導學全程練創(chuàng)優(yōu)訓練系列答案科目：高中英語 來源： 題型：閱讀理解
A chemical important of brain development may play a role in explaining why some people are genetically (由基因決定地) likely to suffer from anxiety and could lead to new treatments, U．S. researchers said.
They said highly anxious rats which were kept had very low levels of a brain chemical called fibroblast growth factor 2 or FGF2, compared with rats that were more relaxed. But when they improved the anxious rats' living conditions—giving them new toys to explore and a bigger cage to live in—levels of this brain chemical increased and they became less anxious.
“The levels of this brain chemical increased in response to the experiences that the rats were exposed to. It also decreased their anxiety.”Javier Perez of the University o f Michigan said in a telephone interview. “It made them behave the same way as the rats that were relaxed，”he said.
In a former study of people who were severely depressed before they died, the team found the gene that makes FGF2 was producing very low levels of the growth factor, which is known primarily for organizing the brain during development and repairing it after injury.
Perez thinks the brain chemical may be a marker for genetic vulnerability (脆弱性) to anxiety and depression. But it can also respond to changes in the environment in a positive way, possibly by preserving new brain cells.
While both the calm and anxious rats produced the same number of new brain cells, these cells were less likely to survive in the high－anxiety rats, the team found. Giving the rats better living conditions or injecting them with FGF2 helped improve cell survival.
“This discovery may pave the way for new, more specific treatments for anxiety that will not be based on sedation(藥物鎮(zhèn)靜), but will instead fight the real cause of the disease，” Dr. Pier Vincenzo Piazza from France said in a statement.
6. We know from the passage that with the levels of FGF2 decreasing, the rats will ________.
A. die of anxiety soon B. suffer from a headache
C. become more relaxed D. become more anxious
7. What's the better way to increase the levels of FGF2?
A. Introducing more companions to the anxious rats.
B. Improving the living conditions of the anxious rats.
C. Injecting the anxious rats with some special medicine.
D. Giving the anxious rats more time to relax.
8. The underlined word “it” in Paragraph 4 refers to ________.
A. the team B. the gene
C. the growth factor D. the brain
9. What's the main influence of the new discovery?
A. Doctors won't use any medicine to cure anxiety.
B. Doctors may treat anxiety more efficiently.
C. Doctors will find the real cause of anxiety.
D. Doctors may find new medicine for anxiety.
10. Which of the following would be the most suitable title for the passage?
A. Anxious rats and relaxed rats
B. Anxiety—a serious mental disease
C. Scientific research into the brain is important
D. Brain chemical may play key role in anxiety
查看答案和解析>>
科目：高中英語 來源：2011-2012學年江蘇漣水中學高一下學期第一次模塊檢測英語卷（帶解析） 題型：閱讀理解
It was New Year’s Night. An aged man was standing at a window. He raised his mournful eyes towards the deep blue sky, where the stars were floating like white lilies on the surface of a clear calm lake. Then he cast them on the earth, where few more hopeless people than himself now moved towards their certain goal --- the tomb. He had already passed sixty of the stages leading to it, and he had brought from his journey nothing but errors and remorse. Now his health was poor, his mind vacant, his heart sorrowful, and his old age short of comforts.
The days of his youth appeared like dreams before him, and he recalled the serious moment when his father placed him at the entrance of the two roads --- one leading to a peaceful, sunny place, covered with flowers, fruits and filled with soft, sweet songs; the other leading to a deep, dark cave, which was endless, where poison flowed instead of water and where devils and poisonous snakes hissed and crawled.
He looked towards the sky and cried painfully, “O youth, return! O my father, place me once more at the entrance to life, and I’ll choose the better way!” But both his father and the days of his youth had passed away.
He saw the lights flowing away in the darkness. These were the days of his wasted life; he saw a star fall down from the sky and disappeared, and this was the symbol of himself. His regret, which was like a sharp arrow, struck deeply into his heart. Then he remembered his friends in his childhood, who entered on life together with him. But they had made their way to success and were now honored and happy on this New Year’s Night.
The clock in the high church tower struck and the sound made him remember his parents’ early love for him. They had taught him and prayed to God for his good. But he chose the wrong way. With shame and grief he dared no longer look towards that heaven where his father lived. His darkened eyes were full of tears, and with a despairing effort, he burst out a cry: “Come back, my early days! Come back!”
