高中英语 Module 2 DNA the Secret of Life课件 外研选修9

1、2021/8/11 星期三1DNAthe Secret of Life2021/8/11 星期三22021/8/11 星期三3INTRODUCTIONVocabulary and speakingMatch the word and phrases in the box with their meanings.2021/8/11 星期三4take after to have similar physical features as someone else to be similar to an older person in your family in appearance or pers

2、onality a formal word meaning to have similar physical features as someone elselook likeresemble2021/8/11 星期三5Who 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.2021/8/11 星期三6Complete

3、the sentences about the body with the words in the box.cell diseases environment gender genetics identical twin2021/8/11 星期三7Something 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 _ are inherited but not a

4、ll of them.celltwinGeneticsdiseases2021/8/11 星期三85. 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.genderidenticalenvironment2021/8/11 星期三9Work in pairsDiscuss which characteristics you have inherited

5、 from your parents and which characteristics are formed by your environment. 2021/8/11 星期三10Use the words in the box.eyesight eye color gene health height intelligence weight personality2021/8/11 星期三11Reading & Vocabulary 12021/8/11 星期三12Fast readingRead parts 1 and 2 of the passage and answer the q

6、uestions.2021/8/11 星期三13Part 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 discovery of DNA is very important? The discovery of DNA has

7、 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. 2021/8/11 星期三14Story ADNA testing was made a standard procedure in criminal investigations.whats each

8、story about?2021/8/11 星期三15Story BUsing a technology called genetic engineering, a couple had a highly intelligent, good looking baby.2021/8/11 星期三16Story CHaving been inserted an animal gene, Mark won all his races.2021/8/11 星期三17Story DHaving been tested that the unborn child would have a terrible

9、, inherited illness, the couple decided to get rid of it.2021/8/11 星期三18Part 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 the near future. What will genetic engineering help scientists to do in the near futur

10、e?The new technology of genetic engineering means that scientists will soon be able to insert new genes into unborn babies, children or adults. 2021/8/11 星期三19What will happen if we start choosing the characteristics of our babies?We are altering nature in a very direct way. What might the consequen

11、ces be? It is possible that we will create two kinds of people, genetically engineered people and ordinary people. 2021/8/11 星期三20commit a murder couple hereditary perform an operation pregnant question reproduce victim 1. how do living things reproduce themselves? This means_.(a ) to have babies or

12、 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 )2021/8/11 星期三21commit a murder couple hereditary perform an operation pregnant question reproduce victim 3 Although the

13、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 some of his own cells on his victim. This means_. (a ) the person he attacked ( b) his own clothes( b )(

14、 a )( a )2021/8/11 星期三22commit a murder couple hereditary perform an operation pregnant question reproduce victim 6About six months ago, Mark secretly visited a surgeon, who performed an operation on him. This means_ (a ) Mark had an operation ( b) the surgeon said Mark should have an operation7.Dam

15、ian 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 have a baby. ( a )( a ) ( b )2021/8/11 星期三23Discussion: What is your opinion about the developments in genetics i

16、n general?EXAMPLE:I think theyre very exciting, but we need to be very careful. We dont know what consequences of these changes will be2021/8/11 星期三24Read through the words in the box, and pay attention to the stress.advance alter athlete benefit consequence development field good-looking insert str

17、ucture technology2021/8/11 星期三25Answer the questions about the words above. What is another word for A. athlete B. consequence C. alter D. field E. good -lookingrunnerresultchangeareahandsome /pretty2021/8/11 星期三262. Does a plant have a structure?Yes, it does.3. What are the benefits of learning Eng

18、lish?International communication.2021/8/11 星期三274. Can you think of a technology that is used in business?Computer technology.5. Which two words in the box can have more or less the same meaning?advance, development2021/8/11 星期三28Reading & Vocabulary 22021/8/11 星期三29Your Genes, Your Future2021/8/11

19、星期三30Read the passage and complete the sentences.Scientists will soon have the ability to _.However, scientists will not be able to _ _.“read” our genespredict our future with any realsuccess2021/8/11 星期三31Read the passage again and answer the questions.1. Which characteristics, physical or psycholo

20、gical, are inherited or mostly inherited?Physical.2021/8/11 星期三322. Does it seem that most psychological traits are inherited? 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.2021/8/11 星期三333. Why won

