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1、DNA,-the Secret of Life,INTRODUCTION,Vocabulary and speaking,Match the word and phrases in the box with their meanings.,take after,to have similar physical features as someone else to be similar to an older person in your family in appearance or personality a formal word meaning to have similar phys
2、ical features as someone else,look like,resemble,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.,Complete the sentences about the body with the words in the box.,cell diseases en
3、vironment gender genetics identical twin,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 _ are inherited but not all of them.,cell,twin,Genetics,diseases,5. The _ of a child is whether it is a boy
4、 or a girl. 6. Twins who are _ have exactly the same genes. 7. The _ as well as our genes makes us who we are.,gender,identical,environment,Work in pairs,Discuss which characteristics you have inherited from your parents and which characteristics are formed by your environment.,Use the words in the
5、box.,eyesight eye color gene health height intelligence weight personality,Reading & Vocabulary 1,Fast reading,Read parts 1 and 2 of the passage and answer the questions.,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 mos
6、t 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 enormous influence on our lives. We have a
7、lready experienced the benefits in many years.,Story A,DNA testing was made a standard procedure in criminal investigations.,whats each story about?,Story B,Using a technology called genetic engineering, a couple had a highly intelligent, good looking baby.,Story C,Having been inserted an animal gen
8、e, Mark won all his races.,Story D,Having been tested that the unborn child would have a terrible, inherited illness, the couple decided to get rid of it.,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 the
9、 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 characteristics of our babies?
10、,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 victim,1. how do living things r
11、eproduce 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 perform an operation pregna
12、nt 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. This means_. (a ) t
13、he 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 ( b) the surgeon s
14、aid Mark should have an operation 7. Damian Peterson and his wife Clara are another couple This means_. ( a ) two people who are married ( b) example 8. 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
15、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,Read through the words in the box, and pay attention to the stress.,advance alter athlete benefit consequence development field good-looking insert structure technology,Answer the questions about the words above.,What is another word for A. athlete B. consequence C. alter D. fiel
