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题型:补全对话 题类:真题 难易度:普通

        Research has become both simpler and more complex. It's simpler because,  you have computer, you can find information you need by searching the Internet. For all you information, you don't have to go to  library to find the relevant resource and take notes on it. Instead, you can find some sources from the Internet  print the copies needed. Remember, however, that you should usually consult different types of sources. That is, you  always rely just on the Internet for you research.

        While findinginformation is easier than ever, at the same time, researching has become  complex. There is a lot more material available, which means you may be overwhelmed  the amount of information. You need to learn  to sort through and find the relevant information for your particular project. Also,  need to check the accuracy of it.

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阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。

China's Chang'e 5 mission successfully delivered samples(样本)of moon rock and dust to Earth on December 17, 2020. It{#blank#}1{#/blank#}(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 Mongolia{#blank#}2{#/blank#}a little after 2:00 a. m. Recovery teams in trucks and helicopters located the landing site shortly after and secured the sample{#blank#}3{#/blank#}(contain).

While Apollo-era moon rocks are estimated to be about 3 to 4 billion years old, the material{#blank#}4{#/blank#}(collect) by Chang'e 5 is from a site in the northwest region of the moon's near side. This area was formed{#blank#}5{#/blank#}(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{#blank#}6{#/blank#}(planet)and moons(卫星).

The Chang'e lunar program, {#blank#}7{#/blank#}includes landing two lunar rovers(月球车)on the moon's surface, has been{#blank#}8{#/blank#}(remarkable)successful. Although Chang'e 5 was a short mission, it's one of{#blank#}9{#/blank#}most 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{#blank#}10{#/blank#}(launch) in 2023 or 2024.

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