A new study ____the marmoset’s reputation for admirable community values. Researchers report that these caregivers share their food more generously with little ones in private than when they are surrounded by the watchful eyes of other community members.
A.shines B.damages C.affects D.protects
高二英语单项填空困难题
A new study ____the marmoset’s reputation for admirable community values. Researchers report that these caregivers share their food more generously with little ones in private than when they are surrounded by the watchful eyes of other community members.
A.shines B.damages C.affects D.protects
高二英语单项填空困难题查看答案及解析
The sooner we students the new school life,the better it will be for our studies.
A.admit to B.adjust to
C.devote to D.look into
高二英语单项填空中等难度题查看答案及解析
The sooner we students___to the new school, the better it will be___our studies.
| A．adapt;for | B．adjust;to | C．adopt;for | D．admit;to |
高二英语单项填空简单题查看答案及解析
For anyone still doubting the belief that our emotions influence our physical health, a new study from New Zealand should be able to settle the matter. It reports that the physical wounds of healthy seniors healed more quickly if they wrote about their most upsetting experiences.
This confirms the results of a 2010 study, and extends those findings to cover older adults—a group that is likely to suffer wounds (as from surgery), and one with less access to other ways of lowering tension (such as exercise).
Reported in the journal Psychosomatic Medicine, a research team led by the University of Auckland’s Elizabeth Broadbent made a study featuring 50 healthy adults ranging in age from 64 to 97. They were asked to write for 20 minutes per day for three consecutive(连续的) days.
Half were asked to write about the most upsetting experience in their life, describing their deepest thoughts, feelings, and emotions about the events, ideally not previously shared with others. The others were asked to write about their daily activities without mentioning emotions, opinions or beliefs.
Two weeks after the third day of writing, all participants received a standard 4mm skin biopsy(皮下活体组织检查) on their inner arm. The very tiny wounds caused by the biopsy were photographed regularly over the following days to determine the rate at which they healed.
On the 11th day after the biopsy, the wounds completely healed on 76.2 percent of those who had done the expressive writing. That was true of only 42.1 percent of those who had written about everyday activities.
“The biological and psychological mechanisms(机体) behind this effect remain unclear,” the researchers wrote, noting that those who had done the expressive writing did not report lower stress levels or fewer depressive symptoms than the others in the control group. Even if they weren’t consciously aware of feeling more relaxed or positive, the expressive writing appeared to have caused some sort of bodily reaction—probably involving their immune systems—that hastened their recovery.
1.What was the difference between the two groups of participants in the study?
A. What they wrote.
B. Where they wrote.
C. When they wrote.
D. How often they wrote.
2.According to the text, the experiment lasted .
A. about three days B. about a month
C. about two weeks D. about ten days
3.The underlined word “hastened” in the last paragraph is closest in meaning to .
A. speeded B. showed C. limited D. ruined
4. What would be the best title of the text?
A. Sharing with others can reduce stress.
B. Skin biopsies are likely to cause wounds.
C. Expressive writing heals physical wounds.
D. Upsetting experiences influence our emotions.
高二英语阅读理解中等难度题查看答案及解析
The professor ______ sit in his study for hours when he worked on the new project.
A. could B. might C. would D. should
高二英语单项填空中等难度题查看答案及解析
The United States will introduce a new and comprehensive(综合的) exam for students who seek to study in American and other English-speaking countries, Xinhua News Agency reported from New York.
The exam, which stands for a great change from the current English level test, was disclosed by Theresa Chang Wei Jen, associate director of the International Service of the US College Board, America’s leading educational organization.
The Advanced Placement International English Language (APIEL) will be offered for the first time throughout the world on May 10, 2002, said Jen.
However, the APIEL is a strange title to most Chinese students, and it is unlikely to soon gain the similarity of other already existing exams, such as the TOEFL(Test of English as a Foreign Language), the GRE(Graduate Record Examination), or the IELTS(International English Language Testing System).
“I have never heard of such a test and I would prefer the IELTS if I need another exam,” said Xu Jingyan, a graduating student from Beijing University of Aeronautics and Astronautics, who wants to study in England and has already taken the TOEFL.
Most of Xu’s classmates have never heard of the APIEL. “The APIEL is designed for international students who wish to get university studies in English-speaking countries, including the United States, Britain, Canada, and Australia.” said Jen.
The APIEL has been adopted, said Jen, because the TOEFL can no longer accurately reflect the abilities of students of using the English language comprehensively in an academic environment. Xinhua reported that a fairly large number of foreign students who earned high scores in TOEFL exam turned out to be very ordinary educational performers after admission.
