英语九年级Unit13We'retryingtosavetheearth!A2课件

Unit13SectionA23a-3bTranslation.1.甚至河底都满是垃圾。2.这个镇上的每个人都应该参与清扫。Eventhebottomoftheriverwasfullofrubbish.Everyoneinthistownshouldplayapartincleaningitup.3.骑自行车有其它的优点。4.我买外卖食品从来不拿木筷子和塑料叉子。Thereareotheradvantagesofbikeriding.InevertakewoodenchopsticksorplasticforkswhenIbuytakeawayfood.Theearthisbadlypolluted.Whatshouldwedotosavetheearth?Let’stakeaction(采取行动)Turnoffthelightswhenyouleavearoom.Recyclebooksandpaper.Takebusesinsteadofdrivingcars.Therearesomeanimalsareendangered.Weshoulddosomethingtoprotecttheanimalsandtheenvironment!Savetheearth!Thezoosprovidehomesformanyendangeredanimals.1.Whatdoyouknowaboutshark(鲨鱼)?2.Doyouthinksharkscanbeendangered?Why?3.Whatdoyouthinkmightcauseafallinthenumberofsharks?WheresharkfinsoupispopularNumberofsharkscaughtandtradedeveryyearHowmuchthenumbersofsomekindsofsharkshavefalleninthelast20to30yearsTwoenvironmentalgroupswhichareagainst“finning”southernChina70millionover90percentWildAidandtheWWF3aReadthepassageaboutsharksandcompletethefactsheetbelow.Retellthepassageaccordingtothewordsbelow.sharkfinsoupinsouthernChinaeachtimecutoffnolongernotonly…butalso…atthetopdropbeendangeredthestrongestaround70millionfallenbyover90percentWildAidandtheWWFdeveloplawsscientificstudies3bReadthepassageagainandfillintheblankswiththewordsinthebox.soalthoughifbutwhenManypeopledonotrealizetheyarekillingawholeshark______theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,____iftheirnumbersdrop,theocean’secosystemwillbeindanger.whenso3.Manythinkthatsharksaretoostrongtobeendangered,_____theyarewrong.4._________therearenoscientific

studiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday___wedonotdosomethingtostopthesaleofsharkfins.butAlthoughifadj.

科学上的，科学的1.Asharkcannolongerswimandslowlydies.鲨鱼不能再游泳然后慢慢死掉。nolonger意思是“不再”,相当于notanylonger。e.g.

MrBrownnolongerworkshere.

布朗先生不再在这里工作了。2.Thismethodis

notonlycruel,butalso

harmful

totheenvironment.

这种方法不但残忍而且对环境有害。notonly…butalso…用于连接两个表示并列关系的成分，着重强调后者，其意为“不仅……而且……”;其中的also有时可以省略。e.g.Shenotonlyplayswell,butalsowritesmusic.

她不但很会演奏，而且还会作曲。

Notonlymenbutalsowomenwerechosen.

不仅仅是男的，女的也有被选中的。若连接两个成分作主语，其谓语通常与靠近的主语保持一致。e.g.Notonlyyoubutalsohehastoleave.

不只是你，他也得离开。

notonly放在句首,后接句子时要用倒装结构。

e.g.Notonly

hadthepoormanbeenfined,butalsohehadbeensenttoprison.

这个可怜的人不仅被罚款，而且还被送进了监狱。

beharmfulto对……有害e.g.Smokingisharmfultothehealth.

吸烟有害健康。

Playingcomputergamesmuchisharmfultostudents.

电脑游戏玩太多对学生有害。3.Sharksareatthetopofthefoodchainintheocean’secosystem.

鲨鱼位于海洋生物系统食物链的顶部。atthetopof在……最高地位;用最高[最大]的(速度,声音等)e.g.Heshoutedatthetopofhisvoiceinorderthathemightbeheard.

他尽力大声叫喊,以便别人能听见。4.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.

如果它们的数目降至过低，会给所有海洋生物带来危险。此句复数形式的numbers表达全海洋中鲨鱼的总量。当表示数值的高或低时，number要用high或low修饰。e.g.Inthatcountry,thenumberofchildrengoingtoschoolis

higher

incitiesthanintownsandvillage.

在那个国家，城市儿童入学人数比乡镇及农村