牛津译林版高中英语必修5：Unit 3 Period Four课件

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1、Unit 3 Science and nature,基础自测,内容索引,要点探究,达标检测,课文预读,Period Four Project,基础自测,.重点单词 1. n.赞同，支持；恩惠，帮助；偏爱，偏袒 2. n.收入，收益 3. vt.使惊吓，使惊恐adj.受惊吓的，害怕的adj.令人害怕的 4. n.利润，收益vi.& vt.获益；对有用 5. n.准许，许可，批准v.允许，许可n.通行证；许可证,favour,income,frighten,frightened,frightening,profit,permission,permit,.重点短语 1. favour of支持，赞同

2、 2.point view观点 3. ones needs满足某人的需要 4.be limited 局限于 5.have an effect/effects 对产生影响/起作用,in,of,meet/satisfy,to,on,.重点句式 1.部分否定that is best for nature is good for people. 并非所有对自然来说是最好的就意味着对人类来说也是好的。 2.it作形式主语that are good for everyone，and everything. 找出对任何人、任何事物都有益的解决方案，这是人类的责任。 3.否定副词位于句首的倒装with gen

3、etically modified (GM) food. 转基因食品就是最好的例子。,Not everything,It is mankinds responsibility to find answers,Nowhere is this truer than,课文预读,.课文阅读理解 1.Our natural resources have been seriously affected because . A.people develop nature to meet their needs B.people endlessly overdevelop Earths resources C

4、.many nations are engaged in developing nature D.many poor nations must focus on meeting the everyday needs of their people,答案,1,2,3,2.If we focus only on environmental conservation，people may . A.rebel B.approve C.benefit D.suffer,答案,1,2,3,3.Which of the following is WRONG according to the passage?

5、 A.Many people believe that technology and mankind are destroying nature. B.We are moving towards an important point of understanding in our relationship with nature. C.Many poor countries are using up natural resources at a fast rate. D.Humans can only really win by developing nature.,答案,1,2,3,.课文阅

6、读填空,resources,attitudes,relationship,Man and nature,protecting,.课文阅读简答 A.阅读课文Man and nature回答问题 1.What have people done to nature? _ _ 2.If we continue in this way，what might happen? _ 3.What are developed nations concerned about now? _,They have harmed nature through agriculture，fishing，hunting and

7、 tourism.,The planet we live on might be destroyed.,Now they are concerned about saving nature.,4.What are poorer nations doing now and whats their purpose for doing so? _ _ B.阅读课文GM food：hope or danger？回答问题 5.What are peoples different attitudes towards the study of genetics? _ 6.Why do many countr

8、ies hesitate to permit the production of GM food? _,They are using up natural resources at a fast pace to meet the everyday needs of their people.,Many people are excited，while others are frightened.,Because they are not sure whether GM food is safe.,要点探究,Would anyone say that development should be

9、stopped in favour of nature? 难道我们为了保护自然就应该停止经济发展吗？,in favour of支持，赞同 in sb. s favour有利于某人，有助于某人 ask sb. a favourask a favour of sb. 向某人求助 do sb. a favourdo a favour for sb. 帮某人的忙,重点词汇,(1)The exchange rate is in our favour at the moment. 目前汇率对我们有利。 (2)Will you to carry the box？ 你能帮我拿那个盒子吗？,do me a fa

10、vour/do a favour for me,单项填空 (3)Although this product is environmental protection，few people show interest in it because of its high price.(2018常熟高二期中) A.in terms of B.in favour of C.on account of D.in response to,解析 句意为：尽管这个产品是有利于环保的，但是很少人对它感兴趣因为它的价格非常高。in terms of就而言；in favour of有利于；on account of由

11、于，因为；in response to对作出回应；根据句意，故选B项。,答案,解析,From the point of view of some people，we are only doing what humans have always done，using nature to meet our own needs. 根据有些人的观点，我们现在只是在做人类一直在做的事，利用自然来满足我们自己的需求。,point of view观点，看法 to the point恰当，中肯 off the point离题 be on the point of doing sth. 正要做某事 There

