题目内容

【题目】Although Damin is old,he is very fit.

A. fat but healthy B. thin and strong

C. strong and healthy D. thin but healthy

【答案】C

【解析】

试题分析:句意:尽管大民老了,但是他很强壮健康。此题考查同义词。根据句意,应选C。

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【题目】

Many years agopeople depended on the sunthe moon and stars to find their way around. Laterthe compass was introduced. And nowwe have satnav(卫星导航)systems to guide us.

A satnav system uses groups of satellites to show the user's location. They send information to the receiversuch as a smart phoneto show us where we are.

The earliest built satnav system is the Global Positioning System(GPS)which belongs to the US. Then there is Russia's Global Navigation (导航) Satellite System(GLONASS)the European Union's Galileo and China's own satellite navigation system—BeiDou.

On October 142017an ARJ21700 planewhich was the first plane made in Chinawith the BeiDou navigation systemsuccessfully completed a test flight. The results showed the performance of the system developed by China matches that of similar systems produced abroadaccording to the Commercial Aircraft Corporation of China.

Since its introduction in 2000the BeiDou navigation system has seen an increasing number of applications linked to everyday lifefrom shared bikes to farming. For examplesmart locks with BeiDou chips make it easier to find a bike. Farmers can use BeiDou to help plow()the soil and sow seeds. BeiDou's farming applications have spread to most parts of China.

With its many usesthe Beidou navigation system is even playing a big role in the Belt and Road Initiative(一带一路).To datethe BeiDou system has covered most parts of the Asia-Pacific area”,said the main designer of the BeiDou system.

Todaythere are more than 20 BeiDou satellites above the earthand China plans to send even more this year to expand(扩展)the BeiDou network to better serve the Belt and Road Initiative. As BeiDou expands abroadit will be increasingly popular in the logistics(物流)industry.

1What is the purpose of the first three paragraphs?

A.To tell us something about GPS.

B.To show us the benefits of satnav systems.

C.To tell us how satnav systems were made.

D.To tell us about some satnav systems and how they work.

2The underlined phrase “the system” refers to “______”.

A.the Global Positioning System

B.the Beidou navigation system

C.the European Union's Galileo

D.Russia's Global Navigation Satellite System

3According to the articlethe BeiDou navigation system is already widely used ______.

A.to help farmers with farming

B.to improve the speed of networks

C.in the international logistics industry

D.in the whole Asia-Pacific area

4The writer thinks the future of the BeiDou system is ______.

A.worryingB.doubtful

C.hopefulD.surprising

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