Growing up, I thought math class was something to be endured, not enjoyed. I disliked memorizing formulas(公式) and taking tests, all for the dull goal of getting a good grade. One of my teachers told my mother that I was “slow”. But my problem wasn't with math itself. In fact, when a topic seemed particularly interesting, I would go to the library and read more about it.
By high school, no one told me that I could become a professional mathematician. What I wanted to do then was to play college football. My ambition was to get an athletic scholarship to attend a Big Ten school.
The chances of that happening were very low. But that didn’t stop my coaches from encouraging me to believe I could reach my goal, and preparing and pushing me to work for it. They made video tapes of my performances and sent them to college coaches around the country. In the end, a Big Ten school, Penn State, did offer me a scholarship.
I wish math teachers were more like football coaches. Students are affected by more than just the quality of a lesson plan. They also respond to the passion of their teachers and the engagement of their peers, and they seek a sense of purpose. They benefit from specific instructions and constant feedback(反馈).
Until I got to college, I didn't really know what mathematics was. I still thought of it as laborious(耗时费力的) calculations. Then my professor handed me a book and suggested that I think about a particular problem. It wasn't easy, but it was fascinating. My professor kept giving me problems, and I kept pursuing them, even though I couldn’t always solve them immediately. The mathematical research I was doing had little in common with what I did in my high school classrooms. Instead, it was closer to the math and logic puzzles I did on my own as a boy. It gave me that same sense of wonder and curiosity, and it rewarded creativity. I am now a Ph. D candidate in mathematics at the Massachusetts Institute of Technology.
1. Why did the writer think math class in school was “something to be endured” before entering college?A.Because he wasn’t interested in math. |
B.Because his math teachers didn't care to push him. |
C.Because he was too smart and talented for math class. |
D.Because he was training hard for an athletic scholarship. |
A.a sense of purpose | B.constant feedback |
C.passion | D.specific instructions |
A.was busy looking for math problems to solve |
B.studied on his own just as he was in high school |
C.met with laborious calculations in his studies |
D.began to realize what mathematics really is |
A.Interest is the best teacher |
B.Be the best—you can make it |
C.Math, taught like football |
D.Once your teacher, always your teacher |
相似题推荐
【推荐1】At 1,345 meters above sea level, Ben Nevis is definitely not the world’s most difficult mountain to climb. But things get considerably tricky if instead of hiking shoes you put on a pair of 5-inch high heels, especially if you’re a guy. One English teenager recently proved that it was not impossible.
Ben Conway, a 19-year-old art student from London, recently took up the challenge as a way to stand out in an application for a scholarship for the School of Communication Arts in Brixton. He started his unusual high-heel climb at 8 a.m., on June 27, and was joined by Callum MacKenzie Allen, a friend from his art foundation year, who videotaped the whole thing for a two-minute video that served as his application project. The whole climb took five hours and wasn’t the smoothest experience.
Halfway up Ben Navis, one of his shoes broke, so he had to tape the shoes to his feet to make sure they stayed on. The weather didn’t make it easy for him either, as he claimed that it rained pretty much the whole time, and he had to go against 40 to 50 miles an hour winds. Due to these difficult conditions, Ben and his friend had to turn back after reaching 900 meters up the mountain.
Apart from providing a unique art school application project, the high-heel climb also allowed the 19-year-old to raise some money for worthy causes, like Sal’s Shoes, which provides footwear for barefoot children around the world.
“Raising money for charity brings happiness to people’s lives and if I can do something ridiculous and bring someone happiness, then that’s what it’s all about”, Ben said.
1. What can replace the underlined word “tricky” in Paragraph 1?A.Pleasant. | B.Boring. | C.Tough. | D.Smooth. |
A.To prove nothing is impossible. | B.To record a special experience. |
C.To promote their friendship. | D.To assist in Ben’s application. |
A.The difficulties in the climb. | B.The climbing route. |
C.The terrible weather. | D.The unexpected incident. |
A.Puzzling. | B.Inspiring. | C.Exciting. | D.Frightening. |
【推荐2】My name is Ben. I am 13, and I live in Chantilly, VA. Just yesterday, June 24, I was at home watching my sister, who is mentally handicapped (弱智的). My father was at work while my mother and younger sister were at my mother’s office.
