Computer technology is still developing rapidly. The computer of the future will continue to increase in value and performance while decreasing in cost. It will become smaller, but faster and more powerful.
It is possible to make some guesses about what the future of the computer will look like, based upon the types of technologies that are being developed now. A lot of progress has already been made in some of these new technologies, but some are still in their earliest stages and may not be ready for use for years. Two of the most interesting areas of computing that are currently being developed are quantum computing (量子计算) and nanotechnology (纳米技术).
Quantum computing is one possibility for the future of the computer that could make computers run far faster than even the quickest computers do today. Quantum computers could be able to do what modern supercomputers are unable to do by using transistors that are able to take on many states at the same time.
Nanotechnology could also change the face of computing, by creating computers that could be very powerful, though they are tiny in size. These computers could be incorporated (并入) into everyday objects, including electrical appliances (电器), clothes and even the human body. We will be able to use computers in new and unimaginable ways. They will become a part of our lives rather than simply being a box that is used only for specific purposes, such as work.
Quantum computing and nanotechnology will be able to play new roles, which will make us live greener lives, as well as enjoy better health and happier lives.Which of the following can NOT describe the computer of the future properly?
A.Much smaller. |
B.Much faster. |
C.More powerful. |
D.Less valuable. |
According to the text, quantum computing _____.
A.has been put in use so far |
B.can make computers run by themselves |
C.can reduce the cost of computers |
D.will work by using transistors |
We can learn from the text that nanotechnology will _____.
A.create much smaller computers |
B.be used in electrical appliances and clothing |
C.change the structure of computers |
D.make computers just serve specific purposes |
The text is mainly about _____.
A.what nanotechnology is |
B.what quantum computing is |
C.what the future of the computer is |
D.what future computers can bring us |
A primary school in UK has banned Valentine’s Day cards because of concerns that young pupils spend too much time talking about boyfriends and girlfriends.
Ashcombe Primary School in WestonSuperMare,Somerset,has told parents that cards declaring love can be“confusing” for children under the age of 11,who are still emotionally and socially developing. In this month’s newsletter(通讯),Peter Turner,the head teacher,warned that any cards found in school would be confiscated(没收).He wrote:“We do not wish to see any Valentine’s Day cards in school this year. Some children and parents encourage a lot of talk about boyfriends and girlfriends. We believe that such ideas should wait until children are mature enough emotionally and socially to understand the commitment involved in having or being a boyfriend or girlfriend.”Mr.Turner said any families wanting to support the Valentine’s Day idea should send cards in the post or deliver them to home addresses by hand.
His views were endorsed by Ruth Rice,46,who has twins Harriet and Olivia at the school. She said,“Children at that age shouldn’t really be thinking about Valentine’s Day,they should be concentrating on their schoolwork.”They are at an age when they are impressionable(易受影响的)and most parents including myself are with Mr.Turner. “She added that the cards cause” too much competition. If someone gets a card and another doesn’t,then someone will be disappointed.
However,Rajeev Takyar,40,who has two children Jai,11,and Aryan,five,at the school,said he was “outraged”.He said,“There are schools that have banned conkers(栗子游戏)and snowballs,and now Valentine’s Cards.”I think banning the cards stops children from having social skills. How are they going to learn about relationships otherwise?It’s ridiculous. Alec Suttenwood,father of three children,said of the ban:“It’s totally ridiculous. Young children just send the cards to each other as friends and to their parents. It’s just a bit of harmless fun. There is no difference between this and Mother’s or Father’s Day.”Which of the following is the best title?
A.Ban on Valentine’s Day cards at school is well received. |
B.Ban on Valentine’s Day cards at school causes argument. |
C.British children spend too much time talking about love. |
D.A British high school bans Valentine’s Day cards. |
The underlined word “endorsed” means________.
A.criticized | B.quoted |
C.disapproved | D.approved |
What do you know about Harriet and Olivia?
A.They will send Valentine’s Day cards this year. |
B.They are strongly against the school’s decision. |
C.They are of the same age. |
D.They are the children of Rajeev Takyar. |
According to Rajeev Takyar,________.
