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1、Unit13,SectionA3a-3b,Weretryingtosavetheearth!,1.Whatdoyouknowaboutsharks?2.Doyouthinksharkscanbeendangered?Why?3.Whatdoyouthinkmightcauseafallinthenumberofsharks?,Thesharkisbeingkilled.,Themaniscuttingthefinoff.,Thesharksthathavenofinswillbethrownbackintotheoceanagain.,Thefinswillbedeliveredtothema

2、rketsortherestaurants.,3aReadthepassageaboutsharksandcompletethefactsheetbelow.,SavetheSharks!Manyhaveheardofsharkfinsoup.ThisfamousandexpensivedishisespeciallypopularinsouthernChina.Butdoyourealizethatyourekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup?,聽說過,魚翅湯,中國南部,Whenpeoplecatchsharks,the

3、ycutofftheirfinsandthrowthesharkbackintotheocean.Thisisnotonlycruel,butalsoharmfultotheenvironment.Withoutafin,asharkcannolongerswimandslowlydies.Sharksareatthetopofthefoodchainintheoceansecosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.Manybelievethatsharkscanneverbeenendangeredbe

4、causetheyarethestrongestintheirfoodchain.,割斷，切下,殘忍的,對有害的,食物鏈,海洋生態(tài)系統(tǒng),Butinfact,around70millionsharksarecaughtandtradedinthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenby90percentinthelast20to30years.Environmentalprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthepublica

5、boutfinning.Thenhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.Sofar,noscientificstudieshaveshownthatsharkfinsaregoodforhealth,sowhyeatthem?Helpsavethesharks!,行業(yè),野生救援協(xié)會(huì),世界自然基金會(huì),InsouthernChina,70million,Developlawstostopthesaleofsharkfins,WildAidandtheWWF,1.Manypeopledonotrealizetheya

6、rekillingawholeshark_theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,_iftheirnumbersdrop,theoceansecosystemwillbeindanger.,when,so,3bReadthepassageagainandfillintheblankswiththewordsinthebox.,3.Manythinkthatsharksaretoostrongtobeendangered,_theyarewrong.4._therearenoscientificstudiest

7、osupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday_wedonotdosomethingtostopthesaleofsharkfins.,but,Although,if,1.Whatdopeopledowhentheycatchsharks?2.Whatwillhappentoasharkwithoutafin?3.Whatdothetwoenvironmentalprotectiongroupsaskthegovernmentstodo?4.Aresharkfins

8、goodforhealth?,Theycutofftheirfinsandthrowthesharkbackintotheocean.,Theycannolongerswimandslowlydies.,Todeveloplawstostopthesaleofsharkfins.,Noscientificstudieshaveshown.,1.SavetheSharks!save作動(dòng)詞，意為“救，拯救”，后常跟介詞from。Hesavedtheboyfromthebigfire.他從大火中救出了那個(gè)男孩。Thedogsavedthegirlslife.那只狗救了女孩的命。,2.Asharkca

9、nnolongerswimandslowlydies.nolonger意思是“不再”Imnolongerastudent.我不再是個(gè)學(xué)生了。,有兩個(gè)短語和nolonger同義，即notanylonger和notanymore，但他們側(cè)重的方面不同。nolonger和notanylonger側(cè)重時(shí)間。Henolongerliveshere.=Hedoesntlivehereanylonger.他不在這兒居住了。(一個(gè)時(shí)間以前他住在這兒，過了這個(gè)時(shí)間，他就離開了。)notanymore側(cè)重程度和數(shù)量。Youcandrinknomore.=Youcantdrinkanymore.你不能再喝了。(喝酒

10、的量到了一定程度，不能再繼續(xù)下去了。),3.harmful形容詞，意為“有害的”。常構(gòu)成短語beharmfulto“對有害的”。Stayingupoftenisharmfultoyourhealth.經(jīng)常熬夜對你的健康有害?！就卣埂縣arm名詞，意為“害處”。常用構(gòu)成短語doharmto“對有害”，相當(dāng)于beharmfulto.Toomuchsmokingdoesharmtohishealth.=Toomuchsmokingisharmfultohishealth.吸煙過多對他的健康有害。,4.Thismethodisnotonlycruel,butalsoharmfultotheenviro

11、nment.,notonlybutalso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。,Shenotonlyplayswell,butalsowritesmusic.她不但很會(huì)演奏，而且還會(huì)作曲。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。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)。Notonlyhadthepoormanbeenfined,buta

12、lsohehadbeensenttoprison.這個(gè)可憐的人不僅被罰款，而且還被送進(jìn)了監(jiān)獄。,5.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.此句復(fù)數(shù)形式的numbers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。,Inthatcountry,thenumberofchildrengoingtoschoolishigherincitiesthanintownsandvillage.在那個(gè)國家，城市兒童入學(xué)人數(shù)比鄉(xiāng)鎮(zhèn)及農(nóng)村要高。常與number搭配的動(dòng)詞有g(shù)row,fall等。,1.根

13、據(jù)漢語意思完成句子(1)我們必須采取行動(dòng)來阻止他們。Wemust_tostopthem.(2)我從沒聽說過這個(gè)人。Ihavenever_suchaman.(3)我們樂意盡力幫你擺脫困境。Wearegladtodowhatwecando_.(4)到目前為止，我已經(jīng)交了二十個(gè)朋友。_,Ihavemadetwentyfriends.(5)實(shí)際上，她從沒去過那兒。_,shehasneverbeenthere.,Infact,takeaction,heardof,tohelpout,Sofar,2.單項(xiàng)填空(1)Thegirlalwayshassomemoneyto_snacks.A.spendB.pa

14、yforC.takeD.cost(2)Look!_boysareplayingontheplayground.Yes._themisabout200.A.Thenumberof；AnumberofB.Thenumberof；ThenumberofC.Anumberof；thenumberofD.Anumberof；Anumberof,B,A,(3)Areyougoingto_anyoftheevents?Yes.Maybelongjumpandhighjump.A.takepartinB.joinC.attendD.joinin(4)Icantafford_himanexpensivebirthdaypresent.A.tobuyB.buyingC.forbuyingD.buy(5)Rememberto_thelightswhenyouleavetheroom.OK.Iwill.A.turnonB.turndownC.turnupD.turnoff,A,A,D,Write5measurestoprotecttheenvironment.,