Did you know people who live in different parts of China have different habits and preferences? For example, people from southern China prefer to eat vegetables, while people from north China like to eat meat. According to a new study in a journal, gene variations (基因变异) might be responsible for these differences. Researchers from China’s BGI collected genetic information from 141, 431 Chinese women, who came from 31 provinces and consisted of 36 ethnic minority groups.
The researchers found that there are six gene frequencies that are different among people from both northern and southern China. They found that natural selection has played an important role in the ways that people living in different regions of China have developed, affecting their food preferences, immunities(免疫力)to illness and physical features.
A variation of the gene FADS2 is more commonly found in northern people. It helps people metabolize (新陈代谢) fatty acids, which suggests a diet that is rich in flesh. This is due to climate differences. Northern China is at a higher latitude. This weather is difficult to grow vegetables in. Therefore, northerners tend to eat more meat.
The study also found differences in the immune systems of both groups. Most people in southern China carry the gene CR1, which protects against malaria. Malaria was once quite common in southern China. In order to survive, the genes of people in the south evolved to fight against this disease. However, people in the south are also more sensitive to certain illnesses, as they lack the genes to stop them.
Genes can also cause physical differences between northerners and southerners. Most northerners have the ABCC11 gene, which causes dry earwax, less body smell and fewer sweats. These physical differences are also more beneficial to living in cold environments. Southerners are less likely to have this gene, as it did not develop in their population.
1.What did the new study focus on?
A.Regions. B.Vegetables.
C.Gene variations. D.Ethnic minority groups.
2.What is the main function of the gene FADS2?
A.It helps store fat. B.It helps digest meat.
C.It helps gain weight. D.It helps treat illness.
3.According to the study, most northerners ______.
A.are immune to malaria B.catch blood-borne illnesses easily
C.have no body smell D.sweat less frequently
4.How many differences did the study find related to genes?
A.Two. B.Three.
C.Four. D.Five.
高三英语阅读理解困难题
Did you know that people who live in different parts of China have different habits and preferences？
For example， people from southern China prefer to eat vegetables， while people from north China like to eat meat． But what causes these differences？
According to a new study published in the journal Cell in October， gene variations （基因变异） might be responsible for these differences， Xinhua reported．
In the study， researchers from Chinese genome-sequencing （基因组测序） firm BGI collected genetic information from 141，431 Chinese women． The women came from 31 provinces and consisted of 36 ethnic minority groups．
The researchers found that there are six gene frequencies that are different among people from both northern and southern China． They found that natural selection has played an important role in the ways that people living in different regions of China have evolved， affecting their food preferences， immunities （免疫性） to illness and physical traits （特点）， the New York Times reported．
The researchers reported that a variation of the gene FADS2 is more commonly found in northern people than it is in southern people． It helps people metabolize （新陈代谢） fatty acids （脂肪酸）， which suggests a diet that is rich in meat． According to Xinhua， this is due to climate differences． Northern China is at a higher latitude， which means it's cold and dry throughout the whole year． This weather is difficult to grow vegetables in． Therefore， northerners tend to eat more meat．
The study also found differences in the immune systems of both groups． Most people in southern China carry the gene CR1， which protects against malaria （疟疾）． This is because malaria was once quite common in southern China． In order to survive， the genes of people in the south evolved to fight against this disease． However， people in the south are also more vulnerable to certain blood-borne illnesses， as they lack the genes to stop them．
Genes can also cause physical differences between northerners and southerners． Most northerners have the ABCC11 gene， which causes dry earwax （耳屎）， less body odor and fewer sweat secretions （分泌）， The New York Times reported． These physical differences are also more beneficial to living in cold environments． Southerners are less likely to have this gene， as it did not evolve in their population．
1.What's the new study mainly about？ ______
A. The genes of Chinese minority groups．
B. Habits of people from different regions of China．
C. Differences in the genes of people from different parts of China．
D. Physical differences between northerners and southerners．
2.A variation of the gene FADS2can help our body ______ ．
A. store fat B. digest meat
C. fight disease D. control body temperature
3.The underlined word "vulnerable" in Paragraph 7 is closest in meaning to ______ ．
A. unprotected B. uninterested
C. generous D. responsible
4.Compared with people in south China， most northerners ______ ．
a．are immune to malaria
b．catch blood-borne illnesses easily
c．have less body odor
d．sweat less frequently
A. ab B. bc
C. bd D. cd
高三英语阅读理解中等难度题查看答案及解析
Did you know people who live in different parts of China have different habits and preferences? For example, people from southern China prefer to eat vegetables, while people from north China like to eat meat. According to a new study in a journal, gene variations (基因变异) might be responsible for these differences. Researchers from China’s BGI collected genetic information from 141, 431 Chinese women, who came from 31 provinces and consisted of 36 ethnic minority groups.
