterday,last week,-ago,the other day,in+年年,just now,When nowthese days,rightnow，Look,Listen.atPresent，at the moment312Tom always gets presents on his birthday.They usually go to school at seven oclcok.My mother often watches TV on the computer.We sometimes play basketball after

3、school.总 是是通通 常常经 常常有有 时Hestwelve.Iamastudent.一般现在时：一般现在时：表示现在的状态或经常、表示现在的状态或经常、习惯性的动作习惯性的动作：Lily Lucy 现在进行时现在进行时表示现在说话瞬间正在进行的动作。表示现在说话瞬间正在进行的动作。Sheisreadinginthereadingroomnow.Weareworkingonafarmthesedays.1、Lucydidherhomeworkathome.（改否（改否定句）定句）Lucy_herhomeworkathome.2、Hefoundsomemeatinthefridge.（变一

4、（变一般疑问句般疑问句)_he_meatinthefridge?3、Therewassomeorangeinthecup.（变一（变一般疑问句般疑问句)_there_orangeinthecup?didntdoanyfindDidWasany1 1 一般过去时表示过去某个时间一般过去时表示过去某个时间结束的动作或存在的状态。结束的动作或存在的状态。Ididmyhomeworkyesterday.IplayedsoccerlastSunday.Icleanedmyroomlastweek.Iwenttothebeachthreeyearsago.Iplayedtenniswithmyfriend

5、slastweekend.Iwenttothemoviesthreedaysago.1.Heisateacher.2.KangkangcomesfromChina.3.Iusuallytakethebustowork.先（一般疑问句）先（一般疑问句）再（否定句）再（否定句）Isheateacher?Heisntateacher.DoesKangkangcomefromChina?KangkangdoesntcomefromChina.Doyouusuallytakethebustowork?Idontusuallytakethebustowork.句句型型变变化化操操练练4.Theyareha

6、vingclasses.5.Janeplayedtheguitarlastnight.Aretheyhavingclasses?Theyarenthavingclasses.DidJaneplaytheguitarlastnight?Janedidntplaytheguitarlastnight.句句型型变变化化操操练练改一般疑问句的方法：改一般疑问句的方法：首先看有无首先看有无be动词，如果有，将动词，如果有，将be提到句提到句首并大写，句末打问号首并大写，句末打问号.如果没有如果没有be动词，看原句的动词形式来决动词，看原句的动词形式来决定借用助动词定借用助动词do/does/did,并且

7、并且行为动词要还行为动词要还原原。V-原形原形V-s/esV-ed(过去式过去式)+动词原形动词原形?DoDoesDid改否定句的方法：改否定句的方法：以此类推以此类推首先看有无首先看有无be动词，如果有，在动词，如果有，在be动动词后面加词后面加not.如果没有如果没有be动词，看原句的动词形式动词，看原句的动词形式来决定借用助动词来决定借用助动词do/does/did,并在后面并在后面加加not,并且并且行为动词要还原行为动词要还原。主语主语+dont/doesnt/didnt+动词原形动词原形 对比对比时态时态动词形式动词形式否定句否定句一般问句一般问句现在进现在进行时行时 一般现一般现

8、在时在时一般过一般过去时去时表格对比学习表格对比学习be+v-ing(现在分词）现在分词）在在be后后加上加上notBe提到句提到句首首V-原形原形V-三人单三人单在实义在实义v.前借前借do,does后加后加not，动词还原，动词还原Do,Does提提句首，句首，+动动原原V-ed(过去式）过去式）在实义在实义v.前借用前借用did后加后加not，+动原动原Did提到句提到句首，实义首，实义动词还原动词还原Complete the sentences.王先生是我们的英语老师。王先生是我们的英语老师。1.Mr Wang _(be)our English teacher.2.Mr Wang _(

9、not be)our English teacher.3._(be)Mr Wang our English teacher?4.Yes,_ _.No,_ _.is is is not/isnis not/isn t tIs Is he is he ishe isnhe isn t t一般一般现在在时v一、写出下列动词的第三人称单数形式v1.work_read_v2.clean_write_v3.teach_wash_v4.guess_watch_v5.go_do_v6.study_fly_v7.cry_play_v8.have_v一、写出下列动词第三人称单数形式v1.workworksread

