Unit 1 Reading P2-5 ppt课件 --（2020版）新牛津译林版高中英语必修第三册.pptx

1、 living mammal jaguar survive frog in turninsect adj.活着的，活的；在使用的活着的，活的；在使用的n.生计，谋生；生活方式生计，谋生；生活方式n.哺乳动物哺乳动物n.美洲豹，美洲虎美洲豹，美洲虎vi.生存，存活生存，存活vt.幸存，幸免于难幸存，幸免于难n.蛙，青蛙蛙，青蛙相应地，转而相应地，转而n.昆虫昆虫Words microorganism break down nutrient breathe life into carbon oxygenthus n.微生物微生物使分解（为），使变化（成）使分解（为），使变化（成）n.营养素，营养物

2、营养素，营养物给给带来起色，注入活力带来起色，注入活力n.碳碳n.氧，氧气氧，氧气adv.因此，从而；这样因此，从而；这样Words disappear due toagriculture cattle impact extinction damagevi.不复存在，灭绝，消亡；不复存在，灭绝，消亡；消失；失踪消失；失踪由于，因为由于，因为n.农业，农学农业，农学n.牛牛n.影响，作用；撞击，冲撞影响，作用；撞击，冲撞vi.&vt.有影响；冲击有影响；冲击n.灭绝，绝种灭绝，绝种vt.&n.损害，伤害，损坏，破坏损害，伤害，损坏，破坏Words Reading P2-5新牛津新牛津必修必修Bo

3、ok 3 Unit 1 Nature in the BalancePre-reading What plants or animals do you know about?What is special about them?Where do they live?Sloths are one of the slowest creatures on the Earth.They live hanging upside down in rainforest trees.Modern sloths are smaller than the extinct giant sloths which wer

4、e as big as elephants and lived on the ground.Giant redwoods are impressive because they can grow as tall as 83 metres and as wide as 21 metres.You can drive a car through their trunks.They have been around since dinosaurs roamed the Earth but are now in danger of becoming extinct.Actually,all of th

5、em live in the Amazon rainforest.How much do you know about the Amazon rainforest?The Amazon RainforestOther Name:_ _ _Location:_ _ _ _ _ _Area:_km2Bolivia,Brazil,Colombia,Ecuador,French Guiana(France),Guyana,Peru,Suriname,and Venezuelathe Amazon jungle;Amazonia;lungs of the planet5,500,000 Predicti

6、onWhat will be talked about in the text according to the title and the picture?I think the script The Amazon rainforest:a natural treasure is about the Amazon jungle and the plants and animals found there.They are all natural treasures because they are valuable to the Amazon.The pictures show that t

7、he plants and animals living in the Amazon rainforest are unusual and beautiful.There are different kinds of animals that depend on the rainforest for shelter and food.What could be the genre of the article?While-readingRead the documentary script and check if your predictions are correct.Complete t

8、he main idea of each paragraph.Para.1:Introduction to the Amazon rainforestPara.2:Basic information about the rainforestPara.3:_Para.4:_Para.5:_Understanding the textPlant biodiversity;levels of the rainforestAnimal biodiversity;food chainThe rainforests value to the human race;threats to the rainfo

9、restRead the documentary script again carefully and fill in the blanks with the figures.Read para.3 carefully and try to understand the rainforests different levels.The forests different levels support an unbelievable variety of wildlife.a system of roots the mass of leaf litter shorter plants with

10、large leaves towering ancient hardwoods the tops of the tallest treesRead para.4 carefully and try to understand the food chain.While a significant number of jaguars survive here,they are only one element of this forests food chain.JaguarsInsectsAt least 87 species,including frogsMicroorganisms Woul

11、d you please summarize the text according to the following keywords?AspectsDetailsSizePlant speciesSpecies of birds and mammalsValuesThreatsthe largest rainforest in the world;an area of around _ square kilometresmore than _;different levels40,0006 millionmore than _ species of birds and over _ spec

12、ies of mammals;jaguars and the food chainfixes carbon and produces over _of all the Earths oxygen;a treasure house of species1,30040020%_ of the rainforest lost due to human activities17%Sample answerPost-readingWhat makes the Amazon rainforest a natural treasure according to the script?The Amazon r

