三、阅读理解（共20小题；每小题1分，满分20分）
阅读下列材料，从短文后所给各题的四个选项A、B、C和D中，选出最佳选项

。
A
Miss Lily King,
I’m Wang Fang. I am a librarian in Nanjing Library.
I’m sorry to remind you that you have four overdue( 过期的)

books.
Please return the four books tomorrow. Other people may be waiting

to borrow them. You may not borrow any new books until these books

have been returned.
Yours truly,
Wang Fang

　　（B）Can we live without salt? No, salt is very important to us, we need salt in our food. Animals need it, too. Most of the salt in our country comes from the sea. People dig very big pools and let sea water in. When the sun dries up the water, people can get salt from the ground. The salt is white, clean and beautiful.
　　There are a lot of salt wells(井) in Sichuan. A salt well in much like a water well. People bring the well water up to the ground and then dry it in big jars over fire. In this way, they get salt.
　　We can also get salt from salt mines(矿). A salt mine may be found under the ground. Some years ago, people in Jiangxi found a big salt mine and soon opened it. People there don’t need salt from other places any more.
　　In the northwest of our country, there are many salt lakes. Some of these lakes are very big. The salt even in one big lake will be enough for our people for centuries.

　　（C ） Will it matter if you don’t take your breakfast? A short time ago, a test was given in the United States. People of different ages, from 12 to 83, were asked to have a test. During the test, these people were given all kinds of breakfasts and sometimes they got no breakfast at all. Scientists wanted to see how well their bodies worked when they had eaten different kinds of breakfasts.
　　The result shows that if a person eats a right breakfast, he or she will work better than if he or she has no breakfast.
　　The result is opposite to what some people think. Having no breakfast will not help you lose weight. This is because people become so hungry at noon that they eat too much for lunch. They will gain weight(增加体重) instead of losing it. You will lose more weight if you reduce your other meals.

　　(D)“How are you?” is a nice question. It’s a friendly way that people in the USA greet each other. But “How are you?” is also a very unusual question. It’s a question that often doesn’t have an answer. The person who asks “How are you?” hopes to hear the answer “Fine”, even if the person’s friend isn’t fine. The reason is that “How are you?” isn’t really a question and “Fine” isn’t really an answer. They are simply other ways of saying “Hello” or “Hi”.
　　Sometimes, people also don’t say exactly what they mean. For example, when someone asks “Do you agree?”, the other person might be thinking, “No, I disagree, I think you’re wrong…” But it isn’t very polite to disagree so strongly, so the other person might say “I’m not sure.” It’s a nicer way to say that you don’t agree with someone.
　　People also don’t say exactly what they are thinking when they finish talking with other people. For example, many talks over the phone finish when one person says “I’ve to go now.” Often, the person who wants to hang up gives an excuse: “Someone’s at the door.” “Something is burning on the stove.” The excuse might be real, or it might not. Perhaps the person who wants to hang up simply doesn’t want to talk more, but it isn’t polite to say that. The excuse is more polite, and it doesn’t hurt the other person.
　　Whether they are greeting each other, talking about an idea, or finishing a talk, people often don’t say exactly what they are thinking. It’s an important way that people try to be nice to each other, and it’s all part of the game of language.