3、掌握系动词be, look, feel, smell, get, become, turn, keep等的基本用法；

2、掌握动词六种时态的基本结构，主要用法及区别(一般现在时、一般过去时、一般将来时、过去进行时、现在进行时和现在完成时)

1、掌握动词的现在时第三人称单数、过去式、过去分词和现在分词四种形式的构成规则；

10. Both of his feet were hurt in the accident. _______ a doctor, please.

[练习答案]

9. If you’ve lost this book, you have to _______ it.

8. Computers are useful. They can ________ sending E-mail.

7. Don’t watch TV. It’s too late. Please _______ and go to bed right now.

6. Don’t lose heart and ________ trying.

5. My uncle phoned the booking office of the airline, and he was told there _______ any flights to Singapore in the following three days because of the bad weather.

4. This time yesterday I ________ the foreigners around the ancient church.