题目内容：

    That was the end of the term. When we were studying something about DNA, Mr. Hunt, the science teacher, told us to prepare for a debate（辩论）. I was a little worried. We found we were against a group which was filled with native English-speaking students, while there was only one American boy in our group. However, we didn’t dread the challenge. Our topic was “Should college accept students based on their DNA traits（特征）?”We opposed this thought.

I took the role of Q&A. When I went back to the dormitory(寝室）, I asked for help from an experienced debater in college. He taught me how to express ideas, search for information on different websites and list the points.

After a week’s preparation, I stood on the stage with a well-thought plan in my mind. Then I noticed that the hope of our group, the American boy, was sick that day. His position of first speaker was empty. I had to take his position and plan my materials and data again. Before the debate, I kept asking myself what if I couldn’t understand what they were saying, and what if they included some idioms（惯用语）that I didn’t even know. I was even nervous. But when I stood in front of the whole class, I saw trust and encouragement from my group members. I started to cool down. I fluently stated our opinions and asked questions. When our opponents（对手）had their opening speech, I wrote down some points to retort（反驳）them. Although Mr. Hunt didn’t tell me who won the debate, I believe I have already learned a lot. Never lose confidence and you will surely win.

阅读短文，回答下列问题。

1.Why was the writer worried that day?

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2.What does the underlined word “dread” mean in Chinese?

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3.What did the experienced debater teach the writer to prepare for the debate?

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4.When did the writer calm down?

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5.What does the writer want to tell us?

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