高中英语-Module-2-DNA-the-Secret-of-Life课件-外研版选修9

1、DNAthe Secret of Life第一页，编辑于星期五：十一点 三十三分。第二页，编辑于星期五：十一点 三十三分。INTRODUCTIONVocabulary and speakingMatch the word and phrases in the box with their meanings.第三页，编辑于星期五：十一点 三十三分。take after to have similar physical features as someone else to be similar to an older person in your family in appearance or

2、personality a formal word meaning to have similar physical features as someone elselook likeresemble第四页，编辑于星期五：十一点 三十三分。Who do you look like, your mother or your father? Explain how you resemble him / her.Who do you take after in your personality?Work in pairs and discuss the questions.第五页，编辑于星期五：十一

3、点 三十三分。Complete the sentences about the body with the words in the box.cell diseases environment gender genetics identical twin第六页，编辑于星期五：十一点 三十三分。Something that is found in all living things is a _.A _ is one of two children born at the same time to the some mother. _ is the study of genes.Some _ a

4、re inherited but not all of them.celltwinGeneticsdiseases第七页，编辑于星期五：十一点 三十三分。5. The _ of a child is whether it is a boy or a girl.6. Twins who are _ have exactly the same genes.7. The _ as well as our genes makes us who we are.genderidenticalenvironment第八页，编辑于星期五：十一点 三十三分。Work in pairsDiscuss which

5、characteristics you have inherited from your parents and which characteristics are formed by your environment. 第九页，编辑于星期五：十一点 三十三分。Use the words in the box.eyesight eye color gene health height intelligence weight personality第十页，编辑于星期五：十一点 三十三分。Reading & Vocabulary 1第十一页，编辑于星期五：十一点 三十三分。Fast reading

6、Read parts 1 and 2 of the passage and answer the questions.第十二页，编辑于星期五：十一点 三十三分。Part 1 Why did Watson and Crick say, “We have discovered the secret of life? Because they had found the answer to one of the most important questions of biology how do living things reproduce themselves?Why did the disco

7、very of DNA is very important? The discovery of DNA has been called the most biological work of the last 100 years. It has already had and will continue to have an enormous influence on our lives. We have already experienced the benefits in many years. 第十三页，编辑于星期五：十一点 三十三分。Story ADNA testing was mad

8、e a standard procedure in criminal investigations.whats each story about?第十四页，编辑于星期五：十一点 三十三分。Story BUsing a technology called genetic engineering, a couple had a highly intelligent, good looking baby.第十五页，编辑于星期五：十一点 三十三分。Story CHaving been inserted an animal gene, Mark won all his races.第十六页，编辑于星期五

9、：十一点 三十三分。Story DHaving been tested that the unborn child would have a terrible, inherited illness, the couple decided to get rid of it.第十七页，编辑于星期五：十一点 三十三分。Part 3 Do you think stories AD in part 2 are true? Stories A and D have actually happened many times. Stories B and C will become possible in t

10、he near future. What will genetic engineering help scientists to do in the near future?The new technology of genetic engineering means that scientists will soon be able to insert new genes into unborn babies, children or adults. 第十八页，编辑于星期五：十一点 三十三分。What will happen if we start choosing the characte

11、ristics of our babies?We are altering nature in a very direct way. What might the consequences be? It is possible that we will create two kinds of people, genetically engineered people and ordinary people. 第十九页，编辑于星期五：十一点 三十三分。commit a murder couple hereditary perform an operation pregnant question

12、reproduce victim 1. how do living things reproduce themselves? This means_.(a ) to have babies or produce young plants ( b) to feed themselves. 2. our genes , which pass hereditary characteristics on to our children. This means_. ( a ) new (b) inherited from parents.( a )( b )第二十页，编辑于星期五：十一点 三十三分。co

13、mmit a murder couple hereditary perform an operation pregnant question reproduce victim 3 Although the police questioned him This means_.( a ) to wonder about someone(b) to ask someone questions 4But when he committed the murder This means_.( a) killed the man (b) saw the dead man. 5 . waters left s

14、ome of his own cells on his victim. This means_. (a ) the person he attacked ( b) his own clothes( b )( a )( a )第二十一页，编辑于星期五：十一点 三十三分。commit a murder couple hereditary perform an operation pregnant question reproduce victim 6About six months ago, Mark secretly visited a surgeon, who performed an ope