A.sending Valentine’s Day cards helps develop children’s social skills |
B.banning Valentine’s Day cards will benefit children |
C.the cards cause too much competition among children |
D.children are too young to talk about love |
The newsletter by Peter Turner probably appeared on________.
A.February 22 | B.February 6 |
C.March 18 | D.August 1 |
Scientists in Mexico have just begun a new study of one of the world’s biggest pyramids: the Pyramid of the Sun, north of Mexico City. They’re putting lots of small, high-tech machines under the pyramid to try to unlock some of its secrets. For thousands of years, people have tried to uncover the secrets of the pyramids.
The people who built the pyramids made lots of secret doors and rooms to stop robbers from finding the treasures inside. However, there always have been some smart thieves in history. Now, almost all of Egypt’s pyramids have been robbed, including the Great Pyramid of Khufu, which is the largest pyramid in the world. It is the only one of the ancient wonders of the world that is still standing.
In AD 820, an Arab king named Abdullah AL Manum got a group of workers to dig their way into the Great Pyramid and have a look. Inside the pyramid, they found three rooms—the Queen’s Chamber, the Grand Gallery and the King’s Chamber. But to their surprise, the men didn’t find the treasures they wanted. The Queen’s and King’s Chambers were both empty! Where were the King’s mummy and his treasures? Had someone already taken them away? The huge stone doors at the pyramid’s entrance were still closed when AL Manum’s men went inside. How had the thieves got in and out?
Since then, many people have gone inside the Great Pyramid to have a look or to try to take things. But still, no other chambers or walkways have been found.
In 2002, an American team made the most recent visit to the Great Pyramid. Scientists sent a robot into the pyramid, but they only found a mysterious locked stone door.The first two paragraphs were written to show that ____.
A.ancient Egyptian emperors were cruel |
B.the Pyramid of the Sun is an unusual historic building |
C.construction workers led a hard life in ancient Egypt |
D.the secrets of the pyramids remain to be uncovered |
What is the purpose of making some secret doors to the pyramids? _______.
A.To try to unlock some of its secrets |
B.To stop robbers from finding the treasures inside |
C.To refuse some visitors all over the world into it |
D.To tell the truth to the people in the future |
Which of the following is NOT true to the Great Pyramid of Khufu?
A.It is the largest pyramid in the world. |
B.It is the only one of the ancient wonders that is still standing. |
C.Abdullah AL Manum took the King’s mummy and his treasures away. |
D.Scientists found a mysterious locked stone door to the Great Pyramid. |
What would be the best title for the text?
A.The Pyramid of the Sun |
B.The Great Pyramid of Khufu |
C.A Mysterious Locked Stone Door |
D.Unlocking the Doors of History of the Pyramid |
Talking plants might sound like characters in a fairy tale. But recent scientific studies have shown that plants communicate with each other and with other living things in a surprising number of ways. To understand them, scientists say, we just have to learn their language. Farmers are especially interested in what plants have to say.
“Plants are able to communicate with all sorts of organisms (有机体). They can communicate with giant bacteria, with other plants and with insects. They do this chemically,” said Cahill, an Ecology Professor of the University of Alberta in Canada.
Plant scientists are just beginning to understand this chemical “language”. Cahill says studies have shown, for example, that plants can evaluate (评估) conditions in their immediate environment and take appropriate actions. Plants have an ability, for example, to signal pain or discomfort caused by anything from temperature extremes to an insect attack. Jack Schultz, a professor of chemical ecology at the University of Missouri, says when a plant senses that it's being eaten, it cannot walk away from trouble; on the contrary, it will release a chemical vapor(蒸汽) that alerts other plants nearby.
“Their language is a chemical language, and it involves chemicals that move through the air that are easy to be changeable, and most of all are smells that we are familiar with,” Schultz explained.
“All plants responded to the attack by changing their chemistry to defend themselves,” Schultz recalled. “But we were quite surprised to find that nearby plants also changed their chemistry to defend themselves, even though they were not part of the experiment.”
Studies have also shown that plants under attack release pleasant chemicals. Those chemicals attract friendly insects that attack the pests eating the plant.
In the end, plants' ability to communicate their needs—and our ability to understand them—could help farmers reduce the use of poisonous chemicals, cut operating costs and limit damage to the environment.The recent scientific studies have shown that plants can ______.