I had noticed the clouds growing darker and the ones to the east were turning green. At first I thought nothing of it, but then on TV, the weather reporter was announcing a big thunderstorm warning, one that usually brings hail (冰雹) and heavy rain.
After seeing that, I called my mother and told her about it. She told me I should not be worried because it was just a thunderstorm so we hung up. Then I looked outside and noticed it was almost pitch black at 4:30. I took a flashlight (手电筒) because I was sure the power was going to go out any second. Then no sooner had I gotten back from getting the flashlight than the weather reporter announced a Tornado Warning! I had never been in an actual tornado before, but I had seen some funnel clouds before in Montana.
Suddenly I realised I had no time to lose and I had to try to get my sister down the stairs to the basement in a matter of minutes. I surprisingly got her down there with no trouble at all and I raced back up the stairs to get the cordless phone. When I got back downstairs my dad called and told me to get downstairs immediately. I told him I was already down there! He said OK and we talked for a few seconds and then we hung up. Then_through the basement windows, the only thing_I_could_see_was_lightning.
I do not recall hearing of any deaths, or too many injuries so I guess everyone got a good head start to run to their basements. Either that or we are all lucky.
1. Ben took a flashlight because ________.A.he wanted to look for something | B.it was not bright enough in the room |
C.he wanted to take care of his sister | D.he was prepared for the power off |
A.By staying upstairs at home. | B.By running out of the house. |
C.By hiding in the basement. | D.By using the cordless phone. |
A.Worried. | B.Excited. | C.Disappointed. | D.Encouraged. |
A.It was completely dark outside. | B.They were scared. |
C.The flashlight was broken. | D.It was at midnight. |
【推荐3】Seventy years ago, in the city of Boston, there lived a small girl who had the naughty habit of running away. On a certain April morning, almost as soon as her mother finished buttoning her dress, Louisa May Alcott slid out of the house and up the street as fast as her feet could carry her.
It was a beautiful day, and she did not care so very much just where she went so long as she was having an adventure, all by herself. Suddenly she came upon some children who said they were going to a nice, tall ash heap to play. They asked her to join them. Louisa thought they were fine playmates, for when she grew hungry they shared some cold potatoes and bread crusts with her.
When she was tired of the ash heap she said goodbye to the children, thanked them for their kindness, and hop-skipped to the Common, where she must have wandered about for hours. All of a sudden, it began to grow dark. Then she wanted to get home. It frightened her when she could not find any street that looked natural. She was hungry and tired, too. She threw herself down on some door-steps to rest and to watch the lamplighter, for you must remember this was long before there was any gas or electricity in Boston. At this moment a big dog came along. He kissed her face and hands and then sat down beside her with a sober look in his eyes. Poor tired Louisa leaned against his neck and was fast asleep in no time. The dog kept very still. He did not want to wake her.
Pretty soon the town crier went by. He was ringing a bell and reading in a loud voice, from a paper in his hand, the description of a lost child. You see, Louisa's father and mother had missed her early in the forenoon and had looked for her in every place they could think of. Each hour they grew more worried, and at dusk they decided to hire this man to search the city.
When the runaway woke up and heard what the man was shouting— "Lost— Lost— A little girl, six years old, in a pink skirt, white hat, and new, green shoes" —she called out in the darkness, "Why— that's ME!" The town crier took Louisa by the hand and led her home, where you may be sure she was welcomed with joy.
1. The reason why Louisa thought the children were very nice playmates was that .A.they had been good friends | B.they asked her to play with them |
C.they shared with her some food | D.they all liked taking adventures |
A.A street performer. | B.A milkman. | C.A news reader. | D.A policeman. |
① Louisa couldn't find the way back home.
②Louisa returned home safe and sound.
③Louisa ran away and slid into the street one morning.
④Louisa came across some children in the street.
⑤The town crier searched the street for Louisa.
A.③④①⑤② | B.③①⑤④② | C.⑤②①④③ | D.⑤②④①③ |
【推荐1】I was cutting up lettuce in the kitchen when I suddenly remembered watching a video about soaking the lettuce stub (莴苣残余部分) in water to grow a whole new vegetable. So I took out a wide-mouthed cup and placed the stub into it, gave it a little water, and placed it by the window.
