课件52张PPT。Unit 3
Science and naturePeriod Four Project基础自测 自主学习 落实基础知识课文预读 回归教材 萃取文本主旨要点探究 探究重点 互动撞击思维基础自测 自主学习 落实基础知识1. n. 赞同,支持;恩惠;偏爱
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
vt. 准许,许可答案 favour
income
frighten
frightened
frightening
profit
permission
permit重点单词答案1. 支持,赞同
2. 观点
3. 满足某人的需要
4. 局限于
5. 对……产生影响/起作用in favour of
point of view
meet one’s needs
be limited to
have an effect/effects on重点短语1.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。
2.They have not yet seen the effects of the careless use of the environment like many wealthy nations have.
他们还没有像许多富裕国家那样,认识到随心所欲消耗自然资源的后果。
3.It is mankind’s responsibility to find answers 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。好句积累4.Nowhere is this truer than with genetically modified (GM) food.
转基因食品就是最好的例子。
5.One aim of GM research is to produce food which will make us healthier.
转基因研究的一个目的就是生产出能让我们更健康的食品。返回课文预读 回归教材 萃取文本主旨答案1.Our natural resources have been seriously affected because .
A.people develop nature to meet their needs
B.people endlessly overdevelop Earth’s resources
C.many nations are engaged in developing nature
D.many poor nations must focus on meeting the everyday needs of
their people课文阅读理解B123答案2.If we focus only on environmental conservation,people may .
A.rebel B.approve
C.benefit D.sufferD123答案3.Which of the following is WRONG according to the passage?
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 D123答案课文阅读填空Man and natureresourcesattitudesrelationshipprotecting答案A.根据课文Man and nature回答问题
1.What have people done to nature?
2.If we continue in this way,what might happen?
课文阅读简答They have harmed nature through agriculture,fishing,hunting and tourism.The planet we live on might be destroyed.答案3.What are developed nations concerned about now?
4.What are poorer nations doing now and what’s their purpose for doing so?
Now they are concerned about saving nature.They are using up natural resources at a fast pace to meet the everyday needs of their people.答案B.根据课文GM food:hope or danger?回答问题
5.What are people’s different attitudes towards the study of genetics?
6.Why do many countries hesitate to permit the production of GM food?
Many people are excited,while others are frightened.Because they are not sure whether GM food is safe.返回要点探究 探究重点 互动撞击思维 Would anyone say that development should be 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?1.归纳拓展
in favour of支持,赞同
in sb.’s favour有利于某人,有助于某人
do sb.a favour帮某人的忙语境助记
(1)We are in favour of equal pay for equal work.
我们支持同工同酬。
(2)The exchange rate is in our favour at the moment.
目前汇率对我们有利。
(3)Will you do me a favour to carry the box?
你能帮我拿那个盒子吗?题组训练
(1)句型转换
①I talked to my friend about it,and he is for giving up the plan.
→I talked to my friend about it,and he is giving up the plan.
②She was willing to change the rules to support Mary.
→She was willing to change the rules Mary.favourinof答案infavourof(2)My sister was against my suggestion while my brother was it.
A.in favour of B.in memory of
C.in honour of D.in search of
解析 in favour of赞成,符合句意。in memory of为了纪念;in honour of为了表达对……的敬意;in search of寻找。A解析答案 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。2.归纳拓展1
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 is no point in doing...做……没有意义。语境助记1
(1)From my point of view,the president hasn’t done enough to help poor people.
以我的观点来看,总统在帮助穷人方面做得不够。
(2)I’m afraid what you’re saying now is off the point.
恐怕你现在所说的有些离题。
(3)There is no point in arguing further.
继续争辩下去没有意义。题组训练1
(1)We were when your fax arrived.
我们正要给你打电话你的传真到了。
(2) ,science has brought great changes to our life.
我认为,科学给我们的生活带来了巨大变化。
(3)The speaker came straight away.
讲演者直述要点。on the point of telephoning you答案From my point of viewto the point归纳拓展2
meet/satisfy one’s needs满足某人的需要
satisfy the needs of sb.满足某人的需要
in need of需要
in great need急需
make ends meet使收支相抵语境助记2
(1)This will satisfy/meet the market’s needs.
这将满足市场的需要。
(2)The factory is in great need of funds.
那家工厂急需资金。题组训练2
(1)句型转换
This village school is in need of the teachers very much.
→The teachers in this village school.
(2)The Car Club can’t its all members.
这个汽车俱乐部不能满足所有成员的要求。
(3)I have to take two part--time jobs at the same time to .
为了收支平衡,我不得不同时做两份兼职。are答案ingreatneedmeet the needs ofmake ends meet 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。3.归纳拓展
(1)frighten vt.吓唬,使害怕
frighten sb.into doing sth.吓得某人做某事
frighten off吓跑
(2)frightening adj.吓人的
(3)frightened adj.被吓着的
be frightened by被……吓到
be frightened to death被吓死;被吓坏语境助记
(1)The children’s shouts frightened off the birds.
