Passage 23【2020 •福建省】

From tiny seeds（种子）, great discoveries grow. A mini-garden carried on China's Chang'e 4 moon lander recently became home to the first plant to grow on another world.
This is yet another success for Chang'e 4. On January 2, the probe（探测器）became the first lander to touch down on the far side of the moon. This is the unknown face of the moon that is always looking away from us, so we never see it from down here on the earth. Although it is often regarded as the dark side of the moon, the far side actually gets as much sunshine as the near side. For example, when all we can see is a silver sliver of a new moon, the far side of the moon is in full sunlight.
Part of Chang'e 4's mission（使命）is to see how a moon base could be built for humans, including exploring（探索）whether humans could grow food and other plant products there. Chang'e 4 carried a mini-garden with air, water and soil with seeds planted in it. When plants shoot on the earth, their stems grow away from the gravity（the force that keeps your feet on the ground）, and so they always shoot upwards. The moon's gravity is a sixth as strong as the earth's, so Chang'e 4's experiment was a test: would the earth plants know which way was up on the moon? Four days after landing, a tiny cotton shoot showed that they do.
Night has now fallen on the far side of the moon; sunlight will not return until the start of February. As a result, the cotton shoots died. Besides the darkness, the plants can't stand the cold（it can drop to -170℃ on the moon at night）. However, the experiment is a success, since it has proved that it is possible for plants to grow in space.
41．The text is mainly about ________.
A．another success for Chang'e 4 B．Chang'e 4 moon lander
C．tiny seeds in the soil D．the steps of an experiment
42．Which of the following is TRUE about Chang'e 4?
A．It carried a mini-garden. B．It landed on the near side of the moon.
C．It explored the moon base. D．It found plants on the moon.
43．From the text we can know that ________.
A．the far side of the moon gets less sunlight
B．we can see the far side of the moon from the earth
C．the stems fail to grow away from the earth's gravity
D．the earth plants know the way to grow on the moon
44．What can be inferred（推理）from the text?
A．Plants can be grown on the moon soon. B．It is perfect to do experiments on the moon.
C．The cotton shoots can last days on the moon. D．We can see a new moon at the start of February.
45．In which section of a magazine can you read the text?
A．Health and sport. B．History and culture.
C．Science and technology. D．Population and environment.

文章主要是介绍嫦娥四号的又一次成功：搭载了一个空气、水和土壤的小花园，里面种着种子的一个实验，以及实验的结果加以分析。
41．A【解析】细节理解题。根据文章的开头From tiny seeds（种子）, great discoveries grow. A mini-garden carried on China’s Chang’e 4 moon lander recently became home to the first plant to grow on another world. This is yet another success for Chang’e 4. 从微小的种子中孕育出伟大的发现。中国嫦娥四号登月器上的一个小花园最近成了另一个世界上第一株植物的家园。这是嫦娥四号的又一次成功。可知文章主要是关于嫦娥四号又一次成功的事情，故选A。
42．A【解析】细节理解题。根据文中A mini-garden carried on China’s Chang’e 4 moon lander recently became home to the first plant to grow on another world.可知，A选项是正确的；根据文中the probe（探测器）became the first lander to touch down on the far side of the moon.可知，B选项错误；根据文中Part of Chang’e 4’s mission（使命）is to see how a moon base could be built for humans, including exploring（探索）whether humans could grow food and other plant products there.可知，C选项错误；而文中并没有提到在月球发现植物的情况，所以D选项排除，故选A。
43．D【解析】细节理解题。根据文中so Chang’e 4’s experiment was a test: would the earth plants know which way was up on the moon? Four days after landing, a tiny cotton shoot showed that they do. 所以嫦娥四号的实验是一个测试：地球上的植物知道月球上哪个方向是向上的吗?着陆四天后，一株小小的棉花芽表明它们可以。可知地球上的植物知道如何在月球上生长，故选D。
44．D【解析】推理判断题。根据文中Night has now fallen on the far side of the moon; sunlight will not return until the start of February.可知，现在月亮背面是夜晚，直到二月初阳光才会照射到，而那个时候就会出现新月，故选D。
45．C【解析】推理判断题。根据整个文章的理解可知，主要是讲述嫦娥四号的又一次成功：搭载了一个空气、水和土壤的小花园，里面种着种子的一个实验，这样的文章应该是在科学信息方面会有，故选C。