On a snowy morning I noticed the first sign. A first small leaf from its heart spread out. A tiny green flag of hope. Beaten, but not defeated. This lettuce was not done living! Within days, it was impossible to see the cuts where I had removed the leaves. The growth was explosive. And when I lifted the blossoming head out of the cup, tiny root threads fell down, seeking for the earth. What is growing here? Lettuce or hope?
If I were a lettuce in a similar condition, I’d want to skeptically assess where I found myself before committing to full growth. Yet for this lettuce, my inadequate offering of water and a place by a window was enough for it to decide to reclaim itself again. It grew in a cup of water, in faith. This is the heart of this lettuce: alive, strong and fearless. It deserved a name. I decided to call it Monty.
Monty wanted to grow, as we all do. I think I gave him a little love and freedom. Those two were all he needed to return to himself. I see joy in this lettuce. The return to self is always an expression of joy, which is life itself. This is the tendency of all living things.
Monty still lives in a cup, but I’m going to transplant him outside. He deserves to become his full self. The only problem I see now is my ability to support Monty. I hope I have enough of a green finger.
I’m surprised to find myself where I am. Maybe Monty is, too. I have the same choice as he does: give in or start again. The prospect of starting again is discouraging. But my lettuce-friend, Monty, leads the way. I can only hope to be as brave.
1. Why did the author soak the stub in water?A.To decorate the nice cup. | B.To hope that it would grow. |
C.To make a video in person. | D.To remove kitchen rubbish. |
A.This lettuce showed no sign of recovery. |
B.This lettuce was still fighting to survive. |
C.Tiny root thread climbed out of the cup. |
D.The cuts can still be seen where there used to be leaves. |
A.Hesitant. | B.Fearless. | C.Aimless. | D.Annoyed. |
A.Never being afraid to restart yourself. | B.Believing in yourself when in trouble. |
C.Enjoying your own life to the fullest. | D.Giving freedom to the heart in a way. |
Before the trip, I’d had my car fixed. When the office employee of the garage was writing up the bill, she noticed my Louisiana license plate. “You from New Orleans?” she asked. I said I was. “No charge,” she said, and firmly shook her head when I reached for my wallet. The next day I went for a haircut, and the same thing happened.
As my wife was studying in Florida, we decided to move there and tried to find a rental house that we could afford while also paying off a mortgage(抵押贷款) on our ruined house. We looked at many places, but none was satisfactory. We’d begun to accept that we’d have to live in extremely reduced circumstances for a while, when I got a very curious e-mail from a James Kennedy in California. He’d read some pieces I’d written about our sufferings for Slate, the online magazine, and wanted to give us (“no conditions attached”) a new house across the lake from New Orleans.
It sounded too good to be true, but I replied, thanking him for his exceptional generosity, that we had no plans to go back. Then a poet at the University of Florida offered to let his house to me while he went to England on his one-year paid leave. The rent was rather reasonable. I mentioned the poet’s offer to James Kennedy, and the next day he sent a check covering our entire rent for eight months.
Throughout this painful experience, the kindness of strangers has done much to bring back my faith in humanity. It’s almost worth losing your worldly possessions to be reminded that people are really nice when given half a chance.
1. The garage employee’s attitude toward the author was that of ____.
A.unconcern | B.sympathy | C.doubt | D.tolerance |
A.He was a writer of an online magazine. |
B.He was a poet at the University of Florida. |
C.He offered the author a new house free of charge. |
D.He learned about the author’s sufferings via e-mail. |
A.the author’s family was in financial difficulty. |
B.rents were comparatively reasonable despite the disaster. |
C.houses were difficult to find in the hurricane-stricken area. |
D.the mortgage on the ruined house was paid off by the bank. |
A.worldly possessions can be given up when necessary. |
B.generosity should be encouraged in some cases. |
C.people benefit from their sad stories. |
D.human beings are kind after all. |
【推荐3】The air we breathe is so freely available that we take it for granted. Yet without it we could not survive more than a few minutes. For the most part, the same air is available to everyone, and everyone needs it Some people use the air to live on while they sit around and fed sorry for themselves. Others breathe in the air and use the energy it provides to make a magnificent Jife for themselves.
Opportunity is the same way. It is everywhere. Opportunity is so freely available that we take it for granted. Yet opportunity alone is not enough to create success. Opportunity must be seized and acted upon in order to have value. So many people are so anxious to “get in” on a “ground floor opportunity”, as if the opportunity will do all the work. That is impossible.
