高中英語 module2 DNA the secret of lifereading and vocabulary課件 外研版選修9

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1、外研版高中三年級外研版高中三年級(第第9冊冊)Module 2Reading and vocabularyOn February 28, 1953, two scientists named James Watson and Francis Crick discovered the secret of life James Watson in Britain and Francis Crick in America Part 1 Why did Watson and Crick say, “We have discovered the secret of life?” Because they

2、 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 been called the most biological work of the last 100 years. It has already had and will continue to have an enor

3、mous influence on our lives. We have already experienced the benefits in many years. Part 2 Story A How was John Water judged guilty?He left some of his own cells on his victim. Scientists compared the DNA from these cells with the DNA from these cells with the DNA of people they had questioned. Sto

4、ry B How did Mike and Julia have a good Looking,very intelligent child ? Julia had a small but very expensive operation, using a technology called genetic engineering. Story C How did Mark Sawyer become a world championagain? He let the surgeon insert an animal gene into Mark that would make him run

5、 faster. Story D What happened to the couple ?Their child will be born with a terrible, inherited illness. What did they decide to do?The couple decided to get rid of the unborn baby. Part 3 Do you think stories AD in part 2 are true? Stories A and D have actually happened many times. Stories B and

6、C will become possible in the 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. What will happen if we start choosing the ch

7、aracteristics 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. commit a murder couple hereditary perform an operation pregnant question reproduce victi

8、m 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 )commit a murder couple hereditary perf

9、orm an operation pregnant question reproduce victim 3 Although the police questioned him This means_.( a ) to wonder about someone(b) to ask someone questions 4 But 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.

10、 This means_. (a ) the person he attacked ( b) his own clothes( b )( a )( a )commit a murder couple hereditary perform an operation pregnant question reproduce victim 6 About six months ago, Mark secretly visited a surgeon, who performed an operation on him. This means_ (a ) Mark had an operation (

11、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 have a baby. ( a )( a ) ( b )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 beTHANKYOU

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