新外研高中英语随堂选择性必修二UNIT5ADELICATEWORLD课件

UNIT5

Adelicateworld英语2022选择性必修第二册内容索引核心考点课堂突破随堂巩固迁移运用核心考点课堂突破1.appetiten.胃口,食欲[教材原句]Unfortunately,thecatssubsequentlydevelopedanappetiteforthebirds,too.(P50)不幸的是,这些猫随后喜欢上了吃鸟。语境巧练[单句语法填空](1)Thelongwalkhasgivenme

goodappetite.

(2)Thepublichasaninsatiableappetite

storiesaboutthefamous.

[小话题写作](3)玛丽不喜欢做艰苦的工作。Mary

hardwork.

a

for

doesn’thaveanappetitefor考点必记haveanappetiteforsth喜欢/想做某事loseone’sappetite没有食欲appetizern.开胃品appetizingadj.促进食欲的,开胃的[名师点津]appetite的基本意思是“欲望”,指人或动物对食物等的欲望;用于比喻时,可指“斗志”等。appetite既可用作可数名词,也可用作不可数名词,有复数形式。

2.multiplyv.(使)大大增加,(使)倍增[教材原句]Looseontheisland,theydidwhatrabbitsdobest—theymultipliedrapidlyandbeganeatingthenativevegetationanddiggingholes,whichcausedsoilerosion.(P50)在岛上无拘无束,它们开始做兔子最擅长的事情——它们数量快速增加,开始吃当地的植物,并打洞,造成了土壤侵蚀。语境巧练[单句语法填空](1)2

(multiply)by4makes8.

(2)Cigarettesmoking

(multiply)theriskofcancer.

(3)Itispossible

(multiply)thesebacteriainthelaboratory.

[完成句子](4)自去年以来,我们的问题成倍增加。

sincelastyear.

multipliedmultipliestomultiply

Ourproblemshavemultiplied考点必记multiplyAbyB|multiplyAandB(together)A乘以Bmultiplicityn.多种多样,多样性multipleadj.数量多的,多种多样的[名师点津]1.multiply的基本意思是“增加”,主要指通过自然繁殖而增加数量,也指同类事物在数量上无限制的重复增加。用于数学,可表示“相乘”。2.multiply既可用作及物动词,也可用作不及物动词。3.decreasev.(使)变小,(使)减少

n.减少[教材原句]Butalthoughtheviruscausedtherabbitpopulationtodecreasefrom130,000toaround10,000,italsomeantlessfoodforthecats.(P51)但是虽然病毒使得兔子数量从13万降到了大约1万,但是这也意味着猫的食物减少了。语境巧练[单句语法填空](1)Theyaremakingeveryeffort

(decrease)theproductioncost.

(2)Isyourproduction

thedecrease?

(3)Therehasbeen

decreaseinourimportsthisyear.

[小话题写作](4)今年新学生的数目从3500减少到了2500。Thisyearthenumberofnewstudents

.

todecreaseonadecreasedfrom3,500to2,500考点必记onthedecrease在减少Thereisadecreasein...……有所减少[反义词]increasev./n.增加[名师点津]decrease与lessen,reduce的含义均是“减少,变少”。decrease指逐渐地、不断地减少;lessen指数目、程度、价值、实力等的减少。reduce是普通用词,含义广。指数量、程度的降低或减少。

4.trapn.夹子,陷阱[教材原句]Inthe1980s,trapsanddogswereusedtocatchthecats.(P51)在20世纪80年代,陷阱和狗被用来捉猫。语境巧练[单句语法填空](1)LiHuahasfounditwascaughtin

trapofhisownmaking.

(2)Ifyou

(trap)somewhere,somethingfallsontoyouorblocksyourwayandpreventsyoufrommovingorescaping.

[小话题写作](3)我中计了,承认自己撒谎。I

thatIhadlied.

aaretrappedwastrappedintoadmitting考点必记setatrapfor为……设下圈套trapsbintodoingsth诱骗某人做某事[名师点津]trap作名词“夹子,陷阱”讲时是可数名词;作动词时,意为“拦住,设陷阱捕捉;诱捕”。5.explodev.突然增加[教材原句]Itturnedoutthattheydevelopedanimmunitytothevirus,andtheirnumbersexplodedonceagain.(P51)结果它们对这种病毒产生了免疫,它们的数目再次猛增语境巧练[单句语法填空](1)Tomysurprise,thepopulationofthewildanimals

(explode)sincetwoyearsago.

(2)The

(explode)ofthechemicalplanthaspoisonedmanylocalresidents.

hasexplodedexplosion[小话题写作](3)活火山随时都有可能爆发。Anactivevolcano

.

考点必记explodewithanger勃然大怒explosionn.爆炸(声)[名师点津](1)explode的基本含义是“爆炸”,主要指炸弹、油箱、锅炉等的内部能量突然释放;引申为“迅速扩大,激增”。也可用来指人“勃然大怒”“破除”等。作“破除”讲时,其宾语多为理论、信念等抽象名词。(2)explode既可作及物动词,也可作不及物动词。mayexplodeatanytime6.owev.应该做;对……负有……的义务[教材原句]Thisinterventionisalong,much-delayedendingtoasadstory,butwehumansoweittotheislandtogiveitahappyending.(P51)这种干预需要耽搁很久才能结束这个悲剧故事,但是我们人类有责任给这个岛屿一个美好的结局。语境巧练[单句语法填空](1)IfIhaveimprovedinanyway,Ioweitall

you.

