人教初三英语 Unit 13 Section A 2 Save the Sharks!

.,Unit13,.,Words,sharkfincruelbeharmfultoatthetopof,thefoodchainecosystemindustrylawscientific,.,SectionA23a-3b,.,Usesomewordstodescribethesharks,.,big,large,cruel,scaring,dangerous,terrible,.,Sharksareatthetopofthefoodchainintheoceansecosystem.,Afoodchain,.,Whoistherealkingofthefoodchain?,Humanbeings,.,sharkfinsoup,famous,expensive,popular,.,Howdopeoplemakeabowlofsharkfinsoup?,.,Cutoffsharksfin,Throwthesharkbackintotheocean.,.,Canthesharklivelongwithoutthefin?,Canthesharkswimwithoutthefin?,Canthesharkcatchfoodwithoutthefin?,.,Thesharkwilldieslowlywithoutthefin.,.,=,=,Abowloffinsoup,thelifeofawholeshark,.,渔民在捕捞上一条鲨鱼后不论大小，都会在甲板上用电锯活生生地把鲨鱼的背鳍、两个胸鳍和一部分尾鳍割掉，然后将全身血流不止的鲨鱼扔回海中，因为船舱没那么大的地方装鲨鱼肉。这些鲨鱼身体被直接抛回海洋，沉入深海中，无法游动、无法觅食，痛、饿、血流不止，最后在深海死去。在中国的餐饮业内，鱼翅的地位仍是难以撼动，很多酒楼都把最大的鱼翅，展示在大堂最醒目的地方，以作标榜。,.,Everyyear,_sharksarecaughtandtradedinthisindustry.around70millionB.around90million,.,Thenumbersofsomesharkshavefallenby_inthelast20to30years.over10percentB.over90percent,.,endangered,dangerous,.,Twoenvironmentalprotectiongroups,WildAidandWorldWildFundforNature,Theyareteachingthepublicabout“finning”.Thehaveaskedgovernmentstodeveloplawstostopthesaleofsharkfins.,.,Iseatingsharkfinsoupgoodforourhealth?,.,insouthernChina,around70million,over90percent,WildAidandtheWWF,3a,Readthepassageaboutsharksandcompletethefactsheetbelow.,.,3b,Readthepassageagainandfillintheblankswiththewordsinthebox.,Manypeopledonotrealizetheyarekillingawholeshark_theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,_iftheirnumbersdrop,theoceansecosystemwillbeindanger.,when,so,.,3.Manythinkthatsharksaretoostrongtobeendangered,_theyarewrong.4._therearenoscientificstudiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday_wedonotdosomethingtostopthesaleofsharkfins.,but,Although,if,adj.科学上的，科学的,.,鲨鱼不能再游泳。(nolonger位于be，情态动词之后)Asharkcannolongerswim.,2.我不再是个学生了。(nolonger)e.g.Imnolongerastudent.,nolonger=nomore=notanylonger=notanymore，,Languagepoints,.,e.g.Henolongerliveshere.=Hedoesntlivehereanylonger.e.g.Hecandrinknomore.=Hecantdrinkanymore.,A.Hedoesntlivehereanylonger.,B.Hecantdrinkanymore.,.,Iftheirnumbers_,itwillbringdangertoalloceanlife.如果它们的数目降得过低，会给所有海洋生物带来危险。,droptoolow,.,e.g.Inthatcountry,thenumberofchildrengoingtoschoolis_incitiesthanintownsandvillage.在那个国家，城市儿童入学人数比乡镇及农村要高。e.g.Thenumberofcars_quickly.轿车的数量增长很快。,higher,grows,.,当表示数值的高或低时，number要用high或low修饰。,常与number搭配的动词drop,grow,fall等。,.,Notonlythemanbutalsothewomen_(be)