Reading and vocabulary教案（名师）

Module5 Vocabulary and Reading Cloning and DNA 盐亭中学

何明艳

Analysis of the teaching material: The passage

Cloning and DNA mainly introduces the development of the genetic science and different opinions about the advanced genetic techniques. By learning such a passage, the students not only master words and useful expressions related to genetic science,but they also have a better understanding of genetic science and the use of the latest genetic techniques. Teaching aims and demands: 

Learn the words related to genetic science. 

Practice the skills of reading comprehension --- analyzing the structure of the passage,finding out the topic sentences and making a conclusion of main content. 

Learn the science of genetic engineering,arousing the students` interest in biochemistry and having a critical attitude to the latest science and techniques. Teaching keys and difficulties: 

Learn the words related to genetic science. 

Practice the skills of reading comprehension --- analyzing the structure of the passage,finding out the topic sentences and making a conclusion of main content. Teaching methods: Learning by doing

student-centered and task-based teaching

Teaching procedures: Step 1 Leading--in Rearrange the procedures of cloning Dolly.

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Step 2 Pre-reading Listing technical terms related to Cloning and DNA as many as possible.

Match the words with their definitions.

bacteria DNA enzyme gene clone stem cell cloning

1.a transparent twisting ladder made of the fundamental component of life ( ) 2. an organism which is genetically identical to another ( ) 3. chemicals formed in the body ( ) 4. takes the DNA from a single cell to create a whole new individual ( ) 5. a cell that can develop into every other type of cell ( ) 6. very small organisms that cause diseases ( ) Step 3 While-reading

1. Fast reading Scan the passage , divide it into three parts and find out the main content of each part. Part1（ ） Part2（ ）

Part3（ ）

2. Carefully reading PART 1：Read PART 1

carefully and find out the three stages of the development of the science of genetics and cloning . Stage 1: Stage 1: Stage 1: PART 2：Read PART 2

carefully and fill in the following form.

What to clone Reasons Problems

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PART 3：Read PART 3

and find out the use of DNA ,and think out two more . 1. 2. 3. Step 4 Post-reading Watching a video about gene editing and stem cell transplantation, and then discussing the following two questions in groups: 1.

What`s the prospect (前景）of the genetic test? 2. What do you think of the stem cell transplantation? Assignment Match the words with their meanings.

component gene resist transparent flexible compulsory handy saliva vice upbringing optional fundamental incredible identical controversial

1. thin enough to be seen through ( ) 2. a pattern of chemicals within the cell of a living thing that controls what it is like ( ) 3. the same or exactly alike ( ) 4. be likely to cause argument or disagreement ( ) 5. can be chosen freely ( ) 6. bad habit or personal quality ( ) 7. can change or be changed to adapt to new needs ( ) 8. put into force by orders or by the law ( ) 9. useful or simple to use ( ) 10. the natural watery liquid produced in the mouth ( )

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