人教版高中英语必修四课件：Unit 2 Workbook lisening.ppt

1、Unit 2Working the landWorkbookListening on page 48Do you remember the poem?天苍苍,野茫茫,风吹草低见牛羊。Can we see this beautiful scene again?Can we see this beautiful scene again?1 What makes the worlds desert grow?First tick the causes you think are true.Then listen to the tape and tick what youhear.1.Heat and

2、 little rain.2.Turing forests into farmland.3.Overusing fields to feed farm animals.You think You hear4.Using new scientific farming methods.5.Wasting water in farms and at home.6.Farming too much on poor land.You thinkYou hear2 Listen to the tape again and choose the best answer to eachquestion on

3、page 48.Answer:B A BListening textWhy do we have deserts today?Deserts have not always been here.Most deserts that we have today were once green lands full of the plant life.One of todays biggest deserts is in North Africa.However,in the 1st century BC farms in the North Africa grew corn and wheat t

4、o make bread for the whole city of Rome.How did this area become desert?FIGHTING GROWING DESERTSBoth weather and people can help from a desert.Hot weather or very little rain makes the land so dry that nothing can grow.If people cut down or burn trees and plants to make land clear for farming,the wi

5、nd can blow the soil away and turn the dry land into sand.Another big problem is farming on land that is not very good.This poor land can very quickly turn into desert,if it is farmed too much.One of the biggest causes,however,is when people take their animals to the same fields to feed over and ove

6、r,and the fields finally lose all their nutrition.Because of these problems,deserts are slowly taking over green land in many parts of the world,including China.However,we can fight the growing deserts!In some parts of China people are working to prevent desert from expanding.In Xinjiang,for example

7、,some farmers are trying new scientific farming methods.These methods make it possible to use less land for crops,so farmers then can plant trees on the rest of their land!On Xinjiang,farmer used only half of his fields to grow the same amount of crops as last year.On the other half of his land,he p

8、lanted fruit trees.The work of people like this is helping to fight the worlds growing deserts.Who is he?贾思勰北魏末年和东魏时的著名农学家,为我国完整保存至今最早的农书齐民要术的作者。贾思勰具有广泛的农事知识,他深入乡里访问农家,并到田间亲自观察实验,结合古文献中的资料与自己的心得,较为系统地总结了6世纪以前中原地区的农业生产经验。齐民要术全书10卷,92篇,分别论述了各种农作物、蔬菜、果树、竹木的栽培,以及家禽家畜的饲养，农副产品加工等。尤为可贵的是,书中还记写了干旱地区的耕作、果树的嫁

9、接等,反映了北朝时期农业生产的发展情况。born-in Yidu in Shandong Provincelive-in the sixth century ADWhat did he do-research,collect information,study,do experiments and write a book called Qi Min Yao Shu.1.What made Jia Sixie become interested in improving Chinese farming?He saw how some farms produced good crops and

10、healthy animals and others did not.2.How did he think he could help farmers?He thought that when he found the best agricultural methods he would write them dawn so all farmers.1 Answer the questions.Advice for farmersKeeping seedsChoosing seeds to planthang seed-heads up to dry all winter,knock seed

11、s out when they are sownchoose ones with the best colour2 Make notes in the chart.Advice for farmersWay to get rid of weeds(1)Way to get rid of weeds(2)let animals eat them before planting turn the soil over and cover so the weeds die.Advice for farmersAutumn ploughingSpring ploughingCrops deep plou

12、ghingless deep ploughingchange crops grown in the same field every year.1.He was lost in thought.be lost in sth.全神贯注;沉浸于_ in thought,he almost ran into the car in front of him.NMET96 A.Losing B.Having lost C.Lost D.To lose Language pointsC 【简析】be lost in thought为固定搭配,意为“陷入沉思”,因此答案选C。过去分词短语lost in th

13、ought与句子主语he构成逻辑上的动宾关系,且在句中作原因状语。有关lose的短语:be lost in thought/admiration陷入沉思/敬佩不已lose ones cool 失去耐心 lose heart丧失信心lose ones heart to 爱上.be at a loss for sth.对.不知所措2.The next spring the seeds should be knocked out of their seed-heads and sown.knock out of 把.敲出来有关knock的短语:knock into sb.表示“撞在某人身上”She

