Unit5AdelicateWorldStartingoutUnderstandingideas课件高二英语选择性

Unit5AdelicateworldPeriod1Startingout&UnderstandingideasLearningaimsToknowsomethingaboutMacquarieIsland.Topracticeourreadingskills.Tospuroursenseofenvironmentalprotection.Leading-inWatchavideoandanswerquestions:1.

What

canyouseeinthisvideo?2.Whatdoyouthinkofthem?1.

What

canyouseeinthisvideo?Abeautifulisland,rocks,birds,elephantseals,penguins...2.Whatdoyouthinkofthem?Theyarebeautiful,gorgeous,wonderful,harmonious,amazing...Watchavideoandanswerquestions:MacquarieIsland:fromChaostoConservationReadthepassagequicklyandanswerthefollowingquestions.1.Matchtheparagraph(s)withcorrectmainideas.Para.1Paras.2-3Paras.4-5Para.6ChaoscausedbyhumansTheprocessofpreservationTheintroductionoftheislandTheauthor’smission2.Choosetheauthor'spurposeinwritingthispassageandgiveyourreasons.A.ToanalyzehowMacquarieIslandwassavedfromdestruction.B.ToinformreadersofthechaoscausedonMacquarieIslandbyhumans.C.ToentertainreaderswithafunnystoryaboutwhathappenedonMacquarieisland.D.Tosuggestwaysinwhichanecosystemcanbeprotected.FastreadingReadPara.1andfindoutthesentencestodecribethefouraspects.Location1486km1294kmShape

Inhabitantsroyalpenguins;kingpenguins;elephantsealslongandthinWhy?

StrongwindsandstormyseasInthe________________ocean,________betweenAustraliaandAntarctic.South-westPacifichalfwaylandscapeGreengrass;barerock;awildandnaturalbeautyCarefulreadingReadpart2(Paras.2-3)andfinishthefollowingtasks.thechaosoftheisland1.Whatwasbroughttotheisland?rats&micecatsrabbits2.Whathappenedaftertheyreachedtheisland?tookover…ate…attacked…atebirdsmultipliedatevegetationdigholessoilerosionmorecatshavea______effectonecologybad！humansHumans’__________actionscareless

theconservationoftheislandTimeMeasure(s)Purpose(s)Result(s)Readpart3(paras.4-6)&postscript,

andfillintheblanks.afterthe1970sinthe1980safter2006release_______use__________droppoison,use_______toremoverabbitsto_______toremoveinvadingspeciesfewer_________but_____birdspestfewercatsno____but______rats______rabbitslandcollapsemoremore_____freein2014virustraps&dogsdogscatchcatsrabbitsintime?proper?tosolveitonceandforallHumans’____________measuresmaydogreaterharmtoecology.improperDeeperthinking:WhatdoyouthinkistoblameforthechaosinMacquarieIsland?rats&mice?cats?rabbits?human’scarelessbehaviors

human'simpropermeasures“Wehumansoweittotheislandtogiveitahappyending.”

MacquarieIslandtakesonalong,thinshape,1.

isbecauseofstrongwindsand2.

(storm)seas.ItisaUNESCOWorldHeritageSite.Itsnativeinhabitantsexistedinperfectharmonywiththeirnaturalhabitatforthousandsofyears.In1810,humansarrivedontheislandwithratsandmiceunknowingly.Theseanimalsquicklytookovertheisland,3.

(bring)disasterstobirds.Unfortunatelycats4.

(intend)tocontrolratsandmicedevelopedanappetiteforbirds,too.Later,rabbits5.

(introduce)buttheyledtogreaterdamagetotheisland.Expertscameupwithaplantoreleaseavirus6.

(kill)therabbits,butafterwards,theydevelopedanimmunity7.

thevirus,andtheir8.

(number)explodedonceagain.Thisincidentmade9.

clearthattherat,mouseandrabbitproblemneededsolvingonceandforall.Iamheretotacklethisproblem.Ibroughttraineddogstoremovethelast10.

(remain)invadingspecies.Ihopewehumansoweittotheislandtogiveitahappyending.whichstormybringingintended

wereintroduced

tokillto

numbers

it

remaining

Whatshouldwedotoprotectourenvironment?PostreadingWithourjointefforts,ourcountryissuretobecomeamorehospitableplace.Weshouldliveharmoniouslywithnature.1.appetiten.胃口，食欲；渴望(教材原句)Unfortunately,thecatssubsequentlydevelopedanappetiteforthebirds,too.不幸的是，这些猫随后也对鸟类产生了兴趣。Hehadanenormousappetiteforarithmeticwhenhewasatschool.上学时他极其爱好算术。Shehasahugeappetiteforadventure.她对冒险有强烈的欲望。【知识拓展】have/developanappetitefor对……有/产生兴趣/欲望loseone'sappetite 某人没了食欲/欲望spoilone'sappetite 影响某人的食欲【即学即练】单句语法填空(1)Varietiesofmagazinesandresearchpapersareputoutwiththeaimoffeedingreaders'appetite

