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三、请根据句意从方框中选择合适的动词,并用其适当时态填空,使句子通顺
hold create manage arrive
1. —Can you hear me, Kitty?
—Louder, please. I can’t hear you clearly. The students ________ a celebration.
2. I decide to take a photo with my hero as soon as he ________ at the airport.
3. We are sure that he can win the prize because he ________ a lot of new things.
4. Without any help, his father ________ to repair the car all by himself at last.
hold create manage arrive
1. —Can you hear me, Kitty?
—Louder, please. I can’t hear you clearly. The students ________ a celebration.
2. I decide to take a photo with my hero as soon as he ________ at the airport.
3. We are sure that he can win the prize because he ________ a lot of new things.
4. Without any help, his father ________ to repair the car all by himself at last.
答案:
1. are holding 2. arrives 3. has created 4. managed
四、阅读理解
In a famous sci - fi film, an astronaut named Mace must leave his spacecraft without a protective suit for 15 seconds. He makes it through with the damage (损害) as a result of being very cold. Have you ever wondered what might happen to your body in space without a spacesuit?
On the Earth, our atmosphere (air) protects us from the Sun’s harmful UV rays, controls temperatures and also keeps a nice atmospheric pressure. The vacuum (真空) of space, however, is full of dangers.
One of the serious dangers Mace might face in outer space is ebullism (体液沸腾). The pressure in the vacuum of space is so low that the boiling point of the fluids (液体) in your body drops below the body’s normal temperature (37℃), which results in the formation of gas bubbles in your fluids that can really make you feel aching.
Another serious danger is the lack of oxygen. After around 15 seconds, your body would have used up all of the oxygen in itself and you’d lose consciousness (意识). Some of you may be thinking, “But I can hold my breath for minutes!” The situation in space is a little different than here on the Earth because of the lack of outside pressure, and if you held your breath in space without a suit you’d be in a big trouble. This is because any remaining air would rapidly enlarge, breaking the lungs.
After losing consciousness, you’ll probably last a couple of minutes at most. Of course, there’s all that awful UV from the Sun which is going to give you serious sunburn, likely leading to cancer.
Is it the damage for coldness a reasonable result of the suitless spacewalk in the film? Actually, it’s extremely cold in space, but astronauts wouldn’t immediately freeze because heat leaves the body very slowly in a vacuum. Therefore, the cold wouldn’t cause Mace too much harm in just 15 seconds, even if he faced the very lowest temperatures in space. The more likely damage would be caused from the enlargement and breaking of the skin’s small blood vessels (血管).
Anyway, obviously it’s never a good idea to go into space without some kind of protection. But don’t lose hope because you are probably saved with timely help before you die, so keep up.
( )1.What can the atmosphere on the Earth do for us?
① protect us from the Sun’s harmful UV rays
② control temperatures for us
③ keep a nice atmospheric pressure
④ improve the pressure in the vacuum of space
A. ①②④ B. ①②③ C. ②③④ D. ①③④
( )2.What danger may Mace face?
A. The boiling point of the fluids in the body rises above the body’s normal temperature.
B. The formation of gas bubbles in his fluids that can really make him feel aching.
C. He may lose consciousness because the spacesuit uses up all of the oxygen.
D. Heat leaves the body very quickly and the Sun may give him serious sunburn.
( )3.What is the main purpose of writing this passage?
A. To encourage readers to learn from Mace in the film.
B. To show the readers a lot of serious air problems.
C. To discuss the causes of vacuum in the outer space.
D. To explain the damage in space without a spacesuit.
( )4.What is the best title of the passage?
A. Dangers in space B. Atmosphere on the Earth
C. Suitless spacewalk D. Damage for coldness
In a famous sci - fi film, an astronaut named Mace must leave his spacecraft without a protective suit for 15 seconds. He makes it through with the damage (损害) as a result of being very cold. Have you ever wondered what might happen to your body in space without a spacesuit?
On the Earth, our atmosphere (air) protects us from the Sun’s harmful UV rays, controls temperatures and also keeps a nice atmospheric pressure. The vacuum (真空) of space, however, is full of dangers.
One of the serious dangers Mace might face in outer space is ebullism (体液沸腾). The pressure in the vacuum of space is so low that the boiling point of the fluids (液体) in your body drops below the body’s normal temperature (37℃), which results in the formation of gas bubbles in your fluids that can really make you feel aching.
Another serious danger is the lack of oxygen. After around 15 seconds, your body would have used up all of the oxygen in itself and you’d lose consciousness (意识). Some of you may be thinking, “But I can hold my breath for minutes!” The situation in space is a little different than here on the Earth because of the lack of outside pressure, and if you held your breath in space without a suit you’d be in a big trouble. This is because any remaining air would rapidly enlarge, breaking the lungs.
After losing consciousness, you’ll probably last a couple of minutes at most. Of course, there’s all that awful UV from the Sun which is going to give you serious sunburn, likely leading to cancer.
Is it the damage for coldness a reasonable result of the suitless spacewalk in the film? Actually, it’s extremely cold in space, but astronauts wouldn’t immediately freeze because heat leaves the body very slowly in a vacuum. Therefore, the cold wouldn’t cause Mace too much harm in just 15 seconds, even if he faced the very lowest temperatures in space. The more likely damage would be caused from the enlargement and breaking of the skin’s small blood vessels (血管).
Anyway, obviously it’s never a good idea to go into space without some kind of protection. But don’t lose hope because you are probably saved with timely help before you die, so keep up.
( )1.What can the atmosphere on the Earth do for us?
① protect us from the Sun’s harmful UV rays
② control temperatures for us
③ keep a nice atmospheric pressure
④ improve the pressure in the vacuum of space
A. ①②④ B. ①②③ C. ②③④ D. ①③④
( )2.What danger may Mace face?
A. The boiling point of the fluids in the body rises above the body’s normal temperature.
B. The formation of gas bubbles in his fluids that can really make him feel aching.
C. He may lose consciousness because the spacesuit uses up all of the oxygen.
D. Heat leaves the body very quickly and the Sun may give him serious sunburn.
( )3.What is the main purpose of writing this passage?
A. To encourage readers to learn from Mace in the film.
B. To show the readers a lot of serious air problems.
C. To discuss the causes of vacuum in the outer space.
D. To explain the damage in space without a spacesuit.
( )4.What is the best title of the passage?
A. Dangers in space B. Atmosphere on the Earth
C. Suitless spacewalk D. Damage for coldness
答案:
1—4 BBDC
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