Ⅰ. Read and write. 读一读，写一写。

Ⅱ. Read and fill in the blanks. 读一读，并填空。
1. Yesterday Tom (walk) to the park.
2. Last Sunday I (talk) to my sister.
3. He (play) cards yesterday.
4. We (go) to a library yesterday.
5. She (play) ping-pong last Monday.
6. My father (break) his leg this morning.
7. Last week I (buy) a little dog.
8. Peter (eat) a sandwich yesterday.
9. Yesterday they (see) Danny over there.
10. You (go) to the Palace Museum yesterday.
11. I (have) fun yesterday.
12. They (are) happy last Sunday.

Ⅰ. 1. did my homework 2. eat an egg 3. played cards 4. I am happy
Ⅱ. 1. walked 2. talked 3. played 4. went 5. played 6. broke 7. bought 8. ate 9. saw 10. went 11. had 12. were

本题主要考察一般现在时和一般过去时的对应变换，以及规则、不规则动词的过去式变形：
1. 第一部分Read and write：叶子左右的句子一一对应，左侧是描述经常性习惯性动作的一般现在时句子，右侧是描述过去发生动作的一般过去时句子，参照给出的示例"I go to the park on Sundays." → "I went to the park yesterday."的变换规则完成填空即可。
2. 第二部分Read and fill in the blanks：所有句子都给出了表示过去的时间标志（yesterday/last.../this morning），需要将括号内的动词变为对应的过去式形式，部分动词的过去式是不规则变形，需要特殊记忆。