人教版必修4Unit2.ppt

必修 4Unit 2 Working the land Ⅰ.写出下列必考单词1.统计数字，统计资料 n. _______________2.晒黑的adj. _______________3.产量，输出n. _______________4.十年，十年期 n. _______________5.特级的，超级的adj. _______________6.矿物，矿石n. _______________7.战役，战斗，斗争n. _______________8.细菌n. _______________9.因此，所以adv. _______________10.谷物，粮食，颗粒n. _______________11.根，根源n. _______________12.土壤n. _______________13.营养,滋养,食物n. _______________statisticssunburntoutputdecadesupermineralbattlebacteriathereforegrainrootsoilnutrition Ⅱ.写出下列单词的变化形式1.使变大，伸展，阐述（vt.&vi.）_____________；扩大，扩展，膨胀（n.）_____________；有扩大或扩展性的（adj.）_____________ 2.输出，出口（vt.&vi.）_____________；输出，出口（n.）_________________ ；出口商，出口国（n.）_________3.使迷惑；使为难（vt.）_____________；迷惑,惶惑（n.）_____________4.循环；流传（vt.&vi.） _____________；循环；流传，发行量（n.）_______________；循环的，环绕的（adj.）_____________5.总结，摘要，概要（n.）_____________；总结,概括（v.）_____________expandexpansionexpansiveexportexportation/exportexporterconfuseconfusioncirculatecirculationcircularsummarysummarize6.配备，装备（vt.&vi.）_____________；配备，装备（n.）____________ ；配备好的，有装备的（adj.）_____________7.化学的，关于化学的（adj.）_____________；化学（n.）______________；化学家（n.）_____________8.生产，制造（n.）_____________；生产，制造（v.）_____________；生产商，制造者（n.）____________9.发现（v.）_____________；发现（n.） _____________；发现者（n.）_____________10.细菌(单数)（n.）_____________；细菌(复数) _____________ bacteria equipequipmentequippedchemicalchemistrychemistproductionproduceproducerdiscoverdiscoverydiscovererbacteriumⅢ.翻译下列必背短语1.多亏,由于 ______________2.逐渐增强，建立，开发 ______________3.摆脱,除去 ______________4.对……感到满意 ______________5.集中（注意力，精力等） ______________6.使……免受（影响，伤害等） ______________7.对……作出评论 ______________8.导致，造成（后果） _______________thanks tobuild uprid...ofbe satisfied withfocus onkeep...free from/ofmake a comment onlead to struggle expand rid equip export confuse regret focus reduce underline comment ◆活学活用用上述动词的适当形式填空。

1.The importance of protecting the forest _________ again and again, but people there are still cutting down trees.2.________ with modern equipment, our school laboratory is a good place for us to research on science.Ⅳ.单元重点动词3.A lot of TV sets made in China _________ to Africa.4.The expert suggested ____________ the local airport to meet the increasing need of transportation.5.He refused ____________ on their decision although he didn，t think they did a wise thing.6.For almost 5 decades, people in that country _______ against the invaders for independence.答案：1.has been underlined2.Equipped3.are exported4.expanding5.to comment6.were struggling Ⅴ.重点句型1.What do you think would happen if tomorrow there were suddenly no rice to eat?(P9)如果明天突然没有米饭吃会发生什么？剖析：这个句子用了虚拟语气,表示可能性很小的对将来情况的一种假设。

从句的动词用过去式(be用were)，主句的动词用should (would，could，might)+动词原形 答案：（1）were； would be（2）If he were strongly against your suggestion, what would you do?◆活学活用模仿造句(1)要是他明天来了，一切就好办了If he _________ here tomorrow, everything _______OK.(2)如果他坚决反对这个建议,你怎么办呢?_____________________________________________2.Using his hybrid rice, farmers are producing harvests twice as large as before.(P10)用他的杂交水稻种子，农民们种出的粮食比以前多了一倍剖析：形容词原级as...as的前面可以用倍数词(half, twice, three times等)，意思为“是……多少倍”◆活学活用模仿造句(1)卧室是厨房的两倍大The bedroom is ____________ as ____________ as the kitchen.(2)来的人数是我们预料的三倍。

_____________________________________________ 答案:（1）twice; big（2）We got three times as many people as we had expected.Ⅵ.语篇领悟根据课文Working the land完成下列短文 Dr Yuan Longping was a pioneer of agriculture in China. He 1 (graduate) from Southwest Agriculture in 1953. Since then he devoted his life 2 finding ways to grow more rice. The rice farmers are now producing harvest twice 3 large as before 4 using this kind of rice. 5 he was not satisfied with his work. Although now he leads a rich life, he 6 insists on his work to develop his rice. I think his work is really important to the world. Because of his hard work, the production of food 7 (improve). And the 答案：1.graduated2.to3.as4.by5.But 6.still7.has been improved8.hunger9.Thanks10.fromproblem of 8 (hungry) can be solved. 9  to Yuan Longping，s great work, millions of people can benefit 10 his extraordinary work.Ⅶ.考点活用用本单元所学词组、句型翻译下列短文 中国的农民曾经过着很艰苦的生活，并一直受着饥饿的困扰。

