题型：语法填空（语篇） 题类：模拟题 难易度：困难
河北省保定市2021届高三下学期英语第一次模拟考试卷
China's Chang'e 5 mission successfully delivered samples(样本)of moon rock and dust to Earth on December 17, 2020. It(mark) the first time in 4 years that moon rocks have been brought back to our planet, since the Soviet Union's I.una 24 mission in 1976.
The sample capsule landed in Inner Mongoliaa little after 2：00 a. m. Recovery teams in trucks and helicopters located the landing site shortly after and secured the sample(contain).
While Apollo-era moon rocks are estimated to be about 3 to 4 billion years old, the material(collect) by Chang'e 5 is from a site in the northwest region of the moon's near side. This area was formed(late), and the rocks here are thought to be only about 1.2 billion years old. That means scientists could learn more about the evolution of the moon and test out new techniques for estimating the age of geological samples from other(planet)and moons(卫星).
The Chang'e lunar program, includes landing two lunar rovers(月球车)on the moon's surface, has been(remarkable)successful. Although Chang'e 5 was a short mission, it's one ofmost complex projects undertaken by the Chinese space program so far. The country is far from done with the moon—Chang'e 6, a second lunar sample return, is scheduled(launch) in 2023 or 2024.
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