Unit 2Saving the Earth Topic3公开课教案SB.docx
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Unit2SavingtheEarthTopic3公开课教案SB
Ⅰ.Materialanalysis本课是第二单元第三话题的第二课时。
主活动是1a。
1a通过Jane告诉Michael怎样才能成为一个环保人士来继续学习提建议的表达方式，同时也向学生继续传递更多的环保理念。
1b是检验学生的听力理解能力，1c通过完成表格，来巩固1a的内容。
2要学生根据句意来进行词语匹配和图文匹配。
3要学生根据上下文和首字母完成短文，这是对学生综合能力的考查。
短文不仅复习了已学的连接词，还学习了新的连接词：
afterall。
4这个小组活动实际由两部分组成：
调查和汇报。
在做这个活动时，要求注意重读、不完全爆破和连读。
目的在于纠正中国人学英语的薄弱环节：
不能在交流中得体地运用重读、不完全爆破和连读。
本课的各个环节都在传递环保理念。
这对学生的环保意识的培养是非常有意义的。
4这个活动要完整地体现，要比较长的时间，建议在课堂内完成语音语调部分即可。
其它环节可在下次课的复习环节进行，还可以把其中的某些环节作为家庭作业。
如：
让学生把自己的环保行为列成清单。
这样，下次课做调查时，就可以提高课堂效率。
Ⅱ.Teachingaims1.Knowledgeaims：
掌握本课的重点词汇和短语，继续学习并列句和提建议。
2.Skillaims:
掌握更多的提建议的表达方法。
了解英语中的一些谚语。
如：
Easiersaidthandone.能够通过4知道在用英语交流时需要运用连读、重读、不完全爆破等来使句子抑扬顿挫。
3.Emotionalaims:
（optional）鼓励学生在日常生活中始终保持良好的环保习惯。
4.Cultureawareness:
（optional）
Ⅲ.Thekeypointsanddifficultpoints
1.Keypoints:
Wordsandphrases:
action,oughtto,shutoff,afterall,electricity,hadbetter,insteadofdoingsth.,begoodfor,changeinto,pourinto
Sentences:
First,yououghttoshutofftheelectricitywhenyouleavearoom.
Second,you’dbetterwalkorrideabikeinsteadoftakingabusorataxiifyoutravelashortdistance.
Don’tuseplasticbags.
Easiersaidthandone.
Actionsspeaklouderthanwords.
Afterall,wehaveonlyoneearth.
Weshoulddoeverythingtoprotectit,orwe’llbepunishedandloseourhome.
Grammar:
compoundsentence
2.Difficultpoints：
掌握重读、连读和不完全爆破的技巧。
理解含有将来时被动语态的句子。
理解课文中的英语习语。
Ⅳ.Learningstrategies记住英语中的一些习语，在学习中有意识地积累更多的英语习语，并在恰当的语境中运用它们。
在2中，能够根据句子意思进行词语搭配。
在3中，要学会利用上下文，甚至全段、全文来获取信息。
还要结合已有的知识、经验来完成短文。
Ⅴ.Teachingaids教学新词的实物（如：
胶袋、布袋、电灯等）/录音机/PPT图片等。
Ⅵ.Teachingprocedures
Stage
（timeperiod）
Interaction
patterns
Teacheractivity
Studentactivity
Remarks
1
Revision
（5mins）
Groupwork
LettheSsactouttheirhomework.
T:
Wedidn’tfinishTask4inSectionAinthelastperiod.Haveyoufinisheditalready?
T:
Whichgroupwantstohaveatry?
Comeon!
T:
Let’sgiveGroupOneabighand！
T:
…
T:
Eachfamilyproduceswasteeveryday.Someofthewasteoughttobereused,someoughttobereducedandsomeoughttoberecycled.
Actouttheirhomework.
Ss:
Yes.
Group1
S1:
Wow!
Wehavegotsomuchgarbage!
Softdrinkcans,lunchboxes,plasticbottles,batteries,wastepaper,paperbagsandcupsandsoon.
S2:
Ithinksoftdrinkcans,plasticbottlesandwastepapershouldberecycled.Wecanbringthemtothegarbageshopandgetsomemoney.Perhapseachofuscanbuyanice-cream!
S3:
Youarealwaysreadytoeat.Youaretoofattoeat.Haha!
S4:
Howaboutlunchboxes.
S1:
Ithinkweshouldreuseit.
Group2
S1:
Ithinklunchboxesshouldbereused.
S2:
Whataboutwastepaper?
