新英语教程第一册unit5.ppt

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1、New English Course(Reading)黄黄 贵贵 赵伟兴赵伟兴 肖肖 薇薇 Part A:BeaversNew English Course(Book One)5Pre-reading ActivitiesText AnalysisSupplementary ExercisesWriting PracticeCultural ReadingsPart A:BeaversNew English Course(Book One)5Pre-reading ActivitiesWarm-up QuestionsBackground InformationPart A:BeaversNe

2、w English Course(Book One)5What animal do you see in this picture?Background InformationInformationPre-reading Activities IPart A:BeaversNew English Course(Book One)5Geographical range 生活领域生活领域 Physical characteristics 身体特点身体特点Reproduction 生育繁殖生育繁殖Behavior 生活习性生活习性Part A:BeaversNew English Course(Bo

3、ok One)5 Geographical range 生活领域生活领域 Beavers are found throughout North America,except for the Southwest,and Mexico.Beavers live in streams,rivers,and lakes where trees are abundant.(in a large amount):temperate(温带)forest&rainforest,freshwater lake,freshwater rivers Physical characteristics 身体特点身体特点

4、Beavers are primarily growing or living in or near water.They have waterproof,rich,glossy(光滑的),brown fur,and large,black,webbed(有蹼的)feet.Their powerful hind legs also increase their swimming ability.Part A:BeaversNew English Course(Book One)5 Reproduction 生殖繁育生殖繁育 Female beavers are mature at 2.5 ye

5、ars old.They give birth to one litter of kits per year,usually between April and July.The gestation(怀孕)period is about 3 months.The litter usually consists of 4 kits,but up to 8 are possible.They are born with all of their fur,their eyes open,and their incisor teeth（门齿）erupted.The young usually stay

6、 with parents for 1-2 years and then leave to make their own homes.Part A:BeaversNew English Course(Book One)5 Behavior 生活习性生活习性 Beavers form pairs and usually live in family groups of up to 8 related individuals.Beaver families are territorial and defend against other families.In order to warn each

7、 other of danger,beavers slap their tails against the water,creating a powerful noise.Beavers are only occasionally seen during the day.They usually wake at dusk(昼伏夜出).BackPart A:BeaversNew English Course(Book One)5Warm-up QuestionsWarm-up QuestionsPre-reading Activities IIHave you heard or ever rea

8、d about beavers?What do you know about it?What do you expect to learn from the text?BackPart A:BeaversNew English Course(Book One)5words&expressionsNew WordsListening analysis oftextPhrasesLanguage studyOutline Part A:BeaversNew English Course(Book One)5Backengineering n.dam n.construct vt.nearby a.

9、pond n.mud n.project n./v.shelter n.chamber n.view n.tunnel n.regulate vt.vertical a.convenience n.essential a.bark n.diameter n.ability n.trunk n.female n.paw n.drag v.chin n.Part A:BeaversNew English Course(Book One)5 after all 毕竟 to hold back阻挡，抵制 to draw on/upon利用，支取 from point of view 从 角度看 due

10、 to 由于 to project against保护，免受 to a large extent在很大程度上 to pick ones way小心地走 to deal with处理，对待BackPart A:BeaversNew English Course(Book One)5 Many people believe that beavers are intelligent animals.After all,their dams are fine examples of engineering.The engineering skills of beavers are well known

11、,but it will be useful to recall their main features.A pair of beavers will construct a dam across a river.The water held back by the dam overflows the bank on either side of the river,flooding the nearby ground and forming a pond.At some point in the pond the beavers then build their home,which is

12、called a lodge.Part A:BeaversNew English Course(Book One)5This consists of a cone-shaped pile of branches and sticks of two to six feet in length held together with mud and stones,the top of which projects above the waterline.It serves as a shelter from the elements,a refuge from enemies and a base

13、for food supplies to be drawn upon in winter.From an engineering point of view the lodge could hardly be improved.Not only does it contain a central chamber just above water level,but it also has one or more escape tunnels,well-insulated walls and a vertical chimney,which regulates the temperature i

