初中英语九年级全册-Unit 6 Section A (2a-2d)学案

人教版英语九年级全册第六单元SectionA(2a-2d)导学案Unit6Whenwasitinvented?SectionA(2a-2d)预习目标：Tolistenandtalkabouttheusefulinventionsandtheirhistory,usingpassivevoice.(1).--Whatisit\aretheyusedfor?--Itis\Theyareusedfor...(2).It’susedinourdailylives.(3).Thepioneersofdifferentinventionswerelistedthere.2.通过谈论有用的发明，巩固一般过去时态的被动语态以及用法。预习导学：复习前面学过的一般过去时态的被动语态：结构：主语+be(was\were)+动词过去分词+其它.——肯定句主语+be(was\were)+not+动词过去分词+其它.——否定句Be(was\were)+主语+动词过去分词+其它？——一般疑问句例句：Thethiefwascaughtbythepoliceman.（肯定句）Thethiefwasn’tcaughtbythepoliceman.（否定句）Wasthethiefcaughtbythepoliceman?（一般疑问句）练习题：用所给词的正确形式填空。1.Allthebananasandstrawberries__________(eat)bythehungrychildren.2.Thelittleboy___________(feed)onlyapieceofbread.3.Asetofkeys___________(lose)andthemanwasworried.4.Tom’shomework___________(do)ontimeyesterday.5.Alotoftrees___________(plant)onMarch12thlastyear.6.Thetelephone____________(invent)longlongagoanditwasuseful.参考答案：1.wereeaten2.wasfed3.werelost4.wasdone5.wereplanted6.wasinvented预习导学：2aListenandnumbertheinventions[1-3]intheorderyouhearthem.____________shoeswithspecialheels（带有特别的后跟的鞋子）____________shoeswithlights（带有灯光的鞋子）____________hotice-creamscoop,runsonelectricity（电动的加热冰激凌的鞋子）2bListenagainandcompletethechart.InventionWhatisit/aretheyusedfor?shoeswithspecialheels_________thestyleoftheshoesshoeswithlightsSeeing_______________________________hotice-creamscoop________reallycoldice-cream参考答案：1.hedark3.serving听力材料中的一些短语：1.inthedark在黑暗中2.instyle流行的,时髦的\outofstyle过时的\thestyleof………的样式\款式3.beusedfor...被用来做。。。2cMakeconversationsusingtheinformationin2b.A:Whataretheyusedfor?B:They’reusedfor...具体来说：A:Whataretheshoeswithlightsusedfor?B:They’reusedforseeinginthedark.或者：A:Whatarehotice-creamscoopusedfor?B:They’reusedforservingforreallycoldice-cream.A:Whatareshoeswithspecialheelsusedfor?B:They’reusedforchangingthestyleoftheshoes.注意区别：beusedfordoingsth.与beusedtodosth.beusedfordoingsth.“被用来做某事”。与beusedtodosth.同义——表用途、目的。例如：Theshoesareusedforavoidinghurting.=Theshoesareusedtoavoidhurting.2dRole-playtheconversation.Readtheconversationforthefirsttimeandanswerthefollowingquestions.1.Whoinventedthezipper?________________________________________2.Whenwasthezipperinvented?_______________________________________3.Whenwasitusedwidely?____________________________________________参考答案：1.ItwasinventedbyWhitcombJudson.2.Itwasinventedin1893.3.Itwasinventedin1917.Readtheconversationagainandtranslatethesentences.1.拉链是在1893年被惠特科姆.贾德森发明的。Thezipper_________________________WhitcombJudson______1893.2.但是在那个时候，它还没有被广泛使用。But_______________________,it__________________widely.参考答案：1.was,invented,by,in2.atthattime,wasn’tused练习题：一、翻译短语1.beusedfor______________2.thinkof____________3.mypleasure____________4.thinkabout______________5.ourdailylives____________6.haveapoint_________7.atthattime_____________8.becomepopular____________参考答案：1.被用作…2.想到3.很荣幸4.考虑5.我们的日常生活6.有道理7.在那时8.变得受欢迎;变得普遍翻译句子1.拉链是什么时候发明的？When_______thezipper______?2.你好像说的有道理。Youdoseemto___________________.3.拉链在那个时候还没有广泛被使用。Zippers____________time________________widely.有特别后跟的鞋子被用来改变鞋子的样式.Shoes________specialheels______________________________thestyleoftheshoes.5.拉链被用于日常生活.Zippersareusedin__________________.参考答案：was,invented2.haveapoint3.atthat,weren’tused4.with,areusedforchanging\areusedtochange5.dailylives用所给词的正确形式填空。Oh,lookatthebigmeal,doyouknowwhen_____it_______(prepare)?Thebeautifuldress__________________(make)bythekindwoman.Luckily,thetask（任务）_________________(finish)intime.Thethingssheshoulddo_________________(list)onapieceofpaper.Yesterday,theapples__________________(pick)onthefarm.参考答案：1.was,prepared2.wasmade3.wasfinished4.werelisted5.werepicked按要求改写句子。1.Theyusedapentowriteanarticleyesterday.（改为被动语态）Anarticle_____________bythemyesterday.2.Theyfoundagirlcryinginthecorner.（改为被动语态）Agirl_______________cryinginthecornerbythem.3.Alicewateredtheflowersinthemorningyesterday.（改为被动语态）Theflowers__________________inthemorningyesterdaybyAlice.1.waswritten2.wasfound3.werewatered选择题—Thankyouforhelpingme.—__________!NotthankmeB.WithpleasureC.Itdoesn’tmatterD.Don’tsaylikethat—Whataretheyusedfor?—Theyareusedfor_______reallycoldice-cream.A.se