13、ainforest is unique,beautiful and valuable.It contains 10%of all known species on the Earth.It produces over 20%of the planets oxygen.Its wonderful plant and animal species have enabled humans to make amazing discoveries.Sample answerPost-readingWhat is your answer to the question at the end of the

14、script?Can we afford to damage the“lungs of the plant”?Discuss it with your partner.No.The Amazon rainforest is far too important for us to allow it to be destroyed.It helps maintain the balance of the ecosystem and provides our society with food and medicine.Language Points P2-5新牛津新牛津必修必修Book 3 Uni

15、t 1 Nature in the Balance1.alive with the sounds of animals.(line 1)ube alive with:be full of 充满，到处都是（活的或动的东西）Para.1【拓展】lively,alive,living,live辨析不同点不同点语法功能语法功能释义释义lively作定语(前置)、表语、主补、宾补生动的；活泼的；有生气的alive作表语(可用作后置定语，但不用作前置定语)活着的；有活力的（可用于人或动物）living作表语或定语活着的；现存的；生动的；逼真的；栩栩如生的（可用于人或动物）live作定语(前置)活着的；实况

16、转播的（一般不用于人）相同点：均可做形容词【拓展】lively,alive,living,live辨析练习：选词填空。1.他讲述了一个有关他的非洲生活的一个生动故事。He told a _ story about his life in Africa.2.你是喜欢直播还是录音？Doyoulikea_showorarecorded show?3.他买了几条活鱼。He bought some _ fish.4.他被送往医院时还活着。He was _ when he was taken to the hospital.5.拉丁语不是现代使用的语言。Latin is not a _ language.

17、livelylivelivealiveliving句意：作为世界上最大的雨林，它在维系地球生态系统的微妙平衡上扮演着举足轻重的角色。2.As the largest rainforest in the world,it plays a significant role in maintaining the fine balance of the Earths ecosystem.(line2-3)play a(significant/important)role in 在中起着(重要)作用例：People should pay more attention to the education o

18、f children because they will _ in the future of our country.人们应该增加对儿童教育的重视，因为他们会在祖国的未来扮演重要的角色。play a significant/important role inPara.13.The Amazon rainforest crosses into eight countries,including Brazil and Peru,and one overseas region of France,all on the South American continent.(line 4)句意：亚马孙雨

19、林穿过包括巴西、秘鲁在内的八个国家，以及一块法国的海外领地，都位于南美洲大陆。例：Look left and right before you cross the road.cross v.穿越；越过；横过；渡过 crossescrossingcrossedcrossed n.十字架，十字形物 crossing n.人行横道；十字路口【拓展】across 用作副词或介词，表示“横跨、横穿”，通常与go/walk连用。Para.2例:1.理查德站起来，走到了窗户那边。Richard stood up and walked _ to the window.include v.包含，包括includ

20、ing prep.包括在内included adj.包括在内的 例2：她走过地板躺在了床上。She went _ the floor and lay down on the bed.acrossacross例：1.A list of references参考 must be _.2.He was fully dressed,_ shoes.3.Her hobbies _ music and painting.includedincludinginclude4.is more than half the size of China.(line 6)倍数的常用表达方式A+be+倍数+the+名词（

21、size/length/width/height）+of+B.A+be+(n-1)倍数+比较级+than B.A+be+倍数+as+形容词原级+as+B.A+be+倍数+what从句.Para.2倍数的常用表达方式 A+be+倍数+the+名词（size/length/width/height）+of+B.A+be+(n-1)倍数+比较级+than B.A+be+倍数+as+形容词原级+as+B.A+be+倍数+what从句.u 请改写所给的句子。The size of the newly broadened library is three times what the previous o

22、ne was.1.The newly broadened library is _ the previous one.2.The newly broadened library is _ the previous one.3.The newly broadened library is _ the previous one.Para.25.in length-roughly 100 kilometres (line 8)uadv.approximately but not exactly 大约；大致uadv.not being careful and gentle 粗鲁地uadv.in a w

23、ay that does not leave a smooth surface粗糙地Para.26.the richest biodiversity on the Earth(line 10)un.the existence of a large number of different kinds of animals and plants which make a balanced environment生物多样性diverse adj.各种各样的diversify v.使多样化1.The building houses a wide and _(diversity)variety of a