12、is no point (in) doing.做没有意义。,(1)Im afraid what youre saying now is off the point. 恐怕你现在所说的有些离题。 (2)I watching TV when the door bell rang. 我正要看电视这时门铃响了。,was on the point of,单项填空 (3)With many major economic problems to be addressed，there is no point the growth rate of this year now. (2017宝应安宜高级中学高二期中

13、) A.remained；evaluating B.remaining；to evaluate C.remaining；evaluating D.remained；to evaluate,解析 句意为：因为有许多主要的经济问题有待于处理，现在来评估今年的增长率是没有意义的。there is no point (in) doing sth. 做某事没有意义，排除B，D两项；再根据前面remain 是不及物动词，没有被动语态，非谓语动词只能用主动形式来表示被动。故选C项。,答案,解析,meet/satisfy ones needs满足某人的需要 meet/satisfy the needs of

14、sb. 满足某人的需要 in need of需要 in great need急需 make ends meet使收支相抵,(4)This will satisfy/meet the needs of our customers. 这将满足我们客户的需要。 (5)The factory is funds. 那家工厂急需资金。,in great need of,单项填空 (6)Many universities throughout the world provide scholarships for students financial aid.(2018南通高二检测) A.in favour

15、of B.in need of C.in face of D.in honour of,解析 句意为：世界各地的许多大学为需要财政援助的学生提供奖学金。此处指需要财政援助，in need of需要，故选B项。,答案,解析,While many people are excited about these new technologies，these same technologies frighten others. 当许多人为这些新技术而兴奋不已时，这些同样的技术也让其他人害怕。,(1)frighten vt.吓唬，使害怕 frighten sb. into doing sth. 恐吓某人做

16、某事 frighten off吓跑 (2)frightening adj.吓人的 (3)frightened adj.受惊吓的，感到害怕的 be frightened by被吓到 be frightened to death吓得要命；被吓坏,(1)He frightened the old man into giving him all the money. 他恐吓那位老人把所有的钱都给了他。 (2)The little child the fierce dog. 那个小孩被恶狗吓坏了。,was frightened by,单项填空 (3)When the children heard the

17、 story，they were half to death. A.scary；frightening B.frightening；scared C.scared；scary D.frightened；frightening,解析 句意为：当孩子们听到可怕的故事时吓得半死。scary，frightening都表示“吓人的，令人害怕的”；frightened，scared都表示“感到害怕的”，故选B。,答案,解析,(4)Seeing a stranger with a knife in his hand，the little girl stood under the tree， out of h

18、er mind.(2017南通中学高二期中) A.frightened B.be frightened C.to be frightened D.frightening,解析 句意为：看到手里拿着刀的陌生人，小女孩站在树下，吓得心慌意乱。这里the little girl与frighten之间为被动关系，故用过去分词frightened，故选A项。,答案,解析,Research has been limited to increasing production profits，rather than making sure that GM foods are safe. 目前的研究只局限于增加

19、生产利润，而不是确保转基因食品的安全。,(1)limit vt.限制；n.C限度，限制 limit.to.把限定在 be limited to局限于 There is a limit to.是有限度的。 (2)limited adj.有限的 (3)limitless adj.无限制的，无止境的 (4)limitation n.限制；局限,(1)The teacher limited his students to 500 words for their compositions. 老师把学生的作文限制在500字以内。 (2) the amount of pain we can bear. 我们

20、能忍受的疼痛是有限度的。,There is a limit to,单项填空 (3)Unfortunately，the research was limited increasing economic profits， protecting the environment. A.to；other than B.by；rather than C.to；rather than D.by；more than,解析 句意为：不幸的是，这项研究只局限于增加经济利益，而不是保护环境。be limited to局限于；rather than而不是，否定后者，故选C项。,答案,解析,(4)They have a

