四、从方框中选择合适的句子补全对话，有一项多余。
Su Hai: It's time for PE class. Let's go!
Yang Ling: Wait! 1.
Su Hai: Why? I want to run fast.
Yang Ling: If you run fast on the playground, you may fall down.
PE teacher: Boys and girls! 2. Mike is pushing his friends on the stairs.
PE teacher: Mike, that's dangerous! 3.
Mike: 4.
Su Hai: I feel tired after running.
Yang Ling: Don't sit down right now. 5.
Su Hai: OK.
A. You should warm up first.
B. I'm sorry. I won't do that again.
C. And don't jump from the stairs.
D. Don't run fast.
E. Let's walk slowly.

1. D 2. A 3. C 4. B 5. E

五、学校生活丰富多彩，学校安全尤其重要。选单词，补全短文。
warm up safe push run right
School safety is very important. When we go to school, we should follow the rules. On the stairs, we shouldn't 1. fast. We should keep to the 2. . In PE class, we must 3. first to stay 4. . We mustn't 5. our classmates. If we follow these rules, we can have a happy school life.

1. run 2. right 3. warm up 4. safe 5. push

六、学校就是我们的家，我们不仅要学习知识，还要保证自己的安全。阅读Liu Hui同学的演讲稿，判断句子正(T)误(F)。
School is our second home. We need to keep safe every day. Here are some safety rules for students. First, on the stairs, we should walk slowly and keep to the right. We mustn't run or jump from the stairs. It's easy to get hurt. Second, in PE class, we should warm up before we play sports. We shouldn't push or pull our classmates. If someone feels tired, we should help them sit down and drink some water. Third, in the classroom, we shouldn't play with sharp things like knives. We should listen to the teacher carefully in class. If we follow these rules, we can stay safe and study happily at school.
()1. We can run fast on the stairs.
()2. We should warm up first in PE class.
()3. We can push our classmates in PE class.
()4. Playing with sharp things in the classroom is safe.
()5. Following safety rules helps us stay safe at school.

1. F 2. T 3. F 4. F 5. T