And his youth did return, for all this was only a dream which he had on New Year’s Night. He was still young though his faults were real; he had not yet entered the deep, dark cave, and he was still free to walk on the road which leads to the peaceful and sunny land.
Those who still wander on the entrance of life, hesitating to choose the bright road, remember that when years are passed and your feet stumble on the dark mountains, you will cry bitterly, but in vain: “O youth, return! Oh give me back my early days!”
【小題1】We can learn from the passage that ____.
| A．the man returned from a long journey and regretted what he had done |
| B．the man didn’t enter the deep, dark cave when he was young |
| C．the man was deserted by his parents when he was only a child |
| D．the man found it no use crying over the spilt milk |
| A．He wants to tell people it’s time to recall the past |
| B．he suggests the aged man will have a bright future |
| C．He tries to stress the man’s sad feeling |
| D．He expects people to share the man’s emotion |
| A．sorrowful, fearful and regretful | B．hopeful, cheerful and peaceful |
| C．regretful, painful and disappointed | D．disappointed, regretful and hopeful |
| A．encourage young people to take the right road | B．help the old man to pick up his confidence |
| C．describe the old man’s unsuccessful experience | D．show his compassion for the aged man |
查看答案和解析>>
科目：高中英語 來源：2011-2012學年北京市日壇中學高一3月檢測英語試卷 題型：閱讀理解
Many young people in America go to camps when they are out of school during the summer. They are offered a chance to explore different things: nature, sports, music, technology ——even business and economy.
One such program for high school students in the Pacific Northwest is called Washington Business Week. The program began in 1975. Officials say forty-five thousand people have attended Washington Business Week. Other states now have similar camps.
Washington Business Week describes itself as a way to learn more about how to plan for the future in an ever-changing economy. Students form an executive(行政的) management (管理) team. They lead an imaginary company to financial success.
The camp is held at three colleges in Washington State. The high school students live in the college housing. The cost of the camp is almost three hundred dollars, but families can receive financial assistance(援助).
Some business camps are free. These are for students from poor areas. The National Foundation for Teaching Entrepreneurship（企業(yè)家）(NFTE) is an organization based in New York City that supports such camps. It has programs around the United States and its Web site lists international partners in China, Tanzania and a few other countries. NFTE says it has served more than one hundred thousand young people since 1987.
Among other business camps is Camp C.E.O.. C.E.O is an chief executive officer. And this camp is for girls only. Camp C.E.O. is supported by the Girl Scouts of America and takes place for one week each summer.
The camp took place last month in Tennessee. The girls worked with successful businesswomen
from different industries. The girls learned how to build a business and develop an idea into a product. And, we imagine, they also had some fun.
【小題1】 In Washington Business Week, students successfully run a company_______.
| A．that they are working in | B．that belongs to the American government |
| C．that does not actually exist | D．that was once shut down |
| A．It offers financial help to all students. |
| B．It has programs in America and some other countries. |
| C．It was organized by many rich New Yorkers. |
| D．One of its aims is to train students to be business managers. |
| A．The Americans are good at enjoying their lives in many camps. |
| B．The young Americans are living a happy life in camps. |
| C．The Americans pay attention to developing the students’ abilities. |
| D．It is easier to organize business camps in America than other countries. |
查看答案和解析>>
科目：高中英語 來源：2010-2011學年山東省臨沂市高三上學期期中考試英語卷 題型：閱讀理解
America’s greatest technological achievement, the Hoover Dam, now has a companion piece, a bridge held up by the longest arch in the Western Hemisphere（半球）. The Mike O’Callaghan-Pat Tillman Memorial Bridge, which opened this month and connects the U.S. states of Arizona and Nevada, crosses the vast chasm（峽谷）890 feet above the Colorado River that is controlled by the dam.
The striking 1,900-foot-long structure will improve traffic in the region and help protect the dam from being destroyed. It is the seventh highest bridge in the world, behind four in China, one in Papua New Guinea and one in the US state of Colorado.
