题目
题型:不详难度:来源:
But things are changing. High costs, unusual educational needs and long start-up times are no longer an obstacle(障碍) to space exploration. The scientists have developed a new type of tiny, inexpensive earth-orbiting(轨道) satellite.
So far, college students have built and launched(发射) several cube-shaped satellites, or CubeSats. At least 15 more are ready to go. Those already in orbit take pictures, collect information and send it back to the earth, just as regular satellites do.
But you might not even have to wait until you get to college to start designing and building your own satellite. A new program called KatySat aims to get teenagers to take part in. When kids understand what satellites can do, the kinds of ideas they’ll come up with may be countless.
Education isn’t the only aim of CubeSats because these tiny, technology-filled boxes are inexpensive to build and can be put together quickly, they’re perfect for testing new technologies that might one day be used on major space tasks.
The biggest challenge now is to find ways to bring the satellites back to the earth after a year or two. Or space junk could gradually increase because CubeSats become more popular.
Nowadays, college and high school students are getting a chance to learn what it takes to explore in space. Someday—perhaps a lot sooner that you imaging—you might get to design, build and launch your own satellite. If you do, you’re sure to have fun. And you might also get crazy about science for life.
小题1:Building a traditional satellite __________.
A. costs $250,000
B. needs college students
C. takes quite a long time
小题2:Compared with the traditional ones, the new satellites __________.
A. need long start-up times
B. are cheap and small-sized
C. collect more junk in orbit
小题3:The underlined word “countless” in Paragraph 4 probably means “__________”.
A. 无用的 B. 无价值的 C. 无数的
小题4:According to the passage, which of the following is true?
A. CubeSats could possibly cause pollution in space.
B. Scientists designed CubeSats for kids to play with.
C. Students can’t design satellites without college education.
小题5:The purpose of the author writing the passage is __________.
A. to tell us that satellite technology can also be learned by kids
B. to show that high technology brings a big change in kids’ life
C. to tell us that kids must study hard to learn satellite technology
答案
小题1:C
小题2:B
小题3:C
小题4:A
小题5:A
解析
试题分析:本文介绍的是新型的卫星,它比传统卫星的造价低,省时,省钱。但是由于太空垃圾越来越多,可能对环境造成影响,这项技术也会在学校被学生们所学习。
小题1:细节理解题。根据原文Building a traditional satellite usually takes years.可知建造一个传统的卫星要花费好多年,故选C。
小题2:细节理解题。根据原文The scientists have developed a new type of tiny, inexpensive earth-orbiting(轨道) satellite.可知新的卫星即便宜有迷你。故选B。
小题3:细节理解题。countless意为“无数的”,故选C。
小题4:细节理解题。根据原文Or space junk could gradually increase because CubeSats become more popular.空间垃圾可能会增加。故选A。
小题5:细节理解题。根据原文Nowadays, college and high school students are getting a chance to learn可知这项技术在学校也可以被孩子们所学习。故选A。
核心考点
试题【As we know, it is not easy to build a satellite(卫星). Building a traditional sate】;主要考察你对科普环保类等知识点的理解。[详细]
举一反三
Tea mainly in the area south of the Yangtze River, in the provinces of Zhejiang, Jiangxi and Fujian, because of the good and rich soil there. Longjing, Wulong, Pu’er and Tieguanyin are all kinds of tea.
Over the past centuries, Chinese people have their unique tea culture, which includes tea planting, tea-leaf picking, tea making, and tea drinking and so on. Tea as well as coffee a popular topic which is often mentioned in dances, songs, poems and novels.
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As the world’s least-known place, Antarctica is of great interest to scientists around the world. In 1983, China joined the Antarctic Treaty (《南极条约》). The treaty made Antarctica a peaceful place for member countries to do scientific research. During 30 years, China has sent many scientists to Antarctica. They mostly look at the resources under the icy land and do research about climate change and marine (海洋的) biology.
Antarctica is a place with fantastic views. However, life there is very hard. Food is one of the biggest problems. Frozen (速冻) food which can be heated easily is people’s daily food. Fresh vegetables are hard to grow in the cold weather. Therefore, scientists often eat dried or canned vegetables.
Sleep is also troublesome. In Antarctica, summer lasts from November to March. During this period, Antarctica points to the sun and receives sunlight 24 hours a day. In order to get some sleep, scientists cover the windows with black plastic cloth to create “night”.
Working in Antarctica is dangerous, especially when meeting gale-force (七级以上的) winds. Sometimes the wind is even stronger than a typhoon. It can easily blow people away. So there are ropes that connect buildings of some research stations. People can hold these ropes to keep their balance in forceful winds.
What’s more, communicating with others is difficult. Without cables and Internet in some research stations, two-way radios are the only tools to communicate. If people want to say hello to friends and relatives, they can use satellite phones.
Although it is challenging to work in Antarctica, scientists’ passion to learn about this mysterious land will never end. It is hopeful that one day they will step every corner of this icy land.
小题1:From Paragraph 1, we learn that the Antarctica ______.
