人教版-高中英语必修四-Unit-2--Working-the-land-知识点串讲讲义

1、Book4 Unit 2Worki ng the landStep3.Researching cooperatively& answering questions（合作探究, 解决问题）Lear n the usages of the follow ing Ian guage points and an swer some questi ons in groups.1. At that time, hun ger was a disturb ing problem in many parts of the coun tryside.（P10）当时饥荒是许多农村地区面临的严重问题。【词语

2、拓展】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hun ger for/after sth.渴望go hungry 挨饿【小试身手】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 tonews when the family ， s letters don，t arrive.（渴望）（3） Many people in Africa had to（ 挨饿）_ and some eve

3、n_（死于饥饿becauseof the lack of grain.2. Dr.Yua n searched for a way to in crease rice harvests without expa nding the area of fields.（PIO）袁博士在不增加土地面积的基础上寻求达到增收的途径。【词语拓展】 search for ； in search of； look forsearch 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 sear

4、ch of/look ing for/search ing for clues of the crimi nals.=The dogs searched the forest for clues of the crim in als.=The dogs were in the forest to look for clues of the crimi nals.【小试身手】选用上述短语填空。（1）_ The poor professor felt everywhereon the floor_ his glasses.（2）_ The police_ the thiefthe lost wal

5、let.（3）_What are you？ You， ve been on net for ages.3. Tha nks to his research, the UN is trying to rid the world of hun ger.（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.4. You m

6、ight guess that Dr Y uan, 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】将下列句子译成英语。(1)_

7、考试结果让我们大家都满意。 _他圆满的解释消除了我的顾虑。 _5n deed,he believes that a pers on with too much money has more, rather tha n fewer troubles.(PIO)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 tha n 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 tha n do sth.else.宁愿干某事，而不愿干某事would rather that s

8、b.did/had done sth.宁愿某人干 /干过某事prefer to do sth.rather tha n 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 countrysidein the city.(2) I_ you were here now.(3)_ He_ staying homeclimbing the mountain with hisparents.(4) It is you_ he that is to

9、blame.6. He therefore gives millio ns of yua n 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】equipme ntn.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 on eself 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.(

10、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)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exportatio nn.输出；出口【即学即练】

11、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 suppla nted coffee_(2) 这家公司国内市场非常大，不需要出口。This compa ny has a large home market and_.Step4.Summi ng &chew ing,summariz ing kno wledge(总结反刍 ，知识梳理)【近义词辨析】Discuss the usages of the follow ing similar words and finish the exercises ingroups:1. expand, extend , s

12、pread 禾口 stretch【课本原句】 Dr.Yua n searched for a way to in crease rice harvests without expanding the area of thefields.(PIO)expand展开，扩大”与extend, spread 禾口 stretch 是同义词。【观察例句】A child s vocabulary expands through reading.孩子的词汇量通过阅读得到扩大。Why not try to expand your story into a novel?为什么不把你的故事扩展成小说呢？As ch

13、ildre n grow older they expand their in terestsa nd become more con fide nt.随着儿童的成长，他们的兴趣会变广，人也会变得更自信。He expan ded on his new theory.他详细地说明了自己的新理论。There are plans to extend the no-smoking area.现已有扩大无烟区的计戈 V。The show has been extended for another six weeks.展览会又延长了六周。The valley spread out ben eath us.

14、山谷在我们的下方延伸。The bird spread its wings.鸟展开它的翅膀。The sweater has stretched 这件毛衣给撑得变形了。Is there any way of stretching the clothes?有什么办法能把这件衣服拉长吗？【归纳总结】expand “展开，扩大”，不仅指尺寸的增加，还可指范围和体积的扩大。(2)extend “伸出，延伸”，指空间范围的扩大，以及长度、宽度的朝外延伸，也可指时间的 延长。(3)spread 伸开，传播”，一般指向四面八方扩大传播的范围，如传播(疾病)，散布(信息)等。(4)stretch “伸展，拉长”，

15、一般指由曲变直、由短变长的伸展，不是加长。【即学即用】请用 expand , extend , spread 和 stretch 分别完成下列各句：1.猫在火炉前伸开四肢。The catout in front of the fire.2. 炎热的天气一直持续到十月份。The hot weather_ to October.3. 随着年龄的增长，孩子们的兴趣会变广泛，人也会变得更自信。As childre n grow older they_their in terests and become more con fide nt.4. 火势不久就蔓延到邻近的建筑。The fire soon_t

16、o the nearby buildi ngs.5._ 铁加热会膨胀。Iron willwhe n heated.2. thanks to, due to, owing to禾口 because of3. lead to, result in 禾口 result from(各组近义词组的【归纳总结】与检测题参见由王军龙主编，陕西师大出版社出版的新课程高中英语词汇导学练P99-100)【长句辨析】1.if so 如果这样，so 用在 if 之后，代替前面的分句或句子，构成缩略条件句，语意可由上下文语境得知；其否定缩略形式为if not ，表示“如果不是这样”。Will you have a fr

17、ee evening tonight?_, let shave a dinner together.A. If notB. Why n otC. If so D. What if2. What do you think would happen if tomorrow there was suddenly no rice to eat?特殊疑问词+主句的疑问句序+从句的陈述句序。常用于该句型的主句的谓语动词有：thi nk,believe, suppose, imagine, expect 等。-1 have n heard Henry for a long time.What did you

