Astronauts in America who fly into space need special training.First they go to Huston，Texas.That is the home of the Johnson Space Center.There they are tested to see how strong and smart they are.
The first test is for the heart.The people walk or run，and then the space doctors see how fast their hearts beat.
Another important test is performance.In this test，the person must curl（蜷曲）his body up in a ball.When he is in that position（姿势），he is put into a round cloth bag.The doctors give him no idea how long he will have to stay in the bag.If a spaceship broke down in space，the astronauts would get into bags like this.Then they would have to wait and curl up in darkness until help could arrive.You can see that an astronaut must not be afraid of tight space or darkness.
After the tests，only the best people are chosen to start astronaut training in a training center.The astronauts in training learn many other things.They learn how to jump out of a moving airplane.They learn to blow up a lifeboat and get into it while they are in the ocean.The astronauts also have to learn how to get lifted out of the ocean by helicopter.That seems fun，but it can be dangerous.
After they finish training，the astronauts continue to work.They stay in good shape by running and doing exercise.They read about their special jobs.In this way，they can learn new facts about space travel.Then the big day comes.The astronauts are told to go to work on a flight into space.
（1）Why don't the astronauts know how long they will stay in the bags in the test？ DD
A．Because the doctors need to know how strong they are.
B．Because the astronauts need to know how smart they are.
C．Because good astronauts mustn't be afraid of darkness or tight space.
D．Because nobody knows when help will come if the spaceship breaks down.
（2）The astronauts don't learn how to AAin the training center.
A．walk or run in space
B．jump out of a moving plane
C．blow up a lifeboat
D．get lifted out of water by helicopter
（3）Which is the correct order according to the passage？ CC
a.Doctors do tests on the astronauts.
b.The astronauts go to the Space Centre.
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 into space.
A．a，b，c，d，e
B．d，a，e，b，c
C．b，a，d，c，e
D．c，d，e，b，a
（4）When is the big day for the astronauts？ CC
A．After the tests，the best people are chosen to start astronaut training in a training center.
B．After they finish training，the astronauts continue to work.
C．When the astronauts are told to go to work on a flight into space.
D．After they are tested to see how strong and smart they are.
【考点】说明文．
【答案】D；A；C；C
【解答】
【点评】
声明：本试题解析著作权属菁优网所有，未经书面同意，不得复制发布。
发布：2024/4/20 14:35:0组卷：14引用：1难度：0.3
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（2）From the second paragraph，we can see that.
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D．To inform diverse views on the changes of Roald DahI's books.发布：2025/1/30 8:0:1组卷：5引用：1难度：0.4
