2023學(xué)年完整版九年級(jí)Unit13We'retryingtosavetheearthS

一、教學(xué)目標(biāo)：1.語言知識(shí)目標(biāo)基本詞匯：shark,fin,method,cruel.Harmful,chain,ecosystem,industry,law,scientifi基本詞組：beharmfulto,atthetop(ofsth.)基本句型：Noscientificstudieshaveshowedthatsharkfinsaregoodforhealth.Weshouldhelpsavethesharks.2.技能目標(biāo):通過閱讀獲取信息，提高閱讀能力。3.情感目標(biāo):有環(huán)境危機(jī)意識(shí)，學(xué)會(huì)關(guān)注環(huán)境保護(hù)環(huán)境。二、教學(xué)重難點(diǎn)：1.教學(xué)重點(diǎn)：掌握本課時(shí)的基本詞匯、詞組和句型。2.教學(xué)難點(diǎn)：通過閱讀獲取信息提高閱讀能力。三、教學(xué)步驟:I.RevisionTranslation.①甚至是河底都滿是垃圾。②這個(gè)小鎮(zhèn)上的每個(gè)人都應(yīng)該參加打掃。③騎自行車有其它的優(yōu)點(diǎn)。④我買外賣食品從來不拿木筷子和塑料叉子。II.Warmingup1.T:Theearthisbadlypolluted.Whatshouldwedotosavetheearth?Let’stakeaction.Forexample:①Turnoffthelightswhenyouleavearoom;②Takebusesinsteadofdrivingcars=3\*GB3③Recyclebooksandpaper.2.Therearesomeanimalsareendangered.Weshoulddosomethingtoprotecttheanimalsandtheenvironment!III.Discussion1.Whatdoyouknowaboutshark(鯊魚)?2.Doyouthinksharkscanbeendangered?Why?3.Whatdoyouthinkmightcauseafallinthenumberofsharks?IV.Reading1.Completethefactsheetin3a.Wheresharkfinsoupispopular

NumberofsharkscaughtandtradedeveryyearHowmuchthenumbersofsomekindsofsharkshavefalleninthelast20to30yearsTwoenvironmentalgroupswhichareagainst“finning”2.Retellthepassage.shark’sfinsoup,insouthernChinaeachtimecutoffnolongernotonly…butalso…atthetopdropbeendangeredthestrongestaround70millionfallenbyover90percentWildAidandtheWWFdeveloplawsscientificstudiesV.Practice(Workon3b)Readthepassageandfillintheblankswiththewordsinthebox.1)Manypeopledonotrealizetheyarekillingawholeshark______theyenjoyabowlofsharkfinsoup.2)Sharksareatthetopofthefoodchain,____iftheirnumbersdrop,theocean’secosystemwillbeindanger.3)Manythinkthatsharksaretoostrongtobeendangered,_____theyarewrong.4)_________therearenoscientificstudiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5)Sharksmaydisappearoneday___wedonotdosomethingtostopthesaleofsharkfins.VI.Languagepoints1.Asharkcannolongerswimandslowlydies.鯊魚不能再游泳然后慢慢死掉。nolonger意思是“不再”,相當(dāng)于notanylonger。e.g.MrBrownnolongerworkshere.布朗先生不再在這里工作了。2.Thismethodisnotonlycruel,butalsoharmfultotheenvironment.這種方法不但殘忍而且對(duì)環(huán)境有害。notonly…butalso…用于連接兩個(gè)表示并列關(guān)系的成分，著重強(qiáng)調(diào)后者，其意為“不僅……而且……”;其中的also有時(shí)可以省略。e.g.1)Shenotonlyplayswell,butalsowritesmusic.她不僅很會(huì)演奏，而且還會(huì)作曲。2)Notonlymenbutalsowomenwerechosen.不僅僅是男的，女的也有被選中的。若連接兩個(gè)成分作主語，其謂語通常與靠近的主語保持一致。e.g.Notonlyyoubutalsohehastoleave.不只是你，他也得離開。notonly放在句首，后接句子時(shí)要用倒裝結(jié)構(gòu)。e.g.Notonlyhadthepoormanbeenfined,butalsohehadbeensenttoprison.這個(gè)可憐的人不僅被罰款，而且還被送進(jìn)了監(jiān)獄。beharmfulto對(duì)……有害e.g.Smokingisharmfultothehealth.吸煙有害健康。Playingcomputergamesmuchisharmfultostudents.電腦游戲玩太多對(duì)學(xué)生有害。3.Sharksareatthetopofthefoodchainintheocean’secosystem.鯊魚位于海洋生物系統(tǒng)食物鏈的頂部。atthetopof在...最高地位;用最高[最大]的(速度,聲音等)e.g.Heshoutedatthetopofhisvoiceinorderthathemightbeheard.他盡力大聲叫喊,以便別人能聽見。4.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.如果它們的數(shù)目降至過低，會(huì)給所有海洋生物帶來危險(xiǎn)。此句復(fù)數(shù)形式的number表達(dá)全海洋中鯊魚的總量。當(dāng)表示數(shù)值的高或低時(shí)，number要用high或low修飾。e.g.Inthatcountry,thenumberofchildrengoingtoschoolishigherincitiesthanintownsandvillage.在那個(gè)國家，城市兒童入學(xué)人數(shù)比