语篇理解Thefirstmantostepoutofaspaceshipand“walk”inouterspacewasaRussianAlexiaLeon．AndEdwardWhitewasthefirstAmericantotakea“spacewalk”．Itisveryinterestingtoimaginewhat

题目详情

语篇理解

　　The first man to step out of a spaceship and “walk” in outer space was a Russian Alexia Leon ． And Edward White was the first American to take a “space walk” ． It is very interesting to imagine what it is like to take a “walk” in space ．

　　How did these two astronauts walk in space? Well they did not actually walk in space with their feet ． They floated there ． That is because in space there is no earth under your feet to walk on ． Space is empty ． There is nothing around you and nothing under your feet at all ． So how is it possible to walk with your feet? You can only float ． What is more as there is no up or down in space to float on your stomach or on your back or on your head all feels the same ． It does not make any difference to you whether you look at the earth upside down or right side up ．

　　A good way to help you to float in space is to use a jet gun ． It pushes you much as a jet engine pushes a plane ． It also helps you control your direction ． And in order to keep you from moving too far away from your spaceship you have to have a line with you and tie its other end to the spaceship because it would be so easy to move too fast and drift so far into space that it would be difficult to get back to the spaceship ． This line also carries oxygen for you to breathe and messages from inside the spaceship and from the earth ．

　　The first two men to work outside of a spaceship have already enjoyed “space walking” ． Their experiments are the first step toward the building of space stations for the exploration of outer space ．

1 ． This passage mainly tells us ______ ．

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A ． how people walk in outer space

B ． how people are sent into outer space

C ． how people get back onto the earth from space

D ． how people build space stations

2 ． Alexia Leon and Edward White were both ______ ．

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A ． Russians　　　 B ． Americans

C ． spacemen　　　 D ． Englishmen

3 ． In fact Leon and Edward White both ______ ．

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