一、抄写句子并写出相应的中文意思。
1. Be careful. You shouldn't run on the stairs. It's not safe.

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2. Please move out of the way.

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1. Be careful. You shouldn't run on the stairs. It's not safe. 小心点。你不应该在楼梯上跑。这不安全。 2. Please move out of the way. 请让路。

二、从方框中选择合适的答句，抄写下来。
A. We should warm up first and wear sports shoes.
B. We should keep to the right and not run or jump.
C. We should walk slowly.
D. We shouldn't push others on the sports ground.
1. — How can we keep safe on the stairs? —
2. — What should we do in PE class first?
—
3. — What shouldn't we do with our classmates in PE class?
—
4. — What should we do after running in PE class?
—

1. We should keep to the right and not run or jump. 2. We should warm up first and wear sports shoes. 3. We shouldn't push others on the sports ground. 4. We should walk slowly.

三、根据表格提示，补全课文内容。（用上should/shouldn’t）
| | Should | Shouldn’t |
|----------|----------------------------|------------------------------------------------|
| Stairs | keep to the right, walk slowly | run on the stairs, jump from the stairs |
| PE class | warm up first | push others, sit down right now after running |
Stairs can be not safe. When we walk on the stairs, we and walk slowly. We run on the stairs, and we jump from the stairs. In PE class, we first. We push others. After running, we sit down right now. We walk slowly.

should keep to the right; shouldn't; shouldn't; should warm up; shouldn't; shouldn't; should