S1:
…
老师可以在点评总结时，引出“oughtto=should”。
2
Gettingstudents
readyforlearning
（3mins）
Classactivity
Presentsomerealobjectstolearnthenewwords.
T:
YouhavecollectedsomanythingsonClean-upDay,andIhavecollectedsome,too.Look!
What’sit?
T:
Thisone?
T:
Howaboutthis?
T:
Well,it’saclothbag.
T:
Andthese?
T:
Look!
Ihaveatoycar,too.
T:
（Putthebatteriesintothetoycar）.Wow!
It’smoving!
Why?
T:
Yes,youareright.Becauseoftheelectricity.Look!
（Turnoffthelight）WhenIshutofftheelectricity,thelightsareoff.（Turnonthelight）WhenIturnontheelectricity,thelightsareon.
Learnthenewwords.
Ss:
aplasticbag
Ss:
asoftdrinkcan
Ss:
a…
Ss:
batteries.
S1:
因为有电啦！
利用实物和动作来讲解新词，既直观又高效。
3
Pre-listening
（2mins）
Individualwork
LettheSsreadthequestionsin1btopredictthemainideaofthedialogandguessthemeaningof“action”.
T:
Next,Wearegoingtolistentoalongdialog.Butbeforelistening,youhadbetterreadthequestionsin1b.Trytopredictthemainideaofthedialog,andyoucanguessthemeaningofthenewword“action”.Thewordformationmayhelpyou.
Readthequestionsin1btopredictthemainideaofthedialogandguessthemeaningof“action”
对于新词“action”，既要让学生猜测，又要提供构词法：
act（v）+tion=action（n）。
4
While-listening
（3mins）
Individualwork
LettheSslistento1aandfinish1b.Checktheanswers.
T:
Now,pleaselistento1acarefullyanddo1b.
T:
Question1,whichanswerisright,xxx?
T:
xxx,you,please.
T:
“Actionsspeaklouderthanwords”isanEnglishidiom.Xxx,couldyouputitintoChinese?
T:
Yes.Ihopeyouwillreallyworkhard,notjustsay.Remember“Actionsspeaklouderthanwords.”
Listento1aandfinish1b.
S1:
C
S2:
B
S3:
说得好不如做得好。
S4:
行胜于言。
5
Post-listening
（12mins）
Individualwork
Classactivity
Step1:
LettheSsread1aandcompletethetablein1c.Checktheanswers.
T:
Now,let’sread1a.Whilereading,youshoulddo1c.Whenyoufinish,putupyourhand.
T:
Whowouldliketoshareyouranswers?
T:
Distance.Pleasefollowme,class,“distance”.
T:
Goonplease,S2.
Step2:
LettheSsread1aagainandfindthedifficultpointsandthesentenceswhichgivesuggestions.
T:
InSectionA,welearnedhowtogivesuggestions.Today,wewillgoonlearningit.Now,read1aagainandfindthedifficultpointsaswellasthesentenceswhichgivesuggestions.Whenyoufinish,pleaseraiseyourhand.
T:
Whohasanyquestions?
T:
No,“oughtto”ismodalverb.Itmeans“should”.Weusuallyuseitinthefollowingways:
Sb.oughttodosth.
Sb.oughtnot/oughtn’ttodosth.
Oughtsbtodo…?
T:
Whatelse?
T:
Mmm,it’sanEnglishidiom,too.I’dlikesomeonetosayitforme.xxx,canyou?
T:
Soundsgood,butitcanbebetter.
Ｔ:
Perfect!
Now,let’scheckthesuggestions.xxx,pleasetry.
Read1aandcompletethetablein1c.
S1:
Yououghttoshutofftheelectricity
S2:
dis….
Ss:
distance
S2:
distance,takeabusorataxi,walkorrideabike.
S3:
takeaclothbag,plasticbags.
Read1aagainandfindthedifficultpointsandthesentenceswhichgivesuggestions.
S1:
Is“oughtto”thesameas“haveto”?
S2:
Whatdoes“Easiersaidthandone”mean?
S3:
说比做更容易。
S4:
说来容易做来难。
S5:
First,yououghttoshutoff…aroom.
S6:
Second,you’dbetterwalk…forashortdistance.
S7:
…
情态动词oughtto的用法，老师讲以下几点就够了：
sb.oughttodosth.=sb.shoulddosth.
sb.oughtnot/oughtn’ttodosth.=sbshouldn’tdosth.
Oughtsbtodo…?