(2)Weowe

tosocietytomakeourcountryabetterplace.

[小话题写作](3)为这部车我们还欠着100美元。Westill

forthecar.

[翻译句子](4)我应向他道歉。toitoweonehundreddollars

Iowehimanapology.考点必记oweitalltosb一切都归功于某人owesthtosb把某事归功于某人owesbanapology该向某人道歉oweittosbtodosth做某事是某人的责任owesbforsth因为某事欠某人钱[名师点津]owe表示“欠某人债,应该向(某人)付出”,引申为“某人对他人、国家负有感激义务等或某人把发现、原理、成就等归于他人”。owe用作及物动词,其后接名词或代词作宾语,也可接双宾语。comparisonby[句式升级](3)Wearelivingahappylife,incomparisonwiththepeoplelivinginthe1960s.(升级为过去分词短语作状语)→

thepeoplelivinginthe1960s,wearelivingahappylife.

Comparedwith/to考点必记incomparisonwith和……相比bycomparison通过对比comparev.比较,与……类似compareAwithB把A和B进行比较compareAtoB把A比作Bcomparedwith/to与……相比8.onbehalfof代表[教材原句]Itismygreatpleasuretogivealecturehereon

behalf

oftheBeatOnewithNatureAssociation.(P56)我很高兴代表“天人合一组织”发言。语境巧练[单句语法填空](1)Hespoke

behalfofallthemembersofthefacultyandstaff.

(2)Heacceptedtheinvitationonbehalf

thewholeclass.

[小话题写作](3)我将代表全体毕业生讲话.I’llmakeaspeech

.on

ofonbehalfofallthegraduates考点必记onbehalfofsb=onsb’sbehalf做某人的代表inbehalfofsb=insb’sbehalf做某人的代表或代言人represent作动词,意为“代表”。[写作佳句]On

behalf

ofthestudentsinmyclass,Iexpressourgratitudetoyouforallyouhavedoneforus.我代表我们班的同学,感谢您为我们所做的一切。9.endangeredadj.濒临灭绝的[教材原句]AlthoughendangeredelsewhereinChinaduetotheinvasionofforeignspecies,thebeesofShennongjiahavecoexistedwiththelocalpeopleforcenturies.(P57)虽然由于外来物种的入侵,这种蜜蜂在中国其他地区濒临灭绝,但是神农架的蜜蜂却与当地人共处了数个世纪。语境巧练[单句语法填空](1)Manyoftheearth’sanimalshavealreadydiedout;andseveralotherspecies

(endanger).

(2)Icyroadsareahidden

(endanger)tomotorists.

(3)Itwasa

(danger)climb,buttheybraveditout.

[小话题写作](4)我们应该竭尽全力挽救濒临灭绝的物种。Weshouldtryourbest

.

endangereddanger

dangeroustosaveendangeredspecies考点必记dangern.危险endangerv.使面临危险,危害dangerousadj.危险的indanger处于危险之中[名师点津]endangered作“濒临灭绝的”讲时,在句中作宾语、表语和补足语等。随堂巩固迁移运用Ⅰ.单句语法填空1.Theproblemsgrew,

(multiply),andcomplicatedbeyondallreason.

2.Hedidnotwanttoknowwhatrumoursyouhadheardabouthim

(subsequent).

3.Hespentalotofmoneyinsatisfyingtheappetite

excitementandamusement.

4.Hewasexaminedagainandthenwasgivenadifferent

(herb)medicine.

multipliedsubsequentlyforherbal5.Manymeasureshavebeentakentosave

(endanger)wildlifeinChina.

6.Oilpricesfellthisweektotheirlowestlevelinfourteenmonths,

(apparent)becauseofover-production.

7.Theliftbrokedownandwewere

(trap)insideit.

8.Moneywasplentiful,and

(rare)didanyoneseemverybotheredaboutlevelsofexpenditure.

9.We’vegotstablelabor,

(decrease)interestrates,andlowoilprices.

endangered

apparently

trappedrarely

decreasing10.Oatsprovidegood,

(nutrient)foodforhorses.

11.Theoriginofthisnationiswrappedinprofound

(mysterious).

12.Forwomen,the“

(biology)clock”governsthetimeforhavingchildren.

13.Thereisno

(compare)betweentheknowledgeandskillofsuchaplayerandtheordinarycasualparticipant.

14.Thispolicyhasledtoa

(dramatically)increaseinpopulation.

15.He

(greet)byhismother,herredhairwildlystreaming.

nutritiousmysterybiological

comparisondramaticwasgreetedⅡ.选词填空1.Inabsoluteterms,wageshaverisen,butnot

thecostofliving.

2.HesaidsalmonexportshadbeenfuelledbyagrowingChinesemiddleclasswho

thefish.

3.Butwehavemanaged

ouroppositionforyears.

4.

allthestudentshereIwanttothankyouforyourhelp.

5.Alocalnewspapersaidthatcrimewas