15、ration on him. This means_ (a ) Mark had an operation ( b) the surgeon said Mark should have an operation7.Damian Peterson and his wife Clara are another couple This means_.( a ) two people who are married ( b) example8. When Clara became pregnant This means_( a ) became worried (b) was going to hav

16、e a baby. ( a )( a ) ( b )第二十二页，编辑于星期五：十一点 三十三分。Discussion: What is your opinion about the developments in genetics in general?EXAMPLE:I think theyre very exciting, but we need to be very careful. We dont know what consequences of these changes will be第二十三页，编辑于星期五：十一点 三十三分。Read through the words in

17、the box, and pay attention to the stress.advance alter athlete benefit consequence development field good-looking insert structure technology第二十四页，编辑于星期五：十一点 三十三分。Answer the questions about the words above. What is another word for A. athlete B. consequence C. alter D. field E. good -lookingrunnerre

18、sultchangeareahandsome /pretty第二十五页，编辑于星期五：十一点 三十三分。2. Does a plant have a structure?Yes, it does.3. What are the benefits of learning English?International communication.第二十六页，编辑于星期五：十一点 三十三分。4. Can you think of a technology that is used in business?Computer technology.5. Which two words in the box

19、 can have more or less the same meaning?advance, development第二十七页，编辑于星期五：十一点 三十三分。Reading & Vocabulary 2第二十八页，编辑于星期五：十一点 三十三分。Your Genes, Your Future第二十九页，编辑于星期五：十一点 三十三分。Read the passage and complete the sentences.Scientists will soon have the ability to _.However, scientists will not be able to _

20、_.“read our genespredict our future with any realsuccess第三十页，编辑于星期五：十一点 三十三分。Read the passage again and answer the questions.1. Which characteristics, physical or psychological, are inherited or mostly inherited?Physical.第三十一页，编辑于星期五：十一点 三十三分。2. Does it seem that most psychological traits are inheri

21、ted? Give examples in your answer.It is a mixture of inherited and environmental factors that affect traits like violence or getting on well with people.第三十二页，编辑于星期五：十一点 三十三分。3. Why wont scientists be able to tell us a lot about our future?Because of the unpredictable nature of environmental factors

22、.第三十三页，编辑于星期五：十一点 三十三分。4. What do “these new developments refer to in the last paragraph?The ability to read our genes.第三十四页，编辑于星期五：十一点 三十三分。5. What kind of problems will these new developments create?They many mean that people will be prejudged on factors which would not actually occur, simply beca

23、use of what their genes predict may happen.第三十五页，编辑于星期五：十一点 三十三分。Find these words in the passage and match the words with their plicated decade in detail envelope to a (great) extent insurance company physical psychological第三十六页，编辑于星期五：十一点 三十三分。a period of ten yearsconnected with your body rather th

24、an your mindc paper cover that you put a letter in before you send it a particular characteristic in someones personalitymainlydecadephysicalenvelopetraitto a great extent第三十七页，编辑于星期五：十一点 三十三分。6. connected with your mind and feelings7. giving smaller facts 8. a company that will pay you money if you

25、 are ill, when you pay money every month10. using physical force to hurt people or damage propertypsychologicalin detailinsurance companyviolence第三十八页，编辑于星期五：十一点 三十三分。Explain the meaning of the words and phrases.第三十九页，编辑于星期五：十一点 三十三分。1. As long as you have a good diet, scientists can predict your he

26、ight by looking at your parents heights.If you have a good diet, it means that you are eating healthily. Healthy eating means the right balance between different types of food.第四十页，编辑于星期五：十一点 三十三分。2. We now know that the need to wear glasses has a genetic cause.The need to wear glasses is caused by

27、various eye problems. People who are short-sighted are only able to read things which are close to them, while people who are long-sighted cannot see things clearly when they are near. Both long- and short-sightedness can be corrected by wearing glasses.第四十一页，编辑于星期五：十一点 三十三分。3. Our eating habits als

28、o appear to be decided by our genes!Eating habits are the tendency to prefer certain kinds of food. Some people are said to have a “sweet booth because they like lots of cakes, sweets and chocolates. Other people naturally dont like meat and so on.第四十二页，编辑于星期五：十一点 三十三分。4. Do you enjoy dangerous spor