The researchers found that there are six gene frequencies that are different among people from both northern and southern China. They found that natural selection has played an important role in the ways that people living in different regions of China have developed, affecting their food preferences, immunities(免疫力)to illness and physical features.
A variation of the gene FADS2 is more commonly found in northern people. It helps people metabolize (新陈代谢) fatty acids, which suggests a diet that is rich in flesh. This is due to climate differences. Northern China is at a higher latitude. This weather is difficult to grow vegetables in. Therefore, northerners tend to eat more meat.
The study also found differences in the immune systems of both groups. Most people in southern China carry the gene CR1, which protects against malaria. Malaria was once quite common in southern China. In order to survive, the genes of people in the south evolved to fight against this disease. However, people in the south are also more sensitive to certain illnesses, as they lack the genes to stop them.
Genes can also cause physical differences between northerners and southerners. Most northerners have the ABCC11 gene, which causes dry earwax, less body smell and fewer sweats. These physical differences are also more beneficial to living in cold environments. Southerners are less likely to have this gene, as it did not develop in their population.
1.What did the new study focus on?
A.Regions. B.Vegetables.
C.Gene variations. D.Ethnic minority groups.
2.What is the main function of the gene FADS2?
A.It helps store fat. B.It helps digest meat.
C.It helps gain weight. D.It helps treat illness.
3.According to the study, most northerners ______.
A.are immune to malaria B.catch blood-borne illnesses easily
C.have no body smell D.sweat less frequently
4.How many differences did the study find related to genes?
A.Two. B.Three.
C.Four. D.Five.
高三英语阅读理解困难题查看答案及解析
Did you know that there are actually people who have paid for a flight to the moon? In the future, there will be a lot more opportunities to travel to faraway places than now… perhaps even as far as the moon. As people adventure further and further away and as planes, trains, cars, and rocket ships become faster, is it safer to have these vehicles controlled by humans or by computers?
While many flights by plane are controlled automatically by machines, most people today wouldn’t let their car drive itself. That’s because currently the autopilot function on your car can only keep it on the same course you are travelling on. It won’t turn the car right or left. It won’t stop if an animal jumps in the way. However, cars today can sense when something is too close and warn the driver with flashing lights and alarms. Many cars also have GPS（global positioning systems） that tell drivers which road to take and when to turn. These systems, unlike human drivers, never get lost. In the future, it is easy to believe that your car will be better able to drive itself with the aid of computers that can determine the position of your car and the speed it should travel at.
In addition to computers being ‘smarter’ than people regarding the best way to go or knowing how close another vehicle is, computers don’t get sick, tired, or angry. This means they won’t make the same mistakes that people make when they are not having a good day. While responding with emotion is a good thing when choosing the best way to deal with a friend’s personal problem, it may not be such a good thing when deciding what to do at the wheel of a fast-moving vehicle.
So what are the disadvantages of autopilot systems? Maybe one disadvantage is that a small computer problem could cause a serious accident. It could also be argued that in unexpected situations, computers might not be able to respond appropriately; some decisions require human emotions. Another problem might be that if everything were controlled by computers or robots, people wouldn’t have any jobs.
1.What is the best title for the passage?
A. The Development of Autopilot
B. Technology of Future Travel
C. A New Driving System
D. Computerized Cars
2.Which of the following is the disadvantage of an autopilot system?
A. It won’t make the same mistakes as people do.
B. It can point out the best route for the driver.
C. It might not respond properly to unexpected situations.
D. It does not have human emotions to influence its function.
3.If some falling rocks roll down toward your car, the autopilot on your car will_______.
A. inform you of the danger
B. turn the car right or left
C. do nothing about it
D. stop the car
4.What’s the author’s attitude towards the autopilot?
A. Approving. B. Objective. C. Negative. D. Doubtful.
高三英语阅读理解中等难度题查看答案及解析
You must be aware that it’s here _____we found evidence of some of the earliest people who lived in this part of the world.
| A．where | B．that | C．/ | D．what |
高三英语单项填空中等难度题查看答案及解析
You must be aware that it’s here _____we found evidence of some of the earliest people who lived in this part of the world.
A．where B．that C．/ D．what
高三英语单项填空中等难度题查看答案及解析
Not many people know that U.S. President Calvin Coolidge did not always live in the White House. Sometimes he lived in the nearby Willard Hotel.
