【文档说明】《Unit 2 Topic 1 Pollution has causes too many problems》教案4-九年级上册英语仁爱（科普版）.doc，共(11)页，72.000 KB，由小喜鸽上传

转载请保留链接：https://www.ichengzhen.cn/view-105105.html

以下为本文档部分文字说明：

U2T1SA1Unit2SavingtheEarthTopic1Pollutionhascausedtoomanyproblems.SectionAⅠ.Materialanalysis本课是九年级第二单元第一话题的第一课时。主活动是1a。1a通过对比“WestHill”今昔的环境变化，引

出本话题的污染问题，巩固现在完成时与一般过去时的用法及区别。1b要求学生能够听懂一般过去时态和现在完成时态，也就是要分清1b所提及的词语所伴随的时间。1c则是在阅读之后再找出“西山”所发生的变化。2通过观察图片内容，结对编对话，描述污染前后的情况，进一步训练学生口头表达能

力和对一般过去时和现在完成时的运用能力。3通过听并记录“动物的生存现状”，了解环境污染带给动物的危害，继续提高学生的听力水平。任务4的口语表达，培养学生的说的技能，检测对本课的掌握情况。通过本课的学习，培养学生关注环境问题的意识。Ⅱ.Teachingaims1.K

nowledgeaims：掌握本课的重点词汇和短语，巩固一般过去时和现在完成时的用法和区别。能够用一般过去时和现在完成时描述过去和现在的变化。正确使用therebesth./sb.doingsth.来表达“有某人/物正在做某事”。九年级上册教学案例设计22.Skillaims:能听懂描述环境变化的

对话，区别一般过去时和现在完成时的用法。能理解和运用一般过去时和现在完成时来进行听、说、读、写活动。3.Emotionalaims:(optional)让学生了解环境污染的严重性，并树立环保意识。4.Cultureawareness:

(optional)通过课文的学习，让学生了解环境的变化，关注全球的环境问题。Ⅲ.Thekeypointsanddifficultpoints1.Keypoints:Wordsandphrases:bee,butterfly,mess,shame,several,poll

ute,waste,villager,destroy,cutdown,goodness,pour,seesb./sth.dosth.,seesb./sth.doingsth.,cutdown,mygoodnessSen

tences:Whatashame!/Whatamess!Theflowersandgrasshavegone!Whathashappenedhere?Therebesth./sb.doingsth.Thereareseveralfactoriespouringwastewaterintoth

estream.Everythinghaschanged.Grammar:differencesbetweenSimplePastandPresentPerfecttense.U2T1SA32.Difficultpoints：正确使用therebesth./sb

.doingsth.来表达“有某人/物正在做某事”。区别使用短语seesb./sth.dosth.和seesb./sth.doingsth.。能正确地以口头和书面形式区别使用一般过去时和现在完成时。Ⅳ.Learningstrategies通过引导学生

在听前阅读1b和3，培养学生形成听前熟悉、预测听力材料的习惯。通过朗读1a和2，引导学生模仿已有对话，编写新的对话。通过1c，培养学生整合对话信息，将对话转换为语篇的能力。Ⅴ.Teachingaids图片（关于校园周边环境变化对比图或者影像资料），录音机，幻灯

片等。Ⅵ.TeachingproceduresStage(timeperiod)InteractionpatternsTeacheractivityStudentactivityRemarks1Gettingstudentsreadyforlearning（1min)Classa

ctivityGreetandtalkabouttheweather.LeadtheSstodiscusstherightplaceforapicnic.T:Hi,boysandgirls!It’saniceday,isn’tit?Greetandfoc

ustheirattentionontheteacher....通过谈论天气，要去野炊，吸引学生的注意力，也符合课文主题，使学生专注于课堂。如果天气不好，九年级上册教学案例设计4Ss:Yes.T:Wouldyouliketohaveapicnicwithme?Ss:I’dli

kethat./Soundsgreat.T:Sowhereshallwego?Ss...Ss:Yes.Ss:I’dlikethat./Soundsgreat.Ss...也可以做好周末的野炊计划。2Lead-in(3-5mins)GroupworkLettheSsdiscusswheret

