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    【题目】听第10段材料，回答第17至20题。

    【1】How many lab sessions will the students have every week?

    A. One B. Two C. Three

    【2】What are the students allowed to wear in the lab ?

    A. Long scarves B. Loose clothes C. Tennis shoes

    【3】Why should the students avoid mixing liquid with paper?

    A. It may cause a fire B. It may create waste C. It may produce pollution

    【4】What does the speaker mainly talk about?

    A. Grades the student will receive

    B. Rules the students should follow

    C. Experiments the students will do.

    【答案】

    【1】A

    【2】C

    【3】A

    【4】B

    【解析】Text 10

    M: Hello, everyone. My name is John. I’m the teaching assistant for this lab session. Let me explain a little about it. As you may know already, it’s a required meeting once a week. I expect you to do all the experiments and keep the results in your lab notebook. I’ll collect the notebooks every two weeks. You’ll be graded on lab notebooks and quizzes. But the most important information I want to give you now is about safety. First of all, you must wear shoes that cover your feet in the lab. Tennis shoes are OK. Also, don’t wear loose clothes, long scarves, big necklaces, or loose belts — they get caught in something or fall into liquid. Another thing to do for safety is cleaning up. Be sure to put the waste in the correct containers. We can’t mix liquid with paper. This is extremely important. I don’t want any fires in this room. You are responsible for washing out your own lab equipment and putting it away. If you don’t do this, I will take away points from your grade. Nobody’s going to clean up after you. OK, any questions?

    【1】略

    【2】略

    【3】略

    【4】略

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