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)tree