人教版九年级英语下册 （We're trying to save the earth!）SectionA 教学课件(第2课时)

We'retryingtosavetheearth!SectionA第2课时

Canyousharesomethingabouthowtoprotectourenvironment?Problem:airpollution,wastepollution...Solutions:recyclebooksandpaper,stopdrivingcars...Weshouldtakethebusorsubwayinsteadofdriving.Yes,orrideabike.It’salsogoodforourhealth.Forthewastepollution,Ineverusewoodenchopsticksinrestaurant.Andthrowrubbishinthebins.Pre-readingWhatdoyouknowabouttheseanimals?Doyouthinktheyareendangered?Why?Haveeverheardofthesharks?adj.濒危的鲨鱼Lookatthepictureandthetopic,What’sthemainideaofthispassage?Canyouguess?A.Thesharkfinsoupisfamousandexpensive.B.Thenumbersofthesharkshavefallenveryfast.C.Thesharksareendangeredintheworld.√While-readingParagraph1helpsavethesharksParagraph2thesharksareendangeredParagraph3thesharkfinsoupReadthepassagequickly.Thenmatcheachparagraphwiththemainidea.WheresharkfinsoupispopularNumberofsharkscaughtandtradedeveryyearHowgovernmentcanhelpTwoenvironmentalgroupsagainst“finning”southernChina70milliondeveloplawstostopthesaleofsharkfinsWildAidandtheWWF(鱼)鳍Readthepassageaboutsharksandcompletethefactsheetbelow.3a1.Manypeopledonotrealizetheyarekillingawholeshark______theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,____iftheirnumbersdrop,theocean’secosystemwillbeindanger.whenReadthepassageagainandfillintheblankswiththewordsinthebox.3bsoalthoughifbutwhenso在…的顶端食物链生态系统3.Manythinkthatsharksaretoostrongtobeendangered,_____theyarewrong.4._________thereareno

scientific

studiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday___wedonotdosomethingtostopthesaleofsharkfins.butAlthoughifadj.科学的

Somepeopleliketoeatshark'sfinsoup,especiallyin_______China.Butgettingtheshark'sfinisvery_____.Whenpeoplecatchsharks,they_________theirfinsandthrowthesharksbackintotheocean.Thesharkslowlydiesbecauseitcan’t_______withoutthefin.Anditisalso________toenvironment.Sharkareatthe_____ofthefoodchain.Ifthe________ofsharksdropstoolow,itwillbreakthebalanceofnature.Pleasesaynotoeatingthesharkfinsoup,andtakeactiontosavethesharks!southerncruelcutoffswimharmfultopnumbers采取行动Fillintheblanks.Post-readingNosharkfin,fisheveryyear!Savetheanimals!Saveourselves!Savetheearth!Whatattitudeshouldwetaketowardssharks?Whatcanwedotosaveourselves?BecauseofNovelcoronavirus,weChinesehavehadaspecialSpringFestival.

Nobodywantstogetthedisease,buthowshouldwepreventNCPandprotectourselves?Thereisnodoubtthathuntingwildanimalshasabadinfluence.Foronething,itcausestheimbalanceofourecosystem.Foranother,itleadstothespreadofinfectiousdiseasesfromanimalstoushumanbeings,suchasSARSandNovelcoronavirus.Weshouldneverhavewildanimalsforfood.[观察1]

Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharksbackintotheocean.

[探究]

cutoff切掉；切断

Theelectricityhasbeencutoffagain.又停电了。[观察2]

Thisisnotonlycruel,butalsoharmfultotheenvironment.[探究]

1.

crueladj.残酷的；残忍的

weshouldn’tbecrueltotheanimals.我们不应该虐待动物。2.beharmfulto...对...有害，其同义短语bebadfor...Theairpollutionisharmfultoourhealth.空气污染不利于身体健康。

[观察3]

Withoutafin,asharkcannolongerswimandslowlydies.[探究]

nolonger不再；强调时间和动作不再持续相当于not...anylongerShenolongerliveshere.=Shedoesn’tlivehereanylonger.她不再住在这儿了。[观察4]

Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.[探究]

1.infact事实上；实际上Infact,thewordsalarycomesfromthewordsalt.事实上，薪水这个词来自于盐这个词。2.Industryn.工业；行业。既可以做可数名词也可以做不可数名词，heavy/lightindustry重、轻工业Weneedtodeveloplocalindustries.我们需要发展地方工业。[观察5]

Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.[探究]

thenumbersof...的数量；是thenumberof的复数形式。此处，numbers表示不同种类鲨鱼的数量。Thenumbersofdifferentkindsoftreesaregrowingquickly.不同种类的树的数量正在快速增长。thenumberof...的数量anumberof一些；若干+可数名词复数做主语时，谓语动词用单数[辨析]thenumberof与anumberof+可数名词复数做主语时，谓语动词用复数[观察6]

Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.[探究]

lawn.法律；法规。lawyern.律师obeythelaw遵守法律breakthelaw违法Heisalawyerandhealwaystellusthateveryoneshouldobeythelaw.他是一名律师并且总是告诉我们要遵守法律。[观察7]

Sofar,noscientificstudieshaveshownthatsharkfinsaregoodforhealth,sowhyeatthem?[探究]

sofar到目前为止；迄今为止。常用于现在完成时Iwasn'ttoohappywithwhatI'dwrittensofar.我对于目前已写完的这些并不太满意。1.They______theirfinswhenpeoplecatchsharks.(切掉）

2.Mr.Liis_________amusiclover.(不再）3.Hewasstanding____________thestairs.(在...顶端）4._______,hedoesn’tlikeEnglish.(实际上）5.Now,thiskindofcar________20percent.(下降了）Exercise

根据汉语意思完成下面的句子cutoffnolongeratthetopofInfactfallsby

1.

—WhynotaskBobtojoinusinthetriptothezootomorrow?—Everyoneinourgrouplovesanimals,buthealwaysseems____.A.anxiousB.personalC.cruelD.careless2.Greenhousegasesare_____totheenvironment.A.goodB.betterC.harmD.harmfulCD

3.Anumberofvisitors____visitingtheWestLakeandthenumberofthevisitors___increasing.A.are;isB.is;areC.are;areD.is;is4.Thewriterissopopularthathe____morethan200,000bookssofar.A.sellB.soldC.hassoldD.havesoldAC1.Pollutionis_______

(harm)toallthelifeonearth.2.Theenvironmentisgettingworse.Weshouldstop___________(cutdown)treesatwill(随意）.3.Thenumberofthestudentsinourschool____(be)twohundred.4.Sofar,no_________(科学的）studieshaveshownthatsharkfinsaregoodforhealth.scientificharmfuliscuttingdown

用括号里单词的适当形式填空SummaryPara.1sharkfinsoupispopularinsouthernChina.Para.2cruel:harmful:endangered:cutofftheirfinsandthrowthesharksbackintotheocean.bringdangertoalloceanlifeThenumbersofsomekindsofsharkshavefallenbyover9percentinthelast20to30years.Para.3environmentalprotectiongroupsnoscientificstudieshaveshownthatsharkfinsaregoodforhealth(teachingthepublicabout“finning”)(askedgovernmentstodeveloplaws)We’retryingtosavetheearth!SectionA第1课时

Bytheendofthisperiod,you’llbeableto:1.learnwordsandexpressionsaboutpollutionandenvironmentalprotection;2.summarizeandtalkaboutpollution’sproblems,causesandsolutions.LearningObjectivesairpollutionwaterpollutionWhatcanyouseeinthepictures?Whatkindsofpollutionarethey?land/waste/soilpollutionnoisepollutionWhatcanyouseeinthepictures?Whatkindsofpollutionarethey?waterpollutionland/waste/soilpollutionnoisepollutionairpollutionWhatkindofpollutionaretheytalkingabout?Listenandcompletethesentences.1bWhatwastheproblem?Whatcausedtheproblem?Howshouldtheproblembesolved?Theriverwas

.Eventhebottomoftheriverwasfullof

.Therewerenomore

forfishermentocatch.Peoplearethrowing

intotheriver.Factoriesareputting

intotheriver.Weshouldwritetothe

andaskthemto

thefactories.Everyoneshouldhelpto

theriver.reallydirtyrubbishfishlitterwastegovernmentclosedowncleanupTheriverwas

.Eventhebottomoftheriverwasfullof

.Therewerenomore

forfishermentocatch.Peoplearethrowing

intotheriver.Factoriesareputting

intotheriver.Weshouldwritetothe

andaskthemto

thefactories.Everyoneshouldhelpto

theriver.reallydirtyrubbishfishlitterwastegovernmentclosedowncleanupProblemsCausesSolutionsFromwhataspectsaretheytalkingabouttheproblem?A:TheairinourtownYes,butnowtoomuchtrafficB:airA:EveryoneinthetownB:Yeah,everyonesuchacomfortablethingtobreathefreelyeverywhereIwent.Itwasalwaysusedtobereallyfresh.isturningthefreshairintohaze.subwaymore.shoulddrivelessandtakethebusorgoodplacetolivein.shouldplayapartinmakingourtowna1cTalkaboutwhatthetownusedtobelike,whatcausedthepollutionanditssolutionbyusingthepictures.wastewaterMakeyourownconversation.1cWhatproblemsarementionedintheinterview?Oneproblemisthattheair

