Unit13SectionA3a3b课件人教版英语九年级全册

Unit13We’retryingtosavetheearth!Period2(SectionA3a-3b)人教版九年级

LanguageGoal(1)Learntheusefulphrasesandsentencesinthepassage:cruel,industry,scientific,beharmfulto,atthetopof…Thisisnotonlycruel,butalsoharmfultotheenvironment.Noscientificstudieshaveshownthatsharkfinsaregoodforhealth.(2)Reviewthegrammarofpresentperfectandmodelverbs.(3)Learnaboutthefactofdangeroussituationthesharksarefacingandleadstudentstohaveastrongawarenessofprotectingsharksandsaynotofinning.(4)Leadstudentstofindsolutionstosolvingenvironmentalproblemsaroundusandwhatwecandotohelpsavetheearth.2019-nCoV(新冠状病毒),whichhaskilledhundredsandinfectedthousands,isbelievedtooriginatefromakindofbats.Somepeopleatethebatsandthevirusbegantospreadamonghumans.thedangerofkillingoreatingwildanimalspandasgoldenmonkeyswhitewhalestigersred-crownedcranesWhataretheendangeredanimalsintheworld?sharksWhatdoyouknowaboutsharks?Theyliveintheocean.Theyarethestrongestandthemostdangerousanimalintheocean.

Sharksareatthetopofthefoodchain.

Pre-readingthefoodchain

atthetopofthefoodchainManypeoplethinkthatsharksaretoostrongtobeendangered,buttheyarewrong.Itmaytalkaboutthesharksthatareendangeredandneedustosave.Readthepassagequickly.Whatisthemainideaofeachparagraph?Pleaseunderlinethekeyphrasesorsentences.Para.1Para.2Para.3Reason

forkillingsharksResultsofkillingsharksActiontostopkillingsharks阅读技能：skimmingWhile-reading(fastreading)While-reading(fastreading)WheresharkfinsoupispopularNumberofsharkscaughtandtradedeveryyearNumbersofsomekindsofsharkshavefalleninthelast20to30yearsTwoenvironmentalgroupsagainst“finning”insouthernChinaPara.1around70millionPara.2Para.2over90percentPara.3WildAidandtheWWF阅读技能：scanningWhile-reading中考链接判断正误，正确的写“T”，

错误的写“F”，并改正。Thispassagemainlyintroducesthesharkfin.ThesharkdishisespeciallypopularinsouthernChinaandabroad.Withoutafin,asharkcanalsoswimandneverdies.Sharkscanneverbeendangeredbecausetheyarethestrongest

intheirfoodchain.5.Wecanreadthispassageinthescientificmagazine.阅读理解技能:skimming&scanning主旨大意细节理解推断题F以偏概全F添油加醋F偷梁换柱断章取义F文学常识TPara.1Manyhaveheardof

sharkfinsoup.Thisfamousand

expensivedishisespeciallypopularinsouthernChina.Butdoyourealizethatyou’rekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup?Whatisthereasonforkillingsharks?2.Whenyouenjoyabowlofsharkfinsoup,youarekilling_____________.3.Whatdoyouthinkofthereasonforkillingsharks?

Becauseofthefamousandexpensivedish—sharkfinsoup.awholesharkIt’scruelandridiculous(=foolish).While-reading(carefulreading)While-reading(carefulreading)阅读技能：scanningResultsofkillingsharksForasharkForsharkgroupsForoceanecosystem生态系统Withoutafin,asharkcan

___________________________________.Thenumbersofsomekindsofsharks_____________inthelast20to30years.Alloceanlifewillbe___________iftherearenotenoughsharks.notswimanylongerandgraduallydieshavedroppedindangerWhile-reading(carefulreading)阅读技能：scanning

Actionto_______________WildAidandtheWWFGovernmentIndividual(个人)areteachingthepublicaboutfinningdeveloplaws(法律)tostopthesaleofsharkfinshelpsavethesharksprotectthesharks保护动物倡议书Post-readingHowcanweprotectouranimals?1.Weshouldraisepeople’sawarenesstoprotectanimalsandourenvironment.2.Weshouldnotwearorbuytheclothesmadebyananimalfur.3.Weshouldnoteatwildandendangeredanimals.4.Weshouldprotecttheirlivingenvironment.1.Manypeopledonotrealizetheyarekillingawholeshark______

theyenjoyabowlofshark

finsoup.2.Sharksareatthetopofthefoodchain,______iftheirnumbers

drop,theocean’secosystem

willbeindanger.sowhen3bsoalthoughifbutwhenManythinkthatsharksaretoostrongtobeendangered,______

