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Dirty, dangerous and dull. These are three words you do not want to use to describe your job. While many jobs are a little dirty, dangerous or dull, some are so much so that it is better not to have humans performing them at all. Would you want to be the first person to go into a building on fire?1.This is already happening all around the world. There are millions of robots at work today.
The most common type of robotic device is a mechanical arm. This is often used in manufacturing.2.But robots have moved well beyond such simple tasks. A robot named Demeter is an agricultural harvester that can move around a field of crops, planting and harvesting by using GPS, controllers and sensors (传感器).
Some robots are programmed to do certain jobs, but others are remotely operated vehicles(ROVs).3.The US space agency NASA has used ROVs to explore the surface of the moon and Mars. ROVs are also used in underwater environments.
What do regular people want from robots? Some people would like robots to perform tasks around the house. One home robot on the market now is Roomba, a turtle-shaped robot that slowly vacuums (用真空吸尘器打扫) its way around the room.4.A robot that washes the windows and does the dishes could make a small fortune!
5.. Surely they will continue to explore the ocean, analyze the surface of distance planets, and build our cars and computers. But what else? Will more robots drive our cars for us? Will they do our laundry? Will they do our gardening? Perhaps. When someone invents that window-cleaning robot, they will be rewarded by a grateful population.
A. What if a robot could assess and fix the situation?
B. Robots will play a more important role in the future.
C. It senses walls and turns to avoid stairs and objects on the floor
D. They are also used to gather information on geographical changes in volcanoes.
E. They can perform maintenance (保持) on oil drilling platforms and explore the ocean floors.
F. These arms move in many directions and perform precise and repetitive tasks with ease.
G. ROVs can have cameras, sensors and other devices that provide hard-to-obtain information.
高三英语七选五简单题查看答案及解析
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Wild weather, unexpected coral reefs and dangerous sea creatures… these are the nightmares (噩梦) you can imagine a teenager on a solo voyage (独自旅行) around the world might suffer from. But for Laura Dekker, sailing around the globe seems less a price to be paid than a prize to be treasured.
As the 19-year-old Dutch sailor said in Maidentrip, a documentary（纪录影片） released last year about her experience of becoming the youngest person to sail around the world alone in 2012, “I was born on a boat. I lived my first five years at sea. And ever since, all I have wanted is to return to that life.”
With her yacht(游艇) Guppy, Dekker began her journey at 14 and sailed 50,004 kilometers in 519 days.
The flying fish keeping her company, the dolphins following in her wake and the warm days spent on deck playing the flute (长笛) as she watched another unforgettable sunset were enough to make others jealous.
But these didn’t always go well. There were terrible moments in which Dekker feared death. On one occasion, a whale almost turned Guppy over. Another time, she battled extreme winds and Guppy surfed down 8-meter-high waves.
Out on the open sea alone, she also got used to living without a fridge, a flushing（用水冲洗） toilet, and a hot shower.
“As a human being you don’t need much,” she told Stuff.co.nz. “ They might make life more comfortable, but you really don’t need them to be happy.”
In fact, her outlook on life was shaped by the trip. “I wanted the storms. I wanted the calms. I wanted to feel loneliness,” she told The New York Times. “And now I know all these things. It’s the end of the dream I had as a child, and it’s the beginning of my life as a sailor.”
1.According to the text, in which year did Dekker begin her journey of 50,004 kilometers at sea?
A. In 2012 B. In 2010 C. In 2009 D. In 2011
2. The method the author uses to develop Paragraph 5 is ________.
A. offering analyses B. providing explanations
C. giving examples D. making comparisons
3.Which of the following can best describe the girl Laura Dekker? _________.
A. Modest and optimistic
B. Patient and hospitable
C. Brave and generous
D. Brave and determined
4. How did Laura Dekker think of her life on the sea?
A. It was so dangerous and almost ruined her.
B. It brought her great happiness and much comfort.
C. It is the sailing on the sea that made her well known.
D. Full of danger and challenge, it made her experience happiness and better understand life as well.
高三英语阅读理解中等难度题查看答案及解析
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Wild weather, unexpected coral reefs and dangerous sea creatures… these are the nightmares (噩梦) you can imagine a teenager on a solo voyage (独自旅行) around the world might suffer from. But for Laura Dekker, sailing around the globe seems less a price to be paid than a prize to be treasured.
As the 19-year-old Dutch sailor said in Maidentrip, a documentary released last year about her experience of becoming the youngest person to sail around the world alone in 2012, “I was born on a boat. I lived my first five years at sea. And ever since, all I have wanted is to return to that life.”
With her yacht Guppy, Dekker began her journey at 14 and sailed 50,004 kilometers in 519 days.
The flying fish keeping her company, the dolphins following in her wake and the warm days spent on deck playing the flute as she watched another unforgettable sunset were enough to make others jealous.
