人教版高中英语必修二 （Wildlife Protection）Section A 教学课件

UNIT

2WildlifeProtectionSectionA

ListeningandSpeaking

人教版高中英语必修二动物是人类亲密的朋友,人类是动物信赖的伙伴。人类的生存不能没有动物,而动物完全可以不需要人类!保护野生动物,就是关爱人类自己。Manyanimalandplantspecieshavebecomeextinctandmanymoreareincriticaldanger.DodoThedodoisaclassicexampleofhowhumanscauseddamagetotheearth’sbiology.TheflightlessdodowasnativetotheIslandofMauritiusintheIndianOcean.Theeasilycontrolledbirdbecameasourceoffoodforsailorsandwasattackedbyanimalsintroducedtotheislandbyhumanssuchaspigs,monkeysandrats.Thepopulationofdodosrapidlydecreasedandthelastonewaskilledin1681.

RhinosTherhinohornisahighlyprizeditemforAsianmedicine.Thishasledtotheanimalbeinghuntedinitsnaturalhabitat.OncewidespreadinAfricaandEurasia,mostrhinosnowliveinprotectednaturalparksandreserves.Theirnumbershaverapidlydecreased①inthelast50years,andtheanimalsremainunderconstantthreatfrompoachers(偷猎者).WhalesTheInternationalWhalingCommissionisfightingtoensure②thesurvivalofthewhalespecies.Despitethefactthatone-thirdoftheworld’soceanshavebeendeclaredwhalesanctuaries(保护区),7outof13whalespeciesremainendangered.Collisions(碰撞)withships,poisonouspollution③andbeingcaughtinfishingnetsaresomemajorcausesofwhaledeaths.TigersThelast100yearshasseena95%reductioninthenumbersofremainingtigerstobetween5,000and7,000andtheBali,Javan,andCaspiantigersarealreadyextinct.TheSouthChinatigerisprecariously(危险地)closetodisappearing④,withonly20to30stillalive.Liketherhinohorn,tigers’bonesandorgansaresoughtafterformedicines.Theseitemsaretradedillegallyalongwithtigerskins.词海拾贝①decreasev.减少②ensurevt.保证③pollutionn.污染④disappearvi.消失典句欣赏Theeasilycontrolledbirdbecameasourceoffoodforsailorsandwasattackedbyanimalsintroducedtotheislandbyhumanssuchaspigs,monkeysandrats.翻译:这种容易被控制的鸟成了水手的食物来源,同时受到人们带来的动物,诸如猪、猴子和老鼠的攻击。分析:本句是一个简单句。句子的主语是Theeasilycontrolledbird,became和wasattacked是并列谓语,introducedtotheisland...是动词-ed形式构成的短语作定语。理解诱思1.Whatdoesthepassagemainlytellus?答案:Someextinctandendangeredanimals.2.Whatshouldwedotopreventtheseanimalsfromextinction?答案:Open.ⅠⅡⅢⅠ.知识体系图解

posterillegalhuntimmediatelyspeciesalarmrateextinctionmassⅠⅡⅢhabitatawareaverageconcernlivingadaptmeasureauthoritypressureⅠⅡⅢ究竟;到底结束灭亡;逐渐消失以惊人的速度意识到;知道平均取得进步对……关切的;为……担忧的适应在压力下;承受压力ⅠⅡⅢⅡ.释义匹配1.habitat

A.tochangesomethingtosuitdifferentconditionsoruses2.adapt B.bethebusinessofsb;trouble;bother3.concern C.theforceyouproducewhenyoupresssomething4.measure D.tofindthesize,length,oramountofsomething,usingstandardunitssuchasinches,metres,etc.5.pressure E.thenaturalsurroundingsinwhichananimaloraplantusuallylives答案:1.E

2.A

3.B

4.D

5.CⅠⅡⅢⅢ.介词填空1.Someofthewildanimalsaredyingout

analarmingrate.

2.Childrenmustattendschool

theagesof5and16.

3.I’malwaysveryaware

howmuchworkthereisstilltobedone.

4.

average,apowerfulearthquakeoccurslessthanonceeverytwoyears.

5.Whenyouare

pressure,youshoulddosomeexercisetogetrelaxed.

atbetweenofOnunder重点词汇随堂练习1.die

out灭亡;逐渐消失【课文原句】Ourplanet’s...isdying

outatanalarmingrate.我们星球上的……正以惊人的速度灭绝。【词汇精讲】dieout意为“灭亡;逐渐消失”,是固定短语。Perhapstoomuchfightingcausedthedinosaurstodie

out.或许是太多的争斗导致恐龙灭绝。Infact,halfofthe6,000—7,000languagesspokenaroundtheworldtodaywilllikelydie

outbythenextcentury.事实上,今天世界上使用的6000到7000种语言中,有一半很可能在下个世纪消失。重点词汇随堂练习【词汇拓展】Inacoldwinter,manywildanimalscandie

ofhunger.在寒冷的冬天,许多野生动物可能会饿死。Iam

dying

to

knowwhathappenedbecauseitwassostrange.我很想知道发生了什么事,因为这件事太奇怪了。重点词汇随堂练习重点词汇随堂练习2.aware

