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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？
D
D

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 "
B
B
".
A．remain
B．bear
C．defeat
D．develop
（3）According to the passage，which of the following is NOT true？
A
A

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？
D
D

A．Negative.
B．Persuasive.
C．Subjective.
D．Objective.

【考點(diǎn)】說(shuō)明文．

【答案】D；B；A；D

【解答】

【點(diǎn)評(píng)】

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發(fā)布：2024/7/17 8:0:9組卷：8引用：3難度：0.5

相似題

1．American children aren't the only couch potatoes out there.Nearly one third of children in the world spend three hours a day or more watching TV or playing computers，according to a study of over 70，000 teens in 34 nations.
   From Argentina to Zambia，Regina Guthold of the World Health Organization in Geneva and her colleagues found that most children aren't getting enough exercise. "In terms of physical activity levels，we did not find much of a difference between poor and rich countries，" Guthold told Reuters Health. "Growing up in a poor country does not necessarily mean that kids get more physical activity."
   The study，published in The Journal of Pediatrics，looked at 72，845 schoolchildren aged 13 to 15 from Africa，North and South America，Asia，Europe，and the Middle East.
   The researchers defined enough physical activity as at least an hour of exercise outside of gym class at least five days a week.Children who spent three or more hours a day watching TV，playing computer games，or chatting with friends—aside from time in school or time spent doing homework—were considered assedentary .The researchers found only one quarter of the boys and 15 percent of the girls were getting enough exercise bythese definitions .A quarter of the boys and nearly 30 percent of the girls sat too much and didn't get enough exercise.
   Children in Myanmar were the least sedentary，with 13 percent of boys and 8 percent of girls classified as sedentary.
   Girls were less active than boys in every country except for Zambia.Uruguay had the highest percentage of active boys，at 42 percent，while Zambia had the lowest，at 8 percent.Girls from India were the most active，with 37 percent meeting exercise definitions，while girls from Egypt were the least active，with just 4 percent getting enough exercise.
   While the study didn't look at the reasons behind the lack of physical activity in various nations，Guthold guessed that urbanization （城市化） could be a factor as well as being able to use cars and TVs.She said schools can help children become more active by having physical education classes and educating students about the importance of exercise.

（1）What does the underlined word "sedentary" in paragraph 4 mean？

A．Addicted.
B．Flexible.
C．Inactive.
D．Unhealthy.
（2）What can we know from the study？

A．Boys from Uruguay were the most active.
B．Most girls from India got enough exercise.
C．Children in Europe get more physical activity.
D．Boys are more active than girls in every country.
（3）How does the writer present the findings of the study？

A．By using quotations and taking examples.
B．By listing figures and making comparisons.
C．By asking questions and providing answers.
D．By presenting facts and drawing conclusions.
（4）Which of the following factors probably lead to children's lack of physical activity？

A．Computers and potatoes.
B．Computers and urbanization.
C．Urbanization and physical education.
D．Physical education and homework.
發(fā)布：2024/11/1 19:0:1組卷：15引用：4難度：0.5
解析
2．How good are you at maths？Some people love the challenge of algebra（代數(shù)）or enjoy working out number puzzles.Maths is all around us，from working out how to share the bill after a meal，to calculating your family bills.But many are afraid of the moment when they have to deal with numbers and figures and feel a real sense of worry and confusion.It can seem frightening，but this maths anxiety is perfectly normal，and you're definitely not alone.And anyway，our worries and fears don't necessarily reflect our ability.
   The problem really starts in childhood，at school.Research has found that maths teachers who are nervous about teaching the subject can pass on their anxiety to the pupils，and girls may be more likely to be affected.The Programme for International Student Assessment found around 31% of 15—and 16—year—olds across 34 countries said they got very nervous doing maths problems，33% said they got tense doing maths homework，and nearly 60% said they worried that maths classes would be difficult.Shulamit Kahn，a professor from Boston University，believes that giving students，particularly girls，good role models is critical，especially at a young age.She thinks the key is to get people，especially women who love maths，to teach younger children
   Writing for the BBC，David Robson says， "It's not clear why maths causes so much fear compared to geography.But the fact that there's no room for playing tricks might make you more worried about underperforming." And once we assume that we're not a maths person，we avoid solving things that we probably could do.
   Psychologists have been trying to work out why mental arithmetic（心算）can bring us out in a sweat.That seed of fear may come from many sources，but some suggest that voicing your fears can loosen their control over you.They also suggest encouraging children to see a maths test as a challenge，not a threat.Most importantly，we need to think positively about maths and give it a second chance.

