B. 请选择你关注的一种自然灾害,查找资料并完成下列任务。
What is the natural disaster?
It is 1. .
Where does it usually happen?
It usually happens 2. .
What causes it?
3. .
How does it affect people?
4.

What can we do to stay safe?（within 15 words）
We can 5. .

1. a flood
2. near rivers, lakes, or places with heavy rain
3. It is caused by too much rain or melting snow that makes water cover dry land.
4. It can wash away homes, ruin crops, and make people sick from dirty water.
5. move to higher ground, avoid flooded roads, and save clean drinking water
(答案不唯一,合理即可)

【Language Focus】
A Heavy Snowstorm
I'm Ted. Last night, a heavy snowstorm hit our city. We 1. (have) dinner at home when it started. At that time, the wind 2. (blow) hard outside, and big snowflakes(雪花) 3. (fall) from the sky quickly. My little sister 4. (watch) a cartoon on TV, but she soon felt scared because the window was making a loud noise.
My dad looked out of the window and found the street was already white. My mum 5. (call) my grandparents to tell them about the snowstorm while she 6. (make) some hot tea. My brother and I 7. (prepare) some candles in case(以防万一) the electricity went off. We 8. (talk) about what to do if the snow kept falling when the lights suddenly went out.
While we 9. (light) the candles, the neighbour next door was knocking at our door. He said his family needed some help, and my dad went to help him at once. All night, we 10. (stay) together at home, waiting for it to stop.
任务一:请在横线处写出动词正确的过去进行式。
任务二:列出短文中所有过去进行时的动词,完成下列表格。

任务一:1. were having 2. was blowing
3. were falling 4. was watching
5. was calling 6. was making
7. were preparing 8. were talking
9. were lighting 10. were staying
任务二:
1. was blowing; was watching; was making; was calling; was knocking
2. were having; were falling; were preparing; were talking; were lighting; were staying
3. 现在分词
4. when
5. while