一、词组与句子翻译
A 词组
1 多久一次  2 几乎不 
3 垃圾食品  4 至于 
5 每天      6 每周一两次
7 网上冲浪  8 照顾
9 饮食习惯  10 保持健康
B句型
1 你多久锻炼一次？ 每天一次。
2 大多数学生每天做作业。
3 他们周末呆在家里吗？ 不，他们不在。
4 对你来说，你最好不要吃肉。
5 尽管你父亲身体不好，他仍然坚持运动来保持健康。
6 玩太多电脑游戏的结果是对你的眼睛有害处。
二、用适当形式填空。
1 My______(eat ) habits are pretty healthy.
2 Mr Green______(sleep) nine hours every night .
3 Good food______(help) you to study better.
4 Sometimes she______(read) a book in the evening.
5 She cleans her room three______(time) a week.
6 Can you tell me the______(different) between the two pictures?
7 We usually go to the movies______(two) a week.
8 My mother says it is good for my______(healthy) to drink milk every day.
9 Let him______(do) it.
10 I love junk food very much, but I try______(eat) only once a week .