Unit6Whenwasitinvented第一课时SectionA(1a~2d)【学习目标】1.学习关于发明的单词。2.能听懂并能简单地谈论发明史。3.通过开展小组学习活动,能正确地使用一般过去时的被动语态,了解中美发明史的差异,更好地理解人类发明文化中的瑰宝。【学习重点】重点单词及短语:style,project,pleasure,daily,haveapoint,website,pioneer【学习难点】通过交流表达和听力训练,引入一般过去时的被动语态“was/were+done”。☞学习提示Freetalktoleadinthetopic:Therearemanyusefulthingsintheworld.Theyhelpusalotinlife.(Showsomepicturesonthescreen.)Whenweretheyinvented?Task1☞学习提示PreviewthewordsonP41-42,readthewordsbyphoneticsymbolsandmarkthenewwordsinthetext.Finallyfinishthetasksin1a.【学法指导】►辨析invent/discover/find/findout①invent意为“发明,创造”,主要指“通过想象,研究,劳动等创造出前所未有的东西”,尤指“科技上的创造发明”。②discover指发现或偶然发现本身就存在但未被认识的事物。③find强调找的结果,即“找到”,通常指偶然发现。④findout指经过观察,调查,把某事物查出来,意为“搞清楚,弄明白”。情景导入生成问题T:Therearemanyusefulthingsintheworld.Theyhelpusalotinlife.(Showsomepicturesonthescreen)Question:Whenweretheyinvented?Students:________________________________________________________________(1)Thetelephonewasinventedin1876.(2)Thecomputerwasinventedin…自学互研生成能力Task1Let'sreadnewwordsandthephrases.1.Icanread.(我会读)预习下列单词及短语,争取自己能正确拼读。拼读成功后再在课文中把单词及短语标记出来。style,project,pleasure,daily,haveapoint,website,pioneer2.Icanwrite.(我会写)翻译下列短语:(1)runonelectricity用电驱动的(2)beusedfor被用于(3)haveapoint有道理3.Icansummarize.(我会总结)在上一单元我们已经学习了一般现在时的被动语态,你能总结一般过去时的被动语态吗?一般过去时的被动语态的结构:was/were+及物动词的过去分词(+by)+其他;其否定形式是在was/were后加not;疑问形式是把was/were放到句首。Task2Let'slistentothetapeandfinish1b,2a,2b.Task3Let'smakeconversationsandinterview.1.Icantranslate.(我会译)(1)他们是被用来做什么的?Whataretheyusedfor?(2)这些鞋子带有特殊的鞋跟。Theshoesarewithspecialheels.(3)拉链是由WhitcombJudson发明的。ThezipperwasinventedbyWhitcombJudson.2.Icanmakeconversations.(我会编对话)你能结合课文内容编写对话,来介绍物品发明的时间、发明者及用途等吗?Task2☞学习提示1.ListentothetapeonP41andfinishthelisteningtasksin1b.Thenstudentslistentothetapeagainandfinishthetasksinthetext.ThetelephoneItwas1.inventedin1876.The2.carsTheywereinventedin1885.TheTVItwasinventedaround3.1927.Theywere4.expensiveinthosedays.ThepersonalcomputersTheywereinventedin5.1971.2.ListentothetapeonP42,andfinishthelisteningtasksin2aand2b.Thenlistenagainandrepeat.Task3☞学习提示Read1a,1c,2cand2dandfinishthetasksin1a,1c,2c,2d.Studentsimitatelisteningandhaveadialoguepracticewiththesentences:—Whenthethingsinthepicturesin1bwereinvented?—Ithink…【备注】3.Icansummarize.(我会总结)辨析beusedfor,beusedtodosth.,usedtodosth.,be/getusedtosth./doingsth.,beusedby及usesth.todosth.(1)beusedfor意为“被用于……”。介词for表示用途,后接名词、代词或v.ing。(2)beusedtodosth.意为“被用来做……”,强调动作,其中used是动词use的过去分词。(3)usedtodosth.意为“过去常常做某事”。(4)be/getusedtosth./doingsth.意为“习惯于某事或做某事”,其中to为介词。(5)beusedby意为“被……使用”,介词by后面接动作的执行者。(6)usesth.todosth.意为“用……做……”,用于主动语态。交流展示生成新知Showingroups.(Time:sixminutes)Firstthestudent...