10、readsv2.cleancleanswritewritesv3.teachteacheswashwashesv4.guessguesseswatchwatchesv5.gogoesdodoesv6.studystudiesflyfliesv7.crycriesplayplaysv8.havehas大多数单词大多数单词+stalk-talkslook-looks以辅音以辅音y结结尾的单词尾的单词变变y为为i加加esflyflies（元音（元音+y直接加直接加s）以以s,ch,sh 或者或者 x结尾结尾的单词的单词+es miss-misses watch-watches wash-washes

11、 fix-fixes一般在动词原形后一般在动词原形后+ing以不发音的以不发音的e结尾结尾的，去的，去e，+ing以辅音以辅音+元音元音+辅音辅音字母结尾的，双写字母结尾的，双写这一字母这一字母+ing动词动词-ing形式的构成：形式的构成：writingtakinggettingrunningswimminggoinggoaskwritetakegetrunswimasking动词过去式转换练习动词过去式转换练习将下列动词变为过去式将下列动词变为过去式返回上页订正答案e16.say17.see18.put19.eat20.take21.read返回上页返回首页返回练习动词过去式转换练习动词过

12、去式转换练习答答 案案1.looklooked2.livelived3.stopstopped4.carrycarried5.hopehoped6.thinkthought7.Callcalled8.finishfinished9.wantwanted10.Arewere11.go went12.havehad13.dodid ecame16.saysaid 17.seesaw18.putput19.eatate20.taketook21.readread动词过去式动词过去式的构成的构成规则动词规则动词不规则动词不规则动词规则动词过去式的构规则动词过去式的构成成构成规则构成规则例词例词一般在动

13、词末尾加一般在动词末尾加edlooklookedplayplayed结尾是结尾是e的动词加的动词加-dlivelivedhopehoped辅音字母辅音字母+元音元音+辅辅音音，双写，双写最后的最后的辅音，再加辅音，再加edstopstoppedplanplanned结尾是结尾是“辅音辅音+y”的动的动词，变词，变“y”为为“i”再加再加ed studystudiedcarrycarried不规则动词表不规则动词表原形原形过去式过去式amiswasarewerebeginbeganbreakbrokebringbroughtbuildbuiltbuybought原形原形过去式过去式catchca

14、ughtcomecamedodiddrawdrewdrinkdrankdrivedroveeatatefallfell不规则动词表不规则动词表原形原形过去式过去式amiswasarewerebeginbeganbreakbrokebringbroughtbuildbuiltbuybought原形原形过去式过去式catchcaughtcomecamedodiddrawdrewdrinkdrankdrivedroveeatatefallfellhttp:/ 1.写出下列动词的过去式写出下列动词的过去式1.stay_2.go_3.visit_4.swim_5.study_6.have_7.fly_8

15、.draw_9.do_10.rain_11.help_12.lose_13.make_14.walk_15.decide_16.eat_17.am/is_18.are_stayedwentvisitedswamhadwaswereatewalkedmadehelpeddecideddidflewstudieddrewrainedlosthave-look-begin-use-shop-get-dance-study-现在分词现在分词第三人称单数第三人称单数过去式过去式study-finish-have-go-do-play-watch-give-need-stop-hope-play-try-

16、plan-visit-like-havinglookingbeginningusingshoppinggettingdancingstudying studiesfinisheshasgoesdoesplayswatchesgives neededstoppedhopedplayedtriedplannedvisitedliked用所给动词的适当形式填空。用所给动词的适当形式填空。1.Listen!Mary_(sing)now.2.Ayoungman(run)ontheplaygroundnow.3.Mymother_(watch)TVplayeveryday.4.OldBush_(visit)Chinaagainlastmonth.5.I_(play)sportsthreetimesaday.6.Look!LucyandLily_(read)books.7.There_(is)afootballmatchyesterday.8.Ourclass_(go)tothezoothreedaysago.issingingisrunning watches visited playarerea