Many years ago，people relied on the sun，the moon and stars to find their way around.Later，the compass was introduced.And now，we have the satellite navigation（衛(wèi)星導航） system to guide us.The system uses groups of satellites to show the user's location.They send information to a receiver，such as a smartphone，to show us where we are.
The earliest built satellite navigation system is the Global Positioning System（GPS），which belongs to the U.S.Then there is Russia's Global Navigation Satellite System，the European Union's Galileo and China's own satellite navigation system，BeiDou.
On October 14，2017，an ARJ21-700 plane，which was the first domestically-produced jet equipped with the BeiDou navigation system，successfully completed a test flight.The results showed the performance of the system developed by China matches that of similar systems produced abroad，according to the Commercial Aircraft Corporation of China.
Since its introduction in 2000，the BeiDou navigation system has seen increasing numbers of applications linked to everyday life，from shared bikes to farming.
When it comes to shared bikes，smart locks that support BeiDou chips offer more accurate positioning than others，making it easier to find a bike.
Farmers can use BeiDou-enabled tractors to plow the soil and use unmanned aircraft with BeiDou to sow seeds，which can improve efficiency and make better use of resources.BeiDou's farming applications have spread from Heilongjiang Province to Beijing，Liaoning，Shanxi，Hubei and other regions across China.
With its many uses，the BeiDou navigation system is even playing a big role in the Belt and Road Initiative."To date，the BeiDou system has covered most parts of the Asia-Pacific region，as well as countries along the Silk Road Economic Belt and the 21st Century Maritime Silk Road，"said Yang Changfeng，chief designer of the BeiDou system.
Today，there are more than 20 BeiDou satellites above our heads，and China plans to launch even more this year to expand the BeiDou network to better serve the Belt and Road Initiative.
"As BeiDou expands its overseas reach，it will be increasingly popular in the logistics（物流） industry，"said Miao Qianjun，secretary-general of the navigation services association."Ships，for example，can use it to position themselves while sailing across oceans to European countries，no longer limited to Southeast Asian regions in the near future."
（1）What is the purpose of the first two paragraphs？DD
A．To compare some modern satellite navigation systems.
B．To describe the benefits of satellite navigation systems.
C．To tell us how satellite navigation systems were created.
D．To introduce some satellite navigation systems and their functions.
（2）What can we know about the BeiDou navigation system according to the article？AA
A．It was used successfully in a new jet plane.
B．It is more powerful than other satellite navigation systems.
C．It was introduced to China on October 14，2017.
D．It wasn't used in our everyday life until recently.
（3）What is the BeiDou navigation system already widely used for according to the article？AA
A．Plowing the soil and sowing seeds.
B．Improving the efficiency of networks.
C．Producing more smart locks for shared bikes.
D．Navigating ships across oceans to European countries.
（4）What is Miao Qianjun's attitude toward the future of the BeiDou system？CC
A．Worried.
B．Casual.
C．Positive.
D．Doubtful.
【考點】說明文．
【答案】D；A；A；C
【解答】
【點評】
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發(fā)布：2024/12/14 23:0:1組卷：4引用：2難度：0.5
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1．Most of us spend our lives seeking the natural world.We go fishing，sit in the garden，have a picnic，live in the suburbs or go to the seaside.The most popular leisure activity in Britain is going for a walk.When joggers jog，they don't run on the streets.Every one of them tends to go to the park or the river.
But despite this，our children are growing up naturedeprived（剝奪）.I spent my boyhood climbing trees.These days，children are robbed of the ancient freedom，due to problems like crime，traffic，the loss of the open space and strange new ideas about what is best for children，that is to say，things that can be bought，rather than things that can be found.
The truth is to be found elsewhere.A study in the US：families had moved to better housing and the children were assessed for ADHD—Attention Deficit Hyperactivity Disorder（注意力缺陷多動癥）.Those whose accommodation had more natural views showed an improvement of 19%；those who had the same improvement in material surroundings but no nice view improved just 4%.
ADHD is one of the great problems of modern childhood.One study after another indicates that contact with nature gives huge benefits to ADHD children.However，we spend money on drugs rather than on green places.
The life of old people is measurably better when they have access to nature.The increasing concern for the growing population of old people is in quality rather than quantity of years.And study after study finds that a garden is the single most important thing in finding that quality.Even problems with crime and aggressive behaviour are reduced when there is contact with the natural world.
We need the wild world.It is essential to our wellbeing，our health and our happiness.
（1）According to the author，people enjoyto seek nature.
A．jogging on the street
B．running in the gym
C．shopping in the supermarket
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（2）From the second paragraph，we can see that.
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C．climbing trees will certainly do good to the children
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（3）In what way do people benefit from their contact with nature？
A．Children with ADHD can be cured.
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C．Problems with crime and violent behavior will easily be solved.
D．A garden nearby improves the quality of old people's life.
（4）what is the main idea of this passage？
A．Access to nature improves our life.
B．Nature treats children for ADHD.
C．Getting close to nature reduces crime.
D．Man can't live without natural areas.發(fā)布：2025/1/6 16:30:6組卷：0引用：1難度：0.5 -
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D．It suggests that the local people are well educated.發(fā)布：2025/1/6 16:30:6組卷：0引用：1難度：0.5 -
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A．Favorable.
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（4）What does the underlined phrase "in limbo" in the last paragraph mean？
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D．Unbelievable.發(fā)布：2025/1/6 15:30:8組卷：0引用：1難度：0.5
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