必修五Unit 5 First aid grammar课时作业

Ⅰ. 用所给词的适当形式填空

1. His company earns billions (billion)of dollars each year.

2. People in government also need foresight to keep systems (system)running smoothly.

3. Beach stone tablet tea has a long history, dating (date)back 1, 300 years.

4. The floor is made up of the bricks carved (carve)with calligraphy.

5. There are many varieties (variety)of roses in his garden.

6. He majored (major)in finance at Claremont Men's College in California ten years ago.

7. The teacher regarded (regard )this behaviour as lack of attention in class.

8. The cartoon characters (character)are still popular with children.

9. We do not fight global (globe)warming because it is futile to do so.

10. They encourage others by appreciation (appreciate) and praise.

Ⅱ. 选择合适的短语填空

ups and downs, of great importance, based on,

a number of, date back to, refer to, varieties of,

by means of, regarded as, according to

1. It's of great importance to study English well.

2. The company has undergone many ups and downs.