“The Hoover Dam is the greatest civil engineering achievement in America’s history,” said the bridge project manager Dave Zanatell. “Our goal was not to outdo or outshine it. Our goal was to, in a respectful way, do something that would be great for our generation and that would stand besides Hoover Dam in a respectful and quality way that would become a part of Hoover’s legacy（遺產）.”
Just as the Hoover Dam was built in the heart of the Great Depression（大蕭條）and was seen as an example of the nation’s can-do spirit, some hope this project can also provide some uplift.
The bridge is surprising: at 1,050 feet, its support arch holds up a roadway that lies on 300-foot-long concrete pillars（柱子）, some of the tallest in the world. It contains 16 million pounds of steel.
The idea of the bridge came into being in the 1960s because the top of the Hoover Dam has been a narrow two-lane road that is the fastest route from Arizona to Las Vegas and then the Pacific Northwest and Canada.
Access to the dam from each direction is a dangerously winding route, but massive trucks and passenger vehicles shared it for decades. During the day, when thousands of tourists travel to the dam from Las Vegas three times as many accidents as on a normal road will happen.
The bridge has a sidewalk on the side facing the dam. The wall on both sides is 54 inches high, so walkers can take photos there.
1.Which of the following is true of the Hoover Dam?
A. It was completed recently.
B. It was built during the hard times.
C. It has the longest arch.
D. It’s the seventh highest dam in the world.
2.What is one of the purposes of building the bridge?
A. To protect the dam. B. To save the cultures.
C. To outdo the dam. D. To develop the tourism.
3.The underlined word “uplift” in Paragraph 4 means _____.
A. lift of the heavy object B. support in money
C. spiritual encouragement D. instruction in technology
4.Which of the followings shows the right position of the bridge and dam?
5.The text is mainly about ______.
A. the Hoover Dam
B. American western development
C. a tour along the Colorado River
D. a recently built bridge
查看答案和解析>>
科目：高中英語 來源：2014屆北京市高一3月檢測英語試題 題型：閱讀理解
Many young people in America go to camps when they are out of school during the summer. They are offered a chance to explore different things: nature, sports, music, technology ——even business and economy.
One such program for high school students in the Pacific Northwest is called Washington Business Week. The program began in 1975. Officials say forty-five thousand people have attended Washington Business Week. Other states now have similar camps.
Washington Business Week describes itself as a way to learn more about how to plan for the future in an ever-changing economy. Students form an executive(行政的) management (管理) team. They lead an imaginary company to financial success.
The camp is held at three colleges in Washington State. The high school students live in the college housing. The cost of the camp is almost three hundred dollars, but families can receive financial assistance(援助).
Some business camps are free. These are for students from poor areas. The National Foundation for Teaching Entrepreneurship（企業(yè)家）(NFTE) is an organization based in New York City that supports such camps. It has programs around the United States and its Web site lists international partners in China, Tanzania and a few other countries. NFTE says it has served more than one hundred thousand young people since 1987.
Among other business camps is Camp C.E.O.. C.E.O is an chief executive officer. And this camp is for girls only. Camp C.E.O. is supported by the Girl Scouts of America and takes place for one week each summer.
The camp took place last month in Tennessee. The girls worked with successful businesswomen
from different industries. The girls learned how to build a business and develop an idea into a product. And, we imagine, they also had some fun.
1. In Washington Business Week, students successfully run a company_______.
|
A．that they are working in |
B．that belongs to the American government |
|
C．that does not actually exist |
D．that was once shut down |
2.Which of the following is True about NFTE?
|
A．It offers financial help to all students. |
|
B．It has programs in America and some other countries. |
|
C．It was organized by many rich New Yorkers. |
|
D．One of its aims is to train students to be business managers. |
3.What can we conclude from the passage ?
|
A．The Americans are good at enjoying their lives in many camps. |
|
B．The young Americans are living a happy life in camps. |
|
C．The Americans pay attention to developing the students’ abilities. |
|
D．It is easier to organize business camps in America than other countries. |
4.Which of the following is the best title of the passage?
A. Summer camps for students B. Summer camps for future C.E.O.
C. Summer camps being popular D. Summer camps in the world
查看答案和解析>>
湖北省互聯網違法和不良信息舉報平臺 | 網上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權舉報專區(qū)
違法和不良信息舉報電話：027-86699610 舉報郵箱：58377363@163.com
