约1650字。

　　Unit7 To your good health教案
　　Period two
　　Step 1.Language points
　　In fact, the more you use your body, the better it works.
　　the＋比较级，the＋比较级，意思为“越……越……”。
　　[例]______ you praise him, ______ he works.
　　A. More; the harder B. The more; the harder
　　C. The more; harder D. More; harder
　　(答案为B)
　　Step 2. Meaning through practice
　　1.Divide the class into groups. Give each group a large piece of paper to draw the human body and write the words an the body parts. As the students are working, provide the following word on the board: heart, lungs, kidney, brain, stomach, liver, artery, veins, and bones.
　　2.Explain that over can be a preposition or a prefix that can be added to verds, adjectives or nouns. The prefix can mean: 1. excessive 2. outer, extra 3. like “over” in various senses.
　　Discuss the meaning of each prefix. Have the students write a sentence for each word.
　　Explain that under is also a proposition or prefix meaning: 1. below, beneath 2. lower in status 3. incomplete
　　Here are more example: underclothes, underdog, undergraduate, underclass.
　　4. Listen to the tape and do the Ex.
　　5. Let’s talk: Sentence Stress and Rhythm.
　　6. Review the following vocabulary before reading the dialogue: emphasize, de-emphasize,
　　Step 3. Writing
　　Write an invitation to a dinner party with a menu. Use the sample shown in the text as a model.
　　Use the mapping strategy to help the students organize their ideas. Illustrate on the board a circle with lines going out from the circle. The circle represents how to develop a health lifestyle. Each line will represent a component of a healthy lifestyle. In groups have the students identify the components. For example: diet, physical, mental, social/emotional.
　　Students will make a chart that has the components listed on each side of the columns. Under each component list the unhealthy and healthy habits of parents, classmates, etc.
　　Divide the class into groups. Students will share their list of unhealthy and healthy habits. As a group, the students make a “Do” and “Don’t” chart. Remind the students to use modals in this activity