1. Unit 2 How often do you exercise? Section B Section B

2. 重点词汇： junk, coffee, health, percent, online, together, although, through, mind, body, such, television, die, writer 重点短语： junk food, be good for, want sb. to do, such as go camping, fifteen percent of, go online 重点句型： My mother wants me to drink it. It’s good for my health. How many hours do you sleep every night? It’s healthy for the mind and the body. It’s good to relax by using the Internet or watching game shows. 语法：进一步学习一般现在时的特殊疑问句及回答

3. ① health(n.)/ healthy (adj.) look after one’s health, keep in good health keep/ stay healthy, healthy food/lifestyle ② percent 百分之 More than 40 percent of the students wear glasses. ③ although 虽然（不与 but 连用） Although he failed, he didn’t give up. = He failed, but he didn’t give up.

4. ④ through 穿过，通过 The sun shone through the clouds. He went in through the window. ⑤ such as 例如 We visited some cities such as New York, Chicago, and Boston.

5. ⑥ by doing 通过做 They keep healthy by taking exercise every day. He makes a living by doing something he loves. ⑦ It’s + adj. + for sb. to do sth. 对于某人来说做 某事 It’s important to eat a balanced diet. It’s difficult for some students to learn English.

6. Junk food

7. vegetables

8. Homework Write about your free time activities.