The strong fear of high school math is lost here among the blue light of computer screens and the sounds of typing keyboard．
A fanfare （喇叭声） plays from a speaker as a student passes a chapter test．Nearby another student is watching a video lecture．Another works out a math problem in her notebook before clicking on a multiple-choice answer on her screen．
Their teacher at Agoura High School, US, Russell Stephans, sits at the back of the room, watching as scores pop up in real time on his computer grade sheet．One student has passed a level, the data shows; another is retaking a quiz．
"Whoever thought this up^makes life so much easier," Stephans says．
This textbook-free classroom is by no means the norm（常态）, but it may be someday．Slowly, but in increasing numbers, schools across the US are replacing the heavy and expensive textbook with its lighter and cheaper cousin: the digital textbook．
A digital textbook can be downloaded, projected and printed, and can range from simple text to a course filled with multimedia and links to Internet content．Some versions （版本） must be purchased; others are "open source" —free and available online to anyone．
Some praise the technology as a way to save schools' money, replace outdated books and better engage students．Others say most schools don't have the resources to join in, or they question the quality of open-source content．
Paper books still hold the highest percentage of the US textbook market, with digital textbooks making up less than 5 percent, according to analyst Kathy Mickey of Simba Information, a market research group．
But that is changing, as grade schools follow the lead of US liniversities and schools in other countries, including South Korea and Turkey．
California made the largest embrace （拥抱） of digital textbooks this summer when it approved 10 free high school math and science titles developed by college professors．The state left the choice to use them up to individual schools．
"The textbooks are outdated, as far as I'm concerned, and there's no reason why our schools should have our students pull around these old-fashioned and heavy and expensive books," Governor Arnold Schwarzenegger said this summer．
But some disagree with the idea that digital textbooks will improve education quality．
"Keep in mind that with open-source materials, you have to ask: 'Where are they coming from?'" said Jay Diskey, executive director of the Association of American Publishers' school division．"Is it a trusted source? Is it based on real research?"
Diskey said traditional textbooks offer a comprehensive course, while some open-source texts provide only bits and pieces．"There can be quite a difference of content and accuracy," he said．"In many cases, you get what you pay for．"
57．The writer's purpose in writing the passage is to .
A．explain how to use digital textbooks
B．predict the future of paper textbooks
C．describe the current use of digital textbooks and present arguments about it
D．explain the difference between paper textbooks and digital ones
58．What is Schwarzenegger's opinion of traditional textbooks?
A．He is against getting rid of them．
B．He wants to have them replaced with digital ones．
C．Soon they will no longer be used．
D．He believes that they are to blame for the poor quality of education in California
59．Diskey holds the view that .
A．the government shouldn't strengthen the use of open-source digital texts
B．digital textbooks make up for the shortcomings of traditional textbooks．
C．paper textbooks and digital ones both have advantages
D．traditional textbooks have more reliable content
60．According to the text, which of the following is TRUE?
A．Math is easier with the use of computers．
B．It is believed that digital books will replace traditional ones．
C．Textbook-free classes are the main form of teaching in the US schools．
D．Not all people are in favor of replacing paper textbooks with digital ones．
Humans have sewn by hand for thousands of years. It was said that the first thread was made from animal muscle and sinew (肌腱). And the earliest needles were made from bones. Since those early days, many people have been involved in the process of developing a machine that could do the same thing more quickly and with greater efficiency.
Charles Wiesenthal, who was born in Germany, designed and received a patent on a double-pointed needle that eliminated the need to turn the needle around with each stitch (缝合) in England in 1755. Other inventors of that time tried to develop a functional sewing machine, but each design had at least one serious imperfection.
Frenchman Barthelemy Thimonnier finally engineered a machine that really worked. However, he was nearly killed by a group of angry tailors when they burned down his garment factory. They feared that they would lose their jobs to the machine.
American inventor Elias Howe, born on July 9, 1819, was awarded a patent for a method of sewing that used thread from two different sources. Howe’s machine had a needle with an eye at the point, and it used the two threads to make a special stitch called a lockstitch. However, Howe faced difficulty in finding buyers for his machines in America. In frustration, he traveled to England to try to sell his invention there. When he finally returned home, he found that dozens of manufacturers were adapting his discovery for use in their own sewing machines.
Isaac Singer, another American inventor, was also a manufacturer who made improvements to the design of sewing machines. He invented an up-and-down-motion mechanism that replaced the side-to-side machines. He also developed a foot treadle (脚踏板) to power his machine. This improvement left the sewer’s hands free. Undoubtedly, it was a huge improvement of the hand-cranked machine of the past. Soon the Singer sewing machine achieved more fame than the others for it was more practical. It could be adapted to home use and it could be bought on hire-purchase. The Singer sewing machine became the first home appliance, and the Singer company became one of the first American multinationals.
