3 Read and write “should” or “shouldn’t”. 下列行为应该做还是不应该做呢？读一读，用“should”或“shouldn’t”填空。
a. In class, we listen to the teachers.
b. In the classroom, we run or jump.
c. In the library, we be quiet.
d. We keep the school clean and tidy.
e. We draw on the desk.

a. should
b. shouldn’t
c. should
d. should
e. shouldn’t

翻译:
3 读一读，用“应该”（should）或“不应该”（shouldn’t）填空。
a. 在课堂上，我们_________听老师讲课。
b. 在教室里，我们_________跑或跳。
c. 在图书馆里，我们_________保持安静。
d. 我们_________保持学校干净整洁。
e. 我们_________在课桌上画画。

4 Think and write. 想一想并写一写，为你们学校的微机室制定一些规则。

We should:
1. keep quiet in the computer room.
2. listen to the teacher carefully.
3. wash our hands before using the computers.
4. sit properly in our seats.
5. turn off the computers after class.
We shouldn’t:
1. eat or drink in the computer room.
2. play computer games.
3. run in the computer room.
4. touch the computers with dirty hands.
5. talk loudly with classmates.

We should:
1. keep quiet in the computer room.
2. listen to the teacher carefully.
3. wash our hands before using the computers.
4. sit properly in our seats.
5. turn off the computers after class.
We shouldn’t:
1. eat or drink in the computer room.
2. play computer games.
3. run in the computer room.
4. touch the computers with dirty hands.
5. talk loudly with classmates.