But these didn’t always go well. There were terrible moments in which Dekker feared death. On one occasion, a whale almost turned Guppy over. Another time, she battled extreme winds and Guppy surfed down 8-meter-high waves.
Out on the open sea alone, she also got used to living without a fridge, a flushing toilet, and a hot shower.
“As a human being you don’t need much,” she told Stuff.co.nz. “ They might make life more comfortable, but you really don’t need them to be happy.”
In fact, her outlook on life was shaped by the trip. “I wanted the storms. I wanted the calms. I wanted to feel loneliness,” she told The New York Times. “And now I know all these things. It’s the end of the dream I had as a child, and it’s the beginning of my life as a sailor.”
1.According to the text, in which year did Dekker begin her journey of 50,004 kilometers at sea?
A. In 2012 B. In 2010
C. In 2009 D. In 2011
2.The method the author uses to develop Paragraph 5 is ________.
A. offering analyses B. providing explanations
C. giving examples D. making comparisons
3.Which of the following can best describe the girl Laura Dekker? _________.
A. Modest and optimistic B. Patient and strong
C. Brave and generous D. Brave and determined
4. How did Laura Dekker think of her life on the sea?
A. It was so dangerous and almost ruined her.
B. It made her experience happiness and better understand life.
C. It is the sailing on the sea that made her well known.
D. It brought her great happiness and much comfort.
高三英语阅读理解中等难度题查看答案及解析
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Whether or not your mouth is moving right now, you are talking to yourself. As you read these words, your facial muscles are having quick, invisible movements, sounding out the words so you can actually hear them in your head. This kind of speech is called "subvocalization", and unless you're a speed-reader who has trained yourself out of this habit, you're doing it every time you read or even imagine a word.
Now, MIT researchers want to use those subvocalization to know what's in your mind and translate it into digital orders, using a wearable smart headset called AlterEgo. The headset combines human and machine in some ways.
According to the MIT Media Lab, the device would allow users to send silent orders to the headset simply by thinking of a word. A neural (神经的) network would translate the muscle movements to speech and do the user's orders—totally hands-and-voice-free. Let's say you want to ask AlterEgo what time it is. First, you think the word "time". As you do, your facial muscles make micro-movements to sound out the word in your head. Electrodes(电极) on the headset record these movements and then send them to a computer. The neural network processes these signals the same way a speech-to-text program might, and responds by telling you the time.
In a small study, 10 volunteers read a list of numbers to themselves while wearing AlterEgo headsets. AlterEgo correctly got which numbers the participants were reading with an average accuracy of 92 percent. For comparison, Google's microphone-based speech-to-text translation service has an accuracy of about 95 percent.
“We basically can’t live without our digital devices,” said Pattie Maes, an MIT professor. "But at the moment, the use of those devices is causing some problems in our life. My students and I have been experimenting with new types of experience that enable people to still benefit from all the wonderful knowledge and services that these devices provide but do it in a way that lets them remain in the present.”
1.We can learn from the first paragraph that “ subvocalization” _______.
A. is less used in life now
B. is more effective than speed reading
C. refers to a silent way of reading something
D. means reading something in a detailed way
2.What does Paragraph 3 mainly talk about?
A. How AlterEgo works.
B. The production of AlterEgo.
C. The disadvantages of AlterEgo.
D. How to wear AlterEgo correctly.
3.The test in Paragraph 4 suggests that AlterEgo _______.
A. has good working performance
B. has become a popular digital product
C. works better than Googles similar service
D. is unable to complete complex tasks at present
高三英语阅读理解中等难度题查看答案及解析
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Write NO MORE THAN THREE WORDS for each answer.
Not all print dictionaries are the same, as you will notice when you select one. To make a wise selection, you should know how to distinguish among three kinds of print dictionaries: pocket, desk, and unabridged. You should also know the copyright date of your dictionary, and check is special features.
A pocket dictionary is small. Generally, it contains no more than 75000 entries, making it hardly to carry to class and efficient to use. However, a pocket dictionary doesn't contain enough entries to be adequate for college reference homework. In addition, the information about each word in a pocket dictionary is generally limited. A desk dictionary is medium sized, generally containing over 100,000 entries as well as extra features. For college work, you should own a current desk dictionary. An unabridged dictionary is a complete dictionary. Abridged dictionaries, such as pocket and desk dictionaries, are shortened. Because unabridged dictionaries contain nearly all English words, they are large and heavy. They are often used by schools and libraries.
If the copyright date of your current dictionary shows that it was published five or more years ago, consider investing in a more recent edition. English is a dynamic language that admits new words and recognizes changes in meaning, spelling, and usage of familiar words. This is reflected in an up-to-date dictionary.
In selecting a dictionary, check the features it offers besides vocabulary definitions. Many editions contain signs, symbols and foreign words. Some also contain CD-ROMs and access to special online features.
高三英语其他题中等难度题查看答案及解析
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Are you nervous about climbing because you think it's too dangerous? Do you feel you're not fit enough to climb? Do you know how to start climbing?