However, Singer used the same method to create a lockstitch that Howe had already patented. As a result, Howe accused him of patent infringement (侵犯). Of course, Elias Howe won the court case, and Singer was ordered to pay Howe royalties (版税). In the end, Howe became a millionaire, not by manufacturing the sewing machine, but by receiving royalty payments for his invention. Barthelemy Thimonnier’s garment factory was burned down because __________.
| A．people did not know how to put out the fire |
| B．Elias Howe thought Thimonnier had stolen his invention |
| C．the sewing machines couldn’t work finally |
| D．workers who feared the loss of their jobs to a machine set fire |
Why did the court force Isaac Singer to pay Elias Howe a lifetime of royalties?
| A．Because the judge was against Singer for his unfriendly attitude. |
| B．Because Howe had already patented the lockstitch used by Singer. |
| C．Because Singer had borrowed money from Howe and never repaid it. |
| D．Because Singer and Howe had both invented the same machine. |
Which of the following would be the best title for this passage?
| A．A Stitch in Time Saves Nine |
| B．The Case between Howe and Singer |
| C．Patent Laws on the Sewing Machine |
| D．The Early History of the Sewing Machine |
Calling for Contributions
Keen to share your views and have your articles published in the Campus Link? We are calling for contributions to the following sections:
Lifestyle:
Do you travel widely, keep a journal of your adventures and have nice photographs that you might want to share? Or have you simply been somewhere that caught your imagination? Tell us all about your travels!
Are you an eager movie-goer? Be Leonard Maltin for the day and share your views of the latest blockbuster (大片) with our readers!
If food is your preferred choice of relaxation, try your hand at being food critic and send us your views on food/restaurants worth trying.
Class Notes:
Whether it’s about your accomplishments, memories of campus days, your recent career or a new addition to your family, we welcome you to share your news, views and photos with friends and classmates through Class Notes. Read about your classmates in this issue of Campus Link.
Research:
If this noble line of work is your bread and butter or passion, we want to hear from you! Share with Campus Link your research developments and breakthroughs. If you know of someone (your schoolmate or teacher) whose research work is a source of inspiration for our community, do not hesitate to send in your suggestions!
If you are interested in sharing any of the above, or if you know of someone worthy of feature, please get in touch with the Editor-in-Chief, at karinyeo@campuslink.sg.
Contributions will be selected based on their relevance and quality and Campus Link reserves the right to publish or reject a submission. All contributions will be edited for clarity and length. Please send your submissions in word.doc files and your photos in jpeg format.
Contributions for the next issue should reach us by 10 July 2013.In the Lifestyle section, you may not find ___________.
| A．journals of travels | B．well-taken photographs |
| C．stories of Leonard Maltin | D．opinions on restaurants |
Which of the following is TRUE about Campus Link?
| A．It offers readers bread and butter. |
| B．It welcomes research developments and breakthroughs. |
| C．It helps you to recognize your schoolmates and teachers. |
| D．It is a source of inspiration for the community. |
The poster aims to __________.
| A．declare the rights of Campus Link |
| B．introduce someone worthy of feature |
| C．share views and articles among teachers |
| D．encourage contributions for the next issue |
Lying in the sun on a rock, the cougar（美洲豹）saw Jeb and his son, Tom, before they saw it. Jeb put his bag down quickly and pulled his jacket open with both hands, making himself look big to the cougar. It worked. The cougar hesitated, ready to attack Jeb, but ready to forget the whole thing, too.
Jeb let go of his jacket, grasped Tom and held him across his body, making a cross. Now the cougar’s enemy looked even bigger, and it rose up, ready to move away, but unfortunately Tom got scared and struggled free of Jeb.
“Tom, no!” shouted his father.
But Tom broke and ran and that’s the last thing you do with a cougar. The second Tom broke free, Jeb threw himself on the cougar, just as it jumped from the rock. They hit each other in mid-air and both fell. The cougar was on Jeb in a flash, forgetting about Tom, which was what Jeb wanted.
Cougars are not as big as most people think and a determined man stands a chance, even with just his fists. As the cougar’s claws（爪子）got into his left shoulder, Jeb swung his fist at its eyes and hit hard. The animal howled and put its head back. Jeb followed up with his other fist. Then out of the corner of his eye, Jeb saw Tom. The boy was running back to help his father.
“Knife, Tom,” shouted Jeb.
The boy ran to his father’s bag, while Jeb started shouting as well as hitting, to keep the cougar’s attention away from Tom. Tom got the knife and ran over to Jeb. The cougar was moving its head in and out, trying to find a way through the wall Jeb was making out of his arms. Tom swung with the knife, into the cougar’s back. It howled horribly and ran off into the mountains.
The whole fight had taken about thirty seconds.Why did Jeb pull his jacket open when he saw the cougar?
| A．To get ready to fight. | B．To frighten it away. |
| C．To protect the boy. | D．To cool down. |
What do we know about cougars?
| A．They are afraid of noises. |
| B．They hesitate before they hit. |
| C．They are bigger than we think. |
| D．They like to attack running people. |
Which of the following happened first?
| A．The cougar jumped from the rock. |
| B．Tom struggled free of his father. |
| C．Jeb asked Tom to get the knife. |
| D．Jeb held Tom across his body. |
“Choo，Choo！”Here comes the Chunnel train. Get aboard if you want to learn more about this underground transportation system. This is an unusual form of transportation, because it is a tunnel that trains travel through and not an actual form of transportation.
