人教版九年級(jí)英語(yǔ)下冊(cè) （We're trying to save the earth!）SectionA 課件(第2課時(shí))

We’retryingtosavetheearth!SectionA第2課時(shí)

LearningObjectivesBytheendofthisperiod,you’llbeableto:1.readforgeneralideaswiththehelpofamindmap;2.learnabouttheimportanceandsomewaysofprotectingsharks;3.reviewtheuseofconjunctions,tenses,passivevoiceandthestructure

usedtodo

incontexts.Pre-reading1.Whatdoyouknowaboutsharks?2.Doyouthinksharksareendangered?Why?Pre-reading1.Whatdoyouknowaboutsharks?2.Doyouthinksharksareendangered?Why?Predictanswersaccordingtothetitleandthepicture.Savethesharks!Theyliveintheoceanandhavesharpteeth.Yes.BecauseIknowpeoplemaykillthemfortheirfinsandoil.Also,thetitletellsustosavethem.Savethesharks__________aboutthesharkfinsoupthe__________ofkillingthesharksdifferent__________ofsavingsharksReadandcompletethemindmapwithproperwords.FirstreadingSavethesharks__________aboutthesharkfinsoupthe__________ofkillingthesharksdifferent__________ofsavingsharksfactswaysharmFirstreadingReadandcompletethemindmapwithproperwords.Whereissharkfinsouppopular?1Howdopeopledealwiththesharkswhentheycatchthem?2Whyiscuttingoffsharks’finscruelorharmful?3Howmuchhavethenumbersofsomekindsofsharksfalleninthelast20to30years?4Whathavethetwoenvironmentalprotectiongroupsdone?5SecondreadingReadandanswerthequestionsbelow.Manyhaveheardofsharkfinsoup.

ThisfamousandexpensivedishisespeciallypopularinsouthernChina.

Butdoyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup?1.Whereissharkfinsouppopular?InsouthernChina.SecondreadingReadandanswerthequestionsbelow.Manyhaveheardofsharkfinsoup.

ThisfamousandexpensivedishisespeciallypopularinsouthernChina.

Butdoyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup?Secondreading1.Whereissharkfinsouppopular?InsouthernChina.tobetoldaboutsomethingReadandanswerthequestionsbelow.Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.

Thisisnotonlycruel,butalsoharmfultotheenvironment.

Withoutafin,asharkcannolongerswimandslowlydies.

Sharksareatthetopofthefoodchainintheocean’secosystem…2.Howdopeopledealwiththesharkswhentheycatchthem?Peoplecutofftheirfinsandthrowthesharkbackintotheocean.SecondreadingReadandanswerthequestionsbelow.Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.

Thisisnotonlycruel,butalsoharmfultotheenvironment.

Withoutafin,asharkcannolongerswimandslowlydies.

Sharksareatthetopofthefoodchainintheocean’secosystem…2.Howdopeopledealwiththesharkswhentheycatchthem?Peoplecutofftheirfinsandthrowthesharkbackintotheocean.SecondreadingremovesomethingwithaknifeorasimilartoolReadandanswerthequestionsbelow.Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.

Thisisnotonlycruel,butalsoharmfultotheenvironment.

Withoutafin,asharkcannolongerswimandslowlydies.

Sharksareatthetopofthefoodchainintheocean’secosystem…2.Howdopeopledealwiththesharkswhentheycatchthem?Peoplecutofftheirfinsandthrowthesharkbackintotheocean.SecondreadingremovesomethingwithaknifeorasimilartoolatthehighestorthemostimportantrankofsomethingReadandanswerthequestionsbelow.thefoodchainintheoceantheocean’secosystemSecondreading…Thisisnotonlycruel,butalsoharmfultotheenvironment.

Withoutafin,asharkcannolongerswimandslowlydies.

Sharksareatthetopofthefoodchainintheocean’secosystem.

Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.

Manybelievethat…3.Whyiscuttingoffsharks’finscruelorharmful?Becausewithoutafin,asharkcannolongerswimandslowlydies.Also,iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Readandanswerthequestionsbelow.Secondreading…Thisisnotonlycruel,butalsoharmful

totheenvironment.

Withoutafin,asharkcannolongerswimandslowlydies.

Sharksareatthetopofthefoodchainintheocean’secosystem.

Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.

Manybelievethat…3.Whyiscuttingoffsharks’finscruelorharmful?Becausewithoutafin,asharkcannolongerswimandslowlydies.Also,iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.beharmfulto:causingdamageorinjurytosomebodyorsomethingReadandanswerthequestionsbelow.Secondreading…Thisisnotonlycruel,butalsoharmful

totheenvironment.

