Unit 13 We are trying to save the earth教案.docx
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Unit 13 We are trying to save the earth教案.docx
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Unit13Wearetryingtosavetheearth教案
Unit13We’retryingtosavetheearth!
一、教学目标:
1.语言知识目标
基本词汇:
litter,advantage,bottom,fisherman,coal,ugly,cost,wooden,plastic,takeaway,bin,shark,fin,method,cruel.Harmful,chain,ecosystem,industry,law,scientific,afford,reusable,transportation,recycle,napkin,upside,gate,bottle,president,inspiration,iron,work,metal,creativity,
基本词组:
beharmfulto,atthetop(ofsth.),takepartin,turnoff,takeaction,throwaway,putsth.togooduse,pull…down,bringback
基本句型:
We’retryingtosavetheearth!
Theriverusedtobesoclean.
Theairisbadlypolluted.
Noscientificstudieshaveshowedthatsharkfinsaregoodforhealth.
Weshouldhelpsavethesharks.
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。
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)保护环境的措施方法。
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、教学步骤:
SectionA1(1a-2d)
I.Presentation
Showthepictureoftheearthandtellstudentstheearthispollutednow.
Forexample:
(1)Thefactoriesthatburncoalpollutetheairwithalotofblacksmoke.
(2)Factoriesputwasteintotheriver.
(3)Peopleshouldthrowawaylitterinthebin.
(4)Therearemorecarsontheroad.
II.Learning
III.Listening
1.1bListenandcompletethesentences.
2.Listenagainandcheck(√)thesentencesyouhear.
IV.Practice
1.Role-playtheconversationin1c.
2.Makeconversationsusingthepollutionin1a.
V.Languagepoints
1.We’retryingtosavetheearth!
我们正在竭尽全力拯救地球!
trytodo=tryone’sbesttodo努力去做某事。
e.g.Everystudentshouldtrytostudyhardinordertostudyinauniversity.
为了进入大学学习,每个学生都应该努力学习。
2.Herearesomewordsrelatedtodifferentkindsofpollution.
berelatedto与…有关
e.g. Iamnot related to himinanyway.我和他无任何关系。
3.Everyoneinthistownshouldplayapartincleaningitup!
playapartin在……方面起作用
e.g.Agooddietplaysalargepartinhelpingpeoplelivelonger.
健康的饮食在帮助人们长寿方面起着非常大的作用。
playapart在……中扮演角色
e.g.HewasinvitedtoplayapartinthisTVplay.
他被邀请参加这个电视剧的演出。
4.Eventhebottomoftheriverwasfullofrubbish.
Yes,butpeoplearethrowinglitterintotheriver.
litter和rubbish都可指“垃圾”,用作不可数名词。
rubbish指“没用的东西(被扔或将要丢弃的无用的东西)”不可回收。
litter指“(室内或公共场所)乱扔的废物(纸屑、不要的包装纸、废瓶等)”还可回收
e.g.Throwtherubbishout.把垃圾扔出去。
Theroomisfullofrubbish.房间里堆满了垃圾。
Pickupyourlitterafterapicnic.野餐后将废弃物收拾好。
VI.Listening
1.2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.
A.landpollutionB.airpollution
C.noisepollutionD.waterpollution
Keys:
BA
2.2bListenagainandcompletethesentences.
1)Theairisbadlypollutedbecausethereare___________ontheroadthesedays.
2)Factoriesthatburncoalalso________theairwithalotofblacksmoke.
3)Thereisalsotoomuchrubbishandwaste.People_________________thingseveryday.
4)Peoplearealsolitteringin______________likeparks.Thisisturningbeautifulplacesintougly(丑陋)ones.
Keys:
morecarspollutearethrowingawaypublicplaces
3.Listenandanswerthequestions.
VII.Practice(2c)
Usetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.
Jason:
Theairhasbecomereallypollutedaroundhere.I’mgettingveryworried.
Susan:
Yes,Iusedtobeabletoseestarsinthesky.
