Unit13We'retryingtosavetheearth!SectionA1a-3c1bListenandcheck(√)thesentencesyouhear1.Wecouldgofishingintheriver.2.Theriverwasreallydirty.3.Theriverhasalwaysbeenthenicestriverinthistown.4.Weshouldasktheteachersforhelp.√√1bListenandcompletethesentences.Whatwastheproblem?Theriverwas_____________.Eventhebottomoftheriverwasfullof_________.Therewerenomore______forfishermentocatch.reallydirtyrubbishfish底部漁民1cRole-play

Theriverwasdirty…Butitusedtobesoclean!...2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.

landpollutionB.airpollutionC.noisepollutionD.waterpollution2bListenagainandcompletethesentences.1.Theairisbadlypollutedbecausethereare___________ontheroadthesedays.2.Factories thatburncoalalso________theairwithalotofblacksmoke.morecarspollute2dRole-playtheconversation.

減少，砍倒advantagen.優(yōu)點；有利條件（反）disadvantage缺點2dRead2dandcompletethechart.ProblemsSolvingproblemsairpollutionwastepollutionWoodenchopsticksorplasticforksrubbishtakethebus,subwayorrideabikeinsteadofdriving.bringabagtogoshopping.usechopsticksorforksathome.throwrubbishinthebins.木頭的Exercises1.He___gooutwithhisparents,butnowhe____stayingathomealone.A.usedto;isusedtoB.isusedto;usedtoC.usedto;usedtoD.isusedto;isusedto2.Theinterestingbook___me10yuan.A.tookB.paidC.spendD.costhowtosavethesharkssharksareendangerednowtalkaboutsharkfinsoupspara.1para.2para3.

Scanning尋讀Para1.

Talkaboutsharkfinsoup.Readandjudgethesentences.()①Theexpensivesharkfinsoupispopulararoundtheworld.()②You’rekillingawholesharkwhenyouenjoyabowlofsharkfinsoup.

insouthernChina.1800.00RMBeachbowl

FTThen,peoplethefinsthesharkfinsoup.cookinto

Ifasharkdoesn’thaveafin,whatwillhappen?(sentence2.3)Asharkcannolongerswimandslowlydies.不再finsswim

ruel

die

FastreadingPara2.(2.3)Findouttheotheradjectivetodescribetheprocess.Thisisnotonlycruel,butalsoharmfultotheenvironment.

harmfulA:殘忍的B:有害的

Scanning尋讀Para2.1.Whyisitharmfultotheenvironment?(4.5)Sharksareatthetopofthefoodchainintheocean’secosystem.Iftheirnumbersdroptoolow,itwillbringdangertoalloceanlife.2.Sharkscanneverbeendangeredbecausetheyarethestrongestatthefoodchain.(6.7.8))TrueorFalse:

atthetopofthefoodchainintheocean’secosystem浮游生物sharks

atthetopofthefoodchainintheocean’secosystem因為我們生存所需的氧氣的70%是海洋中的浮游生物提供的，鯊魚一旦滅絕，沒有了天敵控制的其它海洋生物就會大量吞噬海洋浮游生物，造成地球的缺氧。海洋是地球上最重要的生態(tài)系統(tǒng)，起到調(diào)節(jié)氣候和為其它生物提供食物的作用，因此拯救鯊魚其實就是在拯救人類自己。Savingthesharksissavingourselves!Protectingthesharksisprotectingourselves!

Scanning尋讀Para3.Howtosavethesharks.1.Whatarethenamesofthetwoenvironmentalprotectiongroups?2.Whathavepeopledoneagainst(反對）finning1.teachthepublicabout

finning.獵鰭、割鰭行為2.askgovernmentstodeveloplawstostopthesaleofsharkfins.A:培養(yǎng)B:壯大C：完善

Scanning尋讀Para3.