Withoutafin,asharkcannolongerswimandslowlydies.

Sharksareatthetopofthefoodchainintheocean’secosystem.

Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.

Manybelievethat…3.Whyiscuttingoffsharks’finscruelorharmful?Becausewithoutafin,asharkcannolongerswimandslowlydies.Also,iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.beharmfulto:causingdamageorinjurytosomebodyorsomethingtobecomeweaker,lowerorlessReadandanswerthequestionsbelow.Secondreading…Manybelievethatsharkscanneverbeendangeredbecausetheyarethestrongestintheirfoodchain.

Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.

Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.4.Howmuchhavethenumbersofsomekindsofsharksfalleninthelast20to30years?Byover90percent.Readandanswerthequestionsbelow.SecondreadingEnvironmentalprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.

Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.

Sofar,noscientificstudieshaveshownthatsharkfinsaregoodforhealth,sowhyeatthem?

Helpsavethesharks!5.Whathavethetwoenvironmentalprotectiongroupsdone?Theyareteachingthepublicabout“finning”andhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.Readandanswerthequestionsbelow.SecondreadingEnvironmentalprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.

Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.

Sofar,noscientificstudieshaveshownthatsharkfinsaregoodforhealth,sowhyeatthem?

Helpsavethesharks!5.Whathavethetwoenvironmentalprotectiongroupsdone?Theyareteachingthepublicabout“finning”andhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.tograduallygroworbecomebigger,moreadvanced,strongerReadandanswerthequestionsbelow.SecondreadingEnvironmentalprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.

Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.

Sofar,noscientificstudieshaveshownthatsharkfinsaregoodforhealth,sowhyeatthem?

Helpsavethesharks!5.Whathavethetwoenvironmentalprotectiongroupsdone?Theyareteachingthepublicabout“finning”andhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.tograduallygroworbecomebigger,moreadvanced,strongerbegoodfor:dogoodtoReadandanswerthequestionsbelow.Thirdreading3bReadandfillintheblankswiththewordsinthebox.butsoalthoughifwhen1.Manypeopledonotrealizetheyarekillingawholeshark________theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,______iftheirnumbersdrop,theocean’secosystemwillbeindanger.3.Manythinkthatsharksaretoostrongtobeendangered,______theyarewrong.4.__________therearenoscientificstudiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday______wedonotdosomethingtostopthesaleofsharkfins.Thirdreading3bReadandfillintheblankswiththewordsinthebox.butsoalthoughifwhen1.Manypeopledonotrealizetheyarekillingawholeshark________theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,______iftheirnumbersdrop,theocean’secosystemwillbeindanger.3.Manythinkthatsharksaretoostrongtobeendangered,______theyarewrong.4.__________therearenoscientificstudiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday______wedonotdosomethingtostopthesaleofsharkfins.sowhenbutAlthoughifDearneighbors,Somepeopleliketoeatsharkfinsoup,especiallyin__________China.Butgettingthesharkfinisvery_______.Whenpeoplecatchsharks,they__________theirfinsandthrowthesharksbackintotheocean.Thesharksslowlydiebecausetheycan’t_______withoutfins.Andit’salso_______________theenvironment.Sharksareatthe_______ofthefoodchainintheocean.Ifthenumberofsharks_______toolow,thebalanceofthenaturewillbebroken.Pleasesaynotoeatingsharkfinsoupandtakeactiontosavethesharks!

HuaxingCommunityYourcommunityhascalledforactiontorefusesharkfinsoup.Finishtheletterwithproperwordsinthepassage..southerncruelcutoffliveharmfultotopdropsPost-readingWhatcanwedotosavethesharks?neverusesharkproductsputuppostersaroundourneighborhoodsoronlinevolunteerinsharkprotectionorganizationscallforthegovernmenttodeveloplawstostopthesalesofsharkfins.Post-readingFurtherthinkingExtendedknowledgeReadandthinkaboutthefollowingquestions.1.Whyiseatingsharkfinsoupnolongerfashionable?2.Doyouagreethatthesharksandoceansaretoofarawayfromus?Whyorwhynot?Millionsofsharkswerekilledeachyeartosupplythedemandforsharkfinsoup.Asaresult,1/3oftheworldsharkspeciesarefacingextinction.Thereisurgentneedtoeducatepeopletochange.AsChinesepeoplearebecomingmoreawareofwildlifeconservation,eatingsharkfinsoupisnolongerfashionable.Thegovernmenthasalsosetupcampaignbanningsharkfinsoupfromtheofficialbanquets.

