九年级英语全册《Unit 9 when was it invent（第1课时）》学案 人教新目标版-人教新目标版初中九年级全册英语学案VIP专享VIP免费

Unit9whenwasitinvent学习目标掌握重点单词和短语:invent发明;创造adjustable可调整的battery电池operate操作;作业microwave微波(的)slipper拖鞋heel鞋跟beusedfor用来做……lightbulb电灯泡掌握重点句型:①—Whenwasthetelephoneinvented?--Ithinkitwasinventedin1876.②—Whataretheyusedfor?--They’reusedofrseeinginthedark.③—Whoweretheyinventedby?—TheywereinventedbyJulieThompson.语法:一般过去时态被动语态的构成和用法。学会用英语谈论发明史,学会使用被动语态。第一课时(1a～2c)预习按要求完成下列单词1.invent(过去分词)_______________2.heat(形容词)________________3.invention(动词)_________________4.scoop(动名词)_______________5.slipper(复数)___________________6.operation(动词)______________二.根据句意和首字母提示完成单词7.It’susedfors____________reallycoldicecream.8.Whoweretheyinventedb___________?9.Thebeautifulgirloftenwearsshoeswithhighh____________.10.Whenwasthecari___________?11.Thesneakerswereo____________bybattery.重难点知识点拔1.invent为动词,意为“发明”;inventor为名词,意为“发明家”;invention也为名词,意为“发明;发明物”。如:ThomasEdisonwasanAmericaninventor,heinventedlotsofinventionsinhislife.爱迪生是一位美国发明家,一生中他发明了很多东西。Invent/discover/find/findout辨析:invent意为“发明”,指发明以前根本就不存在的新事物;discover意为“发现”,指发现以前就存在,但还不被人所知的事物;find意为“发现;找到”,这个词多指偶然发现某事物;而findout多指经探听、询问、调查、研究之后,从而搞清楚,弄明白某事物的结果。2.beusedfordoingsth“被用来做某事”,强调用途或作用。Beused为被动语态,注意介词for后要跟动名词形式。Beusedas“(被)作为…而吏用”,强调被当作工具或手段来用。beusedby“被……使用”,by后跟人或物,强调使用者。Beusedtodosth“被用来做……”,强调动作。Usedtodosth“过去常常干某事”。Be/become/getusedtosth/doingsth“习惯于某事或干某事”,其中used是形容词,to为介词。3.beinventedby“被……发明”,后面跟发明者。在被动语态中经常出现“be+过去分词+by”结构。当把被动语态还原为主动语态时,介词by后面的名词或代词要变为主动语态的主语,如果是代词宾格要变为主格。:如:Englishisspokenbymanypeople.→ManypeoplespeakEnglish.许多人讲英语。4.Operatev.操作;作业It’shardformetooperatethemachineatfirst.我开始操作那台机器很困难。(1)operate作不及物动词,意为“手术”,常与介词on连用。Thedoctorisoperatingonhisleg.那位医生正在给他的腿做手术。(2)operationn.操作;作业5.heatv加热;使变热。既可作及物动词也可作不及物动词。Thestovewillheattheroomsoon.炉火很快就会使房间变暖。反馈练习:汉译英爱迪生发明了电灯泡Edison_________________________________________________________哥伦布发现了美洲大陆.Columbus______________________________________________________木材可以被用来造纸.__________________________________________________________医生想给病人做手术.___________________________________________________________课堂训练单项选择()1.Thisbeautifulpicturewasdrawnby_________.A.herB.hersC.sheD.he()2.Chineseisused_________thefirstlanguageinChina.A.forB.asC.byD.to()3.Bell_________thetelephonewhichisstillbeingusedtoday.A.inventedB.discoveredC.foundD.foundout()4.Paperisusedfor_________.A.writeB.towriteC.writingD.writingon()5.--_______wereelectricslippersinvented?--Sorry,Idon’tknow.A.WhoB.WhomC.OfwhomD.Bywhom()6.Heatediceweamswop_________ChelseaLanmon.A.wasinventedB.wasinventedbyC.wasinventedisD.inventedby二.句型转换.7.Wegaveawaysomebookstothechildren.(变为被动语态)Somebooks___________________________tothechildren.8.Thegirlcameupwithagoodidea.(被为被动语态)Agoodidea_________________________________bythegirl.9.BillGateswroteTheRoadAheadin1995.(变为被动语态)TheRoadAhead___________________________BillGatesin1995.10.Theykeyisusedforlockingthedoor.(对画线部分提问)_________isthekey_________for?11.ThiskindofmachinewasinventedbyTom.(对画线部分提问)______________________thiskindofmachineinventedby?Themostusefulinvention—computers参考答案:Unit9第一课时预习:一.1.ivwented2.hot3.invention4.scooping5.slippers6.operate二.7.scooping8.by9.heels10.iwvented11.operated反馈练习:EdisoninventedtheelectrichightbulbColumbusdiscoveredAmericaWoodcanbeusedformakingpaperThedoctorwantedtooperateonthepatient课堂训练一.1—6ABADDB二.7.weregivenaway8.wascomeupwith9.waswrittenby10.whatusedwhowas