Unit8語法講義牛津深圳版七年級下冊英語

七（下）U8◆【語法部分】時間狀語從句時間狀語從句時間狀語從句用于說明主句動作發(fā)生或進(jìn)行的時間。時間狀語從句位于主句之前時，要用逗號將從句和主句隔開；位于主句之后時，則不需要用逗號?！居蓋hen引導(dǎo)的時間狀語從句的意義和時態(tài)】意義表示從句的動作與主句的動作同時發(fā)生。時態(tài)當(dāng)表示現(xiàn)在的時候，主句和從句同用現(xiàn)在時態(tài)；當(dāng)表示過去的時候，主句和從句同用過去時態(tài)；當(dāng)表示將來的時候，主句用一般將來時，從句用一般現(xiàn)在時表將來。如：Whenthebellrings,herushesoutoftheclassroom.Whenthebellrang,herushedoutoftheclassroom.Hewillrushoutoftheclassroomwhenthebellrings.當(dāng)鈴聲響起時，他就會沖出教室。（從句用一般現(xiàn)在時表示將來發(fā)生的動作“ring”）拓展時間狀語從句的引導(dǎo)詞除了when之外，常用的還有：before在.....之前；after在......之后；while當(dāng)....時；assoonas一.....就......；until直到；since自從；once一旦；as隨著。如：IlockthedoorbeforeIleavehome.Whileheissleeping,sheisrunning.Jimranawayassoonashesawthepolice.Onceyoutrythedish,youwillneverforgetthetaste.Astimegoesby,Joyceknowsshewaswrong.【鞏固練習(xí)】選擇最佳答案：________,youdecidetodosomething,youshouldn’tgiveupeasily.A.OnceB.ThoughC.AndD.BeforeIwastakingashower_______thephonerang.A.whyB.whereC.whenD.whatWillyoucallme_________youfindmycat?A.becauseB.assoonasC.thoughD.thenI________themanagerthereportwhenhe________back.A.willgive,willeB.give,esC.willgive,esD.give,willeTom________awayquietlywhennoonewaslooking.A.walkedB.iswalkingC.walkD.walks【usedto/didnotuseto】usedtodosth意思為“過去常常做某事”，表示過去經(jīng)常發(fā)生的動作或存在的狀態(tài)，而現(xiàn)在此動作已不再發(fā)生或此狀態(tài)不存在。這個結(jié)構(gòu)含有今昔對比之意。其否定式為didnot/didn’tusedtodosth;其疑問式為did...usetodosth.如：Heusedtoswiminthisriverwhenhewasyoung.Wedidn’tusetolivehere.Wheredidyouusetobuyclothes?【鞏固練習(xí)】根據(jù)題目要求完成下列句子。Alexusedtogoswimming.（改為疑問句）__________Alex___________________goswimming?Mikeusedtoplaybasketball.（改為否定句）Mike________________________________playbasketball.Harryusedtobeverythin.（就劃線部分提問）What________Harry___________________belike?【強(qiáng)化練習(xí)】選擇最佳答案_________shesatdown,itstartedtosnow.A.ThoughB.BecauseC.WhenD.WhyItsuddenly_______whenwewerehavingapicnic.A.wasrainingB.rainedC.rainsD.willrainJackismakingasnowmaninChinawhileKelly________inAustralia.A.wasswimmingB.swamC.willswimD.isswimmingWhenmymothergoesshopping,she_______herclothbag（布袋）.A.willtakeB.takeC.tookD.istakingTheshyboystoppedtalking________hesawme.A.soB.butC.assoonasD.then根據(jù)題目要求，改寫下列句子。1.Alanusedtoenjoyplayingchess.（改為一般疑問句）______________________________________________________Iusedtogotoschoolbyunderground.（改為否定句）______________________________________________________Mygrandmausedtodrawpictures（就劃線部分提問）______________________________________________________將下列句子翻譯成英文。1.我上學(xué)時總是看到這只貓。_______________________________________________________2.昨天下雨時，約翰待在家里。_______________________________________________________3.當(dāng)你取得進(jìn)步時，我會給你買一輛自行車。_______________________________________________________四、選擇最佳答案：_______mygrandpawas13yearsold,hemovedtoGuangdongProvincewithhisparents.A.WhenB.OnceC.WhereD.WhatWhenmymumcamein,I_______myhomework.A.didB.wasdoingC.haddoneD.willdo______he_____flykiteswithyou?A.Did,usedtoB.Had,usedtoC.Was,usetoD.Did,useto五、圈出下列句子中的錯誤，并在橫線上改正。IbuyanewnotebookwhenIwentshoppingthismorning.________________________________________________________________Shedidn’tusedtogoswimmingatweekends.________________________________________________________________Mydadusedtobuyingnewspapersint