=or3.Issharkfinsoupgoodforhealth?Noscientificstudieshaveshownthatsharkfinsaregoodforhealth.A:科學(xué)的B:理論的Sowhyeatthem?中考鏈接anumberofthenumberof相同點：后都加名詞復(fù)數(shù)不同點：anumberof+名復(fù)，意為許多；做主語是復(fù)數(shù)。thenumberof+名復(fù)，意為......的數(shù)量，做主語是單數(shù)。Anumberof_________(student)________(have)anEnglishclassnow.Thenumberof_______(it/they)________(be)about45.中考鏈接nolonger/not....anylonger意為不再nolonger通常位于實義動詞之前，be動詞、助動詞或情態(tài)動詞之后。not...anylonger中的anylonger總是放在句末。nolonger與not...anylonger可以互換She_____________likesdancing.（同義句）She_______likedancing___________.她不再喜歡跳舞了。中考鏈接beharmfulto對……有害bebadfor對……有害e.g.吸煙有害健康。電腦游戲玩太多對學(xué)生有害。(翻譯)Smokingthehealth.Playingcomputergamesmuch_____students.定義：表示說話時(瞬間)正在進(jìn)行的動作,也表示目前或現(xiàn)階段正在進(jìn)行的動作。結(jié)構(gòu):be(am/is/are)+v.-ing標(biāo)志詞：Look,Listen,now,rightnow…e.g.Look!Theboyiscrying.2.usedtodo

usedtodosth.表示過去常常做某事,而現(xiàn)在往往不做了,后接動詞原形。e.g.Iusedtogetupatsixo’clock.beusedtodoingsth.表示習(xí)慣于做某事Joeisusedtodrinkingacupofcoffeeeverymorning.1.現(xiàn)在進(jìn)行時:PresentProgressive3.被動語態(tài)：Passivevoice定義：表示主語是動作的承受者，即行為動作的對象的一種語態(tài)。結(jié)構(gòu)：be+過去分詞e.g.Ourclassroomiscleanedeveryday.4.現(xiàn)在完成時:PresentPerfect定義：表示動作已經(jīng)完成,但對現(xiàn)在造成影響;或者表示從過去某一時間開始一直延續(xù)到現(xiàn)在并還可能持續(xù)下去的動作。結(jié)構(gòu):has/have+過去分詞標(biāo)志詞：already,yet,ever,never,since,for…e.g.Ihaven’tfinishedmyhomeworkyet.情態(tài)動詞本身有一定的詞義,表示說話人的情緒、態(tài)度或語氣,但不能單獨作謂語,只能與其他動詞構(gòu)成謂語。常見的有:can(could),may(might),must,need,shall(should),will(would)等。2.情態(tài)動詞無人稱和數(shù)的變化,后接動詞原形。否定式是在情態(tài)動詞后面加not。個別情態(tài)動詞有過去式形式,可用來表達(dá)更加客氣、委婉的語氣。

e.g.Kencanclimbupthetresslikeakoala.Youmustn’tplaywithfire.Itisdangerous.情態(tài)動詞4aFillintheblankswiththecorrectformsoftheverbsinbrackets.Joe:_____youever______(take)partinanenvironmentalproject?Eric:Yes,Ihave.I______(help)withaClean-UpDaylastyear.Itwas__________(consider)thebiggestclean-upprojectthiscity____ever

____(have).Havetakenhelpedconsideredhadhad參加Joe:Howmanypeople____(take)part?Eric:I_____(think)morethan1,000people______(come)tohelpout.Joe:That’sfantastic!Iguesseveryoneinthiscityis______(try)toimprovetheenvironment.Eric:Yes,wecan’taffordto____(wait)anylongertotakeaction!tookthinkcametryingwaitv.

承擔(dān)得起(后果);買得起affordtodosth.Wecan’taffordtobuyanotherhouse.4bFillintheblankswiththeappropriatemodalverbsfromthebox.People__________thinkthatbigthings______bedonetosavetheearth.Manyforgetthatsavingtheearthbeginswithsmallthings.Forexample,you____savemay/mightmustcancanwouldcouldhavetoshouldmustmay/mightsmallthings______addupandbecomebigthingsthat_________improvetheenvironment.Let’stakeactionnow!couldwould/can采取行動4cMakealistofthingsthatpeoplecandotohelptheenvironmentanddiscussyourlistwithyourpartner.usepublictransportation(n.交通運輸);turnoffthelightswhenyouleavearoom;usereus