Just as you need air to breathe, you need opportunity to make it. It takes more than just breathing in the fresh air of opportunity, however. You must make use of that opportunity. That is not up to the opportunity. That is up to you. It doesn’t matter what “floor” the opportunity is on. What matters is what you do with it.
1. What is the purpose of the first paragraph?A.Introduce the topic of the passage. |
B.Compare air to opportunity. |
C.Present the relationship between human and air. |
D.To show the importance of air. |
A.Air and Opportunity | B.Seize the Opportunity |
C.How to Succeed | D.Breathe the Fresh Air |
A.breathe in the air |
B.sit around and feel sorry |
C.be up to the opportunity |
D.make use of the opportunity and act on immediately |
【推荐1】Early when I was having my first go at being a father, our family lived in Philadelphia, and near our house there was a small playground where boys gathered for ball games. My son loved playing sports, but he was unprepared for what developed as his friends grew older.
After years together laughing and playing, several of the boys grew angry and unkind. Finally, they turned on my son, leaving him out of their games.
At first, I tried to encourage him so he would give the playground another go. But one Saturday morning I told him he could not come into the house. “You have to figure this out,” I said. “I’ll stay with you as long as you need, but I cannot let you just give up.” He cried. I kept saying: “You can do it.”
Did I do the right thing? Even now I’m not sure. He did go back to the playground. But while teaching him to stand up for himself, was I also passing along the prejudice that a boy should override his pain and never back down from a fight?
Research has found high school boys are more likely than girls to have been in a fight in the past year and boys are more likely to have been victims of violence.
When I was young, I went to an all-boys high school where the bigger and more violent guys ruled. One spring, after a school dance, a fight broke out. One of them, an older boy others said was “crazy,” was kicking another boy, who was seriously injured that night.
I have never forgotten that. As a psychologist, I have spoken with many young men who have had similarly sad experiences, and I have heard from many parents about the influence on their sons. When having stressful experiences like these, boys often pull away from their families.
The parents, understandably, feel anxious, but what they can do, must do, for their sons is never underestimate the power of listening to them, knowing them, and standing by them.
1. How did the author’s son feel during his first years on the playground?A.Proud. | B.Happy. | C.Unprepared. | D.Unwelcome. |
A.He comforted him. | B.He went there with him. |
C.He pushed him forward. | D.He had a talk with the other boys. |
A.To show the harm of violence. | B.To show violence is inborn in boys. |
C.To show fighting is common in boys. | D.To show uncontrolled violence at school. |
A.Leave them alone. | B.Set a good example for them. |
C.Teach them never to give up. | D.Understand and support them. |
【推荐2】When I was eight years old, I entered an art contest hosted by the International Fund for Animal Welfare (IFAW) and I won. I was so excited, but I didn’t even know what “endangered” meant at that time. That night, I asked my mom and we found out there were over 6,000 endangered species (物种)! I felt sad and angry. I told my mom I would like to help save them. She asked me, “How?” And I told her my plan.
She said once I painted ten, she’d create a Facebook page for me. To my mom’s surprise, I had 10 paintings done in 5 days. My Facebook page becomes a platform where I publish new works, share my opinions and raise people’s environmental awareness.
Facebook reporters came to interview me and wrote my story in the Community Voices and then many other websites shared it, making me shoot to fame overnight. My Facebook followers increased rapidly and some offered me money for an art exhibition. One of my paintings was sold at the Wolf Conservation Center by auction (拍卖) for $25,000 this summer.
At the age of 13, I have created more than three hundred paintings of endangered species. I use my website to sell them, and I also donate (捐赠) them and auction them to raise money to support the organizations I work with like IFAW, The Wolf Conservation Center in New York, Jane Goodall’s Roots & Shoots and REST. I did a lot of research before choosing those organizations because I wanted to make sure the money I donated would be used for protecting wildlife and their natural homes. Those organizations have helped my dreams come true. Up to now I have donated $69,000, and my goal is $100,000.
We all have an important role to play and if we work together, we will change the world. We need to be brave and original; we should stand out and speak up. It isn’t always easy or popular but being true to ourselves is the bravest thing we can do.