24、ntiques古董.2.The lecture focuses on the cultural _(diverse)of Latin America.3.There is a need for _(great)diversity and choice in education.4.Manufacturers制造商 have been encouraged _(diversify)and improve quality.diversediversitygreaterto diversifyPara.37.an unbelievable variety of.(line 15)uadj.impre

25、ssive,incredible 难以置信的adv.unbelievablyIt is unbelievable that令人震惊的是1.We had _ unbelievable time in Paris.2._ is unbelievable that he can accept this sort of behavior.3.What you did was _(unbelievable)stupid.anItunbelievablyPara.38.an unbelievable variety of.(line 15)u n.variety 不同种类；变化，多样性 a(wide/gr

26、eat/large)variety of 各种各样的；种类繁多的“a variety of+复数名词”作主语时，谓语动词用复数；“the variety of+复数名词”意为“.的品种”，作主语时，谓语动词用单数形式。adj.various 各种各样的 v.vary (彼此)相异；变化，多变 vary from.to.从.到.之间变化/不等Para.39.the towering ancient hardwoods,.(line 17)uadj.extremely tall or high and therefore impressive高大的，屹立的uadj.of extremely hig

27、h quality 卓越的，杰出的tower n.a tall narrow building 塔tower v.to be much higher or taller than the people or things that are near 高于，超过tower v.to be much better than others in ability 胜过utower above/over sb./sth.高出，超过，胜过1.He stood up and _(tower)over her.2.He remains a _(tower)figure in rock and roll摇摆舞.

28、3.Can you see several towering _(cliff)over there那里?toweredtoweringcliffsPara.310.home to different kinds of(line 19)un.the place where a plant or animal usually lives栖息地uadj.家庭的，家用的，本国的，主场的uhome and abroad 国内外uhomely adj.相貌平平的；犹如在家的1.To put it simply,charging tourists from home and abroad _(differe

29、nt)is far from fair.2.The man was _(home)and overweight.3.Sit down and make _(you)at home.4.Is the match on Saturday at home _ away?differentlyhomelyyourselforPara.411.in turn,feed on insects(line 33)uin turn 依次；反过来ufeed on 以为食Para.412.break down its bodyto the earth(line 28)ubreak down 出故障；（讨论）失败；分

30、解；崩溃uearth n.the substance on the land surface or the earth土壤on earth 到底，究竟break in 破门而入，打断break into破门而入，突然起来break out 爆发break up（关系）破裂句意：亚马逊雨林通过固定碳和产生地球上20%以上的氧气来给地球带来生机。13.The Amazon rainforest breathes life into the planet by fixing carbon and producing over 20 per cent of all the Earths oxygen.

31、(line 30-31)breathe life into 带来生机，注入活力例：1.我们需要一些新鲜血液给该项目注入活力。We need some new people to _.2.教师应当给自己所授学科注入新的活力。A teacher should try to _ his subject.breathe life into thisprojectbreathe new life intoPara.5Holdyourbreathforacountoffive,then slowly breathe out.After a long training,she stopped to take

32、 breath.He recited the whole poem in one breath.She was slightly out of breath from running.【拓展】breathe v.呼吸；低语；松口气breath n.呼吸，气息NoImagebreath/breathe相关短语相关短语屏住呼吸屏住呼吸呼气呼气歇口气歇口气一口气；同时一口气；同时上气不接下气上气不接下气Para.514.these irreplaceable plants(line 33)uadj.too valuable or special to be replaced不可替代的ureplace

33、-replaceable-irreplaceable1.He could see I was not so _(easy)replaceable.2.They are priceless,unique and _(replaceable).3.Education plays _ irreplaceable role in ones life.4.The harsh reality(残酷的现实)is _ nobody is irreplaceable.easilyirreplaceableanthatPara.515.in danger of extinction(line 37)un.a si

34、tuation in which a plant or an animal stops existing 灭绝extinct adj.绝种的，不复存在的；死的（火山）1.Their jobs are faced with _(extinct)as a result of declining sales.2.Many of the rain forest animals may become _(extinction)in less than 10 years.3._ is known to all,the panda is in danger of extinction.4._is known

35、 to all that the panda is in danger of extinction.extinctionextinctAsItAnalysis on difficult sentences.1.The Amazon River,from which the rainforest gets its name,is close to 6400 kilometres in length-roughly 100 kilometres longer than the Yangtze River.(lines 7-8)u思考：为什么用from which?u 首先，受短语get its n

