A 33-year-old financial analyst in California recently quit his job to devote himself to an unpaid job teaching math on the Internet, and his lessons are reaching almost 100,000 people a month. Salman Khan’s voice is heard every day on the net --- by tens of thousands of students around the world who are hungry for help learning math. He has posted 1,200 lessons on YouTube ... lessons that appear on an electronic blackboard, which range from basic addition to advanced mathematics for science and finance. And they are free.
Khan lives in Silicon Valley, with his wife, a doctor, and their new baby. He got the idea for his “Khan Academy” four years ago, when he taught a young cousin how to convert kilograms to grams. With Khan’s help, the cousin got good at math, and Khan began a new career.
Now, Khan records his lessons himself, but he never goes on camera. “It feels like my voice in their head. You’re looking at it and it feels like someone’s over your shoulder talking in your ear, as opposed to someone at the blackboard, which is distant from you,” he said.
When Springfield High School in Palo Alto, California invited Khan to speak in person --- he immediately connected to the students there.
The idea of short lessons that can be played over and over again attracted high school senior Bridget Meaney. She says she had trouble with math in the seventh grade. “I think the teachers are good, but they can’t teach at a speed that’s perfect for everyone,” she said. “I like the idea of learning something in class but then going back and pressing pause or rewind and actually getting a deeper understanding of it.”
Originally, Khan kept his lessons short because of YouTube restrictions. Now, he thinks short is better. “Education researchers now tell me that 10 minutes is how long someone can have a high level of concentration. And anything beyond that and your brain switches off,” he said.
For Khan, teaching math, science, and finance is just the beginning. He says he’s ready to expand his YouTube site to include other subjects as well.What gave Khan the idea of teaching math online?
A.His success in helping his cousin learn math. |
B.His discovery that many students found learning math difficult. |
C.A suggestion made to him at a local high school. |
D.His interest in Internet teaching. |
Why does Khan never go on camera?
A.He’s too shy to show his face on camera. |
B.It’s restricted by YouTube for education videos. |
C.He wants to keep distance from the viewers. |
D.He wants to create a more relaxed learning atmosphere. |
From the passage, we know that ________.
A.Khan travels to many schools to promote his lessons |
B.Khan plans to include more subjects in the future |
C.Khan gives live math lessons every day for free |
D.Khan set up the Khan Academy with his wife |
Why does Bridget Meaney like Khan’s lessons?
A.Khan teaches seventh grade math better than her teacher. |
B.The lessons can be watched repeatedly until fully understood. |
C.She can perfectly follow the pace of Khan’s teaching. |
D.She cannot concentrate when learning in class. |
What does Khan mean by “short is better” in the 6th paragraph?
A.Keeping the lessons short can ensure better concentration. |
B.YouTube recommends short lessons for its site. |
C.Short lessons encourage students to return to the website. |
D.Students enjoy short mathematics lessons more. |
E
When I was growing up, 16 was always a magical age, a symbol of maturity, responsibility and of course more independence and freedom. I sat through the hours of Driver’s Ed classes eager to get out on the road. I couldn’t wait to get my driver’s license.
But it’s a different story for today’s teens. In January, the U.S. Department Transportation released 2012 data that showed only 30.7 percent of U.S. teens got their license at age 16, Twenty years before, that number was almost 45 percent.
There are numbers of reasons for the fall – off. The growing responsibilities like paying for insurance and high gas prices discourage teens from getting behind the wheel. Plus, many teens today are so busy with homework, endless hours of activities and part-time jobs, that finding the time for Driver’s Ed classes may be more difficult that ever.
In addition, many states have raised the driving age, or restricted when teens can drive and who they can have in the car. Parents may also be making their own personal restrictions until they feel their teens are responsible enough to drive safely.
Driving is part of the American culture, but it’s not the central focus like it was 25 years ago. They have so many other things to do now. One of the more interesting factors delaying teens driving might be the change of their social life. Today, teens need to look no further than Face book or other social networking sites to connect with their friends. There is simply less need, maybe less desire, to be able to grab the keys and go.
Michelle Wei got her license as a senior in high school because her digital social life made it easy no to drive. “If I couldn’t get a ride to see my friend who lives a town over,” the 19-year-old said, “I could talk on IM or Skype.”
Research has shown that these online relationships can lead to higher quality friendships, so it isn’t necessarily a bad thing. However, it’s important to find a balance. If old face-to-face friendships are good, why not drive to find them?We can infer from the first paragraph that .
A.Driver’s Ed classes allowed teens to know what maturity was |
B.getting a driving license at 16 was a must for American teens |
C.16 was considered an age when one could get his driver’s license |
D.teens could drive on the road without taking Driver’s Ed classes |
What does the passage mainly talk about?
A.Desire to drive on the road declines among American teens. |
B.Getting a license costs much more than ever before. |
C.Social networking sites are changing the life of American teens. |
D.American teens are becoming more responsible than ever. |
Michelle’s Wei’s example is used to explain ________.
