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　　Unit 2 DNA
　　Lesson 9: What’s a “Horkey”?
　　Teaching Content:
　　Mastery words and expressions: helpful, at the same time
　　Oral words and expressions: DNA, combine, juicy, mule, donkey
　　Teaching Aims:
　　1.       Know more about cloning.
　　2.       How to combine two different things.
　　Teaching Important Points:
　　1.       Talt the ability and inability.
　　2.       The use of coordinating conjunctions.
　　3.       Combine two different things.
　　Teaching Difficult Points:
　　Talt the ability and inability.
　　Teaching Preparation: pictures
　　Teaching Aids: flashcards, audiotape, pictures
　　Type of lesson: new lesson
　　Teaching Procedure:
　　Step1. Lead in the class by showing some pictures about combining to the students. They may be about different things, such as food, fruit, animals and other things.
　　Step2. Listen to the tape and answer the following questions:
　　1.       Can Danny combine a donut and a pizza?
　　2.       Who wants to combine a cow and a chick?
　　Let the students answer the questions with the help of the pictures. Finish the task in oral in class.
　　Step3. Read the text and fill in the blanks with the correct words.
　　1.       We can combine two different ______ or two different ______.
　　2.       Brian would combine ______ and ______.
　　Loogh the whole text quickly and answer the questions in class in oral.
　　Step4. Encourage the students find the new words in this lesson. Give more examples and let the students understand more about the words.
　　I would combine a donut and a pizza.
　　Then I could have breakfast and lunch together.
　　Then I would have little, juicy bananas.
　　Do you know what a mule is?
　　It has a horse as mother and a donkey as a father.
　　Step5. Read the text again and encourage them to find more questions about the text. One student stands up and asestion. The others who want to answer can stand up and answer it as quickly as he can. For example:
　　1.       What would you combine?
　　2.       What about combining a duck and a deer?
　　3.       Can we combine apples and bananas?
　　Step6. Come to “PROJECT”.
　　Finish the task in groups of three or four students.
　　Thint something that is combined by two different things. Each of the group writes his answer down and shows it to others. Then choose the most meaningful one to study.
　　What will your group combine? What if you combine the two things? What can it do for us? What’s its advantage?
　　Talt the questions above, then sum their ideas.
　　Give a report in front of the class. Demonstrate your ideas. Describe the thing that you combine in detail. Describe its advantages and disadvantages.
　　Step7.Homework
　　1.       Finish off the exercises in activity book.
　　2.       Go on the next reading in the student book.
　　Summary
　　In this lesson, we learn to combine two different things together. In order to get new living things, we must mall use of our imagination. What can the things that we combine are used for? It is important for us to discuss. During the discussion, we practice our spoken English.
　　Lesson 10: What is DNA?
　　Teaching Content: