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.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 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.
高一英语阅读理解中等难度题
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.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 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.
高一英语阅读理解中等难度题查看答案及解析
A 17-year-old boy, caught sending text messages in class, was recently sent to the vice principal's office at Millwood High School in Halifax, Nova Scotia.
The vice principal, Steve Gallagher, told the boy he needed to focus on the teacher, not his cellphone. The boy listened politely and nodded, and that's when Mr. Gallagher noticed the student's fingers moving on his lap. He was texting while being scolded for texting!
"It was a subconscious(下意识的) act," said Mr. Gallagher, who took the phone away. "Young people today are connected socially from the moment they open their eyes in the morning until they close their eyes at night. It's addictive(上瘾的). They can’t simply stop doing that."
Because so many people in their teens and early 20s are in this constant whir of socializing – accessible(易接近的) to each other every minute of the day via cellphone, instant messaging and social-networking Web sites -- there are a host of new questions that need to be addressed in schools, in the workplace and at home. Chief among them: How much work can "hyper-socializing" students or employees really accomplish if they are holding multiple conversations with friends via text-messaging, or are obsessively checking Facebook? Almost a quarter of today's teens check Facebook more than 10 times a day, according to a 2009 survey by Common Sense Media, a non-profit group that monitors media's impact on families.
Will these young people get rid of this habit once they enter the work force, or will employers come to see texting and "social-network checking" as accepted parts of the workday?
"In past generations, students got in trouble for passing notes in class. Now students are adept at texting with their phones still in their pockets," said 40-year-old Mr. Gallagher, "and they're able to communicate with someone one floor down and three rows over. Students are just fundamentally different today. They will take suspensions(休学) rather than give up their phones."
1.When the boy was scolded for texting, _________________.
A. he was polite and regretful
B. he was trying sending another message
C. his fingers shouldn’t be put on his lap
D. he listened carefully and nodded
2.From what the boy did we know___________.
A. Using the cellphone is addictive for the boy
B. The boy will stop using the cellphone
C. The boy will leave school
D. The boy wasn’t willing to accept being scolded
3.What can we learn about the students in their teens and early 20s?
A. All of them are addicted to using cellphones.
B. They will get rid of the habit once they go to work.
C. They are greatly different from the past generations.
D. Most of them check Facebook more than 10 times a day.
4.What can we infer from the passage?
A. Facebook is a kind of book students need to read at school.
B. The employers will accept texting at workday.
C. The students will give up their phones one day.
D. It’s convenient for students to communicate with others with cellphones.
高一英语阅读理解中等难度题查看答案及解析
Recently, a scientist did some experiments.He left a group of 4-year-olds in a room with a bell and a candy.If they rang the bell, he would come back and they could eat the candy.If, however, they didn't ring the bell and waited for him to come back on his own, they could then have two candies.
In videos of the experiment, he can see the children kicking, hiding their eyes--trying to exercise self-control so they can wait and get two candies.The results are different.Some broke down and rang the bell within a minute.Others lasted 15 minutes.
The children who waited longer went on to get higher SAT scores.They got into better colleges and had better adult success.The children who rang the bell quickest were more likely to have received worse teacher and parental evaluations (评价) 10 years later and were more likely to have drug problems at age 32.
The experiments are worth noting because people spend a lot of time thinking about how to improve education, how to become rich.But when the result is not good, they will come back to ask "how do we get people to get the sort of self-control that leads to success?" This is to enter the world of human nature.
So these experiments along with everyday experience, tell us that self-control is most important.Young people who can sit through sometimes boring classes to get a degree can work hard in order to learn a language well.They can avoid drugs and alcohol.For people without self-control skills, however, school is a series of failed ordeals(煎熬).No wonder they drop out and their later life is a group of foolish ideas, such as drug use, stealing and so on.
1.The scientist did some experiments to ________.
A.test children's self control and later success |
B.test children's intelligence of ringing the bell |
C.find good ways of training children to learn |
D.prove that children's education is important |
2.We can learn from the experiment that ________
A.all children tried to ring the bell for more candies |
B.some children didn't get any candy in the end |
C.the children have different self- control |
D.the last one to ring the bell is most successful |
3.What is the best title for this passage?
