Unit4SectionA（2a2d）课件人教版英语九年级全册

Unit3Couldyoupleasecleanyourroom?SectionA2a-2dTeachingAimsNewwords,phrasesandsentencestructures.Beabletomakepoliterequestsandaskforpermissions.

.Iusedtobeafraidofthedark.usedtodosth.

过去常常做某事表示过去经常性或习惯性的动作或状态，暗指现在已经不存了，强调过去与现在的对比。usedto的否定形式有两种：didn’tuseto或usedn’tto。e.g.Theyusedtobegoodfriends.

他们过去是好朋友。(暗示现在不是了)MrsBrowndidn’tuseto/usedn’ttotravelinsummer.布朗夫人过去夏天不旅游。

Didyouuseto/Usedyoutoplaytheguitar?他过去弹吉他吗？usedto用于疑问句时，可借助助动词did，也可以将used提到主语前。【拓展】几个易混结构的比较：

结构意义to的作用usedtodosth.过去常常做某事不定式符号use...todosth.用……做……beusedtodosth.被用来做……beusedtodoingsth.习惯于做某事介词use...todosth.用……做……e.g.Theyusetheknifetocutmeat.他们用刀切肉。e.g.Thiskindofwoodisusedtomakepaper.

这种木头是被用来做纸的。be

usedtodosth.被用来做某事be/getusedtosth./doingsth.习惯于某事/做某事e.g.Lucyhasbeenusedto(eating)Chinesefood.Lucy已经习惯(吃)中餐了。Ithinkyou’llgetusedtotheclimatesoon.我想不久你就会习惯这种气候的。根据所给汉语提示完成英语句子。1.Myuncle__________________(以前是个司机),butnowheisanactor.2.Tom’sfather____________________(过去常常看书)afterlunch.3.Mary__________________(以前常常骑自行车)towork,butnowshe_________________(习惯步行)towork.4.Thepencil______________(被用来书写).usedtobeadriver

usedtoread(books)usedtorideabikeisusedtowalking

isusedtowritePeterwantsto…Peter’sfathersays…Hisfather’sreasonsgooutfordinner.YesNoIhavetodosomeworkgotothemoviesYesNoYouhavetocleanyourroomstayoutlateYesNoIneedtoeatbreakfast.getarideYesNoYouhaveabasketballgame2aWhydoesPeter’sfathersay“no”?Peterwantsto…Peter’sfathersays…Hisfather’sreasonsgooutfordinner.YesNoIhavetodosomeworkgotothemoviesYesNoYouhavetocleanyourroomstayoutlateYesNoIneedtoeatbreakfast.getarideYesNoYouhaveabasketballgame2bWhydoesPeter’sfathersay“no”?Inthepast1.Paulausedtobereally_____.Shewasalwayssilentinclass.Shewasn’tvery________.Shewasneverbraveenough

toaskquestions.2.Shegotgoodgradein______.Shewasalsogoodin______.Sheusedtoplaythe______.outgoingquietsciencemusicpiano1.Nowshe’smoreinterestedin______.Sheplays______almosteveryday.She’salsoona_____team.2.Shestillplaysthe_____fromtimetotime.soccersportsswimpianoNow1.Whatclasswerethey?________________________________2.WhatwasPaulaneverbravetodoinclass?________________________________________________________________Listenagainandanswerthequestions.Theywereinscienceclass.Shewasneverbravetoaskquestionstoteachers.3.WhatsubjectswerePaulagoodat?______________________________4.WhatisPaulainterestedinnow?____________________________________________________________Scienceandmusic.Paulaismoreinterestedinsportsnow.Askforpermission

礼貌地取得同意A:CouldI

useyourcomputer?B:

Sorry.I'mgoingtoworkonitnow.A:Well,couldIwatchTV?B:Yes,youcan,butfirstyouhavetocleanyourroom.

No,youcan't....2cMakeconversationsbetweenPeterandhisfather.2dReadandanswerthequestions.Theyarehavingaparty.Whataretheydoing?Whoaretheytalkingabout?WhatdidBillyusetobe?TheyaretalkingaboutBilly.Heusedtobeshy,quietandthin.2dRole-playtheconversation.(Payattentiontothecolorfulwords.)Sister:Tony,couldyoupleasehelpoutwith

afewthings?Brother:CouldIatleast

finishwatchingthisshow?Sister:No.IthinktwohoursofTV

isenoughforyou!Brother:Fine.Whatdoyouwantmetodo?Sister:Couldyoutakeouttherubbish,foldtheclothesanddothedishes?Brother:Somuch?Sister:Yes,becauseMomwillbebackfromshoppinganyminutenow.Andshewon’tbehappyifsheseesthismess.Brother:Butthehouseisalreadyprettycleanandtidy!Sister:Yes,well,it’sclean,butit’snot“motherclean”.since作“自...以来,从...至今”的意思的时候，主句用完成时态，分句则用过去式。Ithasbeenfiveyearssincewelastmet.

自从上次碰面至今已经有五年的时间了。1.It’sbeenthreeyearssincewelastsawourprimaryschoolclassmates.2.Since自从

1).主句常用完成时，且动词为延续性动词

2).since从句用一般过去时

3).since从句的动词如果是短暂性动词直接翻译为“自从…”

延续性从此则译为：“自从不做某事以来…”Ithasbeenfouryearssincehestoppedsmoking.smoked.lefthere.livedhere.

4).若since引导的状语从句的谓语为持续性动词的现在完成时，则表示动作和状态延续到现在（说话时刻），其表示的时间的起点应从动作发生之时算起。如：

Ithasbeenfoursincehehasbeenateacher.wasateacher.3.so与such的用法辨析（1）so“如此的，这么”是副词，修饰形容词和副词，such“这样的，如此的”是形容词，修饰名词。so….that…“如此…以致于..”such…that……“如此…以致于..”

如：Sheissuchalovelygirlthateveryonelovesher.ThedeskissoheavythatIcan’tcarryit.

（2）so与such常用结构有：a.such+(1)a/an+adj+单数名词b.so+(1)adj/adv

（2）adj+不可数名词

(3)adj+a/an+单数名词（4）adj+复数名词（5）many/few+可数名词复数（6）much/little+不可数名词

选择正确答案()1.Thestudentsneeds______theirroombythemselves.A.toclean B.cleaned C.cleans D.tocleans()2.—Couldyoupleasedosomeshopping?—______.Ihavetohelpmymotherdothedishes.A.Yes,Id o B.Yes,Ican C.S