(Q).
Read the article and select the best answer. Article: Can you imagine astronauts' everyday life in space? They also need to eat, sleep, exercise and relax. They do the same things as us, but they do them differently. On Earth, we put food on a plate. _ holds the food down and keeps it on a place. But there is almost no gravity in space, so food can float away, and astronauts must eat carefully. Sleeping is very different in space. Some astronauts like to float in the air, but most like to be in a sleeping bag. They tie the bag to a wall so that they won't float away at night. Exercise is very important in space. On Earth, your legs carry your body, but in space, astronauts float, so they do not use their legs often. This is very bad for their legs, so they must exercise for thirty minutes every day. After a day's work, astronauts relax. They may listen to music, read, watch films, play games, or talk to their friends and families on the radio. Sometimes they just enjoy floating in the air. Question: What's the main idea of the passage? Options: A: It is about the importance of gravity. B: It is about astronauts' everyday life in space. C: It is about the differences between space and Earth. D: It is about how to avoid floating away while sleeping.
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B

(Q).
Read the article and select the best answer. Article: As we all know, the ocean moves. But waves breaking on the beach make the ocean fun. When you stand on the shore and look at the waves, it seems like the water is moving towards you. But the water is not really moving forward. The moving you see is wave energy. And wave energy comes from the wind. Let's think about how this works. As wave energy passes through the water, the energy makes particles of water move up and down. Just give you an example of a wave passing under a basketball. We put a basketball on the sea. When the wind blows, a wave comes from behind the basketball. The basketball moves up to the top with the wave. Then the wave continues and leaves the basketball behind. The basketball looks lower, but it doesn't move forward. That's because the wave energy just moves the water which is under the basketball. So why can you see a wave knock you down on the shore?When a wave moves toward the shore, the bottom of the wave slows down because _ meets the ocean floor. But the top, which is called crest , keeps moving. The different action causes the wave to fall over or break onto the shore. If a wave is very large, it carries a lot of energy when it hits the land. As time goes by, waves can break up and carry away the rocks and other things on the shore. Shorelines are changing all the time because of wave action. Question: The main idea of this passage is _ . Options: A: what makes particles of water move B: how a basketball moves on the ocean C: how wave energy causes wave action D: why a wave can knock you down
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C

(Q).
Read the article and select the best answer. Article: A Trap Mr. Smith left his car outside his apartment one night as usual, but when he came down the next morning to go to his office, he discovered that the car wasn't there. He called the police and told them what had happened, and they said that they would try to find the car. When Mr. Smith came home from his office that evening, the car was back again in its usual place in front of his house. He examined it carefully to see whether it had been damaged, and found two theater tickets on one of the seats and a letter which said, "We're very sorry. We took your car because of an emergency." Mr. and Mrs. Smith went to the theater with the two tickets the next night and enjoyed themselves very much. When they got home, they found that thieves had taken almost everything they had had in their apartment. Question: What did he do then? Options: A: He got in and drove it. B: He closed the door of his car. C: He called the police. D: He looked everywhere for it.
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C