Good morning. I am Professor Armstrong, and I am your laboratory instructor. This class is intended as a necessary part of the course, which Dr Smith will be in charge of. This class will meet twice a week. This laboratory begins at nine. I expect you to be on time. I do not intend to wait for the latecomers or repeat what has already been covered if you miss the explanation. And do not arrive late and interrupt your neighbor. You may as well not come if you can't be on time.

　　Attendance is equally important. If you miss three lab classes, you're dropped from the labs—no excuses. You can't complete the course without completing the lab.

　　Besides, safety is key here. It's very important to keep things neat and clean, dress properly, and be careful. You may not eat, drink or smoke in the laboratory and you should always clean the counterand wash your hands both before and after the class. Long hair must be tied back. Large clothing must not be worn. Any laboratory accident must be reported immediately.

　　I hope you'll enjoy the laboratory. It's a wonderful place, and all the requirements I've just mentioned are to be followed. We will begin today by learning about the microscope.

　　1. According to the passage how will be the latecomers be treated?
　　A. They will be allowed to enter the class and the teacher will repeat information for them.
　　B. They had better come quietly as long as they don't interrupt their neighbor.
　　C. They will be dropped from the class if they are late three times.
　　D. They will not be given any special consideration.

　　2. According to the passage what happens if a student misses three classes?
　　A. He can make up the classes.
　　B. He will be dropped from the class.
　　C. He may be allowed to remain if he has a good excuse.
　　D. He can't complete the lab without completing the course.

　　3. What should you do if you wear long hair?
　　A. You must have it tied back.
　　B. You have to cut it.
　　C. You will be asked to leave class.
　　D. You may as well not come to the lab.

　　4. According to the requirements which of the following isn't right?
　　A. You must report it immediately if there is any laboratory accident happens.
　　B. Don't eat, drink or smoke in the laboratory.
　　C. You can dress whatever you like.
　　D. Wash your hands both before and after the class.

　　答案与解析:

　　1. D  推理判断题。根据第1段中 I do not intend to wait for the latecomers or repeat what has already been covered if you miss the explanation 可排除 A；根据第1段最后两句 And do not arrive late and interrupt your neighbor. You may as well not come if you can't be on time 可排除 B；根据第2段第 2 句 If you miss three lab classes, you're dropped from the labs—no excuses 可排除 C。故答案为 D。

　　2. B  事实细节题。根据第2段第 2 句 If you miss three lab classes, you're dropped from the labs—no excuses 可知答案为 B。

　　3. A  事实细节题。根据第3段倒数第 3 句 Long hair must be tied back 可知答案。

　　4. C  推理判断题。根据第3段末句 Any laboratory accident must be reported immediately 可知 A 正确；根据第3段第 3 句 You may not eat, drink or smoke in the laboratory 可知 B 正确；根据第3段第 2 句中的 dress properly 及倒数第 2 句 Large clothing must not be worn 可知 C 不正确。故答案为 C。

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