Unit 7 Lesson 41 Were People Healthy Then易错题专练（4课时，含答案）.doc
Lesson 41 Were People Healthy Then 第1课时
一、 用方框中所给单词或短语的适当形式填空
weight, luck, side, in the sun, worry about
1．Don't read ____________. It's bad for your eyes.
2．You will put on ____________ if you eat too much meat.
3．We should use both ____________ of the paper.
4．Little Jack eats a lot of junk food...