Question

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 You Tube —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

1. 1.
   What gave Khan the idea of teaching math online?
   1. A.
      His success in helping his cousin learn math
   2. B.
      His discovery that many students found learning math difficult
   3. C.
      A suggestion made to him at a local high school
   4. D.
      His interest in Internet teaching
2. 2.
   Why does Khan never go on camera?
   1. A.
      He’s too shy to show his face on camera
   2. B.
      It’s restricted by YouTube for education videos
   3. C.
      He wants to keep distance from the viewers
   4. D.
      He wants to create a more relaxed learning atmosphere
3. 3.
   From the passage, we know that ________
   1. A.
      Khan travels to many schools to promote his lessons
   2. B.
      Khan plans to include more subjects in the future
   3. C.
      Khan gives live math lessons every day for free
   4. D.
      Khan set up the Khan Academy with his wife
4. 4.
   Why does Bridget Meaney like Khan’s lessons?
   1. A.
      Khan teaches seventh grade math better than her teacher
   2. B.
      The lessons can be watched repeatedly until fully understood
   3. C.
      She can perfectly follow the pace of Khan’s teaching
   4. D.
      She cannot concentrate when learning in class
5. 5.
   What does Khan mean by “short is better” in the 6th paragraph?
   1. A.
      Keeping the lessons short can ensure better concentration
   2. B.
      YouTube recommends short lessons for its site
   3. C.
      Short lessons encourage students to return to the website
   4. D.
      Students enjoy short mathematics lessons more

Answer 1

ADBBA
試題分析：本文講述了一個(gè)33歲的經(jīng)濟(jì)學(xué)分析師辭去工作而轉(zhuǎn)向無(wú)報(bào)酬的教學(xué)行業(yè)，通過(guò)自己在優(yōu)酷網(wǎng)上發(fā)布的課程幫助了上百萬(wàn)的學(xué)生，同時(shí)他也將在未來(lái)加入更多的科目到網(wǎng)站上來(lái)幫助學(xué)生們。
1.細(xì)節(jié)題。從文章He got the idea for his “Khan Academy” four years ago, when he taught a young cousin how to convert kilograms to grams.可知，他有這個(gè)想法是他在四年前幫他的堂弟學(xué)數(shù)學(xué)的時(shí)候，故選A
2.細(xì)節(jié)題。從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,可知他之所以不用視頻攝像的原因是他覺(jué)得如果人在黑板的前面，那么會(huì)和聽(tīng)眾有一種距離感，所以他是為了營(yíng)造一種輕松的氛圍，故選D
3.細(xì)節(jié)題。從最后He says he’s ready to expand his YouTube site to include other subjects as well.可知，他還想加入更多的學(xué)科到他的網(wǎng)站中來(lái)，故選B
4.細(xì)節(jié)題。從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.可知，她之所以喜歡是因?yàn)檫@些課程可以重復(fù)的不斷的收聽(tīng)，直至完全的理解，故選B
5.細(xì)節(jié)題。從Education researchers now tell me that 10 minutes is how long someone can have a high level of concentration.可知，之所以保持他的課程很短是因?yàn)檫@樣更能使學(xué)生們注意力集中。故選A
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