三、阅读短文，选择正确的答案。
We have some class rules. Let's learn about them.
First, don't be late for class. When the bell rings, go to your seat quickly.
Second, listen to the teacher. Don't talk or play in class. When you have questions, put up your hand to speak. When you don't understand, you say, "Excuse me?"
Third, keep the classroom clean. Don't throw waste things(废弃物) on the floor. Put them in the bin.
These rules help us have a good class. Can you follow them?
() 1. When the bell rings, you should .
A. run outside
B. go to your seat quickly
C. talk to your friends
() 2. What should you do when you have questions?
A. Shout out.
B. Keep quiet.
C. Put up your hand to speak.
() 3. How can we keep the classroom clean?
A. By throwing things on the floor.
B. By putting waste things in the bin.
C. By leaving the classroom dirty.
() 4. Class rules help us have .
A. a bad class B. a good class C. questions
() 5. How many class rules are there in this passage?
A. One. B. Two. C. Three.

1. B 2. C 3. B 4. B 5. C

【分析】这是一篇关于班级规则的英语阅读理解题，所有题目均为细节理解题。解题思路为：先通读短文了解大意，再针对每个小题的问题，回到原文定位相关句子，对比选项选出正确答案，需注意对应原文的关键信息，避免粗心出错。
【解析】1. 定位原文第二段“When the bell rings, go to your seat quickly.”，可知铃响时应快速到座位，对应选项B；2. 定位原文第三段“When you have questions, put up your hand to speak.”，可知有问题时应举手发言，对应选项C；3. 定位原文第四段“Don't throw waste things on the floor. Put them in the bin.”，可知保持教室干净需将废弃物放进垃圾桶，对应选项B；4. 定位原文最后一段“These rules help us have a good class.”，可知班级规则帮助我们有好的课堂，对应选项B；5. 原文提到First、Second、Third三条规则，对应选项C。
【答案】1.B 2.C 3.B 4.B 5.C
【知识点】英语阅读理解细节题、班级规则话题阅读
【点评】本题为基础英语阅读理解题，聚焦班级规则话题，所有题目均为直接查找原文细节的类型，难度较低，适合巩固英语阅读细节查找能力。
【难度系数】0.8