（1）What is the author's understanding of maths anxiety in paragraph 1？

A．It happens when you have to pay bills after a meal.
B．It actually reflects one's poor performance in maths.
C．Only students often suffer from this sense of worry.
D．People normally have it when dealing with numbers.
（2）What may cause students' maths anxiety according to the research？

A．The particular feature of maths.
B．The fear of failure in maths tests.
C．Students' dislike of learning maths.
D．Maths teachers' lack of confidence.
（3）What can we infer from David Robson's words？

A．Geography seldom causes worry.
B．Slow students have maths anxiety.
C．Dishonesty is difficult in maths tests.
D．Maths students like number puzzles.
（4）What is the best way to get over maths anxiety？

A．Speaking out your fears in public.
B．Employing female maths teachers.
C．Having a positive attitude to maths.
D．Viewing maths tests as a challenge.
發(fā)布：2024/11/5 0:30:7組卷：24引用：7難度：0.5
解析
3．As the concept of emotional intelligence （EI） has gone global，we've watched professionals fail as they try to improve their emotional intelligence because they either don't know where to focus their efforts or they haven't understood how to improve these skills on a practical level.In our work consulting with companies and coaching leaders，we have found that if you're looking to develop particular EI strengths，it helps to consider areas for improvement others have identified along with the goals you want to achieve，and then to actively build habits in those areas rather than simply relying on understanding them conceptually.
   The first step is to get a sense of how your self-perception （how you see yourself） differs from your reputation （how others see you）；（1）

.For example，most of us think that we're good listeners，but very often that's really not the case.Without this external reality check，it will be difficult for you to identify the ways that your actions affect your performance.Getting feedback from others can also provide proof of the necessity of shifting our behaviour and motivation to do so.
   To give you the best sense of where the differences lie between your self-perception and reputation，you should use a 360-degree feedback assessment that takes into account the multiple facets of EI；（2）

.Secondly，when you get your feedback from an assessment，let that inform what you want to improve.But also consider what your goals are.When it comes to cultivating strengths in emotional intelligence，（3）

.Your emotional intelligence is so tied up in your sense of self that being intrinsically motivated to make the effort matters more when changing long-standing habits than it does when simply learning a skill.
   That means the areas that you choose to actively work on should lie at the crossroads of the feedback you've gotten and the areas that are most important to your own aspirations；（4）

as you do the work of strengthening your emotional intelligence.
   Once you've determined which EI skills you want to focus on，identify specific actions that you'll take.If you're working on becoming a better listener，for example，you might decide that when you're conversing with someone you'll take the time to pause，listen to what they have to say，and check that you understand before you reply.Keep it specific；（5）

.
   By starting to change your routine reactions，you'll be well on your way to figuring out the old habits that aren't serving you well and transforming them into new，improved ones that do.

A.you're at a huge disadvantage if you're only interested because others said you should be
B.bearing your goals in mind is so helpful to improve the positive impact of your current EI habits
C.you should also lake every opportunity to practice the skill you are developing，no matter how small
D.understanding the impacts of your EI habits relative to your goals will keep you going over the long run
AB.the key is to find one that guarantees no personal information of those giving you feedback will be leaked
AC.how others see you will to some extent decide how you see others and help you become a good listener
AD.this is true because we can be blind to how we express and read the emotional components of our interactions
發(fā)布：2024/10/31 8:1:18組卷：59引用：2難度：0.1
解析

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