题目内容
（请给出正确答案）
A．Y
B．N
C．NG
如果结果不匹配，请 联系老师 获取答案
更多“When reserving a hotel room wi…”相关的问题
A．The train will be overheated when it arrives.
B．It is too hot to wait any more.
C．They are going to be late in their plan again.
D．They will have to schedule another dinner.
A.The train will be overheated when it arrives.
B.It is too hot to wait any longer.
C.They are going to be late again.
D.They will have to schedule another dinner.
A.or
B.so
C.but
D.because
A.its extremely hot indoors
B.your coat must be wet
C.wearing a coat indoors is uncomfortable
D.its an American custom to take off ones coat in this situation
听力原文：M: Open wide. Now show me where it hurts.
W: Here on the top, especially when I bite into something hot or cold.
Q: Who is the man？
(18)
A．A dentist.
B．A cook.
C．A dietician.
D．A twirler.
听力原文：M: Open wide. Now show me where it hurts.
W: Here on the bottom, especially when I bite into something hot or cold.
Q: Who is the man？
(6)
A．A dentist.
B．A teacher.
C．A cook.
D．A tailor.
However, scientists can imagine that when the whales changed their environment, their bodies underwent a change—taking on a more fish-like appearance. This new form. offered less resistance to the water, enabling the whales to swim faster.
Despite their fish-like form, whales are not fish. A whale will drown, just as a man will, if it stays under water too long. When a whale is under water, it closes its nostrils tightly and holds its breath. The air in its lungs becomes very hot and full of water vapor. When the whale rises to the surface and exhales, its hot breath produces a column of water vapor that rises high in the air. A man produces the same effect when he exhales warm air on a cold morning.
Whales are classified as mammals because they bear their young, rather than laying eggs, and because the mother whales give the babies milk. Like other mammals, whales have warm blood. Their blood stays at the same temperature, even when they move from hot to cold water. They keep warm in cold water because they have a thick layer of fat just under their skins. This fat is called blubber, and it is thicker on whales that spend their lives in cold water. Almost all land mammals, except man, have hair on their bodies to keep them warm, but whales, which have very few hairs, are kept warm by their fat.
(33)
A．Indifferent.
B．Admiring.
C．Sympathetic.
D．Tolerant.
W: I recently read that in ten years we’ll be wearing clothes that change with the weather. So when it's cold, our clothes will warm up, and when it's hot, our clothes will cool off.
M: Oh, very funny! So we'll be wearing gigantic clothes with built-in air conditioners and heaters.
W: I'm being serious! Researchers have discovered a method of treating fibers with plastic crystals capable of storing and releasing heat as the temperature fluctuates. These treated' fibers absorb more heat than untreated fibers. Researchers are still working with this, but soon this process will be widespread.
M: That's fascinating. I didn't know that fibers had the capability of storing heat. How does that work？
W: These fibers work with the heat by rearranging their structures. The treated fibers move back and forth between two solid shapes.
M: I don't understand. What kind of shapes do they change into？
W: When the weather gets warmer, the crystals take on cube shapes and absorb heat. When the weather gets cooler, the crystals become cooler and even back to their original tetragonal structure.
M: That's truly unbelievable. You said that it'll be a decade before this type of clothes will be available. What a shame! I don't think I can wait that long.
(20)
A．He is surprised.
B．He is skeptical.
C．He is disgusted.
D．He is alarmed.
听力原文： Balloons have been used for sport for about 100 years. There are two kinds of sport balloons: gas and hot air. Hot air balloons are safer than gas balloons, which may catch fire. Hot air balloons are preferred by most balloonists in the United States because of their safety. They are also cheaper and easier to man age than gas balloons. Despite the ease of operating a balloon, pilots must watch the weather carefully. Sport, balloon flights are best early in the morning or late in the afternoon, when the wind is light. Over the years, balloonists have tried unsuccessfully to cross the Atlantic Ocean. It wasn't until 1978 that three American balloonists succeeded. It took them just six days to make their trip from their homes in the United States to Paris, France. Their voyage captured the imagination of the whole world.
(31)
A．Kid's play balloons.
B．Weather balloons.
C．Balloons for safety patrols.
D．Balloons for recreation.
听力原文： We all scream for water when thirsty. But do you know But do you know in very hot dry weather, plants also make faint sounds as if they cry out for help？
You see, in a plant's stem, there are hundreds of water pipes that bring water and minerals from the soil all the way up to the leaves. As the ground turns dry, it becomes herder and harder for the plants to do this.
In severe droughts, plants have to fight to pull out any water available. Scientist Robert Winter has found out that when it is really bad, their water pipes snap from the tension like rubber bands. When that happens, the whole plant vibrates a little. The snapping pipes make noises ten thousand times more quiet than a whisper.
Robert knows that healthy well-water plants are quiet. He also knows that many insects prefer attacking dry plants rather than healthy plants. How do the insects know which ere healthy plants and which ere not？ Robert thinks that the insects may listen for the plants that cry and then they may buzz in to kill.
To test his theory, Robert is using a device that can imitate plant cries. He attacks it to a quiet healthy plant so that the plant sounds thirsty. Then he watches insects to see if they attack more often than usual,
If he is right, scientists could use the insects' ability against them. They could build traps that imitate crying plants. So when the insects buzz in to eat, they won't buzz out.
(30)
A．They give out faint cries.
B．They make noises to drive away insects.
C．They extend their water pipes.
D．They become elastic like rubber bands.
