We haven’t found life on other planets yet教案

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Unit 2 We haven‘t found life on other planets yet .

Teaching Aims and Demands：
1. Language knowledge：
New words： planet， solar， also， none， environment， air， grow， grown， part， galaxy， billion， universe， light， beyond， alone， entrance， cost， prefer， solar system
Key structures： Present perfect tense with just， already and yet. (重点)
2.To understand passages about space travel involving present perfect tense. (难点)
3. Attitudes： We should love science and our country.
Learning strategies： Communicative approach.
Teaching Aids： Multi-Media (Tape recorder， video， OHP， handout)
Teaching Procedures：
Part I： Revision
1. Help students to revise what is learnt in Period one of this module.
Show them some pictures about the new words in last period. Have the Ss. spell them chorally and individually.
2. Revise the p.p. forms of some irregular verbs

be was/were been have had had give gave given sell sold sold write wrote written go went gone get got got come came come fly flew flown see saw seen do did done take took taken send sent sent eat ate eaten find found found break broke broken
Part II ： Preparation
Task 1 ： Learn the new words.
　　Directions： Label the pictures with the words.
(1). Read through the words on the screen. Have the Ss. Repeat them after you.
(2).Read the words separately and have them remember them.
(3).Make some sentences with the words.
(4) Call back the answers from the whole class.
Task 2： Think about things you know about life on other planets.
Directions：
(1). Let the Ss look at the picture and the title of the unit. Read thesentence given. Elicit some more from the Ss， and note them on the board. Accept anything they give.
(2). Pair the Ss to talk about life on other planets.
Part III： Scanning and Skimming
1.Task： Read the passage and choose the best title.
Directions：
Step one： The teacher ask the Ss to read the titles.
Step two： Ss read the passage and choose the best title individually.
Step three： Call back the answers from the whole class， asking for reasons for their choice.
2. Task： Read the passage and put the words and expressions in order in activity 3.
Directions：
Step one： First make sure the Ss understand what they should do. Ss read the passage and do activity 3 on page 21 individually and check with a partner.
Step two： Call back the answers from the whole class， having individuals read out the answers.
3. Task： Check the true sentences in activity 4.
Directions：
Step one： Read through the sentences and make sure the Ss understand what they mean. Ss do activity 4 on page 21 individually and check with a partner.
Step two： Call back the answers from the whole class， having individuals correct the wrong sentences.
Part IV ： Dealing with expressions：

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We haven’t found life on other planets yet教案