Thecampaignhadbeendramaticandthechangeishuge.AftertheChinesegovernmentreleasedtheban,sharkfinsalesdeclined50%thewholeyear.Manypeoplestoppedeatingsharks.

Althoughsharksarefarawayfromus,peopleliveinthewholeworld.Wesharetheoneglobewitheveryone,soeveryonereallyhavethepowertochange.Whenthebuyingstops,thekillingwillstoptoo.Progresshavebeenimpressive,butthecampaignwillcontinue.BecauseChinesepeoplearebecomingmoreawareofwildlifeconservation,andthegovernmenthassetupacampaignbanningsharkfinsoupfromofficialbanquets.ExtendedknowledgeReadandthinkaboutthefollowingquestions.1.Whyiseatingsharkfinsoupnolongerfashionable?No.Becauseweshareoneglobeandeveryoneshouldchangeandmakeadifference.ExtendedknowledgeReadandthinkaboutthefollowingquestions.2.Doyouagreethatthesharksandoceansaretoofarawayfromus?Whyorwhynot?SummaryIntoday’slesson,youhave:readforgeneralideaswiththehelpofamindmap;1.learnedabouttheimportanceandsomewaysofprotectingsharks;2.reviewedtheuseofconjunctions,tenses,passivevoiceandthestructureusedtodoincontexts.3.Whenbuyingstops,thekillingcan,too.Thefutureofendangeredanimalsisinourhands.HomeworkFillinthechartabouttwoendangeredanimalsandsharewithyourclassmates.YoucansearchtheInternetformoreinformation.InformationAnimaloneAnimaltwofactsabouttheanimaltheharmofnotsavingtheanimalwaysofsavingtheanimalsSectionAUnit13We'retryingtosavetheearth!

課前自主預(yù)習(xí)單詞闖關(guān)1.漁民；釣魚(yú)的人n.________→(復(fù)數(shù))________2.丑陋的；難看的adj.________→(反義詞)漂亮的；美麗的adj.______________3.優(yōu)點(diǎn)；有利條件n.________→(反義詞)缺點(diǎn)；不利條件n._________

fishermanfishermenuglypretty/beautifuladvantagedisadvantageSectionA單詞闖關(guān)4.木制的；木頭的adj.________→(同根詞)木頭；木材n.________5.有害的adj.________→(同根詞)危害；損害n.傷害v.________→(反義詞)無(wú)害的；沒(méi)有害處的adj.________6.科學(xué)上的；科學(xué)的adj.________→(同根詞)科學(xué)n.________

wooden

woodharmfulharm

harmlessSectionAscientificscience短語(yǔ)互譯1.起作用；有影響_____________2.參加____________3.關(guān)掉____________4.付費(fèi)；付出代價(jià)_________5.充滿____________

makeadifferencetakepartinturnoff

payforSectionAbefullof短語(yǔ)互譯6.打掃，清理____________7.在……中起作用____________8.減少；砍伐____________9.代替；而不是____________10.到目前為止____________

cleanupplayapartin…cutdowninsteadof

SectionAsofar短語(yǔ)互譯11.引導(dǎo)；導(dǎo)致____________12.采取行動(dòng)____________13.atthetopof…______________14.cutoff__________15.beharmfulto…____________16.indanger____________

leadtotakeaction在……頂部或頂端切除SectionA對(duì)……有害處于危險(xiǎn)中句型在線1.我們正在盡力拯救地球！________________tosavetheearth！2.但是它以前很干凈！Butit________________________soclean！

We'retryingusedtobeSectionA句型在線3.還要記得把垃圾扔進(jìn)垃圾桶，保持公共場(chǎng)所的整潔和美麗，(這是)為了每個(gè)人。Andremember________________rubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryone.4.沒(méi)有了鰭，鯊魚(yú)就不能再游泳了，然后慢慢死去。Withoutafin,asharkcan________________swimandslowlydies.