14、was in such a hurry and knocked intoher teacher.她太着急了,并且撞在了老师身上。knock into 还可以表示“把敲进”Knock a long,strong stick into the earth.把一根又长又粗的木棍敲进土壤里。knock out 打败knock off (口语)停止(工作)knock up (口语)敲门叫(人)起床knock down (车等)撞倒(人)knock in敲进(钉子)等Farmers proverbs&sayings1.Yellow sky at sunset,wind in the morrow.2.日晕

15、而风2.Rain before seven,clear by eleven.雨过天晴。3.April showers bring May flowers.四月里的豪雨,会带来五月里的繁花似锦。4.Deeds are fruits,words are but leaves.行动是果实,言语只是叶子。5.Never cackle till your egg is laid.事竟成,才声张。Speaking TaskJia Sixies work was written 1,600 years ago.Is it still at all useful today?In pairs,discuss

16、the following questions and take notes on your conclusions.1 What ideas in Qi Min Yao Shu are still in farming today?2 What problems do we have today in modern farming that Jia Sixie did not have in his time?WritingUse the ideas you discussed above to write a report about how useful Jia Sixies ideas

17、 are for modern times.Use the steps on page 53 to help you.Sample writing1,600 years ago the Chinese writer Jia Sixie wrote a book Qi Min Yao Shu about good agricultural practices.Today some of Jia Sixies ideas are still very useful to our modern times,but we have some problems today that he never h

18、ad in his time.Some of Jia Sixies ideas are still very useful to our modern times.Farmers still clear their fields of weeds.They still plough deeply the first time and less deeply the second time.In addition,farmers everywhere still understand that changing crops in the fields is still important.How

19、ever,we have some problems today that Jia Sixie never faced in his time.We have environmental pollution that harms fields and crops.We have great competition in the marketplace.We have new,dangerous and powerful crop diseases.Although our modern farmers still use some of Jia Sixies ideas today,they

20、face problems that were never heard of in Jia Sixie day.一、单词拼写1._ vt.&vi.斗争;n.努力 2._ adj.感到满意的3._ n.自由;自主4._ vt.&vi.配备;装备5._ n.产量,输出量6._vt.输出 n.出口7._vt.搞乱,使糊涂8._ n.补给;vt.提供9._ adj.适当的,相配的10._vt.使膨胀 vi.发展expandstrugglesatisfiedfreedomequipoutputexportconfusesupplysuitable11._ n.摘要,概要12._ v.使流通,(使)运行1

21、3._ n.细菌14._ vt.交换;n.交流15._ n.饥饿,欲望16._ pron.凡是,无论什么17._ vt.减少,简化18._ n.营养,滋养19._ n.谷物,颗粒20._ adj.特级的,超级的summarycirculatebacteriaexchangehungerwhateverreducenutritiongrainsuper二、单词运用1.We had a _(努力)to stop the 2.criminal.2.The document will be _ (传阅)to all members.3.Ill type your report if youll bab

22、y-sit in e_.4.Our farm _ the market with fruits and vegetables.5.We should s_ the results of the exam briefly and report to the headmaster.ummarizestrugglecirculatedxchangesupplies6.Sydneys population _ rapidly in the 1960s.7.He has a _(晒黑的)face and bright eyes.8.The plane _ speed as it was approach

23、ing the airport.9.The workers there worked _ crazy,with only thirty minutes break at noon.10.He _(耕作)the farm with great success.workedexpandedsunburntreducedlike三、词语派生1.He has a _(hungry)for knowledge.2.Yuan longping is famous for _(supply)the farmers with super hybrid rice seeds.3.Some organic far

24、mers prefer _(plant)grass between to _(prevent)wind or water from carrying away the soil.hungersupplyingpreventplanting4.Mr Brook cares little about spending the money on himself or _(lead)a comfortable life.5.My mother doesnt like me wearing short skirts to church,for she doesnt think that _(suit).