14、nside and gives air-conditioning.Part A:BeaversNew English Course(Book One)5It is altogether a clever piece of construction,with all modern conveniences.It is,in fact,better protected against the effects of flooding than many human houses.Trees are essential to beavers.They eat the bark on the upper

15、 branches,and in order to reach these they must fell the trees.Tree felling is a skilled job,as anyone who has felled even a young tree knows.But beavers fell more than young trees.A pair is Part A:BeaversNew English Course(Book One)5said to be able to fell a tree four inches in diameter in 15 minut

16、es.They do by gnawing all round the trunk,as high up from the ground as they can reach.They often build platforms of mud and earth to enable them to cut through the tree where the trunk is narrower.The engineering skill of beavers is to a large extent a result of their ability to use their front paw

17、s as hands.A female will carry her young held under her chin with her front paws,walking on her hind legs.Part A:BeaversNew English Course(Book One)5A similar method is used by all beavers when transporting stones or mud,although they also carry such materials on their broad flat tails.The forepaws

18、are also used for digging and for dragging heavier logs.It is easy,therefore,to see why people should talk about the beavers skill,cleverness and intelligence.However,the structure of the beavers brain gives no indication that the animal is any more intelligent than other rodents.Part A:BeaversNew E

19、nglish Course(Book One)5Many of its actions,which appear to be the result of a higher order of reasoning,can be shown to be due to instinct and are suspected of being the outcome of an inborn pattern of behavior.BackGrammar pointPart A:BeaversNew English Course(Book One)5 Try to recall exactly what

20、happened.The ambassador was recalled when the war broke out.recallExample Example recall vt/n.to bring sth./sb.back into mind by thinking 回忆，记起，回想 vt.withdraw,to order sb.to return 召回Phrases Phrases recall sb.to sth.使某人重新注意到或意识到这事物beyond past recall 想不起来的，不能取消的Part A:BeaversNew English Course(Book O

21、ne)5The bridge is constructed largelyof concrete.It is really a well-constructed novel.constructconstruct vt.build,put or fit together,form建造，构造，创立Example Example Part A:BeaversNew English Course(Book One)5 hold back hold back(from sth.)因恐惧或不情愿而退缩踌躇 She held back from telling him what she thought of

22、 him.hold sb.sth.back 阻止阻挡控制或限制某人或事物 The dam was not strong enough to hold back the flood waters.hold sth.back 不表现或不流露感情 He bravely held back his tears.Part A:BeaversNew English Course(Book One)5Sentence comprehensiontwo to six feet in length=two to six feet longExample Example The room is 30 square

23、 meters in area.The lake is 4m in depth.The mountain is 2000 meters in height.The box is 50kg in weight.Part A:BeaversNew English Course(Book One)5projectproject vi.to stick out,extend forward 凸出，伸出 vt.to cause to fall on a surface,to throw or cast forward 投射，放映 Example Example The house has a balco

24、ny that projects over the street.We dont have a screen,but we can project the slides onto the back wall.Part A:BeaversNew English Course(Book One)5n.1）a plan or scheme 计划，工程 2）task which requires students to do their own research and hand in the results 项目Example Example More and more money is being

25、 put into scientific research projects.The class are doing a project on the cultural revolution 30 years ago.Part A:BeaversNew English Course(Book One)5serve asto serve as:to fulfill one requirement or to achieve some certain purpose满足需要，达到目的Example Example The box serves as a table.In the absence o

26、f anything better the sofa could serve as a bed for a couple of nights.Its not exactly what I wanted but it will serve my purpose.Part A:BeaversNew English Course(Book One)5viewview n.a personal opinion,thought,belief,etc.about sth.观点，见解，意见Example Example In my point of view,George is able enough to

27、 cope with team.We will agree with the committees views.Old views are being rapidly changed by theprogress of science.Part A:BeaversNew English Course(Book One)5view vt.to consider,regard as,look at认为，观察，观看 Example Example The subject may be viewed in various ways.How do you view your chances of suc