theyarewrong.4._________therearenoscientificstudiestosupportthis,alotof

peoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday______wedonotdosomethingto

stopthesaleofsharkfins.butAlthoughif

Readthepassageagainandfillintheblankswiththewordsinthebox.文章连词的用法时间因果转折转折条件Post-readingSomepeopleliketoeatshark’sfinsoup,especiallyin________China.Butgettingtheshark’sfinisvery_______.Whenpeoplecatchsharks,they________theirfinsandthrowthesharkbackintotheocean.Thesharkslowlydiesbecauseitcan’t_____withoutafin.Anditisalso_______totheenvironment.Sharksareatthe____ofthefoodchain.Ifthenumberofsharks_____toolow,itwillbreakthebalanceofthenature.Pleasesay_____toeatingsharkfinsoup,andtakeactionto_____thesharks!southerncruelcutoffswimharmfultopdropsnosave

RetellingPost-readingSavethesharksbekilledforsharkfinsoupWhy?What?catch…,cutoff…,throwbackinto…Results?cannolongerswim,slowlydiebeharmfultotheenvironmentbringdangertoalloceanlifeHow?teachthepublicabout“finning”AfterreadingMindmaptodeveloplawstostopthesaleofsharkfinsNoscientificstudieshaveshownthatsharkfinsaregoodforhealth.Retell听说一整只鲨鱼每次一碗鱼翅羹切掉扔回不仅……而且……对……有害没有鱼鳍不再慢慢死去在海洋生态系统食物链的顶端给所有的海洋生物带来危险濒临灭绝hearofawholesharkeachtimeabowlofsharkfinsoupcutoffthrowbackintonotonly...butalso...beharmfultowithoutfinnolongerslowlydieatthetopofthefoodchainintheocean’secosystembringdangertoalloceanlifebeendangeredPost-reading

事实上

被捕杀和交易17.……的数量18.某些品种19.在过去的20年到30年20.环境保护组织21.比如22.立法23.……的销售24.到目前为止25.帮助拯救鲨鱼。infactbecaughtandtradedthenumber(s)ofsomekindsofinthelast20to30yearsenvironmentalprotectiongroupssuchasdeveloplawsthesaleofsofarHelpsavethesharks!Post-readingLanguagepoints1.Thismethodisnotonlycruel,butalso

harmfultotheenvironment.

这种方法不但残忍，而且对环境有害。notonly…butalso…(1)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.

Notonlymenbutalsowomenwerechosen.

(2)若连接两个成分作主语，其后谓语通常与靠近的主语保持一致。e.g.Notonlyyoubutalsohehastoleave.(3)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。

2.Asharkcannolongerswimandslowlydies.鲨鱼不能再游泳，然后慢慢死掉。nolonger意思是“不再”e.g.

I’mnolongerastudent.

我不再是个学生了。有两个短语和nolonger同义，即not…anylonger和not…anymore，但它们侧重的方面不同。nolonger和not…anylonger侧重时间。

e.g.Henolongerliveshere.=Hedoesn’tlivehereanylonger.

他不在这儿居住了。(一个时间以前他住在这儿，过了这个时间，

他就离开了。)not…anymore侧重程度和数量e.g.Youcandrinknomore.=Youcan’tdrinkanymore.

你不能再喝了。(喝酒的量到了一定程度，不能再继续下去了。)3.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表示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,thenumberofchildren

goingtoschoolishigherincitiesthanintownsandvillage.

在那个国家，城市儿童入学人数比乡镇及农村要高。常与number搭配的动词有grow,fall等。e.g.Thenumberoffamiliesthatowncarshasbeengrowingquicklyrecently.

近来拥有轿车的家庭数量增长很快。Exercises

用方框中词的适当形式完成下面的句子。(1)Ithinkit’s____tomakesuchayoungboyworkallday.(2)Thepoorfishermancan’t_____hischildren’seducation.(3)Ithinkthegovernmentmustdevelop_____toprotectenvironment.(4)Eatingtoomuchjunkfoodis_______toyourhealth.(5)Hecanusedifferent_______toworkouttheproblem.method,cruel,harmful,afford,lawcruelaffordlawsharmfulmethodsII.单项选择。1.—Areyougoingto_____anyoftheevents?—Yes.Maybelongjumpandhighjump.

A.takepartin

B.join

C.attend D.joinin2.Ican’tafford____himanexpensivebirthdaypresent.

A.tobuy B.buying