Unit3Lesson1TheSixthExtinction-Reading側(cè)重點(diǎn)-句子結(jié)構(gòu)分析課件-高中英語北師大版（2019）選擇性必修第一冊

extinctionn.滅絕，消亡extinctadj.滅絕的

n.選項(xiàng)whichisbaseon

基于，以…為根據(jù)過去分詞做定語滅絕一次；曾經(jīng)；一旦百分比大量的massive巨大的；大量的bcav.完成note

n.筆記；注釋；v.注意；表明aspectn.方面

n.意思o(jì)ccur

v.出現(xiàn)sofar

目前為止v.避免；回避

adj.主要的notable

adj.顯要的，值得注意的n.結(jié)果;后果v.完成note

n.筆記；注釋；v.注意；表明aspectn.方面

n.意思o(jì)ccur

v.出現(xiàn)sofar

目前為止v.避免；回避

adj.主要的notable

adj.顯要的，值得注意的n.結(jié)果;后果entirespeciesarewipedoutover90%ofallspeciesthateverlivedthethirdmassextinction,killed90%to96%ofallspecies;thefifthevent,whichoccurred66millionyearsago,causedthedeathofthedinosaursvolcaniceruptions,asteroidshittingtheEarthfromspace,changesinsealevels,thedecreaseofoxygencontentofthesea,globalwarmingchangethewaywelive,includingsettingupspecialareaswhereplantsandanimalscanbeprotected;changehowweworkandtravelbyusingclearner,morenatural.......1.Whatdidscientistsfindoutin2015?2.Whydoesthewriterthinkthesixthmassextinctionwillcome?Thestudyfoundthathowquicklyspeciesdieoutduetonaturalcauses,thatis,the"backgroundextinctionrate".Theyfoundthathumanactivityiscausingspeciestodieout1,000timesfasterthannormal.BecausehumanactivityhasnegativelyaffectedallotherspeciesonEarth,includinganimalsandplants.3.Whydoesthewriterbelievewe'llprobablydieoutif75%oftheEarth'sspeciesdieout?4.Whatdidpeopledointhecasestudytoprotectblackrobins?Whichclaim(s)didthecasestudysupportinthetext?claimn./v.

聲稱,斷言；索要,索賠Becauseourworldandourlivesdependonthebalanceinnaturebetweenanimalsandplants.PeopleprotectedOldBlue'seggs,helpedthemtohatch,andtookcareofthechicks.Peoplearerestoringtheirhabitatsandremovingpestslikemiceandcatsfromtheislandswheretheylive.Thecasestudyshowedthatevenindesperatesituations,wecandosomethingtohelp.Inshort,it'snevertoolate.1.Usedifferentcolouredpenstohighlightatleastoneexampleforeachofthefourelementslistedbelowindifferentcolours.Thenfindout(1)whattypicallanguageisused?(2)Whattexttypeisthispieceofwriting?(3)Whatisitscommunicativepurpose?v.突出,強(qiáng)調(diào)elementn.基本部分，要素；元素；(1)Facts:over90%ofallspeciesthateverlivedareextinct;the"GreatDying",whichkilled90%to96%ofallspecies;humanactivityiscausingspeciestodieout1,000timesfasterthannormal.Reasons:airandwaterpollution,forestsbeingdestroyed,factoryfarmingandoverfishingarecausingspeciestodieout;withoutforests,wewouldhavenoairtobreatheandwithoutcleanwaterwewouldbeunabletosurvive.(1)Opinions/predictions:manyscientistssaywearenowenteringtheEarth'ssixthmassextinction;scientistsbelievethatuptothreequartersofallspeciesonEarthcoulddieout.Solutions:weneedtotakestepstosaveendangeredspecies,includingsettingupspecialareaswhereplantsandanimalscanbeprotected;weneedtochangehowweworkandtravel...;wealsoneedtoimproveourfarmingmethods...(2)Thispieceofwritingisanexposition.(3)Itspurposeistoexplainwhatthesixthextinctionisanditseffectsandcallonpeopletotakeactiontopreventitfromhappening.2.Thewriteruseswayssuchascitingideasfromexpertsorauthorities,givingexamplesandusingdata.Ibelievethatifwetakeactionnowitisnottoolatetosaveotherspeciesfromextinction.Theblackrobinwassavedfromextinctionwhenonlyfivebirdsremained,soIthinkitispossibletosaveanyspeciesifweactrightnow.Usetheadjectivesandnounstomakemeaningfulexpressions.Thenuseeachexpressiontomakeasentence.Writethesentencesinthespaceprovided.endangeredanimals,entirespecies,naturalresources,significantchange,massextinction,solarenergy滅絕被認(rèn)為是；以…著稱affectv.影響依靠...消滅，徹底摧毀采取措施stepn.步伐；步采取行動建立照顧答案見下一頁Inthelast500millionyears,therehavebeenfivemassextinctioneventsonEarth.Inthethirdevent,which1

the"GreatDying",90%to96%ofallspecies2

.Ofcourse,speciesdiedoutduetomanycauses.Butnowadays,humanactivity

3

alltypesofspeciesthatwe4

forliving.Weneedto5

toavoidthesixthmassextinction.Weshould6

tosaveendangeredanimalsandplants,and7

specialareasto8

thembeforethenextextinctioncomesthatmay9

theentirespecies.isknownasdiedouthasaffecteddependontakeactiontakestepssetuptakecareofwipeoutdefine

v.給…下定義；標(biāo)明…界限r(nóng)eferto

參考；涉及；指的是1.Extinctions,whereentirespeciesarewipedout,arenotunusualinourEarth'shistory.2.Theseincludethethirdmassextinction,knownasthe"GreatDying",whichkilled90%to96%ofallspecies.3.A2015studybyscientistswhowerebasedatBrownUniversityandDukeUniversityintheUS,lookedathowquicklyspeciesdieoutduetonaturalcauses4.Ifasixthmassextinctionoccurs,seientistswhohavestudiedtheissuebelievethatuptothreequartersofallspeciesonEarthcoulddieout.5.Weneedtotakestepstosaveendangeredspecies,includingsettingupspecialareaswhereplantsandanimalscanbeprotected.Whichoftheclausesabove:(1)giveinformationtoidentifythepersons/objects.(

)

(2)giveextrainformationaboutapersonorathing,whichcanbeleftout.(

)

1.Extinctions,whereentirespeciesarewipedout,arenotunusualinourEarth'shistory.2.Theseincludethethirdmassextinction,knownasthe"GreatDying",whichkilled90%to96%ofallspecies.3.A2015studybyscientistswhowerebasedatBrownUniversityandDukeUniversityintheUS,lookedathowquicklyspeciesdieoutduetonaturalcauses4.Ifasixthmassextinctionoccurs,seientistswhohavestudiedtheissuebelievethatuptothreequartersofall