四、阅读表达
Do you live in a city? Do you know how cities began? Long long ago, the world had only a few thousand people. These people moved from one place to another. They moved over the land, hunting animals for food.
No one knows how or when these people learned about growing food. But when they did, their lives changed. They did not have to move houses any more. They could stay in one place and grow it. People began to live near each other, so the first village grew. Many people came to work in the villages, and these villages became larger and larger.
Then people had machines. Life in the villages changed again. People built factories. More and more people lived near the factories, so the villages grew into cities. Some of them grew very big. Today, it's strange that some people are moving back to small villages. Can you tell me why?
回答下面5个问题，每题答案不超过5个词。
1. How many people were there in the world long long ago?

2. Why did people move from place to place long long ago?

3. What did the villages grow into after people built factories?

4. When did people learn about growing food?

5. In your opinion, why are some people moving back to small villages?

1. A few thousand.
2. To hunt animals.
3. Cities.
4. No one knows.
5. Quiet life. (答案不唯一，合理即可，如：Fresh air.)

1. 定位第一段“Long long ago, the world had only a few thousand people.”，直接提取答案。
2. 定位第一段“They moved over the land, hunting animals for food.”，概括原因。
3. 定位第三段“More and more people lived near the factories, so the villages grew into cities.”，直接提取结果。
4. 定位第二段“No one knows how or when these people learned about growing food.”，明确时间未知。
5. 结合生活常识，城市可能存在拥挤、污染等问题，乡村更宁静，用简洁词概括。