Jason:
Theproblemisthat…
VIII.Discussion
Askstudentswhatweshoulddotosavetheearth.Helpstudentsanswer,turnoffthe
lightswhenyouleavearoom;stopridingincars;stopusingpapertowelsornapkins;recyclebooksandpaper.
IX.Reading
1.Read2dandcompletethechart.
2.Role-playtheconversation.
X.Summaryandlanguagepoints
1.Thisisturningbeautifulplacesintouglyones.
turn…into…把……变成……
2.It’sgoodforhealthanditdoesn’tcostanything!
costv.花费;使付出
指花费金钱,主语通常是物。
cost的过去式和过去分词均为cost。
根据句意用take,spend,pay或cost的适当形式填空。
1)Thatnewcar________ themlotsofmoney.
2)Mona__________50yuanonthebooksjustnow.
3)Itusually_______ meanhourtodomyhomework.
4)Youshould__________ sometimepractisingyourpronunciation.
5)Mybrother_______ 6,000yuanforthenewcomputeryesterday.
Keyscost spent takesspendpaid
3.Sotogether,ouractionscanmakeadifferenceandleadtoabetterfuture!
makeadifference(to…)表示(对……)产生影响或作用
XI.Exercises
用动词的适当形式填空。
1)We’retrying_______(save)theearth.
2)Thereusedto_____(be)cleanandbeautiful.
3)Therearetoomany______for________tocatch(fish).
4)It’sbadforenvironmenttouse_________(wood)chopsticks.
Keys:
tosavebefishfishermenwooden
XII.Thinkabout
Theearthisbadlypolluted.Pleasemakeaposterandthinkofwhatwecando.
XIII.Homework
1.Copythenewwordsandrememberthem.
2.Readthelisteningmaterialsof1b,2a.
反思:
____________________________________________
SectionA2(3a-3c)
I.Revision
(1)Role-play2d.
(2)TranslatethesesentencesintoEnglish.
①甚至是河底都满是垃圾。
②这个小镇上的每个人都应该参加打扫。
③骑自行车有其它的优点。
④我买外卖食品从来不拿木筷子和塑料叉子。
II.Leadin
(1)Teachertellsstudentstheearthisbadlypolluted.Whatshouldwedotosavetheearth?
Let’stakeaction.Forexample:
(2)Therearesomeanimalsareendangered.Weshoulddosomethingtoprotecttheanimalsandtheenvironment!
III.Discussion
(1)Haveyoueverseenashark?
(2)Whatdoyouknowaboutsharks?
IV.Reading
(1)Sharksareendangered,readthepassageandjudgethesentences.
(2)Completethefactsheetin3a.
V.Practice(3b)
(1)Readthepassageanddillintheblankswiththewordsinthebox.
(2)Retellthepassageaccordingtothewordsbelow.
VI.Languagepoints
1.Asharkcannolongerswimandslowlydies.鲨鱼不能再游泳然后慢慢死掉。
nolonger意思是“不再”
e.g.I’mnolongerastudent.我不再是个学生了。
有两个短语和nolonger同义,即not…anylonger和not…anymore,但他们侧重的方面不同。
nolonger和not…anylonger侧重时间。
e.g.Henolongerliveshere.=Hedoesn’tlivehereanylonger.
他不在这儿居住了。
(一个时间以前他住在这儿,过了这个时间,他就离开
了。
)
not…anymore侧重侧重程度和数量
e.g.Youcandrinknomore.=Youcan’tdrinkanymore.
你不能再喝了。
(喝酒的量到了一定程度,不能再继续下去了。
)
2.Thismethodisnotonlycruel,butalsoharmfultotheenvironment.
这种方法不但残忍而且对环境有害。
notonly…butalso…用于连接两个表示并列关系的成分,着重强调后者,其意为“不仅……而
3.Sharksareatthetopofthefoodchainintheocean’secosystem.
鲨鱼位于海洋生物系统食物链的顶部。
atthetopof在...最高地位;用最高[最大]的(速度,声音等)
e.g.Ilookedatthetopofhishead,hishairshinyandpartedsmoothly.
我看他的头顶,头发光亮,分得平滑。
Heshoutedatthetopofhisvoiceinorderthathemightbeheard.
