Unit13

We’retryingtosavetheearth!SectionA1a-2dobjectives.1)Learnandmasternewwords：sharks,fin,cruel,harmful,chain,ecosystem,industry,law;2)Learnandmasterthephrases：hearof,cutoff,beharmfulto,atthetopof,thefoodchain.Revsionatthebottomoftheriver在河的底部2.befulloftherubbish充滿了垃圾3.throwlitterintotheriver把垃圾扔入河中

Revsion4.playapartin盡一份力...5.landpollution土地污染6.cutdownairpollution減少空氣污染7.makeadifference產(chǎn)生影響8.takeaction采取行動

newwordsandphrases.shark鯊魚fin

鰭cruel

殘酷的；殘忍的

harmful

有害的chain

鏈子；鏈條ecosystem

生態(tài)系統(tǒng)industry

工業(yè)；行業(yè)law;

法律；法規(guī)newwordsandphrases.beharmfulto對......有害atthetopof在.....頂部或頂端thefoodchain食物鏈

ReadthepassagequicklyandjudgethesentencesTorF.①Sharkfin（魚鰭）soupisfamousandexpensiveallaroundtheworld.

②Sharksareatthebottomofthefoodchainintheocean’secosystem.③WildAidandtheWWFareenvironmentalprotectiongroupsinChina.

④Sharkfinsaregoodforhealth

Readpara.1andanswerthequestions:①WhereisSharkfin（魚鰭）souppopular?②Whatareyoudoing,whenyouenjoyabowlofSharkfin（魚鰭）soup?

Readpara.2andanswerthequestions:①Whatdopeopledo,whentheycatchsharks?②Howmanysharksarecaughtandtradedeveryyear?

Readpara.3andanswerthequestions:①Howcanthegovernmentsdotosavesharks?②Whatarethetwoenvironmentalgroupsagainst“finning”?Readthepassageaboutsharksandcompletedthechartbelow.3aLanguagepoints1.notonly...butalso...的用法：(1)notonly…butalso…意為“不僅……而且……”，用于連接兩個表示并列關系的成分，著重強調(diào)后者，其中的also有時可以省略。如：Shenotonlyplayswell,butalsowritesmusic.她不僅很會演奏，而且還會作曲。LanguagepointsHenotonlywriteshisownplays,healsoactsinthem.他不僅是自編劇本，還飾演其中的角色。HeworksnotonlyonweekdaysbutonSundaysaswell.他不僅平時工作，星期日也工作。Languagepoints(2)若連接兩個成分作主語，其謂語通常與靠近的主語保持一致，即就近原則。如：Notonlyyoubutalsohehastoleave.不只是你，他也得離開。Languagepoints(2)若連接兩個句子，notonly后面的句子要用倒裝，如：Notonlydidhespeakmorecorrectly,buthespokemoreeasily.他不僅說得更正確，而且講得更不費勁了

Doasurvey..①Haveyoueverheardofsharkfinsoup?②Haveyouevereatensharkfinsoup?③Doyouthinksharkfinsoupisgoodforhealth?④Willyoueatsharkfinsoupafterthisclass?.Discussion:Ifyouweresharksorotherendangeredanimals,whatwouldyouwanttosaytohumans?Letst