2014八年级英语下册unit5全单元课件

概念：过去进行时表示在过去某一时刻或某一段时间内进行或发生的动作。通常句子一定会有一个“表示过去某个时间点”的状语。如：at7p.m.lastnight、when引导的时间状语从句（whenhecame/）、thismorning、thewholemorning、alldayyesterday、fromninetotenlastevening、when、while结构:主语+was/were+doing+其他内容注:doing就是现在分词,词形变化与现在进行时相同I,she,he,it用wasYou,we,they用wereIwaswashingthebowlsatthistimelastnight.昨晚这个时候我在洗碗。Hewaswritingaletterwhenhisbrotherbrokeintohisroom.当他哥哥进入房间的时候他正在写信。Theyweresingingat8o’clockyesterdaymorning?昨天早上8点他们在唱歌。否定式：主语+was/were+not+现在分词ThistimeyesterdayJackwasnotwatchingTV.Hewasrepairinghisbike.昨天这个时候,杰克不是在看电视,而是在修理自行车。疑问式：was/were+主语+现在分词Wereyouplayingbasketballatfouryesterdayafternoon?昨天下午四点你们在打篮球吗?V-ing变化规则：1）一般加ing.如:play----playing玩watch----watching看以不发音的e结尾,去e加ing.如:take----taking拿make----making做come---coming来live----living居住小学到初中阶段双写最后一个字母的单词要特殊记忆。如：run----running跑cut----cutting切swim----swimming游泳sit----sitting坐get----getting获得shop----shopping购物stop-----stopping停止win----winning赢put----putting放forget----forgetting忘记begin----beginning开始•1.Iwassingingsongsyesterdaymorning.•否定句：___________________________•一般疑问句：__________________________•2.Theyweredrawingpictureswhentheteachercamein.•否定句：___________________________•一般疑问句：__________________________•3.Shewaswashingthewindowwhenthetelephonerang.•否定句：___________________________•一般疑问句：__________________________按要求转换下列句型。1.WewerehavingaPEclassatfouryesterdayafternoon.（改为否定句）We____________aPEclassatfouryesterdayafternoon.2.Katewasreviewingherlessonsateightlastnight.（改为一般疑问句，并做肯、否定回答）________Kate_______herlessonsateightlastnight?________,she________.________,she_______.•用所给动词的正确形式填空：•Doyouknowwhatthey_____(do)thistimeyesterday?•They_____(have)supperwhenwe_____(go)intotheroom.•It______(rain)from7to9lastnight.•Whenshe______(arrive)I_______(telephone)Harry.•What_____you______(do)yesterdayat7pm?•WhenI______(go)downstairs(楼下),they_______(eat)breakfast.•Whenwearrived,she______(make)somefreshcoffee.•Ibrokeaglass,whileI_______(cook)thedinner.一般过去时与过去进行时的区别1、一般过时往往表示某一动作已经完成，而过去进行时却表示动作在持续或未完成。比较：Shewrotealettertoherfriendlastnight.她昨晚给朋友写了封信。(信写完了)Shewaswritingalettertoherfriendlastnight.她昨晚一直在给朋友写信。(信不一定写完)2、一般过去时表示只做一次动作，而过去进行时却表示动作反复地进行。如：Shewavedtome.她朝我挥了挥手。Shewaswavingtome.她一直朝我挥手。3、句中有amomentago之类的短语一般用一般过去时。4、句中有atthistimelastSunday,from8to9yesterday之类的状语一般用过去进行时。过去进行时可以用来代替一般过去时，表示更为偶然而非预定的动作：IwastalkingtoTomtheotherday．那天我跟汤姆聊天来着。典型的例子1)Mary___adresswhenshecutherfinger.A.madeB.ismakingC.wasmakingD.makes答案C.割伤手指是已发生的事情，应用过去时。同时，when表时间的同时性，玛丽在做衣服时提供事情发生的背景，因此用过去进行时。2)Asshe___thenewspaper,Granny___asleep.read；wasfallingB.wasreading；fellC.wasreading；wasfallingD.read；fell答案B.句中的as=when,while，意为当……之时。描述一件事发生的背景时，用过去进行；一个长动作发生的时候，另一个短动作发生。句意为在她看报纸时，奶奶睡着了。句中的fell(fall的过去时)，是系动词，后跟形容词，如：fallsick。3.Heraninthepark.（用atthistimeyesterday改写）He_______________intheparkatthistimeyesterday.4.Theywereplayingcomputergamesatninelastnight.（对划线部分提问）________________they_______atninelastnight?5.Iwasreadinganovelatthreeyesterdayafternoon.（对划线部分提问）_________________you________atthreeyesterdayafternoon?when和while都可表示“当……的时候”，引导时间状语从句。你知道两者在过去进行时中的用法有什么不同吗？请仔细观察下面的例句，然后补全空格中的内容。①IwaswalkingtoschoolwhenIsawacatinatree.②WhenSallyarrivedhome,hermotherwascleaningthehouse.主句的动作是持续性的，而从句动作是短暂性的，此时用______引导时间状语从句，主句用__________时态，从句用一般过去时态。过去进行when③WhileIwassleepinginthebedroom,someoneknockedatthedoor.④Davidfellwhilehewasridinghisbike.主句的动作是短暂性的，从句的动作是持续性的，此时用_______引导从句，主句用__________时态，从句用过去进行时态。一般过去while⑤WhileAndywaswaitingforthebus,hewasreadinganewspaper.⑥HewascleaninghiscarwhileIwascooking.主句和从句的动作在过去的某时刻或某段时间同时发生，而且动作都是持续性的，此时用_________引导从句，而且主句和从句都用____________时态。过去进行while将下列汉语句子翻译成英语。1.当我正在网上查找信息的时候，门铃响了。WhileIwaslookingforinformationontheInternet,thedoorbellrang.2.当我看见他的时候，他正在做一架模型飞机。HewasmakingamodelplanewhenIsawhim.3.当我正在跑步的时候，我妈妈和我妹妹正在放风筝。WhileIwasrunning,mymotherandmysisterwereflyingakite.Iwasstudyinginthelibrary.Yesterday,therewasarainstorm.Whatweretheydoingwhentherainstormcame?Herearesomereports.Whatwereyoudoingwhentherainstormcame?Iwasonthestreet.Wherewereyouwhentherainstormcame?Iwastalkingwithmymotherinmyhouse.Whatwereyoudoingwhentherainstormcame?Iwaswaitingforthebusatthebusstop.Whatwereyoudoingwhentherainstormcame?1aWherewerethepeopleatthetimeoftherainstorm?Matchthestatementswiththepeopleinthepicture.1.__Iwasinthelibrary.2.__Iwasinmyhouse.3.__Iwasonthestreet.4.__Iwasatthebusstop.bdcaWhatweretheydoingwhentherainstormcame?Let’slisten.Payattentionto“was/were+doing”.1bListentotheTVreportandcirclethecorrectresponses.a.doingmyhomework/studyingb.playingbasketball/readingc.goingtowork/waitingforthebusd.walkinghome/shoppingShewasreadingathome.Lookatthepicturesandanswerthequestionsbyusing“was/were+doing”.Whatwasyoursisterdoingatthetimeoftherainstorm?He_____________________.Whatwasyourbrotherdoingatthetimeoftherainstorm?wasdoinghishomeworkHe____________________.Whatwasyourfatherdoingatthetimeoftherainstorm?wasplayingbasketball1cTalkaboutwhatthepeoplein1aweredoingatthetimeoftherainstorm.A:Whatwasthegirldoingatthetimeoftherainstorm?B:Shewas…2aListenandnumberthepictur