题型:阅读选择 题类:常考题 难易度:普通
仁爱科普版九年级上Unit 4 Amazing Science Topic 2 I’m excited about thethings that will be discovered in the f
Astronauts are not like pilots, who fly into sky. They need some special trainings. They will fly into space. First they go to the Johnson space center in Houston Texas. They are tested there. Space doctors want to know how strong and smart they are.
First of all, their hearts are tested. The people walk or run. Next, the space doctors see how fast their hearts are beating.
Then it is another important test. In this test the person must curl his body up in a ball. And when he is in that position, he will be put into a round cloth bag. The doctors don't tell him how long he will have to stay in the bag. If a spaceship broke down in space, the astronauts would get into bags like these. Then they would have to wait, curled up in darkness, until they are saved. You can know that an astronaut must not be afraid of tight spaces or darkness.
After these tests, scientists only choose the best people to start astronaut training in a training center. They will learn many other things in training. They will learn how to jump out of moving airplane, to blow up a lifeboat and get into it while they are in the ocean.
They also have to learn how to get lifted out of the ocean by a helicopter.
When they finish training, the astronauts go on to work. They stay in good situation by running and doing exercise. They read about the special jobs. In that way they will be able to learn new facts about space travel.
Finally, the astronaut is told to go to work on a flight into space. The members begin to know each other first. Then they can learn which jobs each will do.
a. Doctors do tests on the astronauts.
b. The astronauts go to the space center.
c. The astronauts learn new facts about space travel.
d. The best people are chosen for training.
e. The astronauts go to work on a flight in space.
A. Who gets the flu? B. What is the flu? C. When did the flu first appear? D. Why is the flu dangerous? E. What is the difference between the flu and a cold? |
Flu (流感)season is coming! Are you prepared? Here are answers to your question!
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The flu is a virus(病毒) that passes easily from person to person. Usually the flu appears in winter and the rainy season.
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In fact,they come from different viruses. Although the symptoms(症状) can be almost the same,flu symptoms are more serious. Cold symptoms only last about seven days while the flu can last two weeks.
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The seasonal flu is very common all over the world. Children,old people and people in poor health catch the flu easily. In the United States,five to twenty percent of the people pet the flu every year.
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The flu is pretty dangerous. It can give you fever(发烧) or even make you die. Every year in some countries.
In your opinion, how to keep us away from the flu?(no more than 20words) {#blank#}5{#/blank#}
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