Unit5AdelicateWorldStartingoutUnderstandingideas課件高二英語選擇性

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，這些貓隨后也對鳥類產(chǎn)生了興趣。Hehadanenormousappetiteforarithmeticwhenhewasatschool.上學(xué)時他極其愛好算術(shù)。Shehasahugeappetiteforadventure.她對冒險有強(qiáng)烈的欲望?！局R拓展】have/developanappetitefor對……有/產(chǎn)生興趣/欲望loseone'sappetite 某人沒了食欲/欲望spoilone'sappetite 影響某人的食欲【即學(xué)即練】單句語法填空(1)Varietiesofmagazinesandresearchpapersareputoutwiththeaimoffeedingreaders'appetite

specificknowledge.完成句子(2)不要在兩餐之間吃東西，以免影響胃口。Don't

byeatingbetweenmeals.(3)自從感染了病毒以后，她完全沒有了食欲。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.它們(兔子)在島上逍遙自在，做了最擅長做的事——它們迅速繁殖，開始吃當(dāng)?shù)氐闹脖徊⑶彝诙?，造成了水土流失。Whenthemarketfornutriacollapsedinthelate1980s,thecat-sizedanimalsmultipliedlikecrazy.上世紀(jì)80年代末，當(dāng)海貍鼠市場崩潰時，這種和貓一樣大小的動物瘋狂繁殖。Multiplegenesbehaveddifferently,dependingonwhethersomeonehadeatenornotbeforewalking.多個基因表現(xiàn)不同，這取決于一個人在走路前是否吃過東西?！局R拓展】(1)multiplyAbyB A乘以B(2)multipleadj.多重的；多樣的；許多的【即學(xué)即練】寫出下列句中multiply的含義(1)Thechildrenarealreadylearningtomultiplyanddivideattheageofsix.

(2)Itispossibletomultiplythesebacteriainthelaboratory.

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

?ifyoumultiplysixbynine大大增加使繁殖乘3.decreasev.(使)變小，(使)減少n．減少(教材原句)Butalthoughtheviruscausedtherabbitpopulationtodecreasefrom130，000toaround10，000,italsomeantlessfoodforthecats.雖然該病毒導(dǎo)致兔子的數(shù)量從13萬只減少到1萬只左右，但這也意味著貓的食物減少了。Thenumberofnewstudentsdecreasedfrom210to160thisyear.今年新生人數(shù)從210減少到160。Therehasbeensomedecreaseinmilitaryspendingthisyear.今年的軍費(fèi)開支有所減少?！局R拓展】(1)decrease(from...)to...(從……)減少到……decreaseby... 減少了/降低了……decreasein...在……方面減少/減小/下降(2)adecreasein... 在……方面的減少onthedecrease 在減少【即學(xué)即練】單句語法填空(1)Thenumberofcyclistsrunningtrafficlightsis

thedecrease.(2)Bytheendofthestudy,thatpercentagehaddecreased

half,to45percent.(3)Wehavenoideawhenthehousingpriceswilldecrease

thelevelwecanafford.(4)Therehasbeen

decreaseinourimportsovertheyears.byontoa4.trapn.夾子；陷阱v．誘捕；誘騙；使陷入困境(教材原句)Inthe1980s,trapsanddogswereusedtocatchthecats.20世紀(jì)80年代，陷阱和狗被用來抓貓。Wesettrapsinthecafeteriaforthemiceinordertocatchthem.我們在餐廳里設(shè)下夾子來逮老鼠。Wereyoujusttryingtotrapherintomakingsomeadmission?你僅僅是在試圖誘騙她招供嗎？【知識拓展】(1)set/lay/placeatrap

布置陷阱

fallintoatrap 落入陷阱/圈套(2)trapsb.intodoing...誘騙某人做……be/gettrappedin...被困在……中【即學(xué)即練】單句語法填空(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)他覺得自己被誘騙去接受補(bǔ)償條款。Hefelt

thecompensationterms.intotrappedintohehadbeentrappedintoaccepting5.owev.應(yīng)該做；對……負(fù)有……的義務(wù)(教材原句)Thisinterventionisalong,much-delayedendingtoasadstory,butwehumansoweittotheislandtogiveitahappyending.這樣的干預(yù)為這個悲劇故事畫上一個長長的、遲來的句號，而這是我們?nèi)祟悜?yīng)該為這座島所做的事情——給它一個美好的結(jié)局。Heoweshisgoodhealthtothespecialist'sadvice.他把自身的健康歸功于這位專家的建議。Icertainlyoweyouanapologyfornotwritingmoreoften.沒有給您多寫信，實(shí)在抱歉?！局R拓展】(1)owesb.sth.＝owesth.tosb.欠某人某物；把某事歸功于某人oweittosb.that.../todo... 把……歸功于某人/認(rèn)為某人應(yīng)該為……做……owesb.anapology 該向某人道歉(2)owingto由于【即學(xué)即練】單句語法填空(1)MyEnglishteacherissuchagreatsoul,

