单项选择题

In Sections A, B and C you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. Mark the correct answer to each question on your ANSWER SHEET.
SECTION A CONVERSATIONS
In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that follow.
Questions 1 to 4 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.
Now, listen to the conversation.
What is the conversation mainly about

A．How to do well on poetry examination.
B．The effect of caffeine.
C．Some causes of heart disease.
D．Problems with the man’s cafeteria.

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问答题

[听力原文]OpportunityOpportunities don’t come often. They come every once in a while. Very often, they come quietly and go by without being noticed. Therefore, it’s advisable that you should value and treat them with care.When an opportunity comes, it brings a promise but never realizes it on its own. If you intend to fulfill one of your ambitions, you must work hard. Otherwise, you will take no advantage of opportunities when they visit you.The difference between a successful man and one who does not lies only in the way treating opportunities. The successful person always makes adequate preparations to meet opportunities. The loser, on the other hand, works little and just waits to see them pass by.There are plenty of opportunities for everyone in our society, but only those who are prepared adequately and qualified highly can make use of them to achieve their purpose. Chance favors the minds that are prepared.

单项选择题

The millions of calculations involved, ______ by hand, would have lost all practical value by the time they were finished.

A．had they been done
B．they had been done
C．having been done
D．they were done

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