tothrowSectionAnolonger句型在線5.如果它們的數(shù)量降至過(guò)低，會(huì)給所有海洋生物帶來(lái)危險(xiǎn)。Iftheirnumbers________toolow,it________________dangertoalloceanlife.6.到目前為止，沒(méi)有科學(xué)研究表明魚(yú)翅對(duì)健康有好處，所以為什么吃它們呢？Sofar,noscientificstudies________________thatsharkfinsaregoodforhealth,sowhyeatthem？

dropSectionAwillbringhaveshown課文初探閱讀3a，判斷句子正(T)誤(F)。()1.Thepassageisaboutsavingthesharks.()2.Asharkcannolongerswimandslowlydiesifitdoesn'thaveafin.TTSectionA課文初探()3.Manybelievethatsharkscanneverbeendangered.()4.WildAidandtheWWFaretwoenvironmentalprotectiongroups.()5.Therearesomescientificstudiesthathaveshownthatsharkfinsaregoodforhealth.TTFSectionA課堂互動(dòng)探究詞匯點(diǎn)睛

1cutdown減少；削減[觀察]

Well,tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.哦，為了減少空氣污染，我們應(yīng)該乘坐公共汽車(chē)或地鐵，而不是開(kāi)車(chē)。SectionA[探究]

cutdown意為“減少；削減”，此時(shí)通常和pollution,cost,amount等詞搭配。[拓展]

cutdown還有“砍伐；砍倒”之意，此時(shí)通常和tree搭配。Theofficershavetoldusnottocutdownthetrees.那些官員告訴我們不要砍伐這些樹(shù)。SectionA活學(xué)活用

1．Inordertoprotecttheenvironment,weshouldn't________anytrees.A．turndownB．putdownC．cutdownD．writedownSectionAC2costv.花費(fèi)n.花費(fèi)；價(jià)錢(qián)[觀察]It'sgoodforhealthanditdoesn'tcostanything!它對(duì)健康有好處，而且不花費(fèi)任何東西！John'snewbicyclecosthim$160.約翰的新自行車(chē)花了他160美元。SectionA[探究]cost作動(dòng)詞，意為“花費(fèi)”，此時(shí)是及物動(dòng)詞，它的主語(yǔ)通常是________，cost后可以跟雙賓語(yǔ)，即________________，表示“花費(fèi)某人多少錢(qián)”。SectionA事或物costsb.somemoney[拓展]

cost還可以作名詞，意為“花費(fèi)；價(jià)錢(qián)”，通常作不可數(shù)名詞。Thecostofthecoatwas$21.這件大衣的價(jià)錢(qián)是21美元。活學(xué)活用

2．(1)單項(xiàng)選擇2018·新疆—Wow,yoursweaterisverybeau-tiful!Howmuchisit?—Thankyou.It________me30dollars.A．spendB．paidC．costD．takeSectionAC(2)根據(jù)句意及漢語(yǔ)提示寫(xiě)出所缺的單詞JimwantstobuyanewiPhone.Itwill________(花費(fèi))himmorethan5，000yuan.SectionAcost3harmfuladj.有害的[觀察]Thisisnotonlycruel,butalsoharmfultotheenvironment.這不僅殘忍，而且對(duì)環(huán)境有害。SectionA[探究]beharmfulto意為“對(duì)……有害”。[拓展]同根詞：harmv．&n.危害；損害反義詞：harmlessadj.無(wú)害的；沒(méi)有害處的活學(xué)活用

3．2018·云南Don'tplaygamesonthecomputerallday.It's________toyoureyes.A．harmfulB．usefulC．helpfulD．thankfulSectionAASectionA【解析】本題考查形容詞的詞義理解。harmful意為“有害的”；useful意為“有用的”；helpful意為“有幫助的”；thankful意為“感激的”。根據(jù)題干中的“不要整天在電腦上玩游戲”可推斷，那對(duì)你的眼睛“有害”，故所缺的詞是harmful。4sofar到目前為止[觀察]Ihaven'theardfromhimsofar.到目前為止，我還沒(méi)有收到他的來(lái)信。SectionA[探究]sofar表示“到目前為止”，是____________(時(shí)態(tài))的標(biāo)志之一。[拓展]同義短語(yǔ)：uptillnow到目前為止現(xiàn)在完成時(shí)活學(xué)活用

4.到目前為止，又有兩名成員加入了這個(gè)社團(tuán)。Anothertwomembers_____________theclub____________.SectionAhavejoinedsofar5takepartin參加[觀察]Theteachertookpartinourdiscussionyesterday.昨天老師參加了我們的討論。SectionASectionA[辨析]

takepartin,join與attend________指參加比賽、運(yùn)動(dòng)或某項(xiàng)活動(dòng)，并在其中發(fā)揮重要作用。________指加入某個(gè)團(tuán)體、組織或人群等。________指參加會(huì)議、上課或