他尽力大声叫喊,以便别人能听见。
4.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.
如果它们的数目降至过低,会给所有海洋生物带来危险。
此句复数形式的number表达全海洋中鲨鱼的总量。
当表示数值的高或低时,number要用high或low修饰。
5.Environmentprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.
VII.Homework
Write5measurestoprotecttheenvironment.
反思:
____________________________________________
SectionA3(GrammarFocus-4c)
I.Revision
1.Checkifyouknowthesephrases.
①不同种类的污染②河底
③把垃圾扔到河里④在…中起作用
⑤在中国南部⑥对……有害
⑦在……顶部⑧海洋生态系统
2.TranslatethesesentencesintoEnglish.
①甚至是河底都满是垃圾。
②这个方法不仅残酷还对环境有害。
③鲨鱼处于海洋食物链的顶部。
④许多人相信鱼翅对健康有好处。
II.GrammarFocus
Payattentiontothesentences.
1.现在进行时:
PresentProgressive
2.usedtodo与beusedtodoing
3.被动语态:
Passivevoice
4.现在完成时:
PresentPerfect
5.情态动词
1)情态动词本身有一定的词义,表示说话人的情绪、态度或语气,但不能单独作谓语,只能与其他动词构成谓语。
常见的有:
can(could),may(might),must,need,shall(should),will(would)等。
2)情态动词无人称和数的变化,后接动词原形。
否定式是在情态动词后面加not。
个别情态动词有过去式形式,可用来表达更加客气、委婉的语气。
e.g.Kencanclimbupthetresslikeakoala.
Tracycouldrideabicyclewhenshewasfiveyearsold.
Youmustn’tplaywithfire.Itisdangerous.
III.Practice
1.Workon4a.Fillintheblankswiththecorrectformsoftheverbsinbrackets.
2.Workon4b.Fillintheblankswiththeappropriatemodalverbsfromthebox.Thewordsare:
3.Workon4c.Makealistofthingsthatpeoplecandotohelptheenvironmentanddiscussyourlistwithyourpartner.
4.Discussion.
A:
Ithinkthateveryoneshouldusepublictransportation.
B:
Idisagree.It’sdifficultforparentswithyoungchildrentousepublictransportation…
IV.Languagepoints
1.Wecan’taffordtowaitanylongertotakeaction!
affordv.承担得起;提供,给予
affordtodosth.(常与can,bebleto连用)买得起;有足够的……
e.g.Wecan’taffordtopaysuchaprice.我们付不起这个价钱。
Dancingaffordsuspleasure.跳舞给我们带来快乐。
2.…saveelectricitybyturningoffthelightswhenyouleavearoom.
turningoff关掉
e.g.Pleaseturnthetelevisionoffbeforeyougotobed.
睡觉前请关掉电视。
拓展:
turn相关短语
turnaround转身
turnup调高(音量)
turndown调低;拒绝
turninto变成;进入
turnon打开,发动
turnoff关掉,关闭
turnouttobe结果是
turnover移交
V.Homework
Finishtheexercisesintheworkbook.
反思:
____________________________________________
SectionB1(1a—2e)
I.Revision
Role-playthisconversation.
II.Leadingin
(1)Tellstudentsweshoulddothesethingstoprotecttheenvironment.
Turnoffthelightswhenyouleavearoom;
(2)Whatcanwedotohelpsavetheearth?
Ranktheseitemsfromtheeasiest
(1)tothemostdifficult(5).(1a)
(3)Compareyouranswersin1awithyourpartner.
III.Listening1c&1d
(1)Listenagainandanswerthequestionsbelow.
IV.Practice
(1)Makeaconversationusingtheinformationfromthechartin1c.Saywhatistrueforyou.
(2)Guessinggame
Showsomepicturestostudentsandgetthemtoguesswhatthesethingsaremadefrom.
V.Reading
Usepicturestopresentationthenewwords.
(1)Readthepassageandanswerthequestionsbelow
(2)Readthepassageandcompletethechartbelow.
(3)Readparagraph2andanswerthequestions.
(4)Readparagraph3andanswerthequestions.
(5)Read
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