题目内容

【题目】Water is a liquid (液体) ; but it can also be a solid when it is very cold and turns to ice. It can also be a gas, when it evaporates (蒸发) and become water vapour (水蒸气) .

The water cycle

Water is very important, and without it life on Earth should be impossible. The oceans that

cover three quarters of the Earth’s surface can be thought of as our great water reservoirs. All the

time, water is being evaporated from the ocean’s surface by the warmth of the sun. High in the sky this water vapour, turns into clouds which drift (漂浮 ) over the land, often creating rainfall. As the rain falls,it seeps (滂漏 ) into the soil and then into rivers that flow back into the oceans, where it is ready to begin all over again!

下而是被打乱的有关The water cycle(水循环)的信息,请根据短文内容重新排序。

请将答案编号涂卡。首句己给出:

Water is warmed by the sun and turns into water vapour and rises into the sky.

A. Rains falls from the clouds.

B. The rivers take the water back to the sea.

C. The clouds drift over the land.

D. The water seeps through the soil and back into rivers.

E. At the watch vapour cools,it turns into clouds.

1_________

2_________

3_________

4_________

5_________

【答案】

1E

2C

3A

4D

5B

【解析】文章大意:这是一篇科普知识类阅读,主要介绍水变成雨的循环过程。首先地表上的水被蒸发变成水蒸气,然后水蒸气升高变成云,遇冷就会降雨,重新返回河流,在流入大海,最后准备重新开始这个循环过程。

1句意:水蒸气冷却时,它形成了云。 根据倒数第二行“High in the sky this water vapour, turns into clouds.”(天空中的水蒸气,变成了云)可知,在水蒸气冷却时,它变成了云,是水循环的第一步。故答案选E。

2句意:云漂浮在大地上空。根据倒数第二行“turns into clouds which drift (漂浮 )over the land” (化成云飘过大地)可知,云飘过大地,是水循环的第二步。故答案选C。

3句意:雨滴从云层上掉落下来。根据倒数第二行最后“often creating rainfall.”(往往造成降雨)可知,雨从云里掉落,是水循环的第三步。故答案选A。

4句意:水渗入土壤,然后流入河流根据最后一行“As the rain falls,it seeps(滂漏 )into the soil and then into rivers that flow back into the oceans”(当雨落下时,它渗入土壤,然后流入河流再流回海洋)可知,水渗入土壤并回流到河流中,是水循环的第四步。故答案选D。

5句意:,河流把水带回大海。根据最后一行“flow back into the oceans,where it is ready to begin all over again!”(流回海洋,在那里准备好重新开始!)可知,河流把水带回大海,又开始了新的循环。故答案选B。

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Return to the moon

It might not be long until humans uncover the secrets of the far side of the moon. China’s Chang’e 4 robotic probe (探测器), which is set to become the first probe to land on the moon’s far side, was launched successfully on Dec 8, Xinhua reported.

The moon rotates (自转) at the same speed that it orbits (运行) Earth. Therefore, the same side of the moon always faces Earth. The far side of the moon is the side that we cannot see. We don’t know much about it so far.

However, the far side of the moon is an ideal (理想的) place for scientific research(研究). It is exposed (暴露) to solar winds that may have formed unique minerals (矿物质) and other resources. And since the far side is less affected by Earth’s gravity, scientists can make clearer observations of deep space from there, according to China Daily.

But it is hard to land on the far side of the moon. Spacecraft that land there cannot receive any radio signals(信号) from Earth. To solve this problem, China launched a relay satellite (中继卫星) called Queqiao into space in May. Through Queqiao, scientists can control and operate Chang’e 4 and make sure it will land in a specific(特定的) area.

The probe’s travel time is also important. Chang’e 4 is expected to land on the moon on Jan 2, China Daily reported. It will travel through space for more than 20 days before landing. This is longer than Chang’e 3, which was in space for about 12 days before landing.

The travel time was changed because scientists want Chang’e 4 to land on the moon when it is daytime. This way, the spacecraft’s solar panels ( ) can receive energy from the sun and allow the probe to start working. A single day on the moon is about 28 days on Earth. Therefore, Chang’e 4 will keep orbiting the moon before landing as it waits for daytime, according to Sun Zezhou, chief designer of Chang’e 4.

Did you know? Chang’e 4 took some plant seeds and eggs to the moon. It was hoped that Chang’e 4 was able to do experiments with them. These were the first biological experiments to take place on the moon.

1Is Chang’e 4 the first probe to land on the far side of the moon?

2What does the far side of the moon refer to(指代)?

3Why does the same side of the moon always face Earth?

4How did Chinese scientists solve the problem of no signals?

5Why do scientists want Chang’e 4 to land in daytime?

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