A.Ways of self-control training |
B.Experiments on children's ringing the bell |
C.Higher score, better achievements |
D.Self-control is the key to success |
高一英语阅读理解中等难度题查看答案及解析
Recently, a scientist did some experiments.He left a group of 4-year-olds in a room with a bell and a candy.If they rang the bell, he would come back and they could eat the candy.If, however, they didn't ring the bell and waited for him to come back on his own, they could then have two candies.
In videos of the experiment, he can see the children kicking, hiding their eyes--trying to exercise self-control so they can wait and get two candies.The results are different.Some broke down and rang the bell within a minute.Others lasted 15 minutes.
The children who waited longer went on to get higher SAT scores.They got into better colleges and had better adult success.The children who rang the bell quickest were more likely to have received worse teacher and parental evaluations 10 years later and were more likely to have drug problems at age 32.
The experiments are worth noting because people spend a lot of time thinking about how to improve education, how to become rich.But when the result is not good, they will come back to ask "how do we get people to get the sort of self-control that leads to success?" This is to enter the world of human nature.
So these experiments along with everyday experience, tell us that self-control is most important.Young people who can sit through sometimes boring classes to get a degree can work hard in order to learn a language well.They can avoid drugs and alcohol.For people without self-control skills, however, school is a series of failed ordeals(煎熬).No wonder they drop out and their later life is a group of foolish ideas, such as drug use, stealing and so on.
1.The scientist did some experiments to .
A. test children's self control and later success
B. test children's intelligence of ringing the bell
C. find good ways of training children to learn
D. prove that children's education is important
2.How long did the scientist's experiments last according to the text?
A. Just 15 minutes. B. Within 10 years.
C. Less than 14 years. D.More than 28 years.
3.What is the best title for this passage?
A. Ways of self-control training
B. Experiments on children's ringing the bell
C. Higher score, better achievements
D. Self-control is the key to success
高一英语阅读理解中等难度题查看答案及解析
In recent days, 33 persons have been infected with the H7N9 virus, _____9 deaths.
A.causing B.caused C.to cause D.cause
高一英语单项填空中等难度题查看答案及解析
Last July, my 12-year-old car died on California’s Santa Ana Freeway. It was an hour before sunset, and I was 25 miles from home. I couldn’t reach anyone to pick me up, so I decided to take a bus. Not knowing the routes, I figured I’d just head east.
A bus pulled up, and I asked the driver how far she was going. “Four more lights,” she said. There was another bus I could take from there. This clearly was going to be a long night.
She dropped me off at the end of her route and told me which bus to look for. After waiting for 30 minutes, I began to think about a very expensive taxi ride home. Then a bus pulled up. There was no lighted number above its windshield(挡风玻璃).It was out of service. But the door opened, and I was surprised to find that it was the same driver.
“I just can’t leave you here,” she said. “This isn’t the nicest place. I’ll give you a ride home.”
“You’ll drive me home in the bus?” I asked, puzzled.
“No, I’ll take you in my car,” she said.
“It’s a long way,” I protested.
“Come on,” she said. “I have nothing else to do.”
As we drove from the station in her car, she began telling me a story. A few days earlier, her brother had run out of gas. A good Samaritan picked him up, took him to a service station and then back to his car. “I’m just passing the favor along,” she said.
When I offered her money as a thank-you, she wouldn’t accept it. “That wouldn’t make it a favor,”she said. “Just do something nice for somebody. Pass it along.”
1.Why did the writer say that he would have a long night?
A.He wondered how long he had to wait for the next bus.
B.No driver would give him a ride.
C.He didn’t know the routes.
D.He perhaps would have to take a taxi.
2.Judging from the context, the place where the writer waited for the second bus was.
A.very quiet and peaceful
B.dark without street lights
C.neither clean nor beautiful
D.a little unsafe
3.Why did the writer change his mind after waiting for 30 minutes at the end of the route?
A.No bus would come at the time.
B.A taxi ride would be more comfortable.
C.He became impatient and a bit worried.
D.He knew the driver would never return.
4.The bus driver hoped that the writer ________ .
A.would pass the good deed along
B.would keep her in memory
C.would give the money to others
D.would do her a favor
高一英语阅读理解中等难度题查看答案及解析
Last July, my 12-year-old car died on California's Santa Na Freeway. It was an hour before sunset, and I was 25 miles form home. I couldn't reach anyone to pick me up, so I decided to take a bus. Not knowing the routes, I figured I'd just head east.
A bus pulled up, and I asked the driver how far she was going. "Four more lights," she said. There was another bus I could take form there. This clearly was going to be a long night.