29、ts such as car racing?Car racing is the competition between high-performance cars, usually around a track. The Formula One circuit is perhaps the best known of these but there are also other kinds of race, such as rallies.第四十三页，编辑于星期五：十一点 三十三分。5. This is true of things such as how violent we are, an

30、d how well we get on with other people.How well we get on with other people is to do with our temperament. Some people like the company of others while other people prefer to be alone. Some people are happy to share, while others are selfish. These characteristics will affect how well we get on with

31、 other people.第四十四页，编辑于星期五：十一点 三十三分。6. the fact is that scientists will be able to “read our genes in the near future.Literally the verb “read means to look at marks on paper and understand what they mean. The word is also applied in other contexts, such as to “read your mind to try to understand wh

32、at someone is thinking. In this genetic context, it means to understand what a person is like by looking at the make-up of their genes.第四十五页，编辑于星期五：十一点 三十三分。Read DNA the Secret of Life on Page 16 again. Compare it with Your Genes, Your Future on page 22.第四十六页，编辑于星期五：十一点 三十三分。Which passage do you fin

33、d more exciting?Do either of the passages worry you? Why?/ Why not?第四十七页，编辑于星期五：十一点 三十三分。3. Which passage gives examples from real life? Would you prefer examples from real life in the other passage?第四十八页，编辑于星期五：十一点 三十三分。4. Which passage gives more scientific information? Would you prefer to have mo

34、re scientific information?5. Which passage do you think you will remember for longer?第四十九页，编辑于星期五：十一点 三十三分。Reading Practice第五十页，编辑于星期五：十一点 三十三分。GM Food Good or Bad?第五十一页，编辑于星期五：十一点 三十三分。What is genetically modified food?How can you tell the difference between ordinary food and GM food?How much GM fo

35、od is there in China?What are the advantages of GM food?What are the disadvantages?What should we do about GM food in China?第五十二页，编辑于星期五：十一点 三十三分。Is GM food good or bad?Not much is known about long-term effects of GM food on humans and the environment. It is “unpredictable.第五十三页，编辑于星期五：十一点 三十三分。Answ

36、er the questions.1. Is transgenic food the same as genetically modified food?Yes.第五十四页，编辑于星期五：十一点 三十三分。2. What is the risk of producing a GM crop which kills pests?It will kill good insects as well.第五十五页，编辑于星期五：十一点 三十三分。3. Why is the risk from carcinogens reduced in GM food?Because there are fewer t

37、races of cancer inducing pesticides in the food.第五十六页，编辑于星期五：十一点 三十三分。4. What is the risk to someone who is allergic to a particular gene?If that gene is transferred to another food, and the allergic person doesnt know.第五十七页，编辑于星期五：十一点 三十三分。5. How does the amount of GM food in the US compare with th

38、e number of people who think its dangerous?30 of maize, 50 of Soya beans, 50 of potatoes and tomatoes are GM , and 27 of consumers are worried about the dangers of GM.第五十八页，编辑于星期五：十一点 三十三分。6. How could GM food be stopped from entering China?By having the customs inspect all imported foods.第五十九页，编辑于星

39、期五：十一点 三十三分。7. How did the writer know that there werent any imported GM foods in the markets?They did a big survey.第六十页，编辑于星期五：十一点 三十三分。8. What action is going to be taken about GM foods in China?Foods are going to be labeled.第六十一页，编辑于星期五：十一点 三十三分。Look at these pairs of sentences from the passage.

40、Decide if the second sentence adds to or contrasts with the information in the first sentences.第六十二页，编辑于星期五：十一点 三十三分。(a) GM food is already common in the United States.(b) China does not produce very much GM food (b) contrasts with (a)第六十三页，编辑于星期五：十一点 三十三分。(a) In Canada and the United States, 27 per

41、cent of consumers fear that GM food could be dangerous.(b) In Europe, a majority of consumers are in favor of banning them, and 79 percent of the UK public opposes GM food.(b) adds to (a)第六十四页，编辑于星期五：十一点 三十三分。(a) Chinese customs do not list transgenic products as an item requiring inspection.(b) The

42、refore GM products may enter the country from abroad.(b) adds to (a)第六十五页，编辑于星期五：十一点 三十三分。(a) Neither young nor old people feared possible side effects from GM foods.(b) some parents of children said that they would now pay more attention to food labeling.(b) contrasts with (a)第六十六页，编辑于星期五：十一点 三十三分。Answer the questions第六十七