【题目】The moon is providing a rare triple treat this week. On Wednesday, much of the world will get to see not only a blue moon and a “supermoon”, but also a total lunar eclipse(月蚀). Having all three events taking place at the same time is extremely unusual.

A total lunar eclipse happens when the Earth comes between the Sun and a full moon. The Earth blocks the sun’s light, making the moon appear dark in the sky. A blue moon is a second full moon in one month. It is rare enough that English speakers use the expression “once in a blue moon”to describe it! A supermoon is a full or new moon. It appears brighter and bigger than usual because the moon is closer to the earth than usual.

In a total lunar eclipse, the Earth covers the moon’s surface with its shadow, giving it a red-like color. For that reason, it is also known as a “blood moon. ”Some people are calling this week’s lunar event a “super blue blood moon.” Noah Petro is a scientist with the American space agency NASA. He is calling the lunar event, “the Super Bowl of moons.” No matter what the name, it is likely to impress if the skies are clear.

Just as last August’s total solar eclipse cooled the Earth’s surface, a lunar eclipse cools the surface of the moon. It’s this sudden cooling- from the heat of direct sunlight to almost a deep freeze—that researchers will be studying.

1Which of the following picture shows a total lunar eclipse?

A. B.

C. D.

2What does the underlined phrase in paragraph 2 usually refer to?

A. Something that is rarely noticed.

B. Something that is round and bright.

C. Something that does not happen often.

D. Something that can arouse people’s curiosity.

3What will the lunar eclipse do to the moon?

A. Make it absorb less heat.

B. Make it give off less heat.

C. Make its inner part cooler.

D. Make its surface heat go down.

4What’s the main idea of the passage?

A. It explains how the lunar eclipse happens.

B. It tells us NASA’s achievements in observing the moon.

C. It offers us some information about a rare total lunar eclipse.

D. It is about the effects that the lunar eclipse will have on the moon.

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