2012年职称英语理工B级考前每日一练(12月30日)

　　补全短文(第46～50题，每题2分，共10分)$lesson$

　　阅读下面的短文，文章中有5处空白，文章后面有6组文字，请根据文章的内容选择5组文字，将其分别放回文章原有位置，以恢复文章原貌。请将答案涂在答题卡相应的位置上。

　　Should the U.S. halt human apace flight?

　　The Columbia accident has revived the debate on whether the rewards of human space exploration are worth the risks No. I was a teacher when men first landed on the moon in 1969, and I remember how it moved my students and this country. (46) And we haven't ventured outward since then. That's 30 years too long! America's human space-flight program is adrift, with no clear vision or goals beyond the completion of the International Space Station.

　　I want NASA to establish a phased series of goals over the next 20 years, including human visits to asteroids that cross the Earth's orbit, establishing a research and living facility for humans on the moon, and human expeditions to the surface of Mars and its moons. (47)

　　An astronaut is today's Christopher Columbus, who sailed into the unknown and discovered the Americas. The knowledge we gain from having actual people exploring can never be replaced by robots. (48) Robots are useful, but humans can do things that robots can't.

　　The real obstacle we face in overcoming the drift in the nation's human space-flight program is not technological and it's not financial. (49)

　　The lesson from the Columbia accident is not that humans don't belong in space. (50)

　　A Instead, we should honor the memory of the lost astronauts by pushing our exploration of space future.

　　B Astronauts are key to this expanded exploration.

　　C It's the lack of commitment to get started.

　　D Until then, we should stop risking people's lives by sending them into space.

　　E It is now more than 30 years since the last American left the surface of the moon and returned to Earth.

　　F Our ability to send humans into space and have them return gives us amazing information about ourselves and our universe.

　　答案：46. E　　47. B　　48. F　　49. C　　50. A

　　我们首先看六个选项，目的是为了能够抓住一些关联词并且能够了解选项的意思，为后面做题做准备。

　　A 注意instead 代替; 顶替

　　B 宇航员是扩展探索的关键。

　　C 注意这里的it，前面一定是有it指代的对象。

　　D Until then...直到那时...,空句前面

　　E 最近的一位美国人离开月球表面，回到地球的事已经是30多年前了。

　　F 送人类进入太空并且使其能回到地面的能力给我们带来了关于人类本身和我们宇宙的惊奇信息。

　　46. E　由前句我们可知，这是一名老师在讲述人类第一次登上月球带给他和他学生的感动，后面一句是And we haven't ventured outward since then我们从那以后就没有了对外界的冒险。所以空句应该是E

　　47. B　这段话只有一个句子，其中用的最多的名词就是human，例如human visits，living facility for humans，human expeditions原因就是选项B，因为宇航员是扩展探索的关键。原文中的human指的就是宇航员。

　　48. F　空句后面是Robots are useful, but humans can do things that robots can't.虽然机器人很有用，但是人类能做机器人不能做的事。很明显这是在强调人类的能力，所以选项F符合。

　　49. C 这段话是讲人类太空飞行中遇到的漂移解决方案。既不是技术上的，也不是财政上的，而是缺乏准备开始为宇航事业献身精神。

　　50. A 从哥伦比亚事故中吸取的教训不是我们不属于太空，而是我们应该展开太空探索以此来表达我们对那些牺牲了的宇航员的梦想的尊敬。