2. 职称英语
  3. For thousands of years comets had been a mystery to

For thousands of years comets had been a mystery to

游客2023-07-23  65
问题     For thousands of years comets had been a mystery to                              【M1】______
man. They travel across the sky very fast and have a
bright ’tail’ of burnt gas. The comet Tempel I has an                                【M2】______
orbit far outside the orbit of the furthest planet in our
solar system, Pluto. It has had been there for 4.6 billion years,                    【M3】______
133 million kilometres from Earth. Last week
a little American spacecraft crash into Tempel 1.                                    【M4】______
The spacecraft had a camera and it took a photograph
of the comet every minute after it finally crashed into                              【M5】______
its surface. The space mission to Tempel 1 cost $ 335
million and was called Deep Impact. Spacecraft was                                   【M6】______
travelling at 37,000 kilometres per hour when it hit the comet
and the crash completely destroying the spacecraft. But before                       【M7】______
it hit the comet, the spacecraft took some amazingly photographs.                    【M8】______
The last one was a close up picture the spacecraft spent                             【M9】______
just 3 seconds time before it crashed into the comet.                                【M10】______ [br] 【M6】
选项
答案 The space
解析 考冠词的用法。乍看没有什么问题。联系上下文看到这里的Spacecraft是指上文的那个飞船，所以前面应该用表特指的the。补充：可数名词单数单独出现时，前面都要有a，an或the。
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