人教版九年級英語下冊 （We're trying to save the earth!）SectionA 教學(xué)課件(第2課時)

We'retryingtosavetheearth!SectionA第2課時

Canyousharesomethingabouthowtoprotectourenvironment?Problem:airpollution,wastepollution...Solutions:recyclebooksandpaper,stopdrivingcars...Weshouldtakethebusorsubwayinsteadofdriving.Yes,orrideabike.It’salsogoodforourhealth.Forthewastepollution,Ineverusewoodenchopsticksinrestaurant.Andthrowrubbishinthebins.Pre-readingWhatdoyouknowabouttheseanimals?Doyouthinktheyareendangered?Why?Haveeverheardofthesharks?adj.瀕危的鯊魚Lookatthepictureandthetopic,What’sthemainideaofthispassage?Canyouguess?A.Thesharkfinsoupisfamousandexpensive.B.Thenumbersofthesharkshavefallenveryfast.C.Thesharksareendangeredintheworld.√While-readingParagraph1helpsavethesharksParagraph2thesharksareendangeredParagraph3thesharkfinsoupReadthepassagequickly.Thenmatcheachparagraphwiththemainidea.WheresharkfinsoupispopularNumberofsharkscaughtandtradedeveryyearHowgovernmentcanhelpTwoenvironmentalgroupsagainst“finning”southernChina70milliondeveloplawstostopthesaleofsharkfinsWildAidandtheWWF(魚)鰭Readthepassageaboutsharksandcompletethefactsheetbelow.3a1.Manypeopledonotrealizetheyarekillingawholeshark______theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,____iftheirnumbersdrop,theocean’secosystemwillbeindanger.whenReadthepassageagainandfillintheblankswiththewordsinthebox.3bsoalthoughifbutwhenso在…的頂端食物鏈生態(tài)系統(tǒng)3.Manythinkthatsharksaretoostrongtobeendangered,_____theyarewrong.4._________thereareno

scientific

studiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday___wedonotdosomethingtostopthesaleofsharkfins.butAlthoughifadj.科學(xué)的

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

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

Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharksbackintotheocean.

[探究]

cutoff切掉；切斷

Theelectricityhasbeencutoffagain.又停電了。[觀察2]

Thisisnotonlycruel,butalsoharmfultotheenvironment.[探究]

1.

crueladj.殘酷的；殘忍的

weshouldn’tbecrueltotheanimals.我們不應(yīng)該虐待動物。2.beharmfulto...對...有害，其同義短語bebadfor...Theairpollutionisharmfultoourhealth.空氣污染不利于身體健康。

[觀察3]

Withoutafin,asharkcannolongerswimandslowlydies.[探究]

nolonger不再；強調(diào)時間和動作不再持續(xù)相當(dāng)于not...anylongerShenolongerliveshere.=Shedoesn’tlivehereanylonger.她不再住在這兒了。[觀察4]

Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.[探究]

1.infact事實上；實際上Infact,thewordsalarycomesfromthewordsalt.事實上，薪水這個詞來自于鹽這個詞。2.Industryn.工業(yè)；行業(yè)。既可以做可數(shù)名詞也可以做不可數(shù)名詞，heavy/lightindustry重、輕工業(yè)Weneedtodeveloplocalindustries.我們需要發(fā)展地方工業(yè)。[觀察5]

Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.[探究]

thenumbersof...的數(shù)量；是thenumberof的復(fù)數(shù)形式。此處，numbers表示不同種類鯊魚的數(shù)量。Thenumbersofdifferentkindsoftreesaregrowingquickly.不同種類的樹的數(shù)量正在快速增長。thenumberof...的數(shù)量anumberof一些；若干+可數(shù)名詞復(fù)數(shù)做主語時，謂語動詞用單數(shù)[辨析]thenumberof與anumberof+可數(shù)名詞復(fù)數(shù)做主語時，謂語動詞用復(fù)數(shù)[觀察6]

Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.[探究]

lawn.法律；法規(guī)。lawyern.律師obeythelaw遵守法律breakthelaw違法Heisalawyerandhealwaystellusthateveryoneshouldobeythelaw.他是一名律師并且總是告訴我們要遵守法律。[觀察7]

Sofar,noscientificstudieshaveshownthatsharkfinsaregoodforhealth,sowhyeatthem?[探究]

sofar到目前為止；迄今為止。常用于現(xiàn)在完成時Iwasn'ttoohappywithwhatI'dwrittensofar.我對于目前已寫完的這些并不太滿意。1.They______theirfinswhenpeoplecatchsharks.(切掉）

2.Mr.Liis_________amusiclover.(不再）3.Hewasstanding____________thestairs.(在...頂端）4._______,hedoesn’tlikeEnglish.(實際上）5.Now,thiskindofcar________20percent.(下降了）Exercise

根據(jù)漢語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