A.why American teens are crazy about digital social life |
B.what social networking websites are bringing to American teens |
C.to what degree the Internet is affecting the American car culture |
D.what the Internet does to help teens to get a driving license |
The last paragraph is reminding the readers that.
A.the Internet h as a bad effect on the teen’s social life |
B.teens should keep a balance in choosing their lifestyle |
C.actual contacts can be replaced by talking on line |
D.face-to-face friendship is always the best choice |
D
Holding a cell phone against your ear or storing it in your pocket may be dangerous to your health. This explains a warning that cell phone manufacturers include in the small print that is often ignored when a new phone is purchased. Apple, for example, doesn’t want iPhones to come closer to you than 1.5 centimeters; Research In Motion, BlackBerry’s manufacturer, recommends 2.5 centimeters.
If health issues arise from cell phone use, the possible effects are huge. Voice calls - Americans chat on cell phones 2.26 trillion(万亿)minutes annually - earn $109 billion for the wireless carriers.
Devra Davis, an expert who has worked for the University of Pittsburgh, has published a book about cell phone radiation, “Disconnect.” The book surveys scientific research and concludes the question is not settled.
Brain cancer is a concern that Ms. Davis examines. Over all, there has not been an increase in its incidence since cell phones arrived. But the average masks an increase in brain cancer in the 20-to-29 age group and a drop for the older population.
“Most cancers have multiple causes,” she says, but she points to laboratory research that suggests low-energy radiation could damage cells that could possibly lead to cancer.
Children are more vulnerable to radiation than adults, Ms. Davis and other scientists point out. Radiation that penetrates only five centimeters into the brain of an adult will reach much deeper into the brains of children because their skulls are thinner and their brains contain more absorptive fluid(易吸收的液体). No studies have yet been completed on cell phone radiation and children, she says.
Henry Lai, a research professor in the bioengineering department at the University of Washington, began laboratory radiation studies in 1980 and found that rats exposed to radiation had damaged DNA in their brains.
Ms. Davis recommends using wired headsets or the phone’s speaker. Children should text rather than call, she said, and pregnant women should keep phones away from the abdomen(腹部).Why is the warning in the small print?
A.They think people will not care about it. |
B.There is not enough space for the warning. |
C.They don’t want the users to pay attention to it. |
D.The warning is not important at all. |
What does the underlined word in sixth paragraph probably mean?
A.acceptable | B.valuable | C.accessible | D.easily affected |
What can we conclude from the last paragraph?
A.Pregnant women should keep cell phones away. |
B.People should use cell phones in the correct way. |
C.If you are a child, you’d better text than make phone calls. |
D.When you use a cell phone, use a wired headset or the phone’s speaker. |
What does the passage mainly talk about?
A.Be careful when using cell phones. |
B.Don’t hold your cell phone against your ear. |
C.Rats exposed to radiation have damaged DNA in their brains. |
D.Low-energy radiation could damage cells that could lead to cancer. |
C
One Sunday, my family had gathered at my parents’ house to feast upon Mom’s wonderful cooking. During the normal dinner chatter (闲聊), I noticed that my father was slurring (说话含混) his words. No one mentioned this during dinner, but I felt compelled to discuss it with my mother afterward.
We decided that there was something seriously wrong and that Dad needed to see the doctor.
Mom phoned me two days later. “The doctor found a brain tumor (肿瘤). It’s too large at this point to operate. Maybe they can do something then, but the odds are long.”
Even with the treatment, my father’s condition worsened, and the doctor finally informed us that this condition was terminal (晚期的). During one of his stays in the hospital, we brought our baby daughter Chelsey with us when we visited him. By this time he had great difficulty speaking. I finally figured out that he wanted Chelsey to sit on his stomach so he could make faces at her.
Watching the two of them together, I realized I was living an experience that would stay with me forever. Though grateful for the times they could share, I couldn’t shake the feeling of a clock ticking in the background.
On the visit to my parents’ home during what we all know was my father’s last days, my mother took Chelsey from my arms and announced, “Your father would like to see you alone for a minute.”
I entered the bedroom where my father lay on a rented hospital bed. He appeared even weaker than the day before.
“How are you feeling, Dad?” I asked. “Can I do anything for you?”
He tried to speak, but he couldn’t make out a word.
“I’m sorry, but I can’t understand you,” I said.
With great difficulty he said, “I love you.”
We don’t learn courage from heroes on the evening news. We learn true courage from watching ordinary people rise above hopeless situations. In many ways my father was a strict, uncommunicative man. He found it difficult to show emotion. The bravest thing I ever saw him do was overcome that barrier to open his heart to his son and family at the end of his life.Which of the following statements is TRUE?