Let's consider the idea that climbing is dangerous．Being afraid is natural, but if you use suitable ropes and other climbing equipments you will feel completely safe．Climbers are usually very careful because they know what they are doing is dangerous．Accidents happen, but when they do, they tend to attract a lot of publicity．As a result, people think there are many more accidents than there are in reality．
You cannot expect to start climbing straight away．Climbing is a challenge and challenges take time．It is necessary first of all that you achieve a good level of fitness．Begin as soon as you become interested in climbing? go to the gym, go swimming, take up jogging and continue to do so throughout your training period．
Discover as much as you can about climbing．Visit the library and find book, especially for beginners or buy climbing magazines and look for articles which describe your situation．Look up information on the Internet．Find out about equipment, methods and places to go．
Next, take a course on a climbing wall．There are plenty of climbing walls all over the country which have trained and qualified people as instructors．Call your local leisure centre to find out if there is one in your area. These training sessions are a quick way to get experience and you are likely to meet other beginners. After this, you can do an outside course of join a club where you can meet climbers of all abilities and eventually join in group-climbing events.
At first you may not understand the importance of a good training period, but after you have completed your first climb and you are standing safely at the top of a rock feeling thrilled, then you will know it was the right thing to do.
1.The article is written by________.
A．a doctor B．an experienced climber
C．a beginner D．a fitness instructor
2.The writer thinks a new climber should.
A．begin by becoming fit
B．have the courage to meet the challenges
C．be aware of the causes of the accidents
D．do enough sports to get interested in climbing
3.By climbing walls you can________.
A．join a club you like
B．gain controlled experience
C．become qualified instructors
D．take part in group-climbing events
4.The underlined word “it” in the last paragraph probably means________.
A．the climb B．the training C．the equipment D．the achievement
高三英语阅读理解简单题查看答案及解析
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“ Are you too stupid to do anything right？”These words—said by a woman to a little boy who was obviously her son—were spoken 21 he had walked away from her．They boy returned, his eyes down-cast.
Not a 22 moment, perhaps, 23 small moments sometimes last a very long time．And a few words—though they mean 24 at the time to the people who say them—can have great 25 .
I recently heard a story from a man named Malcolm Dalkoff．For the last 24 years he has been a professional 26 ．Here is what he told me:
As a boy in Rock Island, Dalkoff was terribly 27 ．He had few 28 and no self-confidence．One day, his English teacher, Ruth Brach, gave the class an assignment（作业）．The students had been reading To Kill a Mockingbird．Now they were to write their own chapter that would 29 the last chapter of the novel.
Dalkoff wrote his chapter and turned it 30 ．Today he can not recall anything 31
about the chapter he wrote, or what 32 Mrs．Branch gave him．What he does remember is the four words Mrs．Brach wrote in margin（空白处）of the paper：“This is 33 writing.”
Four words．They 34 his life.
“ 35 I read those words, I had no idea of who I was or 36 I was going to be.”he said.“After reading her note, I went home and wrote a short story, something I had always been 37 of doing but never believed I could do.”
Over the rest of that year in school, he wrote many short stories and always brought them to school for Mrs．Brach to evaluate．She was 38 , tough and honest.“She was just what I
39 .”Dalkoff said.
His confidence 40 ．Dalkoff believes that none of this would have happened if that woman had not written those four words in the margin of his paper.
1.A．where B．why C．because D．when
2.A．wonderful B．difficult C．funny D．big
3.A．yet B．although C．for D．therefore
4.A．much B．little C．more D．most
5.A．meaning B．power C．force D．sense
6.A．writer B．player C．poet D．singer
7.A．sorry B．proud C．sick D．shy
8.A．books B．ideas C．friends D．chances
9.A．follow B．match C．decide D．improve
10.A．on B．in C．out D．down
11.A．more B．again C．special D．different
12.A．honors B．remarks C．prizes D．grade
13.A．poor B．serious C．good D．silly
14.A．changed B．damaged C．affected D．improved
15.A．Unless B．Until C．When D．While
16.A．what B．how C．where D．which
17.A．tired B．fond C．proud D．dreaming
18.A．strict B．kind C．encouraging D．praising
19.A．feared B．needed C．expected D．loved
20.A．grew B．lifted C．appeared D．returned
高三英语完型填空中等难度题查看答案及解析
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—What do you think of the price of these computers?
—They are at least equal in price to, if not cheaper than, ________ in other companies.
A. it B. ones C. that D. the ones
高三英语单项填空中等难度题查看答案及解析
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--What do you think of the price of these computers?
--They are at least equal in price to, if not cheaper than, ____at the other companies.
A. it B. ones C．that D．the ones
高三英语单项填空中等难度题查看答案及解析
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— What do you think of the price of these computers?
— They are at least equal in price to, if not cheaper than, ____at the other companies.
A．it
B．ones
C．that
D．the ones
高三英语单项填空简单题查看答案及解析