=Shouldsbdo…?
本课有两个英语习语。
要让学生自己去把它们译成汉语。
鼓励学生收集更多的英语习语。
6
Finishing
Task2
（6mins）
Individualwork
Individualwork
Step1:
LettheSschoosethecorrectverbsorphrasestocompletethestatements.
T:
Lookat2.Therearesevensentencesinthebox.Choosethecorrectverbsorphrasestocompletethestatements.Ifyoufinish,pleaseletmeknow.
T:
Shallwechecktheanswersnow?
T:
No.1,xxx,please.
Step2:
LettheSsmatchthestatementswiththepictures.Checktheanswers.
T:
Now,pleasematchthestatementswiththepictures.Whenyoufinish,putupyourhand.
T:
What’syourorder,xxx?
T:
Isheright?
Choosethecorrectverbsorphrasestocompletethestatements.
Ss:
OK.
S1:
Reduce
S2:
Shutoff
S3:
Recycle
S4:
…
Matchthestatementswiththepictures.Checktheanswers.
S1:
2-6-4-3-1-7-5.
Ss:
Yes.
7
Finishing
Task3
（9mins）
Individualwork
Individualwork
Classactivity
Step1:
LettheSsreadthepassageandfillintheblankswithcorrectwords.
T:
Now,let’smoveto3.Yousee3isapassagewithmanyblanks.Youshouldcompletetheblanksaccordingtothecontextandthefirstletter.Whenyoufinish,putupyourhand.
T:
Well,wewon’tchecktheanswersnow.Youwillchecktheanswerwhilelistening.
Step2:
LettheSslistentothepassageandchecktheanswersatthesametime.
T:
Now,youwilllistentothepassage.Pleasechecktheanswerswhilelistening.
T:
Let’schecktheanswerstogether.Thefirstoneis…
Step3:
LettheSsread3againandfindthecompoundsentences.
T:
Welearnedcompoundsentencesyesterday.Inthispassage,therearesomecompoundsentences.Pleasereadthepassageagain,andfindoutthecompoundsentences.
T:
Whowantstohaveatry?
T:
Goodjob.Infact,“Afterall,wehaveonlyoneearth”isacompoundsentence,too.
Readthepassageandfillintheblankswithcorrectwords.
Ss:
while
Ss:
and
Ss:
…
Read3againandfindthecompoundsentences.
S1:
Somethingswe…whilesomearebad.
S2:
Wehave…,anditissicknow.
S3:
…
让学生不要盲目地填空，一定要根据上下文，甚至是全段、全篇来确定。
通过让学生找出连接词来复习并列句，同时学习：
afterall。
8
Finishing
Task4
（2mins）
pairwork
LettheSsreadthesentencesin4,payingattentiontothestress,liaison,incompleteplosionandintonation.
T:
Now,readthesentencesinpairs,andpayattentiontothestress,liaison,incompleteplosionandintonation.
T:
Whichpairwouldliketohaveatry?
Readthesentencesin4,payingattentiontothestress,liaison,incompleteplosionandintonation.
连读和失去爆破是学生学英语的难点，老师可适当地补充相关知识。
9
Summarizingandassigninghomework
（3mins）
Classactivity
Step1:
LettheSssumupthissection.
T:
Now,let’ssumupthissection.Whathaveyoulearnedtoday?
T:
Sohowdoyougivesuggestions?
T:
Wonderful!
Whatelse?
T:
Thenhowtomakeupcompoundsentences?
T:
Hownice!
Youdidworkhardinclass!
Step2:
assignHMK
T:
WehavelearnedhowtobeagreenerpersonfromSectionAandB.Ifeveryonetrieshisbesttobeagreenerperson,theenvironmentwillbebetter.Whatdoyoudotoprotecttheenvironment?
Thinkaboutitandmakealistaboutwhatyoudotobeagreenerperson.It’syourHMKfortoday.
Sumupthissection.
S1:
更多提建议的方法。
S2:
Weuse“should,shouldn’t,oughtto,hadbetter”togivesuggestions.
S3:
还有“Don’t”
S4:
还有肯定祈使句。
S5:
并列句。
S6:
用while,but,and,or
S7:
Afterall
Ⅶ.Blackboarddesign
Whatcanwedoathometoprotecttheenvironment?
SectionB
Wordsandphrases:
action
electric（电的）+ity=electricity
distance
cloth
oughtto
shutoff
afterall
Grammar:
givesuggestions:
should/shouldn’t,oughtto,don’t…
compoundsentence
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