几十年来，他们努力寻找能够提高粮食产量的方法，但收效甚微现在，情况有了改变多亏了袁博士的杂交水稻研究，农民们种出的粮食比以前多了一倍这意味着世界22%的人口摆脱了饥饿大多数农民都很满意现在的生活，宁愿呆在农村当农民____________________________________________________________________________________________________________________________________________________________________________________答案： Farmers in China used to live a hard life and was always disturbed by hunger. For decades, they struggled to search for ways to increase rice harvests, but without success. Now, things have changed. Thanks to Dr.Yuan，s research on the hybrid rice, farmers are producing harvests twice as large as before, which means 22% of the world，s people have got rid of hunger. Most of the farmers say they are now quite satisfied with their life and would much rather be a farmer in the countryside.自主学习自主学习1.At that time, hunger was a disturbing problem in many parts of the countryside.(P10)当时饥荒是许多农村地区面临的严重问题。

◆词语归纳hunger n./v.饥饿；渴望；使……饥饿hungry adj.饥饿的；渴望的die of hunger 死于饥饿hunger for/after sth.渴望go hungry挨饿◆即学即练根据括号内的汉语提示完成句子（1）The little boy who ran away from home soon felt ____________ .（饥饿）（2）It，s terrible to_________ news when the family，s letters don，t arrive.（渴望）（3）Many people in Africa had to(挨饿) ________and some even _________(死于饥饿)because of the lack of grain.答案：（1）hungry （2）hunger for （3）go hungry (4)die of hunger 2.Dr.Yuan searched for a way to increase rice harvests without expanding the area of fields.(P10)袁博士在不增加土地面积的基础上寻求达到增收的途径。

◆词语辨析search for；in search of；look forsearch for 搜寻（动词词组）in search of 搜寻（介词词组）search...for 搜查某地/某人寻找某物The dogs were in the forest in search of/looking for/searching for clues of the criminals.=The dogs searched the forest for clues of the criminals.=The dogs were in the forest to look for clues of the criminals. ◆即学即练选用上述短语填空(1)The poor professor felt everywhere on the floor _____________ his glasses.(2)The police ____________ the thief ____________ the lost wallet.(3)What are you _____________？You，ve been on net for ages.答案：(1)in search of/searching for/looking for(2)searched...for (3)looking for/searching for 3.Thanks to his research, the UN is trying to rid the world of hunger.(P10)由于他的研究，联合国正在使世界摆脱饥饿。

thanks to=because of由于；多亏 ◆即学即练完成下列句子(1) ____________(多亏你的帮助),we were successful.(2) ___________(幸亏他体质好),Jack was able to pull through his recent serious illness.答案：(1)Thanks to your help (2)Thanks to his strong constitution 4.You might guess that Dr Yuan, who is now rich and famous, is satisfied with his life.(P10)你可能会以为袁博士现在富裕了，出了名，他对生活就满足了◆词语拓展 satisfy one，s needs满足某人的需要be satisfied with 对……满意with satisfaction 满意地to one，s satisfaction 使某人满意的是……be far from satisfactory 远远不能让人满意satisfy vt. 使满意,使确信,使消除疑虑◆即学即练A.将下列句子译成英语。

(1)考试结果让我们大家都满意________________________________________ (2)他圆满的解释消除了我的顾虑________________________________________  答案：(1)The result of the examination satisfied us all.(2)His satisfactory explanation satisfied my doubts.◆即学即练B.选用上述单词或短语完成下列小片段 In order to(1)________ the needs of my wife, I worked hard day and night. However, one day, the manager told me though many clients(2)________ my work, as a top salesman, it(3)_________.At that time I knew if I wanted(4) __________ my boss, I must work harder and harder. I did so. A few months later, I was asked to go to the manager，s office. He looked at me(5)_________ and(6)________, he told me I was promoted as department manager.答案：B.(1)satisfy (2)were satisfied with (3)was far from satisfactory (4)to satisfy (5)with satisfaction (6)to my satisfaction5.Indeed,he believes that a person with too much money has more, rather than fewer troubles.(P10)他确实认为，一个人有了太多钱，他的麻烦事只会更多，而不是更少。