21、 22：00 .That is，they have to be in their dorm by 22：00 on school nights.(2017扬州中学高二期中) A.limit B.entry C.schedule D.block,解析 句意为：他们的时间限制是22：00；也就是说，他们在上学的晚上22：00 之前必须到宿舍。limit限制，符合题意，故选A项。,答案,解析,No one knows what effects the GM material might have on the food chain. 没有人知道转基因物质会给食物链带来什么影响。,have an ef

22、fect/effects on.对产生影响/起作用 come into/take effect生效；奏效 bring/put.into effect实行；实施；使生效/起作用 in effect事实上,(1)Our efforts are beginning to take effect. 我们的努力开始见成效了。 (2)In effect，we feel superior to them. 实际上，我们觉得比他们优秀。 (3)They think it isnt the right time to the nuclear program . 他们认为实施核计划还不到时候。,put/bring

23、,into effect,单项填空 (4)For years scientists have been worried about the of air pollution on the earths natural conditions. A.effect B.result C.account D.cause,解析 the effect on sth. 意为“对的影响”；result结果；account原因，描述；cause起因。,答案,解析,Since no one really knows whether GM food is safe，many countries have hesit

24、ated to give permission for the production of GM foods，as they would rather be cautious with this new technology. 由于没有人真正地知道转基因食品是否安全，许多国家在是否允许生产转基因食品问题上犹豫不决，因为他们宁愿对这项新技术持谨慎态度。,(1)permission n.许可，准许，批准 with/without ones permission在/未经某人的许可下 ask for ones permission请求某人的允许 (2)permit v.允许；许可；n.通行证；许可证

25、permit sb. to do.允许某人做 permit doing sth. 允许做某事,(1)You were wrong to take the book without permission. 你未得到许可就拿走这本书是不对的。 (2)The parents dont after 10 oclock in the evening. 父母不允许我们晚上十点钟以后待在外面。,permit us to stay out,单项填空 (3)It made our head teacher angry Wang Lin，without the from the school，was absent

26、 from class for a week. A.that；permission B.which；permit C.which；permission D.that；permit,解析 句意为：王琳未经学校允许旷课一周，这使我们的校长很生气。it是形式主语，真正的主语是后面的从句，而且引导词在从句中不作成分，故应用that引导。permission允许，许可；permit许可证。根据句意可知选A。,答案,解析,Not everything that is best for nature is good for people. 并非所有对自然来说是最好的就意味着对人类来说也是好的。,经典句式,(

27、1)句中not everything意为“并非全部”，表示部分否定。not与表示全部意义的代词或副词连用，表示部分否定。这样的词还有both，all，every，everyone，everybody，everywhere等。not可以放在这些词的前面，也可以否定谓语动词。 (2)英语中表示全部否定的词有neither，none，no one，nobody，nothing，nowhere等。,(1)Both of the students are not from the same factory. 这两个学生并非都来自同一家工厂。 (2)My brother has a nice car，bu

28、t I have . 我哥哥有一辆漂亮的车，但是我没有。,none,单项填空 (3)The exam was easy，wasnt it? Yes，but I dont think could pass it. A.somebody B.anybody C.nobody D.everybody,解析 由语境知，此处强调的是“并非人人都能通过”，考查部分否定。,答案,解析,(4)Of all the books on the desk， is of any use for our study. A.nothing B.no one C.neither D.none,解析 由all可知应排除C项；

29、 B项不能与of连用，也应排除； A项指没有什么东西，与句意不符。 故选D项表示全部否定。,答案,解析,Nowhere is this truer than with genetically modified (GM) food. 转基因食品就是最好的例子。,(1)nowhere是否定词，这里是倒装语序；nowhere与比较级连用，表达最高级意义。 (2)否定词no，none，neither，nor，nobody，nothing，never，半否定词hardly，seldom，scarcely，barely，little，few，或否定短语not until，by no means，not o