adj.知道的;发觉的;有……意识的【课文原句】Wemustmakepeopleawareoftheproblem...我们必须让人们意识到这个问题……【词汇精讲】aware是形容词,意为“知道的;发觉的;有……意识的”,常和介词of连用。Theywerenotaware

ofthehistoricsignificanceofthisflight.他们没有意识到这次飞行的历史意义。Ithinkhehasbeenaware

ofhowgreatthisclubis,andhowmuchloyalthefansare.我觉得他已经意识到了这是一家多么伟大的俱乐部,这里的球迷是多么忠诚。重点词汇随堂练习【词汇拓展】Thenhebecame

aware

thattheywereregardinghimwithinterest.这时,他意识到他们都很感兴趣地看着他。Inmyopinion,it’sveryimportanttodevelop

an

awareness

ofhealthnow.在我看来,现在提高健康意识很重要。重点词汇随堂练习重点词汇随堂练习3.average

n.平均数;平均水平adj.平均的;正常的;普通的【课文原句】Howmanyelephantsarekilledonaverageeveryday?每天平均有多少头大象被杀死?【词汇精讲】average作名词,意为“平均数;平均水平”,作形容词,意为“平均的;正常的;普通的”。TheaveragetimetheChinesepeoplespendonlineis17hoursperweek.中国人每周上网的平均时间为17个小时。Theaverageageoftheboysinthisclassisfifteen.班里面男孩子的平均年龄是15岁。重点词汇随堂练习【词汇拓展】Lastyearwasthewarmestyearonrecord,withglobaltemperature0.68℃

above

the

average.去年是有史以来最暖和的一年,全球温度比平均值高出0.68摄氏度。Tom’sworkatschoolisabove

average,Jim’sbelow

averageandJack’sup

to

average.汤姆在校学习成绩属于中上水平,吉姆的学习成绩属中下水平,杰克的学习成绩属中等水平。重点词汇随堂练习重点词汇随堂练习4.concerned

adj.担心的;关切的;相关的【课文原句】I’mconcernedabouttheAfricanelephants.我非常担忧非洲大象。【词汇精讲】句中的concerned是形容词,意为“担心的;关切的;相关的”,concern作动词时,意为“涉及;让……担忧”。ManyparentsareconcernedthatsomeTVprogramswillhaveabadinfluenceonthedevelopmentoftheirchildren.许多家长担心一些电视节目会对孩子的成长有坏的影响。Ihopethedepartmentconcernedwilldealwiththematterimmediately.我希望有关部门立刻处理这件事情。Whatconcernsmeisourlackofpreparationforthechange.让我担心的是我们对事态的变化缺乏准备。重点词汇随堂练习【词汇拓展】Sheisdeeplyconcerned

aboutyoursafety.她非常担心你的安全。As

far

as

I’m

concerned,youcan’tignorethefact.就我个人而言,你不能忽视这个事实。【温馨提示】形容词concerned作前置定语时,意为“关心的,挂念的,担心的”;作后置定语时,意为“相关的;有关的”。例如:a

concerned

look“关切的神情”;the

authorities

concerned“有关当局”。重点词汇随堂练习重点词汇随堂练习5.adapt

vi.适应vt.使适应;使适合【课文原句】Elephantsneedlargelivingspaces,soit’sdifficultforthemtoadapttothechanges.大象需要很大的生存空间,所以它们很难适应变化。【词汇精讲】adapt作不及物动词,意为“适应”,常和介词to连用,作及物动词词组,意为“使适应;使适合”。Itwasnotlongbeforethechildrenadapted

tothelifeinthecountry.不久孩子们就适应了乡下的生活。Itwastheculturethatmadeithardforhimtoadapt

to/adapt

himself

tothenewenvironmentabroad.是文化使得他很难适应国外的新环境。重点词汇随堂练习【词汇拓展】

重点词汇随堂练习Thisplaywasadapted

fromthebookBetrayed

SpringbyJackLindsay.此剧是根据杰克·林赛所著小说《被出卖了的春天》改编而成的。Thisnovelhasbeenadapted

forradiofromtheRussianoriginal.这部小说已由俄文原著改编成无线电广播节目。Whenyougotoanewcountry,youmustadapt

yourself

tonewcustoms.当你到一个新的国家,你必须使自己适应新的风俗习惯。重点词汇随堂练习重点词汇随堂练习6.measure

n.措施;方法vt.测量;估量;度量【课文原句】Whatmeasuresarebeingtakentohelpthem?正在采取什么措施来帮助它们?【词汇精讲】measure作名词,意为“措施;方法”,是可数名词;作动词,意为“测量;估量;度量”。Educationshouldn’tbemeasuredpurelybyexaminationresults.教育不应该纯粹用考试成绩来衡量。Wehaveadoptedmanymeasurestoprotectwildanimals.我们采取了许多措施来保护野生动物。重点词汇随堂练习【词汇拓展】Intheolddays,mymotheralwaysmadenewclothesto

my

own

measurewithSpringFestivalcoming.过去,妈妈在春节来临时总是为我量身做新衣服。重点词汇随堂练习重点词汇随堂练习Ⅰ.选词填空1.Nowscientistsaredoingaresearchonthe

environmentofotherspecies.

答案:living2.Theemployment

hascontinuedtoriseinbigcitiesthankstotheeffortsofthelocalgovernments.

答案:rate3.Lastyearthenumberofstudentswhograduatedwithadrivin