28、cess?Phrases Phrases in view of sth.鉴于，由于，考虑到Part A:BeaversNew English Course(Book One)5flexibilitySentence comprehension“It is,in fact,better protected against the effects of flooding than many human houses.”How to paraphrase this sentence?key The lodge is built so well that it seems impossible to

29、improve it.It is a shelter stronger than many human houses when floods come.Part A:BeaversNew English Course(Book One)5essentialessential a.necessary(for,to),most important 本质的，实质的，基本的，精华的 n.basically necessary elements 本职，实质，要素，要点Example Example Its essential that you attend all the classes.Learn t

30、he essentials first,then learn the details.Part A:BeaversNew English Course(Book One)5to a large extentto a large extent:in a large degree 在很大程度上It was his own fault to a large extent.Example Example Phrases Phrases to the extent to some extent to such an extent/to the extent thatto what extent达到某种程

31、度Part A:BeaversNew English Course(Book One)5her young“ones young”means“ones young sons or daughters”“the young”means“young people”Example Example Football is a game for the young.Animals will often fight to deathto protect their young.Part A:BeaversNew English Course(Book One)5dragdrag vt.to pull(a

32、heavy thing)along vi.to move slowly and with effort 拖，拽，缓慢而费力的行动Example Example Dont try to drag me into your plans.The meeting dragged on for a long time.The man was so weak that he could just drag about.Part A:BeaversNew English Course(Book One)5indicationindication n.a sign or suggestion by which

33、 you can judge what will happen 指示，迹象，暗示indicate v.show,suggest or represent 指出，显示，预示，象征Example Example There are indications that the situation may be improving.With a nod of his head he indicated to me where I should sit.Part A:BeaversNew English Course(Book One)5reasonreason n.cause,grounds;the p

34、ower of thinking 原因，理由，理智 vt.to argue,give an opinion based on reason 推论，辩论 vi.(with)to argue,persuade 争论，说服，劝说Example Example I reasoned from his silence that he was unhappy.Her parents have tried to reason with her,but she just wont listen to them.Part A:BeaversNew English Course(Book One)5by reas

35、on of sth.因为或由于某事物inwithin reason 理智的，合理的beyond past all reason 不合道理的,无法接受reason with sb.为说服某人而与之理论Phrases Phrases Part A:BeaversNew English Course(Book One)5suspect suspect：vt.sb.of sth.:to think that sb.is probably guilty of sth.illegal or dishonest 怀疑某人（有罪或做了违法的事）vt.that,sb.to do:to suppose or gu

36、ess 猜想，对 有所察觉 a.Open to or viewed with suspicion:可疑的，受到怀疑的 n.a person believed to have committed a crime 嫌疑犯，令人怀疑的人Part A:BeaversNew English Course(Book One)5Compare：suspect&doubt 这一对词均表示“怀疑”的意思，区别在于suspect 对后面的内容加以肯定，强调“猜想”；怀疑某事 已经存在或将会发生；I suspect him to be a thief.我猜他是个骗子。I suspect that he will c

37、ome.我猜他会来的。而doubt对后面的内容加以否定，对某人说的话不 相信或对今后某人某事是否成功把握不大。Do you doubt my word?你以为我没讲真话吗？I doubt if he will come.我猜他不会来了。Part A:BeaversNew English Course(Book One)5Grammar:Inversion 倒装L.15 “not onlybut also”如果谓语提到主语前面，则句子为倒装语序 （inverted order).若是整个谓语提前，则为 全部倒装全部倒装(full inversion).如：There comes the bus!

