新课标人教版选修八Book8Unit2Using课件.pptx

1、 Unit 2 cloning using language The Return of the Dinosaurs?Answer the following questions:1.Have you ever seen the film Jurassic Park?Do people like this film?What animals do you see in the film?Are they real dinosaurs?Warming up (4ms)Do you think it is possible to clone dinosaurs?If not,why?If yes,

2、do you think thats good for human beings?Why?1.The writer of the text_ A.is excited by the possibility of cloning fierce and extinct animals B.believes that extinct animals can be brought back to life by cloningC.thinks it impossible or unsuitable to clone extinct animals like dinosaurs D.dreams of

3、dinosaurs returning to the earth2.The film Jurassic Park is popular because _.A.people are interested in the subject of cloning B.all the actors are dinosaurs C.it was directed by a scientist who clones dinosaurs D.it proves very interesting细枝末节细枝末节A3.Which of the following is true?_A.Mice were clon

4、ed in 1981.B.Dolly the sheep was the first cloned animal.C.The name of the cloned cow is“Bison”D.China was successful in cloning mammals.4.The reasons why a group of cloned animals all die of the same illness do NOT include_.A.they have the same arrangement of genes B.there isnt enough diversity in

5、the group for it to overcome illnesses C.the illness is a new one D.their arrangement of genes can not resist that new disease5.We can infer from the text that_ A.scientists are experimenting to clone dinosaursB.dinosaurs will never return to the earthC.cloned animals will only live in the zooD.the

6、DNA of dinosaurs can only survive 10 000 yearAnswer the following questions:1.Why shouldnt you clone an extinct animal if there isnt enough diversity in the group?2.Why is it wrong to clone an extinct animal if it would have to live in a zoo?1.Why shouldnt you clone an extinct animal if there isnt e

7、nough diversity in the group?Keys:There will not be enough genetic variation in the group to be able to resist new illnesses.2.Why is it wrong to clone an extinct animal if it would have to live in a zoo?It is not a good idea to clone an animal that would have to live in a zoo because it is not a su

8、itable habitat to develop and increase its numbers.The zoo is not a natural environment for a wild animal.Give some reasons why it is either impossible or unsuitable to clone extinct animalsReason 1:Reason 2:Reason 3:You need All efforts of cloning an animal will be if there is not enough in this gr

9、oup to It would be to clone any extinct animals if they live in a zoo.perfect DNAin vaindiversityovercome illnessesunfairwere to 1.The popularity of the film Jurassic Park,in which a scientist clones several different kinds of extinct dinosaurs,.长句分析：本句是一个复合句，in which 引导 ，修饰 ；how 引导 ，作 的宾语。在侏罗纪公园这部电

10、影中，有一位科学家克隆了好几种不同的绝种恐龙。类似这样的电影很受欢迎，证明了这一想法使人们感到既兴奋有恐惧。strike fear,etc into somebody/somebodys heart 使某人感到恐惧 The tsunami 这场海啸使得受灾国家的人民胆战心惊。proves how the idea struck a mixture of fear and excitement into peoples heart.非限制性定语从句非限制性定语从句films宾语从句宾语从句provestruck fear into the people of the tsunami-hit co

11、untries 2.people suggest that extinct animals like dinosaurs,can possibly be through cloning.人们时常设想从地球上消失的动物,例如恐龙,有可能通过克隆技术使它们复活。The car manufacturers changed the car models from time to time.汽车制造商不时地改变车的型号。He only comes to the company from time to time.他只是偶尔到公司来。【归纳总结】from time to time_ _，等于_,_。即时练

12、习将下列句子译成英语（1）他有时变得很没有道理。_.（2）他们有时吵架。_.From time to timebrought back to life不时，偶尔不时，偶尔occasionallynow and thenHe becomes quite unreasonable from time to time.They quarrel from time to time.3.if there is not enough diversity in the group to overcome illnesses.如果某个动物群体没有足够的多样性以战胜疾病，那么克隆这种动物的所有女里都将是无用的。

13、in vain 无效果的，无用的 The girl tried to open the locked door.女孩怎么也打不开锁着的门。为挽救那个患癌症的男孩的所有尝试都无济于事。4 Diversity in a group means having animals with their genes arranged in different ways.译：_.句式透析 with their genes arranged in different ways作_,in different ways 意思是_。All efforts of cloning an animal will be in

14、 vainin vainAll attempts to rescue the boy with cancer were in vain.群体的多样性是指这群动物的基因要以不同的方式排列群体的多样性是指这群动物的基因要以不同的方式排列作定语作定语以不同的方式以不同的方式 5.but others will survive and .其他的将存活下来并传递给其后代抵抗这种病的能力。【观察探究】They resisted the attack.他们抵抗那次攻击。She resisted being carried off.她拒绝被带走。The material resists water.这材料是防

15、水的。She could not resist the temptation.她无法抗拒那项诱惑。归纳拓展 resist作及物动词主要有两个义项：_；_；（与cannot，could not 连用）即时练习将下列句子译成英语(1)我无法抵挡巧克力。_.(2)他们决定留下来抵抗敌人。_.pass on the ability to resist that disease to the next generation 抵抗抵抗对抗对抗 I cannot resist chocolate.They decided to stay and resist the enemy.6 ,you can not

16、 clone animals that have been extinct longer than 10000 years.据我们现在所知,绝种一万年以上的动物不能克隆。base-on/upon-以为基础,依据 其结构为:base sth.on/upon、sth.is based on/upon You must your words facts.你说话要有事实根据。据我所知，他只上了三年学。Based on what we know now,base onBased on what I know,he attended school for no more than three years.

17、当堂训练：当堂训练：1 地震中的恐惧让这个小男孩刻骨铭心。2 我们的努力都付诸东流了，这让我们每个人都非常沮丧。（which-）3 据报道，这个官员抵制不住金钱的诱惑，因为受贿被判刑。(It is reported that-)4 据我所知，这儿的居民都保持着传统的生活方式，过着简朴的生活。5 医生和护士使这个重伤的女孩活过来了。The little boy struck the fear in the earthquake into his heart.All our efforts were in vain,which made us cast down.It is reported that the official couldnt resist the temptation of the money and was sentenced because of the guilty of bribery Based on what I know,the residents keep up the traditional lifestyle and lead a simple life.The doctor and the nurse brought the seriously injured girl to life.