.Weusedtoseethe

clearly,butnowwehardlyeversee

anymore.Theotherproblemisthatthere’stoomuch

inthestreets.isbadlypollutedstarsblueskiesrubbishandwasteListentotheinterviewandanswerthequestion.2aairpollutionandlandpollutionKindsofpollutionCauses

Listenagainandcompletethesentences.airpollution1.Thereare

ontheroadthesedays.2.Factoriesthatburncoalalso

theairwithalotofblacksmoke.landpollution1.People

thingseveryday.2.Peoplearealsolitteringin

likeparks.morecarspollutearethrowingawaypublicplacesProblems

Causes

Whenwetalkaboutpollution,howdoweexpressproblemsandcauses?Structures

therebeusedtodobedonehavedone

becausetherebebedoingProblems

Causes

air/bebadlypolluted/usedto/stars/blueskiesmorecars/factories/burncoal/blacksmokeRetelltheconversationwiththegiveninformation.thereis/rubbishandwastethrowaway/everyday/litter/publicplacesJasonandSusanaretalkingaboutsomeenvironmentalproblemsthey’veseen……Theseareseriousproblemsforourenvironment.JasonandSusanaretalkingaboutsomeenvironmentalproblemstheySampleOneproblemisthattheairTheotherproblemisthatTheseareseriousproblemsforourenvironment.haveseen.clearly,butnowwehardlyeverseeblueskiesanymore.isthatfactoriesthatburncoalpollutetheairwithalotofblacksmoke.isbadlypolluted.WeusedtoseethestarsOnereasontherearemorecarsontheroadthesedays.It’salsobecausestreets.peoplethereistoomuchrubbishandwasteintheIt’sbecausepeoplearethrowingawaythingseveryday.Andarealsolitteringinpublicplaceslikeparks.Problems

Causes

air/bebadlypolluted/usedto/stars/blueskiesmorecars/factories/burncoal/blacksmokeRetelltheconversationwiththegiveninformation.thereis/rubbishandwastethrowaway/everyday/litter/publicplacesJasonandSusanaretalkingaboutsomeenvironmentalproblemsthey’veseen……Theseareseriousproblemsforourenvironment.1.Takethe

or

insteadof

.2.

.KindsofpollutionIdeasforsolvingtheproblems

AirpollutionWastepollution1.

whilegoingshopping.2.Nevertake

orplasticforkswhilebuying

.3.Throwrubbish

andkeeppublicplaces

and

.bussubwaydrivingRideabikeBringabagwoodenchopstickstakeawayfoodinthebinscleanbeautifulListenandfillintheblanks.2dJasonandSusan,whatareyourideasforsolvingtheseproblems?Correct.LiHua:LiJing:Whoareyournewfriends?LiHua:HelenSmithandZhangMing.Theyaretwooldclubmembers.Theyhelpedmewithmyself-introduction.Interviewer:Jason:Susan:Greatideas!Interviewer:Susan:Well,tocutdownairpollution,webusorsubwayshouldtaketheinsteadofdriving.Yeah,orrideabike.bikeriding.anything!ThereareotheradvantagesofIt’sgoodforhealthanditdoesn’tcostWhataboutwastepollution?Mmm,Ithinkshoppingsimplethingslikebringingabagtogocanhelp.Istarteddoingthatayearago.Role-playtheconversation.Role-playtheconversation.SolutionsWhenwetalkaboutpollution,howdoweexpresssolutions?Structures

Weshoulddosth.insteadofdoingsth.Simplethingslikedoingsth.canhelp.Neverdosth.Remembertodosth.It’sagoodideatodosth.It’sagreatideathat+sentence.…Thingswhichcanbedonebypeopleeveryday:stopridingincarsturnoffthelightswhenweleavearoomThingswhichcanbedonebypeopleeveryday:turnofftheshowerwhilewearewashingourhairrecyclebooksandpaperensurethatfactoriesgetridofwasteinaresponsiblewaynotallowactivitiesthatseriouslyendangertheenvironmentThingswhichhavetobedonebygovernmentsandorganizations:educatethepublicpreservetheforestspreserveendangeredspecies1.2.3.4.5.Becausetheymaycauseinconvenience.Tobereallyseriousaboutsavingtheearth,weneedtoknowtheconsequencesofouractions,orlackofaction,andbepreparedtoputthegreatergoodbeforeourpersonalneeds.WhydoesJuliarefuse