ohaveapicnic.Encouragethemtostatethereasons.T:Nowworkingroups,choosethebestplaceforapicnicandtelltheclasswhyy

ouchoosethatplace.Ss…T:OK,telluswheretohaveapicnic.Why?S1:Ithink…isthebestchoice.Theairthereisfresh.Wecanflykitesonthegrass.S2…Discussw

heretohaveapicnicandstatethereasons.…Ss…S1:Ithink…isthebestchoice.Theairthereisfresh.Wecanflykitesonthegrass.S2…先让学生讨论出合适的野炊地点，老师再出示西山没被

污染的图片来吸引学生的注意。当学生兴趣高涨时，又呈现被污染后的图片，让学生满怀兴趣和疑问去了解西山被污染前后的状况，更好的体会一般过去时和现在完成时在语境中的运用，同时也突破了单词关。3Pre-listeningClassa

ctivityPresenttwopicturesoftheWestHillandWatchthepicturesoftheWestU2T1SA5(5-7mins)describethechanges.Teachthenewword

sandsomedifficultsentences.(ShowtheoldpictureoftheWestHilltotheSs)T:Lookatthisbeautifulpicture.Kangkangandhisfriendshadapi

cnictheretwoyearsago.Canyouguesswhereitis?Ss:Yes,it’stheWestHill.T:Whatcanyouseeinthepicture?S1:Someflowers,acleanriveranda

bigtree…T:Right.TheWestHillisabeautifulplace.Canyouseethebeesandbutterfliesdancingthere(Pointtothebeesandbutt

erflies,andthenwritedownthewordsandphrasesontheBb)T:Sodoyouwanttogothereforapicnic?Hill,guessthemeaningandpronunciationofthewordsaccordingtothein

troductionaboutthechangesoftheWestHill.Ss:Yes,it’stheWestHill.…S1:Someflowers,acleanriverandabigtree……在教授

新单词时，老师应当同时呈现单词和音标，让学生运用所学音标自己解决单词的读音问题，如果学生发音不准，老师要及时更正。再根据图片和讲解，引导学生大胆的猜测词义和部分难句的意思，为1a中的听力对话扫障碍。九年级上册教学案例设计6Ss:Yes…T:

I’dliketo.Butnowithaschangedalot.Lookatthispicture.Doyoulikeit?Ss:No.(Teacherpresentsthenewwordsanddifficultsent

encesthroughthedescriptionofthepicture.)Ss:Yes……Ss:No.4While-listening(10mins)IndividualworkStep1:LettheSslistento1atwiceanddo1balone.T:Listent

othetapecarefullyandtrytomarkthewordswithPorN.…T:Nowpleasecheckanswersinyourgroup.S1:“Beautiful”isinthepast.S

2:“Butterflies”areinthepast.S3:“Dirty”isnow.…ListenandmarkthewordswithPorNaccordingtothetape..S1:“Beautiful”isinthepast.S2:“

Butterflies”areinthepast.S3:“Dirty”isnow.…本课对话不长，词汇量不大，可以直接在组内核对答案。如果对话较长，难度较大，建议先听两遍后再读，通过读来检查听的结果。U2T1SA7GroupworkStep2:LettheSsli

stento1aagainandpayattentiontothepronunciationandtheintonation.Thenpractice1aingroupsandroleplayit.T:R

ead1awithyourgroupmembersandactitout.Listento1aagainandpayattentiontothepronunciationandtheintonation.Thenpractice1aingro

upsandroleplayit.分角色朗读是培养语感，增强自信，提高兴趣的基本方法之一。让学生通过读的方式感知一般过去时和现在完成时的差别后，在2中马上运用，编写新的对话，可以让学生完整的体会两种时态的区别，也突破了本课的语法关。5Post-listening(20m

ins)GroupworkStep1:LettheSsread1aaloudandfilltheblanksin1cingroups.T:Read1aaloudandfillintheblanksin1casquicklyaspossi

ble,andthendiscusstheanswerwithyourgroupmembers.…T:Nowchecktheanswertogether.S1:abeautifulplaceReadandfilltheblanks

in1casquicklyaspossible.S1:abeautifulplace做完听力练习后，再让学生通过读的方式在具体情况中感知两种时态的差别，并通过相应的任务去掌握它们的用法。九年级上册教学案例设计8PairworkS2:lostofflowersandgrassS3:…Step