1. What plan did the author most probably tell her mother?A.To find out the number of endangered species. |
B.To raise people’s awareness of animal protection. |
C.To create a Facebook page for endangered species. |
D.To sell her paintings to help save endangered species. |
A.Highly stressed. | B.Make my fortune. | C.Widely known. | D.Go wild with delight. |
A.Talented and caring. | B.Patient and brave. |
C.Independent and creative. | D.Friendly and curious. |
A.She sells her paintings to them. |
B.She does a lot of research about them. |
C.She offers them money to protect wildlife. |
D.She paints endangered species for them. |
A.We should learn to be more creative. |
B.We should express our opinions bravely. |
C.We should raise money to support organizations. |
D.We should try our best to make the world a better place. |
【推荐3】Nicole is growing up every day. As time passes by, along with the new skills mastered has come a talent for getting into trouble. After the first birthday she gets more curious, fearless and mobile, while still clueless about the consequences of her actions. Sometimes when you enter the washing room,you’ll find the whole roll of toilet paper unrolled and lying on the ground. Sometimes when you enter the study you find she is emptying the contents of drawers onto the floor. One time when she was trying to pull a drawer out, it fell of on the floor. Immediately,she burst into a big cry.
I understand babies don’t know right from wrong, and their actions can’t be considered naughty,because they learn about the world by experimenting, observing cause and effete. I’m not going to stop her explorations most of the time, but I’m worried about the safety issue indeed. Before, I could deposit her in a safe spot lo keep both home and her from harm; now, no such paradise exists. And for the first time the question of discipline has come to my mind.
There is no question that children need discipline. According to Magda Cerber, an infant expert,“Lack of discipline is not kindness; it is neglect. ”In her eyes,loving our children does not mean keeping them happy all the time and avoiding power struggles. Often it is doing what feels hardest—saying“No” and meaning it.
For me, carrying out effective discipline is one of the toughest tasks of parenting, a seemingly never-ending test of wills between Nicole and me. But the good thing is that, although I continue to meet opposition from Nicole when I stop her potentially dangerous actions,I find gradually she accepts limits. Now she has got the idea that they’re things she can’t play with and can’t do. Can’t play with laptops. Can’t touch eclectic wires. Not everything into mouth.
”Waiting to introduce discipline into a child’s life much later than len months could make the task much more difficult. . . ”(What to Expect the First Year,by Heidi Murk-off) I am so grateful to have this book on hand. It makes a first-time mother a qualified caregiver.
1. In Paragraph 1,the author illustrates her idea byA.listing statistics | B.giving examples |
C.making comparisons | D.explaining causes |
A.doing the toughest things for them |
B.avoiding making them feel powerful |
C.setting limits for them when necessary |
D.saying“No” to them as often as possible |
A.She lacked experience as a new mother. |
B.She thought it easy to discipline Nicole. |
C.She slopped Nicole’s exploration all the time. |
D.She hesitated about disciplining her daughter. |
A.A news story. | B.A research report. |
C.A personal essay. | D.A persuasive letter. |
【推荐1】On the first Friday of every month the U.S. Bureau of Labor Statistics releases what’s known as the jobs report. It’s closely watched by economists, business leaders, investors and politicians because the report gives a sense of how the U.S. economy is doing.
The government says the U.S. economy added 250,000 jobs, better than what analysts and economists expected. Most of the new jobs were in the fields of healthcare, manufacturing, construction, as well as transportation and warehousing. The unemployment rate is a percentage of the U.S. workforce that doesn’t have a job. The report says it stayed the same in October 2018 as it did in September at 3.7 percent. That’s the lowest it’s been in 49 years, which is good news for workers and the economy. The report also finds that average wages increased. That’s significant because while the number of jobs has been growing for years now, wages have been a sticking point because they haven’t kept pace.
In October, though, the Labor Department says wages grew by 3.1 percent. That’s their fastest pace in nine years. With the U.S. midterm elections set for Tuesday, President Donald Trump, a Republican, called the jobs report incredible and said Americans should keep it going by voting for Republicans. Senator Chuck Schumer, a Democrat, said “numbers will mean little when average Americans see their healthcare costs go up because of Republican actions”. So he wants people to vote for Democrats. Regardless of where folks stand politically, one interesting side effect of strong job growth is the challenge it creates for companies to get people to work for them. Consider what retailers(零售商) are doing to attract seasonal or temporary workers with Christmas less than two months away.