A.is covered with snow and ice |
B.rains heavily from time to time |
C.has little wind most of the time |
D.has sunshine during every night |
A.find out ways to control water pollution |
B.research climate change and marine biology |
C.grow plants and vegetables in special condition |
D.stop the hunters from killing the marine biology |
A.wear more clothes to keep warm |
B.cover the windows with black cloth |
C.connect research stations with ropes |
D.eat more fried and canned vegetables |
A.strong love |
B.full preparation |
C.pleasant introduction |
D.amazing imagination |
A.view of the Antarctica |
B.exploring the Antarctica |
C.how to survive in the Antarctica |
D.climate changes of the Antarctica |
To use your dictionary correctly, you need to understand how the dictionary works. At the front of the book, you will find some exercises to help you make the most use of your dictionary.
If you look up the word “colour”, you will find two spellings for this word. “Colour” is used in British English, while “color” is used in American English. When such a thing happens, the dictionary shows it with the word “BrE” for British English and “AmE” for American English.
The dictionary also helps you pronounce words correctly. It uses a special alphabet (特殊字母表) to show pronunciation. If you turn to the inside back face, you will see all the phonetic letters (音标) with some words to show you how they are pronounced. Just have a look at this page when you’re not sure how to say a word.
The most important reason for using a dictionary is to find out the meaning of a word—its DEFINITION.
In this dictionary, the definitions have been written using only 2000 words. This means that the definitions of even the most difficult words are simply explained and easy to understand.
小题1:According to the passage, “neighbor” is used in ______ English.
A.Australian | B.Canadian | C.American | D.British |
A.词性 | B.词条 | C.词库 | D.词义 |
A.some of the difficult words | B.all the words in a simple way |
C.all the easy words | D.the words of two meanings |
Fathers who value (重视) education have children who do better in school than those children whose fathers don’t value education. What’s more, fathers who spend quality time with their children may give their children happy memories which may last a lifetime.
While each father is a unique person who educates children in his own style, good fathers have something in common.
Good fathers attend their children’s school activities. They also involve the children in their lives and the adult world by taking them to see the workplace, or by taking them when the car needs to be repaired, etc.
Good fathers expect a great deal from their children, but also accept and support the unique individuals (个体) that their children are becoming.
Good fathers prefer explanations and reasoning to force.
Good fathers know their time with children is really an investment (投资) in them.
Being an involved father is good for children and good for fathers. Both children and fathers have the chance for growth and development. Today’s lifestyles are changing. More and more fathers are keeping a balance between their personal life, work, and family time.
小题1:According to the passage, we can find that .
A.fathers have an important influence on their children from babyhood through adulthood |
B.fathers’ involvement (介入) is the most important in children’s development |
C.all fathers have the same way of educating their children |
D.fathers are more important than mothers in the family |
A.has the same ideas as others |
B.is the only one of his type |
C.does everything without considering others’ ideas |
D.tries to do everything well |
A.Good fathers attend their children’s school activities but never take them to their workplace. |
B.Good fathers expect a great deal from their children and force them to work hard. |
C.Good fathers try to make it clear to their children that staying with their fathers is an investment. |
D.Good fathers improve themselves when they spend time with their children. |
A.how to be a qualified father |
B.the growth and development of both fathers and children |
C.the father’s role in the growth and development of children |
D.the change of the father’s role in modern society |
Recently, two scientists, Jose Millan and Michele Tavella from the Federal Polytehnic School in Lausanne, Switzerland, show a small robotic wheelchair directed by a person’s thoughts.
In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right hand. He could even talk as he watched the vehicle and guided it with his thoughts.
“Our brain has billions of body cells(细胞). These send signals through the spinal cord(脊髓) to the body part to give us the ability to move. But spinal cord injuries(脊柱受伤) or other conditions can prevent these weak electrical signals from reaching the body part.” Tavella says. “Our system allows disabled people to communicate with outer world and also to control machines.”
The scientists designed a special cap for the user. This head cover picks up the signals from the scalp(头皮) and sends them to a computer. The computer finds meanings of the signals and commands the wheelchair with an engine. The wheelchair also has two cameras that tell objects in its path. They help the computer react to commands from the brain.
Prof. Millan , the team leader, says scientists keep improving the computer software that finds meanings of brain signals and turns them into simple commands.” The practical possibilities that BCI technology offers to disabled people can be grouped in two kinds: communication, and controlling objects. One example is this wheelchair.”
He says his team has set two goals. One is testing with real patients, so as to prove that this is a technology they can get advantages from. And the other is sure that they can use the technology for long.
小题1:BCI is a technology that can________.
A.help to make computer systems more modern |
B.connect the human brain with computers |
C.help the disabled to be healthier |
D.control a person’s thoughts |
A.scalp→computer→cap→wheelchair |
B.computer→cap→scalp→wheelchair |
C.scalp→cap→computer→wheelchair |
D.cap→computer→scalp→wheelchair |
A.make money from them |
B.prove the technology useful to them |
C.make them live longer |
D.learn about their physical condition |
A.Switzerland, the BCI research Center |
B.New Findings About How the Human Brain Works |
C.BCI Could Mean More Freedom for the Disabled |
D.Robotic Vehicles Could Help to Cure Brain Sickness |
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