在英语学习中，掌握第三人称单数动词的变化规则是十分重要的一步。所谓第三人称单数，通常指的是he（他）、she（她）或it（它）。当这些代词作为句子的主语时，与其搭配的动词需要进行相应的变化，即在动词后加上“-s”或“-es”。为了帮助大家更好地理解和运用这一知识点，我们特意准备了以下练习题。

练习一：填空题

请根据提示，在横线上填入正确的动词形式。

1. She ________ (like) playing basketball every afternoon.

2. He ________ (watch) TV after dinner.

3. It ________ (rain) heavily last night.

4. The cat ________ (sleep) on the sofa all day.

5. My sister ________ (go) shopping twice a week.

答案：

1. likes

2. watches

3. rained

4. sleeps

5. goes

练习二：改错题

找出并改正下列句子中的错误。

1. Tom usually play soccer with his friends.

- 改正：Tom usually plays soccer with his friends.

2. She don't like eating vegetables.

- 改正：She doesn’t like eating vegetables.

3. The book is interesting, and it reads well.

- 改正：The book is interesting, and it is read well.

4. Does he has a new bike?

- 改正：Does he have a new bike?

5. We all know that she always writes carefully.

- 改正：无错误。

练习三：选择题

从选项中选出正确答案。

1. Every morning, my father ________ (get) up early to exercise.

A. getsB. getC. getting

正确答案：A

2. The teacher says that she ________ (enjoy) teaching very much.

A. enjoysB. enjoyC. enjoyed

正确答案：A

3. Look! The dog ________ (run) around the yard happily.

A. runB. runsC. running

正确答案：B

4. ________ your friend ________ (study) English every day?

A. Do; studyB. Does; studyC. Is; studying

正确答案：B

5. If it ________ (snow), we will stay at home.

A. snowsB. snowC. snowed

正确答案：A

通过以上练习，相信你已经对第三人称单数动词的变化有了更深的理解。记住，这种变化虽然简单，但却是语法基础的重要组成部分。多加练习，熟能生巧！如果你还有任何疑问，欢迎随时提问哦～