1. The jobs report is highly concerned in the U.S. because ________.A.it interests politicians a lot |
B.investors want to get more profits |
C.economists expect to analyze the data |
D.it mirrors the economic condition of the country |
A.a goal easy to stick to | B.a task important to perform |
C.a situation hard to adapt to | D.a problem difficult to solve |
A.Disappointed. | B.Delighted. |
C.Indifferent. | D.Reserved. |
A.The jobs report is made use of for political purposes. |
B.Chuck Schumer thought much of the wage growth. |
C.Retailers are pessimistic about the sales during Christmas. |
D.Temporary workers find it hard to find a job before Christmas. |
【推荐2】Large rainforests are extremely important ecosystems on our planet. They are home to a large number of animal and plant species, and they absorb vast amounts of carbon dioxide, which helps reduce global warming. These biggest ones in the world are a sight to observe.
Daintree Rainforest
The main river of the rainforest is the Daintree River, and it also includes the Daintree National Park. If you are wondering why everything seems to share the name, the reason is simple-Richard Daintree was a famous Australian geologist and photographer. Plenty of options will take you there, including a ferry.
Valdivian Temperate Rainforest
This rainforest is known to be extremely foggy and humid, but some interesting species live there. Since it is on the coast, you can witness ice sheets and glaciers as well. Getting to the rainforest is most accessible from Santiago, the capital of Chile, and a train ride or a bus is a preferred option.
Congo Rainforest
This rainforest also features a large number of different plant and animal species, including gorillas, forest elephants, and lions. Visiting this rainforest is also recommended by using a tour company, preferably by finding one in the Republic of Congo.
Amazon Rainforest
It is estimated that we can find 16,000 different tree species in the Amazon rainforest.
When it comes to other plants, animals, and insects, the numbers are even more impressive. The especially interesting thing is that there is still a large number of undiscovered species. A tour guide is advised since going through the rainforest can be dangerous, with predatory creatures(食肉动物)running around.
1. Which of the following is named after a person?A.Daintree Rainforest. | B.The capital of Chile. |
C.The Republic of Congo. | D.Amazon Rainforest. |
A.By ferry. | B.By train. |
C.By plane. | D.By bike. |
A.A diary. | B.A brochure. |
C.A novel. | D.A report. |
【推荐3】For nearly thirty years I did parent programs in all of the fifty states, and regardless of the community, there was always a shortage of fathers attending, usually by a 10:1 (mothersfathers) ratio. Maybe they were all tending to business, and they obviously didn't think school was any of their business.
The world is now flat. How's that for a sea change? As Thomas Friedman described it in his book The World Is Flat twenty-five years ago, the power structure of the world consisted of highs and lows. The countries with the power and knowledge were at the top of the mountains and the rest were down in the valleys. A handful of countries (the United States, Britain, Germany, and Japan) ruled the world's economy because they monopolize (垄断)the information and power.
Then came the Internet. Suddenly the countries down in the valleys were connected to the information network and the work flow. These included India, Eastern Europe, South Korea, Brazil, and China. Don't believe it? Walk into a supermarket and pick up any ten toys, checking each for where it was made, My last count: China, ten out of ten. The world's workforce became “flattened”. No more disconnected valleys.
Since 2000, U.S. manufacturing has lost six million jobs, one-third of its workforce, most of them males. For the first time in history, women hold the majority of jobs in the U.S.
The only people who don't understand the sea change in business are the fathers and sons still clinging to the image of the male who doesn't need to play school—just play ball. It's been thirty years since that idea had any wings, but too many males are still trying to make it fly. Once the only thing that mattered for men was what they could get out of the ground with their hands. Now it's what they can get out of their heads that counts. And without classroom success, today's male faces an impossible challenge from both intelligent women on the home front and foreigners willing to do the same job for less while sitting in an office in Bangalore or Singapore.
1. Based on Friedman's description, why is the world becoming flat?A.US which is the most powerful country controls the information. |
B.Knowledge is shared globally with the development of the Internet. |
C.Goods made in China and other countries are increasingly popular. |
D.The mountains and valleys are flooded by the sea water these days. |
A.be positively involved in boys' schooling for academic success |
B.focus mainly on the physical development of their boys |
C.spend more time playing with their boys to get their belief fly |
D.do more housework because the mothers are more intelligent |
A.A news story. | B.A book review. |
C.An educational book. | D.An economic report. |