英语人教版九年级全册Unit13 SectionA 1a——1c

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1、Unit13We’retryingtosavetheearth!SectionA(1a---1c)一、教学目标：1.语言知识目标基本词汇：litter,advantage,bottom,fisherman,coal基本词组：beharmfulto,atthetop(ofsth.),takepartin,throw....into,put....into,cleanup,playapartin.基本句型：We’retryingtosavetheearth!Theriverusedtobesoclean.The

2、airisbadlypolluted.2.技能目标:能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto句型来描述环境污染和环境保护。3.情感目标:有环境危机意识，学会关注环境保护环境。二、教学重难点：1.教学重点：（1）能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto句型。（2）描述环境污染和环境保护的常用方法。2.教学难点：能正确运用现在进行时，现在完成时，被动语态，情态动词和usedto句型。三、教学准备教师准备本课时教材中所涉及的污染和环境保护的图片或教学幻灯片；涉及

3、课后巩固练习的幻灯片、多媒体。四、教学步骤SectionA1(1a-1c)I.PresentationShowthepictureoftheearthandtellstudentstheearthispollutednow.Forexample:(1)Thefactoriesthatburncoalpollutetheairwithalotofblacksmoke.(2)Factoriesputwasteintotheriver.(3)Peopleshouldthrowawaylitterinthebin.

4、(4)Therearemorecarsontheroad.（设计意图：通过各种污染的图片及功能句式的呈现，使学生对本单元的话题有个整体的感知，为接下来进一步的学习做铺垫）II.Learning（1a）BrainstormactivityT：(1)showsomepitcturesofthenewwordsandteachstudentstoreadandunderstandthem.(2)BrainstormactivityDivideStudentsinto3groupsandeachgroupmusts

5、peakoutwordsrelatedtopollutionasmuchastheycan.Then,putthemintodifferentpollutiongroups.Then,teacherswillputthewordsontheblackboard,andlistthecausesofeachpollution.Atlast,thewinnerwillbedecidedbyspeakingoutthemostwords.S:……Herearesomewordsrelatedtodifferent

6、kindsofpollution.Writethemintheboxbelow.Thenaddmorewords.loudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephonesnoisepollutionairpollutionwaterpollution_____________________________________________________________________________

7、___________________________________________________________________Keys :noisepollutionloudmusicplanesmobilephonesbuildinghousesairpollutionfactoriessmokingcarsbuildinghouseswaterpollutionshipsrubbishlitteringfactories(设计意图：通过头脑风暴及竞赛活动充发挥学生的主动性，同时，能培养学生的团结

8、协作能力。另外，对污染方面的词汇的积累。为接下来的听力教学做铺垫。)III.Listening（1b）1.GooverthepassivevoiceT:showsomepicturesandtalkaboutthem:eg.Theairispollutedbydirtywater.让学生分析该句的语言结构，复习被动语态的基本构成，并根据图片用被动语态造更多的句子。教师继续讨论图片，让学生填表：Whatwasthe