21、t scientists be able to tell us a lot about our future?Because of the unpredictable nature of environmental factors.2021/8/11 星期三344. What do “these new developments” refer to in the last paragraph?The ability to read our genes.2021/8/11 星期三355. What kind of problems will these new developments crea

22、te?They many mean that people will be prejudged on factors which would not actually occur, simply because of what their genes predict may happen.2021/8/11 星期三36Find these words in the passage and match the words with their plicated decade in detail envelope to a (great) extent insurance company phys

23、ical psychological2021/8/11 星期三37a period of ten yearsconnected with your body rather than your mindc paper cover that you put a letter in before you send it a particular characteristic in someones personalitymainlydecadephysicalenvelopetraitto a great extent2021/8/11 星期三386. connected with your min

24、d and feelings7. giving smaller facts 8. a company that will pay you money if you are ill, when you pay money every month10. using physical force to hurt people or damage propertypsychologicalin detailinsurance companyviolence2021/8/11 星期三39Explain the meaning of the words and phrases.2021/8/11 星期三4

25、01. As long as you have a good diet, scientists can predict your height 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.2021/8/11 星期三412. We now know that the need to wear glass

26、es has a genetic cause.The need to wear glasses is caused by 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 w

27、earing glasses.2021/8/11 星期三423. Our eating habits also 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

28、on.2021/8/11 星期三434. Do you enjoy dangerous sports 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.2021/8/11 星期三445. This is true

29、 of things such as how violent we are, and 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 characteri

30、stics will affect how well we get on with other people.2021/8/11 星期三456. 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 “re

31、ad” your mind to try to understand what 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.2021/8/11 星期三46Read DNA the Secret of Life on Page 16 again. Compare it with Your Genes, Your Future on page 22.2021/8/11 星期三47W

32、hich passage do you find more exciting?Do either of the passages worry you? Why?/ Why not?2021/8/11 星期三483. Which passage gives examples from real life? Would you prefer examples from real life in the other passage?2021/8/11 星期三494. Which passage gives more scientific information? Would you prefer t

33、o have more scientific information?5. Which passage do you think you will remember for longer?2021/8/11 星期三50Reading Practice2021/8/11 星期三51GM Food Good or Bad?2021/8/11 星期三52What is genetically modified food?How can you tell the difference between ordinary food and GM food?How much GM food is there

34、 in China?What are the advantages of GM food?What are the disadvantages?What should we do about GM food in China?2021/8/11 星期三53Is GM food good or bad?Not much is known about long-term effects of GM food on humans and the environment. It is “unpredictable”.2021/8/11 星期三54Answer the questions.1. Is t

35、ransgenic food the same as genetically modified food?Yes.2021/8/11 星期三552. What is the risk of producing a GM crop which kills pests?It will kill good insects as well.2021/8/11 星期三563. Why is the risk from carcinogens reduced in GM food?Because there are fewer traces of cancer inducing pesticides in

36、 the food.2021/8/11 星期三574. 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.2021/8/11 星期三585. How does the amount of GM food in the US compare with the number of people who think its dangerous?30 of mai

37、ze, 50 of Soya beans, 50 of potatoes and tomatoes are GM , and 27 of consumers are worried about the dangers of GM.2021/8/11 星期三596. How could GM food be stopped from entering China?By having the customs inspect all imported foods.2021/8/11 星期三607. How did the writer know that there werent any impor

38、ted GM foods in the markets?They did a big survey.2021/8/11 星期三618. What action is going to be taken about GM foods in China?Foods are going to be labeled.2021/8/11 星期三62Look at these pairs of sentences from the passage. Decide if the second sentence adds to or contrasts with the information in the

39、first sentences.2021/8/11 星期三63(a) GM food is already common in the United States.(b) China does not produce very much GM food (b) contrasts with (a)2021/8/11 星期三64(a) In Canada and the United States, 27 percent of consumers fear that GM food could be dangerous.(b) In Europe, a majority of consumers

40、 are in favor of banning them, and 79 percent of the UK public opposes GM food.(b) adds to (a)2021/8/11 星期三65(a) Chinese customs do not list transgenic products as an item requiring inspection.(b) Therefore GM products may enter the country from abroad.(b) adds to (a)2021/8/11 星期三66(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)2021/8/11 星期三67Answer th