Once, in the middle of a night, the President awoke to see a thief searching his clothes. Coolidge calmy spoke up from the darkness, “I wish you wouldn’t take that watch.”
“Why?” asked the shocked man.
Coolidged answered, “Take it near the window and read what is engraved on the back of it.”
The man read, “Presented to Calvin Coolidged, Speaker of the House, by the Massachusetts General Court.” He was very surprised!
“Are you President Coolidge?” he asked. He had never thought he would find the president sleeping in a hotel!
“Yes, I am” Coolidge said. Then he asked, “Why are you doing this,Son?”
The young man explained that he and a friend traveled to Washington during their college vacation. They spent all of their money and had no money to pay the hotel bill and the train tickets back to school.
Coolidge added up those fees. It came to $32. That may not sound like much now, but it was a big sum then. “I’ll give you the $32 as a loan,” the President said, “And I expect you to pay me back.”
The youth thanked him. Coolidge left him with this warning: “Son, you are a nice boy, you are better than you are acting. You are starting down the wrong road. Just remember who you are.”
It wasn’t until after the death of Mr.Coolidge that this story was allowed to come out. It was first published in the Los Angeles Times. And the most interesting of all is that the President’s notes show that the young man was indeed better than he was acting. He repaid the $32 loan in full.
1..The president stopped the youth from stealing the watch because________
A. It was his favorite watch.
B. He wanted to give some money to the youth
C. He wanted to help the young man from getting into trouble
D. He used it for work and daily life
2. It can be inferred from the passage that________
A. the youth’s family was in financial difficulty
B. hotel fees were rather expensive at that time
C. the youth never connected with the president again
D. the youth learned a lesson from his experience with the president
3. How did people first get to know the story of the president with the youth?
A. From the president himself
B. From a newspaper
C. From the youth’s notes
D. From the youth himself
4. We can learn from the passage that________
A. possessions can be given up when necessary
B. generosity should be encouraged in some cases
C. people can benefit from their unforgettable experiences
D. an act of kindness may change a person’s life
高三英语阅读理解中等难度题查看答案及解析
In Shangri-la, the peaceful world, who had discovered how to stay young forever.
A.did people live B.lived people
C.people lived D.were living people
高三英语单项填空中等难度题查看答案及解析
We probably all know people, either at work or in our personal lives, who are really good listeners. No matter what kind of situation we’re in, they always seem to know just what to say and how to say it so that we’re not offended(被冒犯) or upset. We probably also know people who are masters at managing their emotions(情绪). They don’t get angry in stressful situations. Instead, they have the ability to calmly look at a problem and find a solution. They take criticism(批评) well, and they know when to use it to improve their performance.
People like these who have a high degree of emotional intelligence, or EI(情商). They know themselves very well, and they’re also able to sense the emotional needs of others.
As more and more people accept that emotional intelligence is just as important to professional success as technical(专业的) ability, companies are increasingly using EI when they hire and promote(提拔) someone. For example, one large cosmetics (化妆品) company recently changed their hiring process for salespeople to choose candidates(被选的人) based on emotional intelligence. The result? Salespeople hired with the new system have sold, on average, $91,000 more than salespeople selected under the old system.
Emotional intelligence is the ability to recognize your emotions, understand what they are telling you, and realize how your emotions affect people around you. Emotional intelligence also involves your perception (洞察力) of others: when you understand how they feel, this allows you to manage relationships more effectively.
People with high emotional intelligence are usually successful in most things they do. Why? Because they are the ones that others want on their team. When people with high EI send an email, it get answered. When they need help, they get it. Because they make others feel good, they go through life much more easily than people who are easily angered or upset.
The good news is that emotional intelligence can be taught and developed. Many books and tests are available to help you determine your current EI, and identify where you may need to do some work.
1.According to the passage, we’re all probably impressed by people who _____.
A. are ready to help others
B. are very successful in their lives
C. have high emotional intelligence
D. know how to control their temper
2.By mentioning the cosmetics company, the author tries to _____.
A. stress the importance of emotional intelligence
B. speak highly of its new salespeople
C. show its effective hiring system
D. explain what improvements it has made
3.The underlined word “they” in the fourth paragraph refers to “_____”.
A. your emotions B. people around you
C. effective relationships D. your opinions of others
4.Which statement is TRUE about people with high EI?
A. They are usually good speakers.
B. They are born to be sensitive and intelligent.
C. They don’t get angry in any situation.
D. They can understand others’ feelings well.
5.What’s most likely to be discussed in the paragraph that follows?
