四、阅读短文,在文中空白处填入1个适当的单词,或用括号内所给单词的正确形式填空。(2025·江苏徐州·调研)
There are different outdoor activities for different 1 (season). In spring, we can fly kites. In summer, we can go swimming or sailing. In autumn, it is a good idea to hike or camp. In winter, we can go to ski or skate. They bring us great fun. They make us 2 (keep) strong and fit too. So it is important for people 3 (take) part in some outdoor activities at the right time.
There are many group activities like football and basketball. The members work together for 4 same goal. So group activities need team spirit. It is 5 (real) useful for a person to have it. It is good 6 us in life and work.
The old like walking and 7 (jog). These activities don't need much strength. Young people like 8 (excite) activities, like diving, skiing and horse riding. Children like fun activities like flying kites.
Some outdoor activities are 9 (danger), like climbing rocks, 10 we must be careful when we take part in them.
1. 2. 3. 4. 5.
6. 7. 8. 9. 10.

五、阅读理解。
People always say: “No two snowflakes(雪花) are the same.” They have many shapes and fall in different ways. By watching how they “dance”, we can tell what the weather will be like.
When they fall in a line, they fall slowly. When they fall in a zigzag(之字形), they shake a bit back and front as they fall. Snowflakes falling in these two ways may mix rain or bring light snow. If they spin at a high speed or they hit each other when they spin and zigzag, these may bring a lot of snow.
It's hard to see snowflakes dancing with the naked eye(裸眼). Scientists can use high-speed cameras to watch them. Weathermen(气象员) can use radars(雷达) to study these dances to learn about the weather.
()1. What does the underlined word “dance” mean according to the passage?
A. Snowflakes fall in different ways.
B. Snowflakes fall slowly.
C. Snowflakes fall at high speed.
D. Snowflakes fall with rain.
()2. How many kinds of weather can snowflakes tell us according to the passage?
A. One.
B. Two.
C. Three.
D. Four.
()3. What can humans use to watch and study snowflakes dancing?
A. Naked eye or high-speed cameras.
B. Naked eye or radars.
C. High-speed cameras or radars.
D. Scientists or weathermen.