A.communicate with other living things in a chemical way |
B.hardly react to any sudden change in temperature |
C.use a very special chemica1 language which is familiar to us |
D.respond to the attack by giving off poisonous chemicals |
When being eaten by an insect, the plant will ________.
A.walk away from trouble |
B.change its chemistry to kill the insect |
C.release a chemical vapor to “ask” other plants for help |
D.give off nice chemicals to attract friendly insects killing the pest |
The underlined word “alert” most probably means “______”.
A.warn | B.protect |
C.threaten | D.allow |
Which would be the best title for the passage?
A.Communication between Plants |
B.A Chemical “Language” |
C.Plants Can Talk |
D.How Plants Protect Themselves |
Whether you're having problems with your homework or you’re preparing for your term paper, these student-focused websites can help you with anything you need. The key to getting the most out of these online resources is to know how they can best be used to your advantage.
♦ Facebook
Although Facebook can be one of your biggest time-wasters and distractions(干扰)when you are supposed to be getting work done, it can also be one of your most valuable resources. Most of your classmates will probably have a Facebook account, so anyone you need to connect with about a class you missed or about a problem is usually just a few clicks away.
♦ SparkNotes
With a free library of history timeline, philosophy study guides and library summaries, and essays, SparkNotes has covered just about any reading-related jam you find yourself in, just run a search for the book, play, or short summary of the material you are supposed to read.
♦ Amazon.com
Do you finish every term with many expensive textbooks you will never open again? Instead of letting the money spent go to waste, get back some of your cash by selling your books on Amazon.
♦Wikipedia
While Wikipedia isn't aimed specifically at students, it is difficult to think of another website that does more to reduce the pain of paper writing and researching. Wikipcdia gives you a quick way to find sources and get the details of almost any topic you need to research——-all without walking to the library.The passage was mainly written to _____.
A.explain some websites for parents |
B.compare some educational websites |
C.introduce different parts of a website |
D.offer some websites that may help students |
While you are taking great pains to write a research report, _____can most probably be a help.
A.Facebook | B.SparkNotes |
C.Amazon.coin | D.Wikipedia |
Which of the following will you most probably refer to, if you need brief ideas for class discussion in reading?
A.Wikipedia. | B.Facebook. |
C.SparkNotes. | D.Amazon.com. |
A teenager realized her dream of becoming a professional model three years after a serious car accident.
Marita Davies was on her way home from a party when the crash happened. The car that Marita took as a passenger was going the wrong way and crashed into another car driven by a drunken driver named David Hudson, which left her with a broken leg and back. It took the firefighters more than two hours to free the teenager from the damaged car before she was taken to hospital. Marita was in a wheelchair for a year after being bed-ridden for nine months.
Marita feared her dream of a modeling career was over. She said, “I was extremely upset and shocked when I knew about my terrible injuries. I thought my dream of becoming a model was over. My leg and back were broken. The crash had broken my confidence and I became quiet and spent less time with other people. I was 16, and at that age all I wanted to do was to go out with my friends.”
But as her health took a turn for the better, Marita finally came out of the wheelchair and learned to walk. She decided she would still try to follow her dreams, and sent some photos off to some modeling agencies. She did a few unpaid jobs while studying at college. Soon, paid commercial modeling jobs started coming in. Marita was a bit doubtful at first, because the crash had left her with huge scars on her leg and back. She was worried that people wouldn’t want her to model for them, but this didn’t stop her.
Marita had done amazingly well to overcome everything that had been thrown at her in the three years. Finally, Marita became a professional model in 2013. She was signed up for advertising campaigns and appeared in TV ads. When did the accident happen?
A.In 2008. | B.In 2009. |
C.In 2010. | D.In 2011. |
Who should be to blame for the accident?
A.Marita Davies. |
B.David Hudson. |
C.The driver of the car that Marita took. |
D.Both of the drivers involved in the accident. |
How did Marita feel when modeling jobs became available to her?
A.Lucky. | B.Satisfied. |
C.Surprised. | D.Unconfident. |
The passage is intended to ______.
A.prove modeling is a promising career. |
B.warn people not to drive after drinking |
C.suggest having a dream is a good thing |
D.praise Marita’s spirits to overcome difficulties |