She dropped me off at the end of her route and told me which bus to look for. After waiting 30 minutes, I began to think about a very expensive taxi ride home. Then a bus pulled up. There was no lighted number above its wind-shield. It was out of service. But the door opened, and I was surprised to find that it was the same driver.
"I just can't leave you here, "she said. "This isn't the nicest place. I'll give you a ride home."
“You’ll drive me home in the bus?” I asked, perplexed(迷惑的).
“No, I’ll take you in my car,” she said.
“It’s a long way,” I protested(抗议).
“Come on,”she said. “I have nothing else to do.”
As we drove from the station in her car, she began telling me a story. A few days earlier, her brother had run out of gas. A good Samaritan picked him up, took him to a service station and then back to his car. “I’m just passing the favor along.”she said.
When I offered her money as a thank-you, she wouldn’t hear of it. “That would not make it a favor,” she said. “Just do something nice for somebody. Pass it along.”
1.The writer thought that he would have a long night because
A.it world be long before he could take another bus |
B.no driver would give him a ride |
C.he didn’t know the routes |
D.he perhaps would have to take a taxi |
2.Judging from its context, the place where the writer waited for the second bus was________.
A.very quiet and peaceful | B.dark without street lights |
C.neither clean nor beautiful | D.a little unsafe |
3.The writer wanted to take a taxi home at the end of the route because________.
A.no bus would come |
B.a taxi ride would be more comfortable |
C.he became impatient and a bit worried |
D.he knew the driver would never return |
4.The bus driver drove the writer home later because________.
A.she happened to go in the same direction |
B.she wanted to do something good for other people |
C.her brother told her to do so |
D.she wanted to earn more money |
5.The bus driver hoped that the writer________.
A.world do as she did | B.would keep her in memory |
C.would give the money to others | D.would do her a favor |
高一英语阅读理解中等难度题查看答案及解析
5-year-old Lucy Green is from California. She didn’t _______ to become a(n) hero when she went for a walk with her mom recently. But when some strangers called out for _______, Lucy and her mom ran to their side.
It turns out that some ducklings(小鸭子) had gotten stuck and the people who found them were unable to _______ them. But luckily for the ducklings, Lucy had just what it took to bring them to _______. Now the 5-year-old’s _______ act is being talked about.
It all _______ when a family found a mother duck _______ with only one duckling. The father duck was nearby, but strangely, there were no _______ ducklings following them. _______ the family knew that ducks often travel in flocks (群), they __________ that something was probably wrong.
Then suddenly, there were strange sounds coming from a drainage pipe (排水管). They were the __________ of ducklings. It turned out that the other ducklings had __________ into the pipe and gotten stuck. Unluckily, no one in the family had __________ enough arms to reach down and pull out the ducklings ---but __________, there was a hero nearby.
The family __________Lucy and her mom, who rushed to them in a hurry. The family filled Lucy and her mom in on what had happened, and Lucy decided to take __________immediately and try to bring the ducklings out.
Lucy put her arm down into the __________ and carefully __________out the first duckling. And the next…until she had brought all eight ducklings out.
After Lucy saved the little creatures from __________, the __________mother duck went off with her beloved ducklings.
1.A. expect B. believe C. wish D. desire
2.A. advice B. treatment C. help D. encouragement
3.A. lose B. save C. protect D. feed
4.A. health B. safety C. joy D. strength
5.A. smart B. creative C. fair D. kind
6.A. succeeded B. failed C. cancelled D. started
7.A. working B. playing C. waiting D. wondering
8.A. another B. others C. other D. the others
9.A. Though B. If C. Before D. Since
10.A. assured B. realized C. guaranteed D. recognized
11.A. cries B. warnings C. laughter D. smells
12.A. broken B. fallen C. looked D. flown
13.A. fatty B. strong C. slim D. powerful
14.A. surprisingly B. fortunately C. naturally D. clearly
15.A. nodded to B. listened to C. laughed at D. shouted at
16.A. notice B. care C. action D. measurement
17.A. brightness B. length C. tunnel D. darkness
18.A. lifted B. examined C. covered D. guided
19.A. fear B. doubt C. danger D. anger
20.A. depressed B. overjoyed C. disappointed D. frightened
高一英语完形填空困难题查看答案及解析
On a recent trip to California, I was introduced to Smile Cards. I promised myself to _______ an act of kindness before I lelt California. I _______ thinking about it but I didn’t know what to do.
