2022年八年级英语下册Unit4Whydon'tyoutalktoyourparents第三课时(GrammarFocus-4c)单元同步语法精讲精练作业课件新版人教新目标版

人教版第三课时(GrammarFocus­4c)—单元同步语法精讲精练Whydon'tyou...？的用法►“Whydon'tyou...？”意为“你为什么不……呢？”，通常用来提出建议，相当于“Whynot...？”。whydon'tyou和whynot后都跟动词原形。对其作肯定回答时，常用“Goodidea./Soundsgreat.”等；对其作否定回答时，可根据实际情况作答。eg：—Whydon'tyoujointhesportsclub？你为什么不加入运动俱乐部呢？—Goodidea.好主意。—Whydon'tyoubuythisbike？你为什么不买这辆自行车？—Well，itistooexpensive.哦，它太贵了。【拓展】用于提建议类似的表达方式还有：What/Howaboutdoingsth.？做某事怎么样？Let'sdosth.让我们一起做某事吧。Shallwe/Idosth.？我们/我来做……好吗？hadbetterdo/notdosth.最好做/不做某事Wouldyoupleasedosth.？请你做……好吗？Wouldyouliketodosth.？你想去做某事吗？Wouldyouminddoingsth.？你介意做某事吗？连词although，sothat，until的用法►although意为“尽管；虽然”，相当于though，用来引导让步状语从句。句中用了although或though，就不可再用but。若要强调前后两部分的对比意义，可在主句前加yet或still。eg：Although/Thoughhehasalotofmoney，yet/stillheisunhappy.他虽然有很多钱，但并不幸福。►sothat意为“目的是；为的是；以便”，引导目的状语从句，从句中通常含情态动词can，may，might等。eg：Hegotupveryearlysothathecouldcatchtheearlybus.他起床很早，为的是能赶上早班公共汽车。【拓展】sothat引导的目的状语从句可与inorderthat或inorderto结构相互转换。►until与延续性动词连用时，动词用肯定形式，表示“直到……为止”，指主句的动作一直持续到until后的动作发生为止；与短暂性动词连用时，动词须用否定形式，意为“直到……才……”，指主句的动作一直到until后的动作发生时才发生。eg：Iwaiteduntil3：00，buthedidn'tcome.我一直等到3点，但他没来。(wait为延续性动词)Thenoiseofthestreetdidn'tstopuntilmidnight.街上的喧闹声一直到半夜才停止。(stop为短暂性动词)

一、根据句意，选用until，sothat或although填空。1．Youcouldtakelotsofexercise_________youcankeephealthy.2．Iwillwait________MissJonescomesbackfromwork.3．___________itisnoteasytolearnEnglishwell，Iwon'tgiveup.4．Thelittlebabydidn'tstopcrying_________hesawhismother.sothatuntilAlthoughuntil二、按要求完成下列句子。每空一词。5．Whydon'tyoucallherback？(改为同义句)____________callherback?____________________callingherback?6．Theyfeltsotired，buttheystillwentonworking.(改为同义句)____________________theyfeltsotired，theystillwentonworking.7．Theyarrivedveryearlyinordertoseetheirfavoritestars.(改为同义句)Theyarrivedveryearly____________theycouldseetheirfavoritestars.8．Davewenttobedafterhefinishedhishomeworklastnight.(改为同义句)Dave__________gotobed__________hefinishedhishomeworklastnight.WhynotWhat/HowaboutAlthough/Thoughsothatdidn'tuntil本课时其他知识点精讲精练►return动词，作“归还”讲时，常用于returnsb.sth.或returnsth.tosb.结构中，相当于givesth.back；作“回来；返回”讲时，常用“returnto＋地点名词”，相当于comeback。一、按要求完成下列句子。每空一词。1．Canyougivethebooksbacktomenextweek？(改为同义句)Canyou________thebooks____menextweek?2．Heisnotachildanymore.(改为同义句)Heis_________________achild.3．你不应该抄袭同学的作业。(翻译句子)You________________yourclassmates'homework.4．我妹妹害怕在许多人面