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完形填空scientists are very interested in the universe .and they

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完形填空
scientists are very interested in the universe .and they always want to know more about it years ago they knew many things about the (1) .they knew how big it was and (2) it was from the earth (3) they still wanted to know more .they thought the (4) way was to send (5) to the moon .the moon is about 284000 kilometres away from the earth .a common plane cannot fly to the moon because the (6) reaches only 240 kilometres away from the earth but (7) can fly even when there is no air .that is rocket .
how can a rocket fly if you want to know get a balloon and then blow it up until it is quite big .do not tie up the neck of the balloon ,but let it go the balloon will fly off (8) the air very quickly .the air inside the balloon can go through the air .it does not need wings like a plane .
there is gas in the rocket .so it can fly out into (9) .rockets with men in them have been to the moon several rockets have already flown to (10) planet much farther away than the moon .one day ,rockets may be able to go to any place in space .
1.A.star B.moon C.sun D.planet
2.A.how much B.how long C.how many D.how far
3.A.so B.and C.but D.or
4.A.worst B.best C.secret D.correct
5.A.ships B.men C.animals D.planes
6.A.air B.light C.jupiter D.mars
7.A.anything B.nothing C.something D.none
8.A.by B.on C.from D.through
9.A.space B.air C.cloud D.station
10.A.other B.another C.the other D.others
完形填空scientists are very interested in the universe .and they
1.B 2.D 3.C 4.B 5.D 6.A 7.B 8.D 9.A 10.A