Aims & Demands: Talk about science and technology
Describe things and how they work
Express agreement and disagreement
Focus: How to express disagreement and agreement
Methods: Communication and Discussion
Teaching steps
Step I Revision
Review some important phrases in unit 8.
Step II word study
1 read the new words and expression in unit 9
2 additional explanations
① dis- 前缀。表示“否定；相反；除去”等意思
eg: like ------ dislike agree-----disagree
able ------ disable appear----disappear
honest ----dishonest
② depend v 依赖； 依靠
eg: Good health depends on good food, exercise and enough sleep.
He is a man to be depended on. 他是一个值得信赖的人
The price depends on the quality. 价格依质量而定
It all depends. 这也难说；看情况而定
③ throughout prep 遍及，贯穿 adv到处，处处
※ 表示空间和时间的贯穿，且强调整体、全部。语气很强。
eg: News spread throughout the country.
He worked throughout the whole night.
She watched the film and cried throughout.
④ add v 增加
add to sth. 增加某物
eg: The bad weather added to our difficulties.
add sth. to sth. 把某物加入某物
eg: Please add some salt to the soup.
add up to 总计，达到
eg: The expense add up to 100dollars.
Step III Warming-up
1.Bring a toothpick and a plastic bag to the class. Draw a sock on the blackboard .ask the Ss to discuss the function of the 3 things.
2. Explain the “talk box” and ask the Ss to make some words.
3. Discuss the “True or False”.
Step IV Listening
1.Ask the Ss to close the books and listen to the tape paragraph by paragraph.
2. Ask the Ss to guess the things and discuss the functions after listening.
3. As with the listening material, do some exercises .Ask one students to describe one thing, and let the others to guess what it is.
Step V Speaking
1 divide the whole class into 4 groups .One group acts as Jane. One acts Jane’s father, and one acts Jane’s best friend. One acts as Jane’s mother.
2 Discuss with the group members, and then explain the reasons. Debate with other groups openly.
3 find the best debaters and the best groups.
Step VI Homework
1. Remember all the new words and expressions in unit 9.
2. Do the workbook P134 vocabulary 1---3
3. Preview the reading part.