2019-2020年高中英语必修9Module2Section1AtextstructureanalysisofDNA---thesecretoflife.doc

2019-2020年高中英语必修9Module2Section1AtextstructureanalysisofDNA-thesecretoflife1. Type of writing and a summary of the textType of writingThe passage is a style of mentMain idea of the passageThey have found the answer to one of the questions of biology. The discovery has influenced our life greatly. We have already experienced the benefits in many areas.Topic of Part 1James Watson and Francis Crick found the answer to how livings reproduce themselves.Topic of Part 2. (Story A)DNA testing can help in criminal investigations.Topic of Part 2 (Story B)Surgeons can insert some new genes into the baby before it is born to make it good-looking and intelligent.Topic of Part 2 (Story C)Surgeon can make an adult run faster by inserting an animal gene into his body.Topic of Part 2 (Story D)People can predict the inherited illness before baby is born.Topic of Part 3The genetic engineering will create new characteristics. Thus, we will face some new social problems. 2. A retold version to the textOn February 28,1953, two scientists found the secret of life. They find the answer to one of the most important questions of biology. That is how living things reproduce themselves. The answer is in a chemical in the human body called DNA. The two scientists succeeded in understanding the structure of DNA and how genes are able to reproduce themselves. The discovery of DNA has already had and will continue to have an enormous on our lives. We have already experienced the benefits in many areas. For example, DNA testing can help a lot in criminal investigations by paring the genes. If you want a good-looking and intelligent baby, surgeons can insert some new genes into it before the baby is born. An adult also can be made to run faster by inserting an animal gene through an operation. Humans will predict some inherited illness before the baby is born. These new genes will create new characteristics.If we start choosing the characteristics of our babies, we are altering nature in a very direct way. What might the consequences be? As a result, there are many important issues to discuss. Let us hope that we can find the right answers.