38、Down fell several apples.有时只部分谓语提前，则为部分倒装部分倒装(partial inversion).如：How are you doing?Why didnt you come?Part A:BeaversNew English Course(Book One)51).当句首为当句首为方位词或拟声词方位词或拟声词，谓语动词为，谓语动词为go，come等表示位置移动的动作动词而主语又较长时，通常等表示位置移动的动作动词而主语又较长时，通常用全部倒装。用全部倒装。The door burst open and in rushed the crowd.Bang!Bang

39、!Bang!Came three reports of fore-crackers.2).当句首状语为当句首状语为表示地点的介词词组表示地点的介词词组时，也常常引时，也常常引起全部倒装。起全部倒装。In this chapter will be found an answer.From the room came a sound.Part A:BeaversNew English Course(Book One)53).当句首状语为当句首状语为否定词或带有否定意义的词语否定词或带有否定意义的词语时，时，一般引起局部倒装。一般引起局部倒装。When I was at school,on no a

40、ccount were we allowed to take the magazines out of the reading room.Hardly had he finished his work when the telephone rang.4).当当方式或频度状语等移至句首方式或频度状语等移至句首时，有时也引起局时，有时也引起局部倒装。部倒装。Many a time has Mike given me good advice.Part A:BeaversNew English Course(Book One)55).句首状语若有句首状语若有only+介词词组介词词组(P.p)或状语分

41、句或状语分句(adverbial clause)构成，也可引起局部倒装。构成，也可引起局部倒装。就是在昨天他才发现他的表不见了。就是在昨天他才发现他的表不见了。Only yesterday did he find out that his watch was missing.6).以关联词以关联词so开头开头的句子，通常引起局部倒装。的句子，通常引起局部倒装。记号太小了，我根本看不见它！记号太小了，我根本看不见它！So small was the mark that I could hardly see it.Part A:BeaversNew English Course(Book One)

42、5活学活用活学活用Change the following sentences into inversion pattern.1.They little realized that they had made an important discovery in science.2.3.2.He had no sooner put down the receiver than the telephone rang again.4.Little did they realize No sooner had he put Part A:BeaversNew English Course(Book O

43、ne)53.We must on no account make any concession in this connection.4.She was so absorbed in the week that she often forgot to take her meals.On no account must we So absorbed was she Part A:BeaversNew English Course(Book One)5Outline of the text1.Its necessary to recall the characteristics of Beaver

44、s home.2.2.A vivid description of Beavers building a home.3.Beavers hut needs no improvement from engineering point of view:4.1)How for beavers to fall a tree5.2)The excellent engineering is to a large extent due to 6.beavers front paws used as hands.4.Conclusion:Though beavers talent doesnt indicat

45、e its 5.cleverness than the other rodents,its intelligence shows 6.its own instinct,which is even better than human beings.BackPart A:BeaversNew English Course(Book One)5Summary fillingVocabulary&structureTranslationExercisesPart A:BeaversNew English Course(Book One)5Back Beavers are believed to be

46、_ animals.They are well known for their _.They are able to _ dams across streams to maintain the water level.Beavers are _with broad,flat tails.With their large teeth,theycan _ trees and eat the bark.Beaversappear to be very clever and skillful animals.Butit is more likely that their _ are just due

47、to _ and are the outcome of an _behavior pattern.intelligentengineeringconstructrodentfellactionsinstinctinbornSummary fillingDirection:The following passage is the summary of the text,put the missing words in the blanks according your understanding of the text.Part A:BeaversNew English Course(Book

48、One)51.To reason,reason,reasoning,reasonable,reasonably2.a.There is no _ to get excited.3.b.The police were _ with the hijackers to at least let the 4.children go.5.c.If you tell him what happened,he will know.He is a _ man.6.d.It seems to me that this _ is altogether sound.7.e.Stop shouting and let

49、s discuss it _.8.2.To project,project,projector3.a.The clouds _ their shadows on the grass.4.b.A _ is a device for showing films or images on a screen or other surface.5.c.The upper storey _ over the street.6.d.In our third year at the school everyone has to do a special _.Backreasonreasoningreasona

50、blereasoningreasonablyprojectprojectorprojectsprojectVocabulary&structureDirections:Use the appropriate forms of the words listed to fill the blanks of the following sentences.Part A:BeaversNew English Course(Book One)51.这就是你要的书。这就是你要的书。2.只有这样我们才有希望把工作好。只有这样我们才有希望把工作好。3.直到昨天我才知道他去美国了。直到昨天我才知道他去美国了。4