36、ame from的影响，需用介词from;另外，此处构成介词介词+关代关代的结构，先行词为The Amazon River，故用from which。Sentence AnalysisSentence Translation1.be alive with2.play a significant role in 3.more than half the size of 4.in length5.roughly6.biodiversity7.unbelievable8.variety9.towering10.be home to 11.feed on12.in turn13.break down1

37、4.the earth15.breathe life into 16.irreplaceable17.impact18.extinction1._ the largest rainforest in the world,it plays _ significant role in maintaining the fine balance of the _(Earth)ecosystem.2.The Amazon River,from _ the rainforest gets its name,is close to 6400 kilometres _ length.3.One in ten

38、_(know)species in the world can be found here.4.These water lilies are big enough _(lie)down on.5.The forests different levels support an _(believe)variety of wildlife.AsEarthswhichknownText Reviewunbelievableto lieain6.Then there are the _(tower)ancient hardwoods.7.Each level of the forest forms it

39、s own little world,home _ different kinds of living things.8.They feed _ at least 87 species,_(include)frogs.9.Yet there is one major danger to these _(replace)plants and animals:us.10.Over the past 50 years,about 17 percent of the rainforest _(disappear)due to human activities.toweringontoincluding

40、irreplaceablehas disappeared11.As a result,most of the forests nutrients are locked up in the plants themselves,thus _(allow)them to grow _an unbelievable speed.allowingatThe passage below is from a website about the Amazon rainforest.Complete the passage with the correct forms of the words and phra

41、ses in the box below.agriculture impact thus due to variety survive beneath break downThe Amazon rainforest is home to a great(1)_ of plant life;however,its soil is surprisingly poor in nutrients.In fact,the soil in the region cannot support (2)_ for more than a few years.If a scientist is shown a r

42、eport listing the nutrients of that soil,he or she will probably think that only desert plants can(3)_in it!Then why is the soil so poor in nutrients?For one thing,the rainy season has a(n)varietyagriculturesurvive(4)_ on the soil.In the rainy season,the water level can rise to more than 12 metres.W

43、hen the water goes away,it takes away the nutrients in the soil.For another thing,(5)_ the Amazons hot climate,it is difficult for the soil to build up enough nutrients.Dead plants and animals(6)_ more quickly.The nutrients are soon taken in bythe roots of the plants deep(7)_ the ground.As a result,

44、most of the forests nutrients are locked up in the plants themselves,(8)_ allowing them to grow at an unbelievable speed.agriculture impact thus due to variety survive beneath break downimpactdue toare broken down beneaththusBuilding your languageNote the following prefixes,then fill in the table be

45、low with as many words as you can.PrefixesWordsun-unbelievabledis-disappear in-/im-/il-/ir-irreplaceablenon-non-smokinguncomfortable,unclear,uncommon,unconditional,unabledisagree,disadvantage,disappoint impossible,independent,illegalnon-renewable,non-profit,non-stopNegative prefixes1.You will be _(a

46、ble)to pass the exam if you dont study hard.2.If someone doesnt show good manners to others,he is _(polite).3.Simon is such a(n)_(honest)person that no one believes him.4.It is so _(fair).Mary gets more money for less work.5.They looked poor and _(healthy).6.Would you let other peoples _(sense)chang

47、e your mood?7.It is _(friendly)of him to say such bad words to his classmates.unfriendlyimpolitedishonestunfairunhealthynonsenseunableFill in the blanks with words with negative prefixes.Make comparisons with familiar places or objectsNoImageWhile the reader may find a large figure too abstract to u

48、nderstand,making comparisons with familiar places or objects will help them gain a better understanding.Learn thisThe documentary script compares the size of the Amazon rainforest with that of China,and the length of the Amazon River with that of the Yangtze River.Here are some expressions used to m

49、ake comparisons:Make comparisons with familiar places or objectsthe same size/length as.as large/long as.more than/larger than/longer than.twice/three times as large/long as.Background Information:Think of similar comparisons for the figures below.It was reported that in 2011,about 34 million people

50、 lived in the Amazonthat is 10 million more than the population of Shanghai.It was reported that in 2011,about 34 million people lived in the Amazonthat is about Canadas total population.It was reported that in 2011,about 34 million people lived in the Amazon.(population of Canada:37 million;populat