根据In the future, people may travel to Mars (火星) by water-powered spaceship,可知,本文主要介绍了在未来,人们可能会乘坐水力飞船去火星旅行,并介绍了这种飞船的原理和优势。故选B。 (2)题详解: 词义猜测题。根据上一句“Today's spaceships could not carry that much water.”可知现在的飞船是不能...
In the future, people may travel to Mars by water-powered spaceship! Today’s spaceships are fine for getting things into space, but they are not so good at travelling long distances. These spaceships burn chemical fuels (燃料), and they are very expensive. Scientists say that a water-power...
首句“In the future, people may travel to Marsby water-powered spaceship”和尾句“If these scientists arecorrect, we may soon be on our way to Mars in a spaceshippowered by water"相呼应,揭示了文章的主题——在将来,人们可能会乘坐水动力宇宙飞船前往火星。故选B。7.D。推理判断题。此题可联系...
Of course, the spaceship will have to carrya lot of water for the long trip to Mars.One US company has already developed some space-ships like this. Two of them have already been sent upinto space, using rockets and then later filled with air. Balloon" spaceships could be very large so...
In the future, people may travel to Mars in a water-powered spaceship! Today's spaceships are fine for getting things into space, but they are not so good at traveling long distances. These spaceships burn chemical fuels(燃料), and they are very expensive. Scientists say that a water-...
根据第一段In the future,people may travel to Mars (火星) by water-powered spaceship!(将来,人们可能会乘坐水动力宇宙飞船前往火星,)以及结合下文,可知文章主要描述的就是将来,人们可能会乘坐水动力宇宙飞船前往火星,故选B。(2)细节理解题。根据Of course,the spaceship will have...
In the future, people may travel to Mars by water-powered spaceship.C. One US company has already developed a spaceship like this.D. Scientists say the biggest advantage of such a spaceship would becost.第22题:分析文章结构可知,本文是总分总的结构,第一段中的”和最后一段中的“”都提及了...
In the future, people may travel to Mars(火星) bywater-powered spaceship! Today's spaceships are fine forgetting things into space, butthey are not so good attrav-elling long distances. Scientists are trying to invent a wa-ter-powered spaceship which could make the trip to Marsmuch cheaper...
In the future,people may travel to Mars by water-powered spaceship!Today's spaceships are fine for getting things into space,but they are not so good at travelling long distances.These spaceships burn chemical fuels,and they are very expensive.Scientists say that a water-powered spaceship could...
∴In the future,people may travel to Mars in a water-powered spaceship!Today's spaceships are fine for getting things into space,but they are not so good at traveling long distances.These spaceships burn chemical fuels(燃料),and they are very expensive.Scientists say that a water-powered spac...