人教版九年级英语下学期Unit13SectionA3a-3b课件

Unit13We’retryingtosavetheearth!人教版九年级英语下册SectionA3a-3bObjectivesTohavetheawareness(意识)ofprotectingsharksandrespectingnature.Tounderstandthepassageaboutendangeredanimals—sharks.Tolearntousesomewordsandexpressions.Inyouropinion,whichanimalsneedtobesaved?WarmingupFreetalkHaveyoueverseensharks（鲨鱼）?Whydotheyneedtobesaved?Readthepassageaboutsharksandcompletethefactsheetbelow.3aSavetheSharks!Manyhaveheardofsharkfinsoup.ThisfamousandexpensivedishisespeciallypopularinsouthernChina.Butdoyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup?Whenpeoplecatchsharks,theycutofftheirfinsandthrowthesharkbackintotheocean.Thisisnotonlycruel,butalsoharmfultotheenvironment.Withoutafin,asharkcannolongerswimandslowlydies.Sharksareatthetopofthefoodchainintheocean’secosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Manybelievethatsharkscanneverbeendangeredbecausetheyarethestrongestintheirfoodchain.Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.Environmentalprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublicabout“finning”.Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.Sofar,noscientificstudieshaveshownthatsharkfinsaregoodforhealth,sowhyeatthem?Helpsavethesharks!WheresharkfinsoupispopularNumberofsharkscaughtandtradedeveryyearHowgoernmemtcanhelpTwoenvironmentalgroupsagainst“finning”southernChina70milliondeveloplawstostopthesaleofsharkfinsWildAidandtheWWFReadthetitle,thefirstandlastsentencesineachparagraphsandmatchthemainideas.Talkaboutsharkfinsoup.Sharksareendangerednow.Appeal(呼吁)topeopleagainsteatingsharkfins.Para.3Para.1Para.2ReadParagraph2carefullyandanswerthefollowingquestions1.Ifasharkdoesn’thaveafin,whatwillhappen?2.Ifsharks’numbersdroptoolow,whatwillhappen?3.Whyaresharksendangerednow?Ifasharkdoesn’thaveafin,whatwillhappen?Asharkcannolongerswimandslowlydies.Ifsharks’numbersdroptoolow,whatwillhappen?Itwillbringdangertoalloceanlife.Whyaresharksendangerednow?Around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.ReadParagraph3andanswerthequestions.1.Whatarethetwoenvironmentalprotectiongroupsdoingtoprotectthesharks?Andwhathavetheydone?a.Theyareteachingthepublicabout“finning”.b.Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.2.Aresharkfinsgoodforhealth?Why?No,theyaren’t.Becausenoscientificstudieshaveshownthatsharksaregoodforhealth.Somepeopleliketoeatsharkfinsoup,especiallyin_________China.Butgettingthesharkfinisvery_____.Whenpeoplecatchthesharks,they________theirfinsandthrowthesharksintotheocean.Thesharksslowlydiesbecausetheycan’t_____withoutfins.Anditisalso________totheenvironment.Sharksareatthe___ofthefoodchain.Ifthenumberofsharksdropstoolow,itwillbreakthebalanceofthenature.Pleasesaynotoeatingsharkfinsoup,andtakeactiontosavethesharks!Retellthepassage.southerncruelcutoffswimharmfultop1.Manypeopledonotrealizetheyarekillingawholeshark_____theyenjoyabowlofshark’sfinsoup.2.Sharksareatthetopofthefoodchain,______iftheirnumbersdrop,theocean’secosystemwillbeindanger.Readthepassageagainandfillintheblankswiththewordsinthebox.soalthoughifbutwhensowhen3bManythinkthatsharksaretoostrongtobeendangered,_________theyarewrong._________therearenoscientificstudiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday____wedonotdosomethingtostopthesaleofsharkfins.butAlthoughifWhatshouldwedotosavetheanimals?DiscussionDon’tkillthemDon’twearthemNotradeNomurderNotonly+倒装句，butalso…不但……而且……Notonlycanmysisterplaythepiano,butalsoshecanplaytheviolin.我姐姐不但会弹钢琴，还会拉小提琴。LanguagepointsHarmful有害的构成的短语：

beharmfultosb./sth.对某人/某事有害=

doharmtosb.或bebadforsb./sth.Smokingisharmfultoourhealth.=Smokingdoesharmtoourhealth.=Smokingisbadforourhealth。endangered濒危的；濒危灭绝的Ourgovernmentmustbedonetoprotecttheseendangeredanimals.我们的政府必须采取措施来保护这些濒临灭绝动物。Pandasareendangeredanimal.熊猫是濒危动物。ExercisesI.根据句意及汉语提示填写单词。1.Thereisnooneto________(支持)him.2.Keepingtheanimalsinthezooisvery________(残酷的)．3.________(鲨鱼)areverysmartanimals.4.Ourgovernmenthasmade________(法律)tostopdriving

afterdrinking.5.Pollutionproblemisbecomingmoreandmoreserious

withthedevelopmentofthe________(工业)．supportcruelSharkslawsindustryII.根据句意，用括号中所给词的适当形式填空。1.Hainanisinthe________partofChina.(south)2.Weallsupporthis__________research.(science)3.Thisisan_____________animal.Weshouldtryto

saveit.(danger)