27. According to the experiment, what problem can insufficient sleep cause in students?
28. What message did the researcher intend to convey to parents?
Passage Two
Questions 29 to 32 are based on the passage you have just heard.
Patricia Pania never wanted to be a public figure. All she wanted to be was a mother
and home-maker. But her life was turned upside down when a motorist, distracted by his
cell phone, ran a stop sign and crashed into the side of her car. The impact killed her
2-year-old daughter. Four months later, Pania reluctantly but courageously decided to try
to educate the public and to fight for laws to ban drivers from using cell phones while a
car is moving. She wanted to save other children from what happened to her daughter. In
her first speech, Pania got off to a shaky start. She was visibly trembling and her voice
was soft and uncertain. But as she got into her speech, a dramatic transformation took
place. She stopped shaking and spoke with a strong voice. For the rest of her talk, she
was a forceful and compelling speaker. She wanted everyone in the audience to know
what she knew without having to learn it from a personal tragedy. Many in the audience
were moved to tears and to action. In subsequent presentations, Pania gained reputation
as a highly effective speaker. Her appearance on a talk show was broadcast three times,
transmitting her message to over 40 million people. Her campaign increased public
awareness of the problem, and prompted over 300 cities and several states to consider
restrictions on cell phone use.
29. What was the significant change in Patricia Pania’s life?
30. What had led to Pania’s personal tragedy?
31. How did Pania feel when she began her first speech?
32. What could be expected as a result of Pania’s efforts?
Passage Three
Questions 33 to 35 are based on the passage you have just heard.
Many people catch a cold in the spring time or fall. It makes us wonder if scientists
can send a man to the moon. Why can’t they find a cure for the common cold? The
answer is easy. There’re actually hundreds of kinds of cold viruses out there. You never
know which one you will get, so there isn’t a cure for each one. When a virus attacks
your body, your body works hard to get rid of it. Blood rushes to your nose and causes a
blockade in it. You feel terrible because you can’t breathe well, but your body is actually
eating the virus. Your temperature rises and you get a fever, but the heat of your body is
killing the virus. You also have a running nose to stop the virus from getting into your
cells. You may feel miserable, but actually your wonderful body is doing everything it can
to kill the cold. Different people have different remedies for colds. In the United States
and some other countries, for example, people might eat chicken soup to feel better. Some
people take hot bath and drink warm liquids. Other people take medicines to relieve
various symptoms of colds. There was one interesting thing to note. Some scientists say
taking medicines when you have a cold is actually bad for you. The virus stays in you
longer, because your body doesn’t develop a way to fight it and kill it.
33. According to the passage, why haven’t scientists found a cure for the common cold?
34. What does the speaker say about the symptoms of the common cold?
35. What do some scientists say about taking medicines for the common cold, according
to the passage?
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