Question

　　The most valuable rubbish in the world is not in the world, but in orbit around it． Space has always contained "trash": a little dust raised from Earth by air currents, cosmic ray fragments, and some cosmic dust caused by meteors． Explosions from the sun's surface may have added some atomic nuclei, carried outward into space by the solar wind． But there is much more trash now． When the hatch of a space capsule opens, dust particles float out． Sometimes small objects escape． Astronaut Edward White's heat-reflecting glove, dropped during the first space walk, is up there． There are several thousand fragments from upper rocket stages, some satellites that did not work, and some satellites still working． A Titan rocket that destroyed itself added 339 pieces to the orbiting rubbish．

　　Several hundred man-made objects that were space travelers have disappeared: they burned up as they reentered Earth's atmosphere． One famous piece that returned successfully was found in the United States, when two policemen kicked it out of the middle of a street in Wisconsin． It was a twenty-pound piece of Russia's Sputnik IV．

1．Present-day space trash is called valuable because of_______．

A．materials used in it　　B． the total cost of producing it

C．its possible use as atomic energy D．None of the above

2．Before our time, Earth's only addition to space rubbish was_______．

A．some atomic nuclei　　B． cosmic ray fragments

C．cosmic dustD． None of the above

3． The writer says a space capsule adds to rubbish when________．

A．a hatch opens　　 B．rockets fire

C．food is jettisoned D．any astronaut goes for a walk

4．The article dropped during the first space walk was a_________．

A． camera B． piece of nylon cord

C．heat-reflecting glove D． glare-proof plastic visor

5．When a Titan rocket destroyed itself, the trash was increased by_____．

A．339 pieces B．399 pieces

C．several thousand pieces D．twenty pounds

6．Implied but not stated:

A．Some working satellites are still in orbit．

B．There is some way of counting objects in orbit．

C．All objects that have disappeared from orbit have burned up on reentering our atmosphere．

D．Radar is used to track objects in space．

7．The policemen probably kicked the object they found because it_______．

A．was useless B． had come from space

C．might cause an accident D． looked dangerous

8．This famous object was from_______．

A．a Titan rocket　　 B． an American lunar capsule

C．Russia's Sputnik II D． Russia's Sputnik IV

Answer 1

答案：B;D;A;C;A;B;C;D
解析：

orbit 的词义从后面的around it便可得知。但是还有许多生词，比较难以辨认，这种才测词汇的能力，需要在平时的大量阅读活动中逐渐积累。

提示：

话题：“太空垃圾”语篇的阅读技巧。重点：细节捕捉、生词猜测。