specificknowledge.完成句子(2)不要在两餐之间吃东西，以免影响胃口。Don't

byeatingbetweenmeals.(3)自从感染了病毒以后，她完全没有了食欲。Shehascompletely

sinceshewasinfectedwiththevirus.spoilyourappetiteforlostherappetite2.multiplyv.(使)大大增加，(使)倍增；(使)繁殖；乘；乘以(教材原句)Looseontheisland,theydidwhatrabbitsdobest—theymultipliedrapidlyandbeganeatingthenativevegetationanddiggingholes,whichcausedsoilerosion.它们(兔子)在岛上逍遥自在，做了最擅长做的事——它们迅速繁殖，开始吃当地的植被并且挖洞，造成了水土流失。Whenthemarketfornutriacollapsedinthelate1980s,thecat­sizedanimalsmultipliedlikecrazy.上世纪80年代末，当海狸鼠市场崩溃时，这种和猫一样大小的动物疯狂繁殖。Multiplegenesbehaveddifferently,dependingonwhethersomeonehadeatenornotbeforewalking.多个基因表现不同，这取决于一个人在走路前是否吃过东西。【知识拓展】(1)multiplyAbyB A乘以B(2)multipleadj.多重的；多样的；许多的【即学即练】写出下列句中multiply的含义(1)Thechildrenarealreadylearningtomultiplyanddivideattheageofsix.

(2)Itispossibletomultiplythesebacteriainthelaboratory.

(3)Suchdisputesmultipliedintheeighteenthandnineteenthcenturies.完成句子(4)如果你把6乘以9，你会得多少？Whatdoyouget

?ifyoumultiplysixbynine大大增加使繁殖乘3.decreasev.(使)变小，(使)减少n．减少(教材原句)Butalthoughtheviruscausedtherabbitpopulationtodecreasefrom130，000toaround10，000,italsomeantlessfoodforthecats.虽然该病毒导致兔子的数量从13万只减少到1万只左右，但这也意味着猫的食物减少了。Thenumberofnewstudentsdecreasedfrom210to160thisyear.今年新生人数从210减少到160。Therehasbeensomedecreaseinmilitaryspendingthisyear.今年的军费开支有所减少。【知识拓展】(1)decrease(from...)to...(从……)减少到……decreaseby... 减少了/降低了……decreasein...在……方面减少/减小/下降(2)adecreasein... 在……方面的减少onthedecrease 在减少【即学即练】单句语法填空(1)Thenumberofcyclistsrunningtrafficlightsis

thedecrease.(2)Bytheendofthestudy,thatpercentagehaddecreased

half,to45percent.(3)Wehavenoideawhenthehousingpriceswilldecrease

thelevelwecanafford.(4)Therehasbeen

decreaseinourimportsovertheyears.byontoa4.trapn.夹子；陷阱v．诱捕；诱骗；使陷入困境(教材原句)Inthe1980s,trapsanddogswereusedtocatchthecats.20世纪80年代，陷阱和狗被用来抓猫。Wesettrapsinthecafeteriaforthemiceinordertocatchthem.我们在餐厅里设下夹子来逮老鼠。Wereyoujusttryingtotrapherintomakingsomeadmission?你仅仅是在试图诱骗她招供吗？【知识拓展】(1)set/lay/placeatrap

布置陷阱

fallintoatrap 落入陷阱/圈套(2)trapsb.intodoing...诱骗某人做……be/gettrappedin...被困在……中【即学即练】单句语法填空(1)Iwastrapped

tellingthepoliceallIknew.(2)(2024·浙江1月高考)IfIeverget

(trap)outsidemyhouseagain,mylocaltelephoneboxwill,sadly,nolongerbeabletoconnectmewithmykeys.(3)Onceyoufall

atrap,itwillnotbeeasytogetoutofit.完成句子(4)他觉得自己被诱骗去接受补偿条款。Hefelt

thecompensationterms.intotrappedintohehadbeentrappedintoaccepting5.owev.应该做；对……负有……的义务(教材原句)Thisinterventionisalong,much­delayedendingtoasadstory,butwehumansoweittotheislandtogiveitahappyending.这样的干预为这个悲剧故事画上一个长长的、迟来的句号，而这是我们人类应该为这座岛所做的事情——给它一个美好的结局。Heoweshisgoodhealthtothespecialist'sadvice.他把自身的健康归功于这位专家的建议。Icertainlyoweyouanapologyfornotwritingmoreoften.没有给您多写信，实在抱歉。【知识拓展】(1)owesb.sth.＝owesth.tosb.欠某人某物；把某事归功于某人oweittosb.that.../todo... 把……归功于某人/认为某人应该为……做……owesb.anapology 该向某人道歉(2)owingto由于【即学即练】单句语法填空(1)MyEnglishteacherissuchagreatsoul,

whomIowemanythanks.(2)Iowe

tohimthatIfinishedmyworkintime.(3)Weoweittoyou

(complete)thisjob,sowehopeyoumakeeffortstohelpus.ittotocomplete1.现在分词(短语)作结果状语(教材原句)Thegreengrassandbarerockofitslandscapecontrastdramatically,givingitawildandnaturalbeauty.青草和裸露的岩石地貌形成了鲜明的对比，赋予这座岛一种野性和自然的美。Laughterdoesproduceshort­termchangesinthefunctionoftheheartanditsbloodvessels,boostingheartrateandoxygenconsumption.笑确实会使心脏和血管的功能发生短期变化，加速心率和耗氧量。Hepickedupastone,onlytohaveitdroppedonhisownfoot.他搬起石头砸了自己的脚。【知识拓展】(1)现在分词(短语)作结果状语常表示意料、情理之中的结果，其逻辑主语常常是整个主句。(2)现在分词(短语)作结果状语，有时可以改为一个which引导的非限制性定语从句。(3)不定式短语作结果状语常表示出乎意料的结果，不定式前常加only。【即学即练】单句语法填空(1)Thesnowlastedaweek,

(result)inserioustrafficconfusioninthewholearea.(2)Theyreachedthecompanyoutofbreath,only

(tell)theywerefired.(3)Hewentoutoftheroomwithfewclotheson,only

(feel)rathercold.resultingtobetoldfeeling2.部分倒装(教材原句)Norwouldthey

failtoimaginehowitsnativeinhabitants,includingroyalpenguins,kingpenguins,andelephantseals,existedinperfectharmonywiththeirnaturalhabitatforthousandsofyears.他们也不难想象出那里的当地物种，包括帝企鹅、王企鹅和象海豹，数千年来是如何与它们的自然栖息地和谐共存的。NeverhaveIseenasituationwhichmadehimsodisheartened.我从没见过让他这么沮丧的情形。Atnotimedidtheyactuallybreaktherulesofthegame,soitwasunfairtopunishthem.他们实际上从来都没有违反比赛的规则，处罚他们是不公平的。【知识拓展】当含有否定意义的词或短语如never、hardly、seldom、little、few、notuntil、not、notonly、nosooner、nolonger、nowhere、bynomeans、atnotime、onnoaccount、innocase、undernocircumstances等置于句首时，其后用部分倒装。【即学即练】句型转换(1)Iknewlittlethatshehadalreadyleft.→

.(倒装句)(2)Inotonlyknewher,butIwasherbestfriend.→

.(倒装句)LittledidIknowthatshehadalreadyleftNotonlydidIknowher,butIwasherbestfriend1.stormstormy2.dramadramaticaldramatically3.knowknowingunknowingunknowingly4.subsequentsubsequently5.multiplemultiply6.departdeparture7.remainremaining8.recoverrecovery认知词汇拓展词汇chaoshalfwayhabitatloosevegetationerosionreserveimmunitycollapsesubstantial

Summary应用词汇1.appetite:developanappetitefor;loseone'sappetite2.multiply:multiple;multiplyAbyB3.decrease:decreasefrom...to...;decreaseby...;adecreasein;onthedecrease4.trap:set/lay/placeatrap;fallintoatrap;betrappedin核心短语1.inharmonywith2.takeover3.developanappetitefor4.beintroducedto5.inturn6.leadto7.benativeto8.dieout9.inconsequence10.onceandforall

1.现在分词(短语)作结果状语eg:Thegreengrassandbarerockofitslandscapecontrastdramatically,givingitawildandnaturalbeauty.2.部分倒装eg:Norwouldthey

failtoimaginehowitsnativeinhabitants,includingroyalpenguins,kingpenguins,andelephantseals,existedinperfectharmonywiththeirnaturalhabitatforthousandsofyears.重点句式课时重点回顾Ⅰ.单词拼写1.Andcontrarytoexistingresearchthatsaysyoushouldavoideatingwithheavierpeoplewhoorderlargeportions(份),it'sthebeanpoleswithbig

(食欲)youreallyneedtoavoid.2.Asmanyas10ofthe17kindsofpenguinsmaybeindangerofdisappearing,thenumberofwhichhas

(下降)by30%since1987.3.Heistryingtodecidewhethertheinitativewassomesortofa

(圈套).4.Icanwellrememberthe

(事件)thathappenedonarainySundayafternoon.5.Withoutpolicemen,peoplecouldnotenjoyharmonyorthecountrywouldbein

(混乱).6.Thereportstatesthatthegapbetweentherichandthepoorhasincreased

(显著地)overthepastdecade.appetiteschaos

decreasedtrapincidentdramaticallyⅡ单句语法填空1．Teenagersclimbedthestairstodeliverwaterandfoodtoelderlypeople

(trap)inpowerlesshigh­risebuildings.2．EversinceItooktheleadership