25、6.I am a bit _(confuse).Is that her husband or her son she is with?leadingsuitableconfused7.Yesterday I bought 10 flavors of ice-cream -enough _(satisfy)my roommates.8.Chemical fertilizers kill both _ (help)and harmful bacteria and pests.9.He insisted that he _(suffer)from heart trouble,but I didnt

26、think so.10.Do you know that _(chat)with wise men improves your mind?to satisfyhelpfulwas sufferingchatting四、词组互译1.对有天赋 _ 2.定居 _ 3.防止;阻止 _ 4.依靠,依赖 _ 5.在许多方面 _ 6.照顾 _ 7.陷入困境 _ 8.作出解释 _ 9.谋生 _ 10.查阅,谈到 _have a gift forsettle downprevent fromdepend onin many wayscare aboutbe in troubleaccount forearn o

27、nes livingrefer to11.Thanks to _12.get rid of _13.be satisfied with _14.lead a.life _15.would rather _16.by accident _17.look forward to _18.devote to _19.break out _20.insist on _坚持多亏了.摆脱,除去对感到满意过的生活宁愿偶然地,意外地期待献身于爆发五、词组运用 从第四大题中选一个适当的词组并用其适用的形式填空。1.He got the first prize in the speech contest.2.His

28、 teacher _ his 3.performance.2.It is really a hot day.I _ stay in the house with air-conditioning than go out shopping.3.Please _ the last page of the book for answers after doing the exercises.was satisfied withwould ratherrefer to4._ your help,we could finish the task on time.5.Most of the people

29、in remote mountainous area _ poor _.6.In order to protect the rivers from being polluted,we must _ factories _ pouring waste into them.Thanks tolead a lifestop/preventfrom7.When a child knows that he _,he feels safe and secure.8.The girl struggled to_ herself _ her fears.9.Some schools _ their stude

30、nts wearing school uniforms.10.After the war _,he was taken on by a foreign company.is cared aboutrid ofinsist onbroke out六、Translate the following sentences.1.它也指用自然肥料而不是化肥种植的庄稼。It also _ crops _ with natural _ chemical fertilizers.refers togrowingrather than注:Growing 在句中充当定语,修饰crops。2.他们说,把这种肥料施在农

31、田里会使土壤含有更丰富的矿物质,而(土壤)也会更加肥沃。_,they argue,makes the soil _ and _.Putting this in their fieldsricher in mineralsso more fertile注:Putting 在句中充当状语。3.这一点很重要,因为土壤改良了,农作物的病虫害就减少了,因而有助于农作物的茁壮成长。This is important because _ _ diseases in crops and helps them grow_.developing ahealthy soilreducesstrong and hea

32、lthy注:developing在句中充当主语。4.然而使用化肥会带来很大的问题。However,_ is a big problem.using chemical fertilizers注:using 在句中充当主语。5.第一,在田地里长期遗留化学物质对土壤和水源不利。Firstly,_ in the ground for a long time is _.注：leaving 在句中充当主语。leaving chemicalsnot good for the soil orthe water supply6.不同的是,有机耕作的农民们坚持每隔两三年换种农作物。Instead,_.organi

33、c farmers insist on changing crops every two or three years注:changing在句中充当宾语。7.这些农作物将矿物质带回土壤,使之肥沃强效,适宜于种植要求土壤肥沃的农作物,例如玉米和小麦。These put the minerals back into the soil,_to grow crops that _.making it rich and healthy and readyneed rich and fertile soillike corn or wheat注:making在句中充当状语。8.但无论他们种什么,他们确保在

34、收割后留在地里的东西成为来年农作物 的天然肥料。But _ they _ that_in the ground after _ becomes a _ for the next years crops.whatever they grow make surewhat is leftharvestingnatural fertilizer注:harvesting在句中跟after一起充当时间状语。七、选词填空1.occupation,job,profession,worka.Please state your name,age and _ below.b.I have a few _ to do

35、 in the house this morning.c.Looking after children all day is hard _.d.My husband is at the very top of medical _.occupationjobsworkprofession2.cover,interviewa.I want to _ him about his research work.b.The best reporters were sent to _ the war.interviewcovercover 和 interview 辨析：cover 意为“采访”、“报道”,宾语往往为事。interview 意为“采访”,宾语往往为人。3.of fora.There is no need _ that sort of thing.b.There is no need _ hurrying;we still have time.c.There is no need _ you to worry about the matter.forofforHomeworkCollect some information about the safety and importance of green food.