30、nly.but also.，in no way，no sooner等位于句首时，句子一般须部分倒装。,(1)Nowhere can you find such a beautiful girl. 在哪儿你也找不到这样漂亮的女孩。 (2)No word before he left. 他一句话没说就走了。,did he say,单项填空 (3)How was the televised debate last night? Super！Rarely so much media attention. A.a debate attracted B.did a debate attract C.a d

31、ebate did attract D.attracted a debate,解析 rarely是否定副词，放在句首时，句子应部分倒装，即将助动词、情态动词、be动词提前，其他语序不变。本题是过去发生的事，所以把助动词did提前。故正确答案为B。,答案,解析,达标检测,.单词拼写 1.Do not (插入) too many plugs in a connection panel，as it is not safe. 2.Buying those shares was a good move；we are making a good out of them. 3.He gave me to l

32、eave work early today. 4.The farmers might suffer some loss of (收入) but no one would starve. 5.From all points of view，war would be a . 6.We，as well as animals，cannot live without water and neither _ nor industry can go without it.,insert,profit,permission,income,catastrophe,agriculture,7.All her en

33、ergies her children. 8.You should tell your friend that you him. 9.Large quantities of natural resources in 100 years or so. 10.The students were reform. 11.The expenses should what you can really afford.,.选词填空,are focused on,are concerned about,will be used up,use up，focus on，be limited to，be conce

34、rned about，in favour of,in favour of,be limited to,.完成句子 12.事实上，不是所有的事情在一个国家能实行，在其他国家也能实行。 The truth is， that can be done in one country can be done in another. 13.这是最容易的事。 Nothing is than this. 14.我刚离开家天就下雨了。 No sooner my house than it began to rain. 15.他那样做使我很吃惊。that he did a thing like that. 16.你

35、没有必要做那么多工作。so much work.,not everything,easier,had I left,It was a great surprise to me,There is no point (in) doing,.单项填空 17.Most of them were my opinion while David was against it. A.in honour of B.in favour of C.in search of D.in memory of,解析 句意为：他们中大多数人支持我的看法，然而大卫却反对。in favour of支持，赞成，与against相对

36、。所以选B。,答案,解析,18.What a scene on the stage! Yeah，we girls were really . A.frightened；frightened B.frightening；frightened C.frightening；frightening D.frightened；frightening,解析 frightening令人害怕的，多修饰物；frightened感到害怕的，多形容人。所以选B。,答案,解析,19.Knowledge and learning are important if we want to be successful，but

37、 they may also our thinking. A.direct B.limit C.change D.improve,解析 句意为：我们要想成功，知识和学习是很重要的，但它们也可能会限制我们的思考。direct指导；limit限制；change改变；improve改进。由but可知，前后在意义上是转折关系，故选B项。,答案,解析,20. out for food.Some work in the tunnels as guards and workers. A.Not all the ants go B.All the ants not go C.Both the ants don

38、t go D.All the ants go,解析 从下句的内容可知，这里表示不完全否定的意义，故选A。B项中的not改为dont也正确。,答案,解析,21.Never in my wildest dreams these people are living in such poor conditions. A.I could imagine B.could I imagine C.I couldnt imagine D.couldnt I imagine,解析 表示否定意义的副词置于句首，句子应部分倒装，排除A、C； D不符合句意。,答案,解析,.微写作 写作素材(关于科学) 1.科学家已在

39、遗传学方面取得突破。 2.他们已获得准确的科学数据，这对人类是有益处的。 3.医师们希望在不久的将来人们能活得更久更快乐。 提示：加颜色部分用本单元词汇表达。,连句成篇(将以上句子连成一篇50词左右的英语短文),Scientists have made a breakthrough in genetics.They have gained accurate scientific data，which are beneficial to human beings.Physicians hope that in the near future people can live longer and happier.,