九年级英语全册unit6whenwasitinventedsectionb3a-selfcheck教案（新版）人教新目标版

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1、Whenwasitinvented教学目标知识与技能：1.复习一般过去时态被动语态的用法。2.能够用英语讲述自己所熟悉的某一发明的简单过程。3.能用本单元所学习的寓言故事等语言材料，进行完型填空。并用英语介绍某一发明的简要过程。过程与方法：Independentpreviewandcooperativelearning.情感态度价值观:了解世界上一些对人类有着重大意义的发明的相关信息，开阔学生的眼界，养成勤于思考，善于发现的好习惯，培养学生的创造精神。教学方法采用竞赛、小组合作等多种活动方式开展教学，注重因材施教。学习方法交际策略：学会与他人合作交流，并能把语言材料用到真实

2、的生活情景中去。教学准备Textbook,PPT教学过程设计意图Step1GreetingsGreetthestudentsasusual.Step2Revision1.ReviewtheexpressionsandsentencesinSectionB.2.Checkthehomework.Letstudentsintroducethehistoryofbasketball.Step3Leadin1.Askstudentswhichinventiontheylikebest.Studentsthinkabouttheirfavoriteinventions.2.Letso

3、mestudentstalkabouttheirfavoriteinventions.Step4Thinking1.Askstudentswhatthingstheydon’tliketodo.e.g.Problem:quicklytakingnotesinclass.Makestudentsbeinterestedinandgetinvolvedinthethisclassandrevisewhathavelearnedinthelastclass.2.Discussingroupsandthinkofaninventionthatcouldhelpyou.e.g.New

4、invention:aspecialpenWhatitisusedfor：takingnotesquicklyinclass3.Studentsdiscussingtheproblemsandtrytomaketheirownnotes.4.Letsomestudentsreadtheirnotestotheclass.Step5WritingWorkon3b1.Tellstudentstowriteadescriptionoftheirnewinvention.2.Thefollowingsentencestructuresmayhelpyou.常用句型：1)Ithink

5、…isaveryusefulinvention.我认为……是一项很有用的发明。2)…wasinventedby………是由……(某人)发明的3)…wasinventedin………是在……（某时间）发明的4)Itwasusedfor…它被用来……5)…ismadeof…是由……(材料)制成的Step6SelfCheckWorkonSelfCheck11.Readthewordsintheboxandmakesuretheyknowthemeaningofeachword.2.Readthepassageandtrytofillintheblankswiththeproperwo

6、rd.3.Readthepassageagain.Checkiftheformsofthewordsarecorrect.4.Letsomestudentsreadtheiranswers.Correctthemistakes.WorkonSelfCheck21.Tellstudentstorewritethesentencesusingthepassivevoice.2.方法指导：复习一般过去时态的被动语态的句子结构；复习将主动语态句子变为被动语态句子的过程。3.Studentsworkbythemselvesandtrytorewritethesentences.4.C

7、hecktheanswerswiththeclass.WorkonSelfCheck3FindoutinformationaboutaninventionyouwouldliketoknowmoreaboutandBypracticingwriting,students’speakingandwritingabilitiescanbeimproved.writesentencesbelow.Invention:________；When:___________；Who:__________；Purpose:____