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【题目】 The Mars 2020 rover(02W), which sets off for the Red Planet this year, will not only search for traces of ancient life, but pave the way for future human missions, NASA scientists said Friday as they introduced the vehicle.

The rover has been constructed in a large, sterile room at the Jet Propulsion Laboratory in Pasadena, near Los Angeles, where its driving equipment was given its first successful test last week.

Shown to invited journalists on Friday, it is scheduled to leave Earth in July 2020 from Floridas Cape Canaveral, becoming the fifth US rover to land on Mars seven months later in February.

“It's designed to seek the signs of life, so we’re carrying a number of different instruments that will help us understand the geological and chemical context on the surface of Mars,” deputy mission leader Matt Wallace told AFP.

Among the devices on board the rover are 23 cameras, two “ears” that will allow it to listen to Martian winds, and lasers used for chemical analysis.

Approximately the size of a car, the rover is equipped with six wheels like the former US rover, Curiosity, allowing it to travel along rocky land.

Speed is not a priority for the vehicle, which only has to cover around 200 yards(180 metres) per Martian day -approximately the same as a day on Earth.

Fuelled by a tiny nuclear reactor, Mars 202(has seven-foot-long(2 metres) articulated arms and a drill to crack open rock samples in locations scientists identify as potentially suitable for life.

We are hoping to move fairly quickly. We'd like to see the next mission launched in 2026 which will get to Mars and pick up the samples, put them into a rocket and finally bring them back to the Earth, "said Wallace. NASA’s Mars 2020 will remain active for at least one Martian year, which is around two years on Earth.

1What does the underlined part “pave the way” in Paragraph 1 mean?

A.Making preparationsB.Finding suitable landing sites

C.Setting up research centers.D.Constructing roads.

2What can we know about the Mars 2020 rover?

A.It looks much like a car with six wheels.

B.It is an updated of the US rover Curiosity.

C.It is solar-powered and can crack open rock samples.

D.It is able to perform different tasks on Mars in search of the signs of life

3If you search the passage on the website of China Daily, where can you probably find it?

A.LifestyleB.Regional

C.WorldD.Culture

4What is the main idea of the passage?

A.The Mars 2020 rover has successfully passed its first driving test.

B.NASA is planning a new round of space exploration

C.Future human missions on Mars are on the way

D.A new rover will be launched to carry out scientific research on Mars

【答案】

1A

2D

3C

4D

【解析】

这是一篇新闻报道。文章主要说明了美国宇航局科学家上周五介绍火星2020漫游者(02W)时表示,今年启程前往火星,它不仅将寻找古代生命的痕迹,而且将为未来的人类任务做好准备。同时介绍了这一款火星探测器的一些情况。

1

词义猜测题。结合后文for future human missions可知火星2020漫游者不仅将寻找古代生命的痕迹,而且将为未来的人类任务做好准备。由此可知,划线短语“pave the way”意思为“做好准备”。故选A

2

细节理解题。根据第四段“It's designed to seek the signs of life, so we’re carrying a number of different instruments that will help us understand the geological and chemical context on the surface of Mars,” deputy mission leader Matt Wallace told AFP.可知“这是为了寻找生命迹象而设计的,所以我们携带了许多不同的仪器,这些仪器将帮助我们了解火星表面的地质和化学环境,”副任务负责人Matt Wallace告诉法新社。由此可知,火星2020漫游者能够在火星上执行不同的任务,寻找生命的迹象。故选D

3

推理判断题。根据文章主要说明了美国宇航局科学家上周五介绍火星2020漫游者(02W)时表示,今年启程前往火星,它不仅将寻找古代生命的痕迹,而且将为未来的人类任务做好准备。同时介绍了这一款火星探测器的一些情况。这属于国外科技类文章,结合选项可推知,如果你在中国日报的网站上搜索这篇文章,你可能会在“World(世界)”部分找到它。故选C

4

主旨大意题。根据第一段The Mars 2020 rover(02W), which sets off for the Red Planet this year, will not only search for traces of ancient life, but pave the way for future human missions, NASA scientists said Friday as they introduced the vehicle.可知美国宇航局科学家上周五介绍火星2020漫游者(02W)时表示,今年启程前往火星,它不仅将寻找古代生命的痕迹,而且将为未来的人类任务做好准备。同时介绍了这一款火星探测器的一些情况。由此可知,这篇文章的主旨是一个新的漫游者将被发射到火星上进行科学研究。故选D

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