A.The writer accompanied his father to a medical examination. |
B.The writer’s father got worse after the removal of the brain tumor. |
C.The writer was quick to notice the strange condition of his father. |
D.The writer’s father had known about his illness before the writer discovered it. |
What does the underlined sentence “the odds are long” mean?
A.There’s little possibility for Father to recover. |
B.It takes a long time for Father to recover. |
C.Father needs love and care from his family. |
D.They need a proper time to operate on Father. |
The father had never said “I love you” to the writer before because ________.
A.he believed in strictness and punishment |
B.he was not so attached to the writer |
C.he thought there was no need to tell the writer |
D.he was not used to openly showing his emotions |
What does the writer attempt to tell us?
A.We don’t often value health until we lose it. |
B.Don’t wait to see a doctor till it is too late. |
C.Life is short, so live your life to the fullest. |
D.Bravely express your love for your family. |
B
Built in 1794 for the 5th Duke of Bedford, this hotel in the heart of Bedford overlooks the River Ouse, which winds through the beautiful Bedfordshire countryside.
We offer a flexible approach to conferencing. With purpose-built meeting rooms offering a flexible and functional space, our hotel is designed for comfort and convenience. Day Delegate(代表/代表团), 24 Hour Delegate or room hire only can be arranged to meet your needs and we offer a range of food and drinks for all requirements.
The Bedford Swan Hotel provides an impressive range of conference, training and function rooms which are suitable for up to 250 delegates.
Our hotel is located 30 minutes drive from Luton Airport and a 20-minute walk from Bedford Train Station with regular trains to and from Central London.
What to expect:
•A professional service from the beginning
•Your own event consultant
•A great location with car parking
• Well equipped rooms perfect for your meeting or event
• Various Day Delegate packages
•Personalized dining and refreshment breaks
•Accurate billing
Discounted Day Delegate Rates from £35 per person
* Hold your meeting before 30th November 2013 and benefit from our special day delegate rates
* Day Delegate Rate from £35.00 per person
* Minimum numbers of 8 apply
Call us on 01234 346565 or e-mail us on info@bedfordswanhotel.co.ukBedford Swan Hotel is more suitable for _______.
A.busy sightseers | B.conference travelers |
C.fresh trainees | D.event consultants |
Which of the following is true according to the text?
A.It takes you 20 minutes to walk here from Central London. |
B.The Bedford Swan Hotel was built in the late 18th century. |
C.The hotel is located sixty kilometres from Luton Airport. |
D.Guests can get professional service by offering extra tips. |
From the advertisement above we can learn that Bedford Swan Hotel _______.
A.can serve up to 250 delegates | B.winds through Bedfordshire |
C.can provide personalized billing | D.offers no car parking service |
The special discount will be given if _______.
A.a delegate of 8 apply for 24-hour-meeting rooms |
B.guests pay £35.00 per person for the rooms they live in |
C.you book a purpose-built meeting room on a special day |
D.8 delegates hold a day meeting on November 2, 2013 |
A
Chinese writer Mo Yan has won the 2012 Nobel Prize in Literature, announced the Swedish Academy in Stockholm on Thursday.The win makes Mo Yan the first Chinese citizen to win the Nobel in its Ⅲ-year history.Informed of his win today, the author, who was having dinner at home, was “overjoyed and scared".
Born in 1955 to parents who were farmers, Mo Yan-a pen name for Guan Moye,grew up in Gaomi in Shandong province in eastern China. At the age of 12, he left school to work, first in agriculture, later in a factory. In 1976 he joined the army and during this time began to study literature and writing.
He published his first book in 1981, but found literary success in 1987 with Hong Gaoliang Jiazu, which was successfully filmed in the same year, directed by famous Chinese director Zhang Yimou. In his writing, Mo Yan draws on his youthful experiences and on settings in the province of his birth and his works show the life of Chinese people as well as the country's unique culture and folk customs. Mo Yan is known as a prolific(多产的)writer. In addition to his novels, he has published many short stories and essays on various topics. Despite his social criticism, he is seen in his homeland as one of the most famous contemporary authors. Dozens of his works have been translated into English, French, Japanese and many other languages.
The awarding ceremony will be held on December 10.The winner will win a medal, a personal diploma and a cash award of about $l million.How did Mo Yan feel when he was told about the news?
A.Excited and proud. | B. Happy and surprised. |
C.Worried and cautious | D. Uncertain and shocked. |
Mo Yan developed his ability for writing when he was.
A.on a farm | B.in a factory | C.in a school | D.in the army |
One of Mo Yan's characteristics of writing is that he
A.writes about topics he is familiar with | B.focuses on social problems in the country |
C.describes his characters in a unique way | D.explains difficult matters in simple words |
What's the best title for this passage?
A.How Mo Yan Gets Nobel Prize | B.An Introduction to Nobel Prize |
C.Mo Yan Wins Nobel Prize in Literature | D.A World Famous Writer, Mo Yan |