孩子们的喊声把鸟儿吓跑了。
(2)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。
(3)The little child was frightened by the fierce dog.
那个小孩被恶狗吓坏了。题组训练
(1)When he saw the bear in the forest he .
当他在森林里看见熊时,他被吓坏了。
(2)When the children heard the story,they were half to death.
A.scary;frightening B.frightening;scared
C.scared;scary D.frightened;frightening
解析 考查形容词词义辨析。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。B解析答案was frightened to death 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生产利润,而不是确保转基因食品的安全。4.归纳拓展
(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;局限语境助记
(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)Families are limited to three free tickets each.
每户限发3张免费票。
(3)There is a limit to the amount of pain we can bear.
我们能忍受的疼痛是有限度的。题组训练
(1)用limit的正确形式填空
①All railroads have weight and height .
②The amount of money we have is .
③Once you learn to read the market,you’ll find there are
opportunities to make money.limitationslimited答案limitless(2)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限制;rather than而不是,否定后者,故选C项。C解析答案 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。5.归纳拓展
have an effect/effects on...对……产生影响/起作用
take effect生效;奏效
come into effect生效
put...into effect实行;实施;使生效/起作用
in effect事实上语境助记
(1)It will have an indirect effect on them.
那对他们将有间接影响。
(2)Our efforts are beginning to take effect.
我们的努力开始见成效了。
(3)They think it isn’t the right time to put the nuclear program into effect.
他们认为实施核计划还不到时候。题组训练
(1)Alcoholic drink can your body.
含酒精的饮料会对你的身体有坏的影响。
(2)The new law will at the start of October.
新的法令将在十月份开始生效。
(3)If you think over the two methods,you’ll find they are
identical.
如果你仔细考虑这两个方法,你会发现它们实际上是一样的。解析答案have a bad effect oncome into effectin effect(4)For years scientists have been worried about the of air pollution on the earth’s 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。解析答案A Since no one really knows whether GM food is safe,many countries have hesitated to give permission for the production of GM foods,as they would rather be cautious with this new technology.
由于没有人确切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。6.归纳拓展
(1)permission n.许可,准许,批准
with/without one’s permission在/未经某人的许可下
ask for one’s permission请求某人的允许
(2)permit v.允许;许可;n.通行证;许可证
permit sb.to do...允许某人做……
permit doing sth.允许做某事语境助记
(1)You were wrong to take the book without permission.
你未得到许可就拿走这本书是不应该的。
(2)The parents don’t permit us to stay out after 10 o’clock in the evening.
父母不允许我们晚上十点钟以后呆在外面。题组训练
(1)句型转换
If weather permits,I will come tomorrow.
→ ,I will come tomorrow.
(2)He used the car .
他未经许可擅自用了这辆小汽车。
(3)What should I say if I want to informally?
如果我想非正式地请求许可,我该说什么?
(4)The rules of the club don’t .
俱乐部规则规定不许吸烟。Weather permitting答案without permissionask for permissionpermit smoking 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。7.归纳拓展
(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。这样的词有both,all,every,everyone,everybody,everywhere等。not可以放在这些词的前面,也可以否定动词。
(2)英语中表示全部否定的词有neither,none,no one,nobody,nothing,nowhere等。语境助记
(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,but I have none.
我哥哥有一辆漂亮的车,但是我没有。题组训练
(1)句型转换
All of them are not right.
→ are right.
(2)—The exam was easy,wasn’t it?
—Yes,but I don’t 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。D解析答案Notallofthem(3)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;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。D解析答案(4) 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’t go
D.All the ants go
解析 从下句的内容看,这里表示不完全否定的意义,故选A。B项中的not改为don’t也正确。A解析答案 Nowhere is this truer than with genetically modified(GM)food.
转基因食品就是最好的例子。8.归纳拓展
(1)nowhere是否定词,这里是倒装语序;nowhere与比较级连用,表达了最高级意思。
(2)否定词no,none,neither,nor,nobody,nothing,never,或半否定词hardly,seldom,scarcely,barely,little,few,否定短语not until,by no means,not only...but also...,in no way,no sooner等位于句首时,一般须部分倒装。语境助记
(1)Nowhere can you find such a beautiful girl.
在哪儿也找不到这样漂亮的女孩。
(2)No word did he say before he left.
他一句话没说就走了。题组训练
(1)Nowhere in the world such a beautiful voice.
你在世上任何地方也听不到如此动听的嗓音。
(2)A car was burning on the highway near Birmingham.In no time
to the spot.
A.the police had rushed B.had the police rushed
C.the police rushed D.did the police rush
解析 in no time立刻,马上,放句首时,句子不需要倒装,因为它不是否定词,可排除B、D;描述的是过去发生的事情,故选C。C解析答案返回can you hear