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中小学教育资源及组卷应用平台
Unit 2 Keep Safe 分层作业（含答案）
作业说明
适配单元：Unit 2 Keep Safe（核心知识点：祈使句否定形式、should/shouldn’t 用法、安全规则相关词汇与句型）
分层设计：基础层（必做，巩固核心）、提高层（选做，灵活运用）、拓展层（选做，综合创新），适配不同水平学生
完成时长：基础层20分钟，提高层25分钟，拓展层30分钟
一、基础层（必做）—— 夯实核心知识
1. 词汇拼写（每空2分，共20分）
根据中文提示写出对应的英文单词，注意形式变化。
安全的 ___________ 2. 危险的 ___________ 3. 楼梯 ___________
滑冰 ___________ 5. 推；搡 ___________ 6. 人群 ___________
缓慢地 ___________ 8. 快速地 ___________ 9. 街道 ___________
小心的 ___________
2. 语法填空（每空3分，共30分）
用 Don’t、should 或 shouldn’t 填空，强化安全规则表达。
___________ throw things out of the window. It’s not safe.
You ___________ stand on the chair. You may fall down.
___________ run down the stairs. Walk slowly and keep to the right.
We ___________ stop at the red light when crossing the street.
You ___________ skate on thin ice. It’s dangerous.
___________ push in the crowd. Be careful!
You ___________ walk slowly in the supermarket.
___________ eat or drink in the library. There’s a “No eating or drinking” sign.
You ___________ ride bikes fast in the street. It’s dangerous.
___________ worry. I can help you.
3. 句型仿写（每句5分，共20分）
仿照例句，结合安全规则完成句子。
例句：Please don’t run down the stairs.仿写：Please don’t ___________.
例句：It’s dangerous to skate on thin ice.仿写：It’s dangerous to ___________.
例句：You should walk slowly.仿写：You should ___________.
例句：You shouldn’t push in the crowd.仿写：You shouldn’t ___________.
二、提高层（选做）—— 灵活运用技能
1. 句型转换（每小题5分，共25分）
根据要求改写句子，熟练掌握单元核心句型结构。
Please stand on the desk.（改为否定句）
It’s dangerous to play football in the street.（用 shouldn’t 改写）
You should keep to the right.（改为否定句）
Don’t swim in the lake.（改为同义句）
Should I climb the tree （作否定回答）
2. 对话补全（每空3分，共30分）
根据上下文，补全对话内容，使其通顺合理。
A: Mum, can I skate here this afternoon
B: I’m afraid not. It’s not ___________. The ice is too ___________.
A: Why It’s so cold today.
B: It’s March now. The weather is getting warm. It’s ___________ to skate on thin ice.
A: Look! There’s a sign here. What does it say
B: It says “___________ skating”. And it also says “No ___________”.
A: I see. So I ___________ skate here and I shouldn’t ___________ in the lake.
B: That’s right. Safety is the most important.
A: OK, Mum. I’ll go to the park with my friends. We’ll play games there.
B: Good. ___________ run too fast in the park. And ___________ push your friends.
A: I know, Mum. We ___________ play safely.
3. 阅读理解（每小题5分，共15分）
阅读短文，完成下列题目。
One day, Tom goes to the zoo with his mum. There are many people in the Panda House. Mum says, “Be careful! No pushing in the crowd.” Tom nods his head. Later, they want to drink some juice. But Tom sees a sign: “No eating or drinking”. He tells his mum. Then they walk to the lake. Mum says, “Don’t swim in the lake. It’s dangerous.” Tom says, “I won’t. I remember the safety rules.” They have a happy day.
( ) 1. Where do Tom and his mum go
A. The park B. The zoo C. The supermarket
( ) 2. What sign do they see near the lake
A. No pushing B. No eating or drinking C. No swimming
( ) 3. Which safety rule does Tom remember
A. Don’t push in the crowd. B. Don’t swim in the lake. C. Both A and B.
三、拓展层（选做）—— 综合创新应用
1. 书面表达（30分）
假设你是安全小卫士，根据提示写一篇短文介绍学校里的安全规则，至少6句话，语句连贯、语法正确。
提示：1. 上下楼梯的规则；2. 教室里面的规则；3. 走廊里的规则；4. 强调遵守规则的重要性。
2. 创意设计（35分）
设计3个公共场所的安全标识，包含以下内容：
标识适用场所（如公园、电影院、马路）
安全提示语（用 Don’t 或 No 开头）
说明原因（用 It’s dangerous 或 It’s not safe 开头）
示例：
场所：公园湖边
标识语：No swimming
原因：It’s dangerous to swim in the lake. You may fall into the water.
你的设计：
场所：___________标识语：___________原因：____________________________________
场所：___________标识语：___________原因：____________________________________
场所：___________标识语：___________原因：____________________________________
3. 情景对话（35分）
编写一段你和朋友在公共场所（如博物馆、动物园）的对话，包含至少5句安全规则相关表达，语句自然通顺。
分层作业答案
一、基础层
词汇拼写
safe 2. dangerous 3. stair（复数 stairs） 4. skate 5. push 6. crowd 7. slowly 8. fast 9. street 10. careful
语法填空
Don’t 2. shouldn’t 3. Don’t 4. should 5. shouldn’t 6. Don’t 7. should 8. Don’t 9. shouldn’t 10. Don’t
句型仿写（答案不唯一，合理即可）
Please don’t play with fire.
It’s dangerous to cross the street without looking.
You should be careful when walking.
You shouldn’t run in the classroom.
二、提高层
句型转换
Please don’t stand on the desk.
You shouldn’t play football in the street.
You shouldn’t keep to the left.（或 You shouldn’t not keep to the right，更简洁表达为 You should keep to the right 的否定式：You shouldn’t keep to the left）
It’s dangerous to swim in the lake. / You shouldn’t swim in the lake.
No, you shouldn’t.
对话补全
safe 2. thin 3. dangerous 4. No 5. swimming 6. shouldn’t 7. swim 8. Don’t 9. don’t 10. should
阅读理解
B 2. C 3. C
三、拓展层（答案不唯一，符合要求即可）
书面表达示例：
Hello, I’m a safety guard. There are many safety rules in our school. First, don’t run down the stairs. Walk slowly and keep to the right. Second, don’t stand on the chairs in the classroom. You may fall and hurt yourself. Third, don’t push or run in the hallway. It’s easy to knock into others. We should follow these rules. They can keep us safe and happy at school.
创意设计示例：
场所：电影院标识语：No talking loudly原因：It’s not safe to talk loudly. You may disturb others and miss the safety tips.
场所：马路标识语：Don’t cross the street when the light is red原因：It’s dangerous to cross the street at a red light. You may be hit by cars.
场所：博物馆标识语：No touching the exhibits原因：It’s not safe to touch the exhibits. You may break them or hurt your hands.
情景对话示例：
A: Hi, Lily! Let’s go to the Panda House first.
B: Great! Look, there are so many people.
A: Yes. We shouldn’t push in the crowd. Be careful!
B: Right. And don’t run here. We should walk slowly.
A: Oh, I want to drink some juice.
B: Wait! There’s a sign: “No eating or drinking”. We can’t drink here.
A: Sorry, I didn’t see it. Let’s go out after visiting the pandas.
B: Good. And remember, don’t get too close to the pandas. It’s not safe.
A: I know. Let’s follow the rules and have a good time.
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