单选题Questions 18-21 are based on a conversation about renting an apartment．

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单选题Are you happy? Do you remember a time when you were happy? Are you seeking happiness today? Many have sought a variety of sources for their feeling of happiness. Some have put their heart and efforts into their work. Too many turned to drugs and alcohol. Meanwhile, untold numbers have looked for it in the possession of expensive cars, exotic vacation homes and other popular "toys". Most of their efforts have a root in one common fact: people are looking for a lasting source of happiness. Unfortunately, I believe that happiness escapes from many people because they misunderstand the journey of finding it. I have heard many people say that, "I'll be happy when I get my new promotion," or "I'11 be happy when I get that extra 20 pounds." It is dangerous because it accepts that happiness is a "response" to having, being or doing something. In life, we all experience stimulus and response. Today, some people think that an expensive car is stimulus. Happiness is a response. A great paying job is stimulus. Happiness is a response. This belief leaves us thinking and feeling: "I'll be happy when ..." It has been my finding that actually the opposite is true. I believe that happiness is a stimulus and response is what life brings to those who are truly happy. When we are happy, we tend to have more success in our work. When we are happy, we more naturally take better care of our bodies and enjoy good health. Happiness is not a response but a stimulus. Happiness is a conscious choice we make in daily life. For unknown reasons to me, many choose to be upset and angry most of the time. Happiness is not something that happens to us after we get something we want—we usually get things we want after we choose to be happy.

单选题Questions 11～14 are based on the following conversation.

单选题What does "have lived a bit" mean?

单选题Some anatomical features of a pig are similar to those of a human. Therefore ______.

单选题 IQuestions 18 ～ 21 are based on the following dialogue about buying tickets./I

单选题According to the author, a bachelor resists marriage chiefly because ______.

单选题Adam Smith, a writer in the 1700s, was the first person to see the importance of the division of labor and to explain part of its advantages. He gives as an example the process by which pins were made in England. "One man draws out the wire, another strengthens it, a third cuts it, a fourth points it, a fifth grinds it at the top to prepare it to receive the head. To make the head requires two or three distinct operations. To put it on is a separate operation, to polish the pins is another. And the important business of making pins is, in this manner, divided into about eighteen distinct operations, which in some factories are all performed by different people, though in others the same man will sometimes perform two or three of them," Ten men, Smith said, in this way, turned out twelve pounds of pins a day or about 4 800 pins a person. But if all of them had worked separately and independently without division of labor, they certainly could not turn out any pin, each of them would have made twenty pins in a day and perhaps not even one There can be no doubt that division of labor is an efficient way of organizing work. Fewer people can make more pins. Adam Smith saw this but he also took it for granted that division of labor is in itself responsible for economic growth and development and that it accounts for the difference between expanding economies and those that stand still. But division of labor adds nothing new: it only enables people to produce more of what they already have.

单选题According to the passage, which of the following statements is TURE?

单选题 {{I}} Questions 22～25 are based on a conversation at the airport.{{/I}}

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单选题{{I}} Questions 18-21 are based on the following conversation. You now have 20 seconds to read the questions 18-21.{{/I}}

单选题Regarded as a kind of art form, toys ______.

单选题Questions 22-25 are based on the following dialogue between a librarian and a student.

单选题How much will the man have to pay if he buys two pens.'?