1. (2021·池州模拟) 阅读理解

Now we are in a "golden age" of space-sample collection and exploration. Space agencies around the world are busy collecting, or planning to collect, samples from asteroids（小行星），moons and planets and so on.

China's Chang'e-5 mission is the most recent sample-return mission that has been successfully completed. On Dec 17, 2020, the Chang'e-5 lunar probe（探测器）returned home and landed in the Inner Mongolia Autonomous Region after weeks of space travel, China Daily reported. This was the world's first lunar sample-return mission since 1976. The mission collected 1,713 grams of samples of rocks and dust with the help of a drill and a mechanical（机械的）arm.

Another space sample-return mission was completed on Dec 6, 2020. Japan's Hayabusa-2 probe returned a capsule to Earth containing valuable samples from the asteroid Ryugu. This was the second time asteroid samples had ever been collected and brought back to Earth. The first asteroid samples were collected by the original Hayabusa spacecraft back in 2010.

There will be more such missions in the near future. NASA's OSIRIS-REx spacecraft, which collected samples from the asteroid Bennu in October 2020, is expected to return to Earth in 2023. Russia's Lunar-25 mission is scheduled to launch to the moon in 2021 to collect lunar samples.

"I cannot emphasize enough how valuable return samples are for increasing our understanding of the origin and evolution of our solar system and our place in the universe, and how we came to be," said Ann Nguyen, a NASA planetary scientist

As for the Chang'e-5 lunar samples, scientists will conduct various analyses, tests and experiments to determine the composition, structure and physical characteristics of the samples. This information will help to deepen our knowledge about the history of the moon, as well as our solar system as a whole.

1. （1） What do we know about the Chang'e-5 lunar probe?

   A . It was launched on Dec 17,2020. B . It completed the most successful mission. C . It collected the world's first lunar sample. D . It brought back more than 1,700 grams of lunar samples.
3. （2） What does the author focus on in paragraphs 3 and 4?

   A . Providing examples. B . Explaining a concept. C . Drawing comparisons. D . Making a summary.
5. （3） Why do we collect samples from space according to Ann Nguyen?

   A . To learn more about how the solar system originates and evolves. B . To determine the structure of the solar system. C . To deepen our knowledge about our place on Earth. D . To understand how water first appeared on the moon.
7. （4） Which can be a suitable title for the text?

   A . A "golden age" comes B . Man explores space C . Space samples land D . Scientists analyse samples