2:LettheSsobservethepicturesandstudytheexamplein2andtrytomakenewdialogsaccordingtothepicturesandthegivenwords.The

nactoutthedialogs.T:Nowstudytheexamplein2andtrytomakenewdialogswiththeirpartnersaccordingtothepicturesandthegivenwords.Thenactoutthedialogs.…

T:OK,whocantry?S1:ThereweremanytreeswhenIvisitedthehilllastyear.S2:Butnowthetreeshavegone.S1:Whathashappenedhere?S2:Thef

armershavecutthemdown.S2:lostofflowersandgrassS3…Observethepicturesandstudytheexamplein2andtrytomakenewdialogswiththeirpartnersaccordingtothepic

turesandthegivenwords.Thenactoutthedialogs.S1:ThereweremanytreeswhenIvisitedthehilllastyear.S2:Butnowthetreeshavegone.S1:Whathashappen

edhere?S2:Thefarmershavecutthem该环节是让学生通过听的方式，继续学习一般过去时和现在完成时的区别，并引导学生关注动物的生存问题和环境污染的严峻形势。教师要注意在情感态度教学方面的引导。U2T1SA9Individualwork…

Step3:LeadtheSstolookatthepicturesandlistentothesentencesoncetonumberthem.Thenlistentothemtwicetocompletethesentences.T:Lookatthe

sepicturesin3,listenandnumberthem....T:OK,nowchecktheanswerstogether.Therightorderis…T:Welldone.Nowlistenagainandfillinthebl

anksin3.Whenlistening,youcanonlywritethefirsttwolettersofeachwordorthefirstwordofeachphrase.Afterfinish

inglistening,youhavesometimetocompleteyouranswers.Ready?…down.Lookatthepicturesandlistentothesentenc

esoncetonumberthem.Thenlistentothemtwiceandcompletethesentences.九年级上册教学案例设计10T:OK.Nowyouhaveoneminutetocomplet

ethesentence.Payattentiontotheformofverbs.…T:OK,timeisup.Let’schecktheanswers.S1:Peoplehavecutdowntoomanytrees.S2:…manytrees….S3:…butnowthey…S4…

S1:Peoplehavecutdowntoomanytrees.S2:…manytrees….S3:…butnowthey…S4…6Summarizingandassigninghomework(3mi

ns)GroupworkStep1:SumupthemaincontentofthisclassandthekeypointsT:Let’sgothroughwhatwehavelearnedtoday.Group1and2,

pleasesumupthenewwords.Group3and4,pleasesumupthekeyphrasesandthedifficultsentences.Group5and6,pleasesumupt

hegrammarinthisclass.Speakoutthekeywords,phrases,sentencesandgrammarpointsingroups.总结的方法分很多种，教师可以根据需要和学生的实际情况安

排。该环节处理时，要重点区别两种时态的用法，学生总结后，教师可以适当点拨或者出示相应的习题加以巩固训U2T1SA11GroupworkStep2:HMK:1.Writeapassageaboutpollutioninsomeplaceyouknow.2.Talkabouthowm

anykindsofpollutionyouknowandmakealist.1.Writeapassageaboutpollutioninsomeplaceyouknow.2.Talkabouthowmanykindsofpollutionyo

uknowandmakealist.练。Ⅶ.BlackboarddesignPollutionhascausedtoomanyproblems.SectionAWordsandphrase:bee,butterfly,mess,shame,several,pollute/p

ollutionwaste,villager,destroy,cutdown,goodness,seesb./sth.dosth.,seesb./sth.doingsth.,poursth.into…Sentences:Whatashame!/Whatamess!Theflowersandgra

sshavegone!Whathashappenedhere?Thereareseveralfactoriespouringwastewaterintothestream.Everythinghaschanged.