I reached the airport and the _______ was about to begin when I saw an ice-cream store. I went in and told the guy at the store that I _______ to do an act of kindness. The guy, named Jose, looked confused. _______ I explained I had just attended a conference, where I was told Smile Cards and _______ to do an act of kindness. Jose showed _______. I told Jose, “Whoever is your next _______ , treat them to some ice-cream and then give them this Smile Card.” Jose _______ read the card and agreed with a smile that was both grateful and ________ at the same time.
Since this was my first time, I wanted to know the ________ of the receiver. “Jose, I have to catch a ________ , but here is my cell phone number. Would you be ________ enough to call me and tell me the person’s reaction?” He ________ .
I went to my gate, and as I was about to board, Jose ________ . “I did the act of kindness. The person was very ________, and asked me to express thanks to the person who paid for them!” I again thanked Jose and boarded the flight feeling ________.
I really want to ________ this practice of kindness. I am a professor and I love my work ________ it makes a difference in the lives of others. And now, I realize that I can do that everywhere. The whole world is my ________ .
1.A. do B. find C. prove D. explain
2.A. practised B. enjoyed C. tried D. kept
3.A. checking B. boarding C. shopping. D. booking
4.A. managed B. chose C. wanted D. forgot
5.A. Then B. Again C. Yet D. Anyhow
6.A. forced B. ordered C. allowed D. encouraged
7.A. anger B. interest C. satisfaction D. delight
8.A. visitor B. waiter C. customer D. friend
9.A. curiously B. calmly C. politely D. nervously
10.A. annoyed B. tired C. frightened D. confused
11.A. reply B. reaction C. expression D. decision
12.A. bus B. train C. flight D. taxi
13.A. kind B. brave C. wise D. shy
14.A. refused B. agreed C. succeeded D. failed
15.A. arrived B. shouted C. appeared D. called
16.A. happy B. active C. special D. clever
17.A. safe B. lucky C. proud D. energetic
18.A. introduce B. describe C. explore D. continue
19.A. once B. because C. if D. though
20.A. homeland B. battlefield C. playground D. main-road
高一英语完形填空简单题查看答案及解析
On a recent trip to California, I was introduced to Smile Cards. I promised myself to________an act of kindness before I left California. I________thinking about it but I didn’t know what to do.
I reached the airport and the________ was about to begin when I saw an ice-cream store. I went in and told the guy at the store that I________to do an act of kindness. The guy, named Jose, looked confused.________I explained I had just attended a conference (会议), where I was told Smile Cards and________to do an act of kindness. Jose showed ________. I told Jose, “Whoever is your next________, treat them to some ice-cream and then give them this Smile Card.” Jose ________read the card and agreed with a smile that was both grateful and________at the same time.
Since this was my first time, I wanted to know the________of the receiver. “Jose, I have to catch a________, but here is my cell phone number. Would you be________enough to call me and tell me the person’s reaction?” He________.
I went to my gate, and as I was about to board, Jose________. “I did the act of kindness. The person was very________, and asked me to express thanks to the person who paid for them!” I again thanked Jose and boarded the flight feeling________.
I really want to________this practice of kindness. I am a professor and I love my work ________it makes a difference in the lives of others. And now, I realize that I can do that everywhere. The whole world is my________.
1.A.find B.prove C.do D.explain
2.A.practiced B.kept C.tried D.enjoyed
3.A.checking B.booking C.shopping D.boarding
4.A.wanted B.managed C.chose D.forgot
5.A.Again B.Anyhow C.Yet D.Then
6.A.forced B.ordered C.encouraged D.allowed
7.A.anger B.satisfaction C.delight D.interest
8.A.visitor B.customer C.waiter D.friend
9.A.calmly B.politely C.curiously D.nervously
10.A.annoyed B.confused C.frightened D.tired
11.A.reaction B.answer C.expression D.decision
12.A.bus B.train C.taxi D.flight
13.A.brave B.wise C.kind D.shy
14.A.agreed B.refused C.succeeded D.failed
15.A.arrived B.shouted C.called D.appeared
16.A.active B.happy C.special D.clever
17.A.proud B.safe C.lucky D.energetic
18.A.introduce B.continue C.describe D.explore
19.A.once B.if C.though D.because
20.A.battlefield B.homeland C.playground D.main-road
高一英语完形填空中等难度题查看答案及解析