北师大版高中英语选修721.2Human Biology教案1

Unit 21 Human Biology

Lesson 2 Brain Power

Teaching Aims:

1. To practise using listening strategies for completing a text 2. To practise giving and asking for advice. 3. To practise using phrasal verbs

4. To practise using the vocabulary of science 5. To practise using the vocabulary of parts of the body Teaching difficulties:

1. To practise giving and asking for advice. 2. To practise using phrasal verbs Resources used: computer and cassette Teaching procedures: ⅠWarm up

T: first let’s read the words about brain. Now read together. S:

T: Every day we use our brain. Especially our students all hope to own clever brain. However, how much do you know about your brain? How does it work? ⅡListening

Before you listen, read the text, and predict what kind of information you need, Do the exercise 2

Listen to a science lesson, Use the strategies to complete the gaps in this summary. Listen to the tape again do the following the exercise. 1. The brain ______. A. looks like a potato. B. weigh 20﹪ of the body. C. control all our movements.

2. The different areas of the brain _____.

探索尚未知道的东西

A. are responsible for different function. B. have no connection. C. haven’t been mapped.

3. It is ____ that listen and see what’s happening around us. A. ears and eyes. B. brain C. nervous system. Answers : C A B

Ⅲ Listening and speaking Do the exercise 3

Listen to the lesson again and answer these questions. 1. How do you think the teacher feels about his subject?

2. What example does he use to explain the way the brain controls different parts of the body?

3. What does he compare to a film studio?

Answers: 1.enthusiastic 2. computer 3. The areas of the brain related to controlling sight and hearing. Ⅳ Listening

Listen to the cassette and answer the questions 1. The dialogue is between_______. A. host and listener. B. Teacher and student. C. doctor and patient. 2. Caller one _____.

A. is learning French and German. B. pay attention to getting things organized. C. Always makes a list of things that will be bought. 3. Caller two thinks ______.

A. drinking coffee can keep the brain working well. B. It is good for the brain to take a walk.

C. you should go for library to study for hours for the exam.

探索尚未知道的东西

4. Caller three thinks______.

A. you should think about the exam all the time. B. If you do something you should give yourself reward. C. You must watch a film or listen to some music before exam. Answers: A B B B

Listen to a student phone-in program about revising for exams and complete the table. Do the exercise 4 Ⅴ Speaking

Which piece of advice do you think is the most useful? Why? Ⅵlistening Do the exercise 5.

Ⅶvocabulary : phrasal verbs Do the exercise 7 Ⅷ Speaking Do the exercise 8.

Work in pairs. Discuss these questions.