whomIowemanythanks.(2)Iowe

tohimthatIfinishedmyworkintime.(3)Weoweittoyou

(complete)thisjob,sowehopeyoumakeeffortstohelpus.ittotocomplete1.現(xiàn)在分詞(短語)作結(jié)果狀語(教材原句)Thegreengrassandbarerockofitslandscapecontrastdramatically,givingitawildandnaturalbeauty.青草和裸露的巖石地貌形成了鮮明的對比，賦予這座島一種野性和自然的美。Laughterdoesproduceshort-termchangesinthefunctionoftheheartanditsbloodvessels,boostingheartrateandoxygenconsumption.笑確實(shí)會使心臟和血管的功能發(fā)生短期變化，加速心率和耗氧量。Hepickedupastone,onlytohaveitdroppedonhisownfoot.他搬起石頭砸了自己的腳。【知識拓展】(1)現(xiàn)在分詞(短語)作結(jié)果狀語常表示意料、情理之中的結(jié)果，其邏輯主語常常是整個主句。(2)現(xiàn)在分詞(短語)作結(jié)果狀語，有時可以改為一個which引導(dǎo)的非限制性定語從句。(3)不定式短語作結(jié)果狀語常表示出乎意料的結(jié)果，不定式前常加only。【即學(xué)即練】單句語法填空(1)Thesnowlastedaweek,

(result)inserioustrafficconfusioninthewholearea.(2)Theyreachedthecompanyoutofbreath,only

(tell)theywerefired.(3)Hewentoutoftheroomwithfewclotheson,only

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

failtoimaginehowitsnativeinhabitants,includingroyalpenguins,kingpenguins,andelephantseals,existedinperfectharmonywiththeirnaturalhabitatforthousandsofyears.他們也不難想象出那里的當(dāng)?shù)匚锓N，包括帝企鵝、王企鵝和象海豹，數(shù)千年來是如何與它們的自然棲息地和諧共存的。NeverhaveIseenasituationwhichmadehimsodisheartened.我從沒見過讓他這么沮喪的情形。Atnotimedidtheyactuallybreaktherulesofthegame,soitwasunfairtopunishthem.他們實(shí)際上從來都沒有違反比賽的規(guī)則，處罰他們是不公平的?！局R拓展】當(dāng)含有否定意義的詞或短語如never、hardly、seldom、little、few、notuntil、not、notonly、nosooner、nolonger、nowhere、bynomeans、atnotime、onnoaccount、innocase、undernocircumstances等置于句首時，其后用部分倒裝?！炯磳W(xué)即練】句型轉(zhuǎn)換(1)Iknewlittlethatshehadalreadyleft.→

.(倒裝句)(2)Inotonlyknewher,butIwasherbestfriend.→

.(倒裝句)LittledidIknowthatshehadalreadyleftNotonlydidIknowher,butIwasherbestfriend1.stormstormy2.dramadramaticaldramatically3.knowknowingunknowingunknowingly4.subsequentsubsequently5.multiplemultiply6.departdeparture7.remainremaining8.recoverrecovery認(rèn)知詞匯拓展詞匯chaoshalfwayhabitatloosevegetationerosionreserveimmunitycollapsesubstantial

Summary應(yīng)用詞匯1.appetite:developanappetitefor;loseone'sappetite2.multiply:multiple;multiplyAbyB3.decrease:decreasefrom...to...;decreaseby...;adecreasein;onthedecrease4.trap:set/lay/placeatrap;fallintoatrap;betrappedin核心短語1.inharmonywith2.takeover3.developanappetitefor4.beintroducedto5.inturn6.leadto7.benativeto8.dieout9.inconsequence10.onceandforall

1.現(xiàn)在分詞(短語)作結(jié)果狀語eg:Thegreengrassandbarerockofitslandscapecontrastdramatically,givingitawildandnaturalbeauty.2.部分倒裝eg:Norwouldthey

failtoimaginehowitsnativeinhabitants,includingroyalpenguins,kingpenguins,andelephantseals,existedinperfectharmonywiththeirnaturalhabitatforthousandsofyears.重點(diǎn)句式課時重點(diǎn)回顧Ⅰ.單詞拼寫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

(混亂).6.Thereportstatesthatthegapbetweentherichandthepoorhasincreased

(顯著地)overthepastdecade.appetiteschaos

decreasedtrapincidentdramaticallyⅡ單句語法填空1．Teenagersclimbedthestairstodeliverwaterandfoodtoelderlypeople

(trap)inpowerlesshigh-risebuildings.2．EversinceItooktheleadership