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.

1.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.

2.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.

3.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

4.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.

5.What does Khan mean by “short is better” in the 6^th 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.

第一节：完形填空    

It’s not just an American phenomenon:   1   the globe, single-parent homes are on the  2  . Numbers for one-parent families increased from England to Australia during the 1990s, mirroring demographic (人口统计学的) changes reflected in the US census.

Just as in America, those changes   3   new questions about how  4     government should be in helping single-parent families, which often are less well-off   5   than those led by a married mom and dad.

Should single parents be afforded tax breaks to help pay for child   6   ? Should employers be monitored to make   7  flexible work hours are offered?

Annie Oliver, a 32-year-old single mother from Bristol, England, thinks so. “You wouldn’t believe   8   becoming a single parent suddenly made me a second-class   9   ,” said Oliver, who struggles to   10   a full-time job and give the extra care her disabled son needs.

(   ) 1. A. on B. in     C. across       D. through

(   ) 2. A. rise      B. way  C. fall   D. decrease

(   ) 3. A. asked    B. answered  C. avoided    D. raised

(   ) 4.A. included       B. concluded C. involved   D. intended

(   ) 5. A. physically    B. financially       C. mentally   D. spiritually

(   ) 6. A. care      B. growth     C. happiness  D. concern

(   ) 7. A. clear     B. known      C. out    D. sure

(   ) 8. A. when    B. what C. how  D. why

(   ) 9. A. employee     B. citizen      C. partner     D. mother

(   ) 10. A. keep   B. look for    C. find  D. own

阅读下面短文，掌握其大意，然后从第36至第55小题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。                         

Washoe is a young chimpanzee(黑猩猩). She is no 36 chimpanzee, though. Scientists are doing a research 37her. They want to see how civilized(驯化)she can 38 Already she does many things a human being can do.

　　For example, she has been learning how to exchange 39with people. The scientists are teaching her 40language. When she wants to be picked 41, Washoe points up with one finger. She rubs her teeth with her finger 42she wants to brush her teeth. This is done after every meal.

　　Washoe has also been 43to think out and find answers to problems. Once she was put in a 44with food hanging from the ceiling. It was too high to 45 . After she considered the 46 she got a tall box to stand 47The food was still too high to be reached.Washoe found a 48pole. Then she climbed onto the49, grasped the pole, and 50 down the food with the pole.

Washoe 51 like a human, too. The scientists keep her in a fully furnished(家具齐全的)house. After a hard 52in the laboratory, she goes home. 53 she plays with her toys. She 54 enjoys watching television before going to bed.

　　Scientists hope to 55 more about people by studying our closest,relative(亲属)—chimpanzee.

1. A.foolish　　　  B.ordinary　　　  C.special　　　   D.simple

2. A.for　　　　　 B.by　　　　　　 C.to　　　　  　 D.on

3.A.experience　   B.change　　　　 C.develop　　　  D.become

4. A.actions　　　  B.views　　　　  C.messages　　   D.feelings

5.A.sign　　　　  B.human　　　　 C.spoken　　　   D.foreign

6.A.out　　　　　 B.at　　　　　　 C.on　　　　　  D.up

7.A.when　　　　 B.until　　　　   C.since　　　　  D.while

8.A.raised　　　  B.trained　　　    C.ordered　　　  D.led

9.A.cave　　　　 B.zoo　　　　　   C.room　　　   D.museum

10.A.pull　　　　  B.see　　　　　  C.eat　　　　   D.reach

11.A.problem　　　B.position　　　  C.food　　　　  D.ceiling

12.A.by　　　　　 B.on　　　　　　C.up　　　　    D.with

13.A.straight　　   B.strong　　　　 C.long　　　　  D.big

14.A.wall　　　　  B.box　　　　　 C.ceiling　　　  D.pole

15.A.knocked　　　 B.picked　　　　 C.took　　　　  D.shook

16.A.lives　　　　  B.acts　　　　　 C.thinks　　　   D.plays

17.A.task　　　　  B.lesson　　　　 C.day　　　   　D.time

18.A.Here　　　　 B.There　　　　  C.So　　　　    DThen

19.A.quite　　　　 B.already　　　   C.even　　　　  D.still

20.A.observe　　　B.discover　　　   C.gain　　　　  D.learn

       Every day we experience one of the wonders of the world around us without even realizing it. It is not the amazing complexity of television, nor the impressive technology of transport. The universal wonder we share and experience is our ability to make noises with our mouths, and so transmit ideas and thoughts to each other’s minds. This ability comes so naturally that we tend to forget what a miracle (奇迹) it is.
Obviously, the ability to talk is something that marks humans off from animals. Of course, some animals have powers just as amazing. Birds can fly thousands of miles by observing positions of the stars in the sky in relation to the time of day and year. In Nature’s talent show, humans are a species of animal that have developed their own special act. If we reduce it to basic terms, it’s an ability for communicating information to others, by varying sounds we make as we breathe out.
Not that we don’t have other powers of communication. Our facial expressions convey our emotions, such as anger, or joy, or disappointment. The way we hold our heads can indicate to others whether we are happy or sad. This is so-called “body language”. Bristling (直立的) fur is an unmistakable warning of attack among many animals. Similarly, the bowed head or drooping tail shows a readiness to take second place in any animal gathering.
Such a means of communication is a basic mechanism that animals, including human beings, instinctively acquire and display. Is the ability to speak just another sort of instinct? If so, how did human beings acquire this amazing skill? Biologists can readily indicate that particular area of our brain where speech mechanisms function, but this doesn’t tell us how that part of our bodies originated in our biological history.
【小题1】According to the passage, the wonder we take for granted is          .