◆句型归纳rather than 而不是would rather do sth.than do sth.else.宁愿干某事，而不愿干某事would do sth.rather than do sth.else.宁愿干某事，而不愿干某事would rather that sb.did/had done sth.宁愿某人干/干过某事prefer to do sth.rather than do sth.else.宁愿干某事，而不愿干某事prefer doing sth.to doing sth.else.宁愿干某事，而不愿干某事◆即学即练完成下列句子（1）We ___________live in the countryside ________ in the city.（2）I __________ you were here now.（3）He __________staying home _________ climbing the mountain with his parents.（4）It is you _____________ he that is to blame.答案：（1）would rather; than （2）would rather （3）prefers; to （4）rather than6.He therefore gives millions of yuan to equip others for their research in agriculture.(P10)于是他拿出好几百万元帮助其他人进行农业科学研究。

equip v.使(某人)具备条件；装备；配备◆词语归纳equipment n.装备；设备equip sb.for/to do sth.使某人具备做某事的条件equip...with...用……装备……equip oneself with 使自己准备好做某事◆即学即练根据括号内的汉语提示完成句子（1）Your training will ___________ .（使你能够胜任将来的工作）（2）Please _________ a sharp pencil and a rubber for the exam.（为自己准备）（3）A good education_____________ .（能受用终生）答案：（1）equip you for your future job （2）equip yourself with （3）should equip you for life 7.Now Dr.Yuan has another dream: to export his rice so that it can be grown all around the globe.(P10)如今袁博士还有另外一个梦想：那就是看到他的稻谷长遍全球。

◆词语归纳export v./n.输出；出口；出口物exporter n.出口者 exportation n.输出；出口◆即学即练完成下列句子(1)原油已经取代咖啡成为我们的主要出口货物Oil has supplanted coffee _______________ .(2)这家公司国内市场非常大，不需要出口This company has a large home market and_________ .答案：(1)as our main export (2)doesn，t export 8.lost in thought 陷入沉思◆固定搭配be deep in thought 沉思be/get lost in the forest 在森林中迷路be sunk in deep thought 陷入沉思◆即学即练根据括号内的汉语提示完成句子(1)The old man __________ and did not hear us come in.（凝神沉思）(2)All the villagers went to search for the boy who _____________.(在森林中迷路)答案：(1)was lost in thought (2)was lost in the forest 写作步步高写作步步高如何写好状语从句如何写好状语从句 状语从句修饰主句中的动词、形容词和副词，由从属连词引导，可位于句首，也可位于主句后。

状语从句在句首时，往往有逗号使从句与主句隔开引导状语从句的连词分类（如下表）： 状语从句连词 时间when, whenever, as, while, before, after, till, until, as soon as, hardly...when, no sooner...than, scarcely...when, each time, every time, the first time, the last time, the moment, the minute, the second, the day, immediately 地点where, wherever, everywhere 条件if, unless, providing/provided that, supposing/suppose that, as long as, so long as, on condition that, in case, only if, if only原因because, as, since, now that, seeing that, considering that, in that, in view of the fact(鉴于)让步though, although, even if, even though, as, while, whatever, whoever, whenever, wherever, however, no matter wh~, for all that, granting, granted, whether...or..., in spite of the fact that比较as, than, the same as, not so...as, as...as 方式as if, as though目的that, in order that, so that, in case, for fear that, lest 结果so that, so...that, such...that, but that  在写好简单句的基础上，要写好含状语从句的复合句，掌握引导每种状语从句的连词是关键，因为状语从句内的结构与简单句相同，我们需要什么状语从句，只需在句前加上相应的连词即可。

当然我们还需分清复合句中哪是主句，哪是从句如：（1）当你再读这首诗后，你将更明白它的含义 （从句） （主句）When you read the poem a second time, you will understand it better.从句中，除了多了连词When外，you read the poem a second time与简单句结构相同（2）客人们每到一处，都受到热烈欢迎Wherever they went, the guests were warmly welcomed.The guests were warmly welcomed wherever they went.◆活学活用把下列每两个句子连接成含状语从句的复合句1.You will be late. You leave immediately.______________________________________________ 2.I was walking in the street. I saw an old friend of mine.______________________________________________ 3.I may fail a thousand times. I won，t give up.______________________________________________ 4.He is considered to be a good writer. His works are not widely read.______________________________________________ 5.We study very hard. We can work well in the future.______________________________________________答案：1.You will be late unless you leave immediately.2.I was walking in the street when I saw an old friend of mine.3.Even if I may fail a thousand times, I won，t give up.4.Although he is considered to be a good writer, his works are not widely read.5.We study hard so that/in order that we can work well in the future.6.You can go to work where your father worked when he was young.6.You can go to work in the place. Your father worked there when he was young.____________________________________________ 。