18、 suppose_ to him?A. was happe ning B. to happe n C. has happe ned D. had happe ned3. would rather 宁愿，宁可would rather dothan do宁愿做 .不愿做 .would dorather than宁愿做 .不愿做 .would rather (that) sb did sth/ had done sth 宁愿某人 .做(1)-Shall we go skating or stay at home?-Which_ do?A. would you rather B. do you rat

19、her C. will you rather D. should you rather(2)_ I would rather youwith us yesterday, but you left.A. had stayed B. stay C. stayed D. have stayed4. rather than 而不是，宁愿而不常用来连接连个并列成分，表示在两者之间进行选择。prefer to do rather than do 宁可 .而不.(1)He would rather_ his life than_damage done to state property.A. lose; t

20、o see B. to lose; see C. to lose; to see D. lose; see(2) Rather than _his bicycle to work, he always prefers _ there.A. ride; walkB. riding; walk C. ride; to walk D. to ride; walking(3) The kid, rather than his parents,_ said to have had an accident while travelling.A. is B. are C. will be D. would

21、be5. 英语中表达“倍数”的方式：( 1 )倍数 +比较级 +than( 2)倍数 +as +原级 +as倍数 +the+ 名词(size, length, width, height, amount 等)+of(4) 倍数 +what=clause(5) 主语 + 谓语 +by + 倍数 Compared with that of last year, our coal output has in creased by threetimes.( 1 ) Americans eat _ vegetables per person today as they did in 1910.A. mo

22、re than twice B. as twice as manyC. twice as many as D. more than twice as many(2) After the new technique was introduced, the factory produced _ tractors in 1988 as the yearbefore.A. as twice many B. as many twice C. twice as many D. twice many as(3) I want to buy a rope which is _ this one.A. twic

23、e as longer as B. as twice long as C. twice the length of D. as twice asStep5.Testing in class & improving skills(随堂检测，落实考点)Task5.Choose the best one from A,B,C or D for the following each exercise:1 .(1)What led you _ that Bob was the thief?A. to think B. thinking C. in thinking D. to thinking(

24、2) Students should always remember that hard work is the basic wasy which_success.A. leads B. leading C. leads to D. lead to(3) The serious mistake in the experiment led to _ .A. the student having punished B. punish the studentC. the student being punished D. the student to be punished【解析】 lead vt

25、引导，领导，影响，劝诱，使过生活等； vi 通向，导致 ； n 领先地位lead to 通向，导致 ；lead sb to do sth 诱使某人做 ；lead sb in doing sth 带领某人做 ； leadthe way 带路 ；lead a life 过 .的生活 ；in/have the lead 领先 ；take the lead in 在 .方面领先。2. (1)He couldn t_ study with so much noise outside.A.focus his attention to B. focus his attention onC. focus hi

26、s attention with D. pay attention on(2)The nuclear problem in Iran has now become_ of worldwide media attention.A. the focus B. the base C. the middle D. the midst【解析】 focus n 聚集，聚焦，焦点，焦距，活动中心 ； vi vt 能够看清楚，使某物集中 于.；be in/outof foucs 焦点对准(没对准)；go out of focus 模糊，不清楚，不在焦点上 ； come into focus 清晰，明确，在焦点

27、上 ； bring sth into focus 对好焦距，使某物变得 清楚。3 . (1)The heavy rain_for several days and all the roads were flooded.A. went B. kept on C. fell down D. kept up(2) We kept on _ that they would have a chance to visit China some day.A. sending our hope B. to send our hope C. send our hope D. our hope(3) Someth

28、ing must be done to keep_ .A. the boy to make noise B. the boy making noiseC. the noise from making by the boy D. the boy from making noise(4) If city noises _from increasing , people _shout to be heard even at dinner table 20years from now.A. are not kept; will have to B. are not kept; have toC. do

29、 not keep; will have to D. do not keep; have to【解析】keepfree from/of使.免受.；keep in touch with 与.保持联系；keep sth/sbout of sth 不然某物 /某人入内， 使某物 /某人留在外面； keep out 挡住，使进不去； keep back阻挡；keep an eye on sth 注意，看守，照看，瞧着点；keepi n mi nd 牢记，放在心上；keepoff 使避开，使不要踩； keep sb from doing sth 阻止某人做某事； keep sb doing sth 使某

30、 人不停地做某事； keep on doing sth 继续做某事；keep onesword 遵守诺言，履行某人义务或保证；keep silence 保持安静， 沉默不出声；keep a secret 保守秘密，守口如瓶；keep ones head保持镇静； keep ones mind on 把注意力集中在 .上； keep ones temper 不生气， 按 不住性子；keep a firm(tight) hold(grip) on 牢牢控制 ； keep up with 赶上； keep up 保持，持 续。4 . (1)The text is too difficult . Pl

31、ease _ on it.A. turn B. comment C. put D. try(2)I think hellsurely give _you composition if you ask him to.A. comment on B. comments about C. comments on 给 .作注释 D. comment up on 【解析】comment n 评论， 批评， 评语 vi 评论， 发表意见 vt 发表意见， 评论 comments on 给 .作注释。5. The basin _water soon. You cantpour more in.A. is f

32、ull with B. fills with C. is filled of D. is filled with【解析】full adj be full of充满. (强调状态)；be filled with用.装满(强调动作)。6. (1)The changes in the city will cost quite a lot, _ they ll save us money in the long run.A. because B. since C. for D. but(2) It must have rained last night,_the ground is wet now.A. for B. as C.since D. because(3) _ industry to develop so rapidly, more and more waste will be produced.A. For B. With C. As D. Because of【解析】辨析： for because as since 和 now that for 为并列连词，是对前述动作的进 一步补充说明或表