Modern day robots may not be as entertaining as R2 D2 or the robot from Lost in Space,but robots are very important to space exploration and are being used in a variety of different ways for several important reasons.
Robots make great explorers on planets,moons,and other landing areas.Aside from the earth,just about every surface in the solar system is unsafe for humans to explore.The air on most other planets is insufficient for humans to breathe,making it necessary to wear a space suit and oxygen equipment.The temperatures on these surfaces are much too hot or much too cold for any humans to withstand.Plus there would be complications with radiation,weather,and a lack of gravity.Robots have much less limitation in these areas and can survive much longer under these conditions.
Robots are designed for collecting scientific data.Robots are also able to perform many tasks at one time and can process information much quicker and more efficiently.Important scientific projects from detecting minerals,analyzing ground samples,to finding water are all performed much quicker and accurately by robots.
The use of robots has made the cost of space exploration much less expensive than it would cost for humans to do the work.In order to successfully send humans into space we would need to build a vehicle that can not only carry humans,but also enough food and water to keep them alive for the duration of the trip.Moreover,robots have no problems working for hours on end.Robots never complain,they don't require food or water,and they never need a bathroom break.
Over the past 30 years or so there have been many different types of robots used successfully in the exploration of space.Perhaps the most famous and successful robots are Spirit and Opportunity who have both been exploring the surface of Mars.They have both been very successful with experiments on soil and rocks and have even found evidence of water in Mars' history.
(1)Which of the following would be the best title for the passage? DD
A.The Development of Robots
B.The Discovery of Space Exploration
C.No Robots,No Space Exploration
D.Robots Are Used in Space Exploration
(2)The underlined word "withstand" in Paragraph 2 most probably means " BB".
A.remain
B.bear
C.defeat
D.develop
(3)According to the passage,which of the following is NOT true? AA
A.The use of robots in space exploration costs more than the use of humans.
B.It is dangerous for humans to explore other surfaces in the solar system except the earth.
C.Both Spirit and Opportunity have found the evidence of water on Mars.
D.Many different types of robots have explored the space successfully.
(4)What is the writer's attitude in this passage? DD
A.Negative.
B.Persuasive.
C.Subjective.
D.Objective.
【考點】說明文.
【答案】D;B;A;D
【解答】
【點評】
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發(fā)布:2024/7/17 8:0:9組卷:8引用:3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 enjoy
A.jogging on the street
B.running in the gym
C.shopping in the supermarket
D.sitting in the garden
(2)From the second paragraph,we can see that
A.Children don't want to approach nature
B.children probably spend less time in nature nowadays
C.climbing trees will certainly do good to the children
D.children tend to be happier as a result of their material satisfaction
(3)In what way do people benefit from their contact with nature?
A.Children with ADHD can be cured.
B.Children's performance at school is greatly improved.
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 -
2.It is widely believed that biodiversity(生物多樣性)is promoted to save species.But in reality species exist only as part of ecosystems and cannot survive unless their ecosystems are protected along with as much as possible of the diversity they contain.
Protecting habitats(棲息地)is important for keeping biodiversity.In 2003,over 102,000 habitats covering nearly 19 million square kilometres,or 11.5% of the world's land surface,were under some form of protection.Though this is a great improvement since 1962,when just 1,000 protected habitats were listed,it is still not considered enough to stop the ecocide that is endangering the world's biodiversity.
For a number of environmentalist,protecting the world's 25 biodiversity hotspots(熱點地區(qū))is critical to saving habitats and species.But many hotspots are endangered already,having lost up to three-quarters of their original plants.
The poor state of most biodiversity hotspots results directly from population growth and migration(遷移) into these areas.A study found that by the mid-1990s around 1.1 billion people lived in these hotspots.Moreover,the annual population growth rate in these areas was 1.8%,higher than the global average of 1.4%.The PAI report concluded that human-related environmental changes will continue to put pressure on hotspots.Therefore,keeping biodiversity requires paying close attention to population size.
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