阅读理解 On August 27, 2003, Mars was recorded as being just 34,646,418 miles away f

阅读理解

On August 27, 2003, Mars was recorded as being just 34,646,418 miles away from us. The planet moved closer to earth than at any time in the last 5,000 years. If that doesn't sound close, just remember that it was five times as distant only six months ago.

“You can't miss Mars. It's bright and red.”said Myles Standish, an American astronomer. Mars is so close because of something called "opposition". This means the sun. the earth and Mars are positioned in a straight line and, as a result, they're closer (remember, the shortest distance between two points is a straight line) .

For the next few weeks the planet should shine brighter than any other star, apart from the moon and Venus (金星) .

It won’t be difficult to see Mars. You can use a telescope if you have one, but you won't need it. Mars will be so bright that even the lights of the city shouldn't get in the way. All you need to do is to go outside and look up at the sky. Mars can be found a little to the south and a little to the east.

But the planet will not seem very big; it will shine like a coin seen from 500 feet away. Even though Mars is twice the size of the moon, it is 145 times as distant. And it might not be red, either. If there are dust storms on Mars, it will look mostly gold. If you do see red, then you’re seeing the surface of the planet.

Make sure you go outside and have a look: the next time Mars will be this close will be August 28, 2287．

Cool facts about Mars:

The last time it rained on Mars was about 3 billion years ago. You’d have more time on Mars. The Martian day is 24 hours 37 minutes. What would you do with an extra half hour? Gravity (引力) is less on Mars than on the earth. So someone who weighs 100 pounds here would weigh only 38 pounds on Mars.

1．On February 27, 2003, Mars was about－miles away from the earth.

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2．Why was Mars so close to us on August 27, 2003?

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A．Because something is called“opposition”.

B．Because it has been moving to us in the last 5, 000 years.

C．Because the sun, the earth and Mars are positioned in a straight line.

D．Because of some unknown reasons.

3．Which of the following is TRUE about Mars?

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A．Mars will be the third brightest star in the night sky for the next few weeks.

B．For the next few weeks, Mars will be the brightest star in the night sky.

C．Mars will look red if there're dust storms on it.

D．Mars is 145 times larger than the moon.

4．If you stayed on Mars for a week, you actually stayed there for ________. And if you weighed 46 pounds on Mars, you would weigh about ________ pounds on the earth.

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A．less than 7 days; 110

B．six days and four more hours; 175

C．more than 7 days; 175

D．seven days and four more hours; 121

试题答案

答案：B;C;A;D