The Chunnel is actually the English nickname for the Channel Tunnel. In French，it is called le tunnel sous la Manche. It is a rail tunnel beneath the English Channel at the Straits of Dover. It connects Cheriton in Kent, England with Sangatte in northern France. It is the second longest rail tunnel in the world.
Did you know that the British and the French had a race while they were building the Chunnel? The race was to see who could get to the middle of the tunnel first. The British won by a little bit. It took 15,000 workers over seven years to dig the tunnel. The tunnel was finished in 1994.
The completed Chunnel cost about $21 billion. But it all paid off, because it became very popular, very quick. Millions of people use it. Now it is getting even more popular.
There are three complete tunnels in the Chunnel. The two outside ones are the passenger trains. The small inner one is a guidance train. The guidance train is not used for transportation. Each track is exactly parallel to each other.
There are four different train systems in the Chunnel. The Eurostar is a high speed passenger service that connects London, Paris, Brussels and Lille. The Eurotunnel shuttle is a rail ferry service. These shuttles carry cars and vans. These are railcars that allow drivers to drive their vehicles on and off. There are also two Eurotunnel goods service trains.
Now you know more about the Chunnel. Everybody off，this is the last stop. The Channel Tunnel links ________with________.
| A．London; Paris | B．Cheriton; Sangatte |
| C．Lille; Brussels | D．Dover; Kent |
Which of the following shows the structure of the tunnels in the Chunnel?
The Eurotunnel shuttle is intended to carry________.
| A．passengers | B．drivers and their vehicles |
| C．goods | D．staff members of the Chunnel |
The text can most probably be ________.
| A．found in a guidebook | B．read in a magazine |
| C．broadcast on a train | D．heard in a railway station |
The day I became a mom was not the day my daughter was born, but seven years later. Up until that day, I had been too busy trying to survive my abusive(辱骂的) marriage. I had spent all my energy trying to run a "perfect" home that would pass inspection each evening, and I didn't see that my baby girl had become a toddler. I'd tried endlessly to please someone who could never be pleased and suddenly realized that the years had slipped by and could never return.
Oh, I had done the normal "motherly" things, like making sure my daughter got to ballet and gym lessons. I went to all of her recitals and school concerts, parent-teacher conferences and open houses alone. We suffered from my husband's rages(暴怒) when something was spilled(溢出) at the dinner table, telling her, "It will be okay, Honey. Daddy's not really mad at you." I did all I could to protect her from hearing the awful shouting and complaints after he returned from a night of drinking. Finally I did the best thing I could do for my daughter and myself: I removed us from the home that wasn't really a home at all.
That day I became a mom was the day when my daughter and I were sitting in our new home having a calm, quiet dinner just as I had always wanted for her. We were talking about what she had done in school and suddenly her little hand knocked over the full glass of chocolate milk by her plate. As I watched the white tablecloth and freshly painted white wall become dark brown, I looked at her small face. It was filled with fear, knowing what the consequence of the event would have meant only a week before in her father's presence. When I saw that look on her face and looked at the chocolate milk running down the wall, I simply started laughing. I am sure she thought I was crazy, but then she must have realized that I was thinking, "It's a good thing your father isn't here!" She started laughing with me, and we laughed until we cried. They were tears of joy and peace and were the first of many tears that we cried together. That was the day we knew that we were going to be okay.
Whenever either of us spills something, even now, seventeen years later, she says, "Remember the day I spilled the chocolate milk? I knew you had done the right thing for us." That was the day I really became a mom. I discovered that being a mom isn't only going to ballet or gym, recitals, and attending every school concert and open house. It isn't keeping a tidy house and preparing perfect meals. It certainly isn't pretending things are normal when they are not. For me, being a mom started when I could laugh over spilled milk.
---- By Linda Jones from “Chicken Soup for Soul”What does the underlined part "the right thing" refer to?
| A．Becoming a single mother. |
| B．Divorcing with her abusive husband. |
| C．Doing all the motherly things well and running the family. |
| D．Not blaming on her daughter’s spilling the chocolate milk. |
Which statement is NOT true?．
| A．The author had suffered from an unfortunate marriage for a long time. |
| B．All the things the author did were to protect her daughter |
| C．The author hadn’t been a mother until she removed from her marriage. |
| D．Both the author and her daughter were frightened at the husband and father. |
Why did the author and her daughter laugh and then cry?
| A．Because it was a thorough relief after they had suffered too much. |
| B．Because they were actually crazy. |
| C．Because they wouldn’t see the abusive man any more. |
| D．Because spilling the chocolate milk on the wall was really funny. |
What is the best title for this article?
| A．How To Be a Better Mon? | B．The Day I Became a Mom |
| C．A Thing Happened 17 Years Ago | D．Survive an Abusive Marriage |