三、跨学科 数学小组在选拔“智力担当”。请找规律，将正确的数字单词填入四线三格中。
1. 0 5 10
2. 8 10 14
3.
4. 16
5. 4 6 8

1. fifteen 2. twelve 3. eleven 4. twenty 5. ten

四、琪琪在玩“连词成句”的游戏。请根据标点提示把单词组成一句通顺的话。
1. a, yuan, ball, for, three, pay, I (.)

2. pens, have, how, do, many, you (?)

3. your, make, smile, mother (.)

4. are, her, the, dolls, on, shelf (.)

5. is, the, twenty, toy, boat, yuan (.)

6. I, gifts, make, her, often (.)

1. I pay three yuan for a ball. 2. How many pens do you have?
3. Make your mother smile. 4. Her dolls are on the shelf.
5. The toy boat is twenty yuan. 6. I often make her gifts.