A. What emotional intelligence is.
B. How emotional intelligence can be improved.
C. Many books on emotional intelligence.
D. More people with high emotional intelligence.
高三英语阅读理解中等难度题查看答案及解析
If you want to find a parttime job or learn something different during your spare time, you can have a look at the following jobs offered by the DC Public Library.
Teens of Distinction Program
The DC Public Library offers parttime jobs for teens through the Teens of Distinction Program. Teens work 1012 hours per week all year long, helping the library with important tasks and projects. The Teens of Distinction Program is now hiring! To apply, you have to：
● be a DC resident
● have and maintain at least a 2.5 grade point average
● be 16 to 18 years old
● be able to work 1012 hours per week
● be able to work for DCPL for at least 9 months
Oh, and of course you have to impress us with your wonderful personality!
Teen Volunteer Opportunities
If you want to earn community service hours for school, Youth202 is a good choice.
Youth202 is a radio program created by youth and for youth. You can learn radio production skills, interview people around you, and help keep other teens to learn news, events, and anything else you think is important.
Summer Youth Employment Program (SYEP)
Every summer, teens can work here to help library customers organize books and learn lots of new skills, such as program planning, writing and media production.
On Friday, January 25 at 12：15 p．m., the application for the 2014 SYEP will be open to teens between the ages of 14 and 21.
Applications will be processed on a firstcome, firstserved basis. Space is limited this year, so teens are encouraged to apply early, and remember not to miss the deadline, Saturday, February 16.
1.Working for the Teens of Distinction Program, teenagers will ________．
①become a DC resident
② work 1012 hours per week
③ work for DCPL for at least 9 months
④ have a wonderful personality
A. ③④ B. ①②③
C. ②③ D. ①③④
2.If a teenager wants to interview people around him, he should apply for a job at ________．
A. Teens of Distinction Program
B. Youth202
C. Teens Library
D. Summer Youth Employment Program
3.What can’t teenagers get in Summer Youth Employment Program?
A. Community service hours.
B. Program planning skills.
C. Writing skills.
D. Book management skills.
4.Who has the biggest chance to work for the 2014 SYEP?
A. A teenager who is smart.
B. A teenager who is popular.
C. A teenager who applies early.
D. A teenager who gets high grades in exams.
5.The aim of the text is to ________．
A. introduce the DC Public Library
B. describe the job of library workers
C. teach how to apply for parttime jobs
D. offer teenager parttime jobs in the DC Public Library
高三英语阅读理解中等难度题查看答案及解析
People living on parts of the south coast of England face a serious problem .In 1993, the owners of a large hotel and of several houses discovered, to their horror, that their gardens had disappeared overnight. The sea had eaten into the soft limestone(石灰石)cliffs on which they had been built. While experts were studying the problem, the hotel and several houses disappeared altogether, sliding down the cliff and into the sea.
Erosion(侵蚀)of the white cliffs along the south coast of England has always been a problem but it has become more serious in recent years. Dozens of homes have had to be abandoned as the sea has crept farther and farther inland(向内陆).Experts have studied the areas and most affected and have drawn up a map for local people, forecasting the year in which their homes will be swallowed up by the hungry sea.
Angry owners have called on the government to erect sea defenses to protect their homes. Government surveyors have pointed out that in most cases, this is impossible. New sea walls would cost hundreds of millions of pounds and would merely make the waves and currents go further along the coast, shifting the problem from on area to another. The danger is likely to continue, they say, until the waves reach an inland area of hard rock that will not be eaten as limestone is .Meanwhile, if you want to buy a cheap house with an uncertain future, apply to a house agent in one of the threatened areas on the south coast of England. You can get a house for a knockdown price but it w=may turn out to be a knockdown home.
1.What is the cause of the problem that people living on parts of the south coast of England face?
A. The rising of the sea levelB. The experts’ lack of knowledge.
C. The washing-away of limestone cliffs. D. The disappearance of hotels, houses and gardens.
2.The experts’ duty on the problem of erosion can_____.
A. warn people whose homes are in danger. B. provide an effective way to slow it down.
C. help to prevent it from worsening. D. lead to its eventual solution.
3.It is not practical to build sea defenses to protect against erosion because ______.
A. house agents along the coast do not support the idea.
B. it is too costly and will endanger neighboring areas.
C. the government is too slow in taking action.
D. they will be easily knocked down by waves and currents.
4.According to the author, when buying a house along the south coast of England, people should_____.
A. take the quality of the house into consideration.
B. guard against being cheated by the house agent.
C. examine the house carefully before making a decision.
D. be aware of the potential danger involved.
高三英语阅读理解困难题查看答案及解析