Compared with the TOEFL, the APIEL measures a student’s ability to read, write, speak and understand English through testing his or her skills in listening comprehension, speaking with accuracy(精确) and resourcefulness, and writing with clarity(清晰) and fluency, Jen said.
1.The United States will introduce a new exam because _______.
A. more and more students want to get further education in the USA
B. the Chinese people pay special attention to English studies with China’s entry into the WTO
C. the already existing exam systems seem to be far from perfect
D. it will bring the US government quite a lot of money
2.Which of the following statements is TRUE according to the selection？
A. It will take quite a period of time for people to accept the APIEL.
B. The TOEFL is more popular with the Chinese than the IELTS.
C. A student will have to take the APIEL if he or she wants to study in English—speaking countries from 2002.
D. Chinese students will prefer the IELTS rather than the APIEL even in the future.
3.The underlined word current in the second paragraph means _______.
A. modern B. present
C. standard D. formal
4.Which is the best title for this news report?
A. The Key to English-speaking Countries
B. The Four Skills in Learning English
C. TOEFL, IELTS and GRE to be Out of Date
D. New Exam Designed for Students
高二英语阅读理解中等难度题查看答案及解析
Air pollution may be causing baldness, scientists have shown for the first time. A new study found that fine particulate matter emitted by cars would damage the skin that holds hair follicles (毛囊) in place. A series of laboratory tests on human cells showed that levels of the crucial proteins needed for hair to grow and be retained decreased when they were exposed to pollution particles. While there is a growing body of evidence showing how these tiny particles can damage internal health, including by entering the bloodstream through the lungs, this is the first to demonstrate such a risk to the surface of the body.
The study was conducted by exposing cells from the human follicle dermal papilla cells(HFDPCs), to various concentrations of PM10-like dust and diesel particles (柴油颗粒). After 24 hours the researchers performed a process, known as western blotting, to detect the levels of specific proteins in the cells.
The results showed that the presence of PM10 and diesel particles decreased levels of B-catenin, the protein responsible for hair growth. The study also revealed that the levels of three other proteins — cyclin D1, cyclin E and CDK2, which are responsible for hair growth and hair retention, were decreased by PM10-like dust and diesel particles in a “dose-dependent” manner.
Dr Hyuk Chul Kwon, who led the study at the Future Science Research Centre, said, “While the link between air pollution and serious diseases such as cancer and lung diseases is well established, there is little-to-no research on the effect of particulate matter exposure on the human skin and hair in particular. Our research explains the mode of action of air pollutants on HFDPCs, showing how the most common air pollutants lead to hair loss.”
Sources of PM include the burning of fossil fuels — petrol and diesel, as well as other solid fuels,and other industrial activities such as building, mining and the manufacturing of building materials like bricks.
“While it is difficult to escape from the surrounding pollution, limiting the time for walking in busy streets, especially during rush hour, should help reduce exposure,” said Dr Kwon. “If you are exercising outdoors, try to do so in areas that are less polluted and do not spend too much time waiting at traffic hot spots such as traffic lights.”
1.What did the new study find?
A.Air pollution can do great harm to our lungs.
B.The color of our skin can be influenced by air pollution.
C.Serious air pollution can probably prevent hair from growing.
D.Air pollution can affect hair growth by entering the bloodstream.
2.What is western blotting used to do?
A.To discover the protein helpful for hair growth.
B.To show the protein contents in the cells.
C.To compare different proteins in the cells.
D.To analyze the composition of hair cells.
3.What can we learn from Dr Hyuk Chul Kwon’s words?
A.His new research is superior to previous research.
B.The research he conducted is really of great importance.
C.The results of his new research need to be further improved.
D.A link between air pollution and diseases needs to be established.
4.What does Dr Kwon advise us to do?
A.To do as much exercise as possible.
B.To take action to reduce air pollution.
C.To avoid being exposed to air pollution.
D.To take public transport to avoid traffic jams.
高二英语阅读理解中等难度题查看答案及解析
The brain is a remarkable part.It's responsible for thoughts and feelings.Now a new study finds that going through tough times as a kid also can have an impact.The adult brains of people who lived through lots of stress before the age of six—and then became depressed or anxious as teenagers—were different compared with adults who had an easier childhood.It seems that teens changed the shape of their brains by internalizing (使内在化) the stresses experienced years earlier.
Researchers already knew that the shape and size of a child's brain can change in response to lots of stress.They also knew that adults were more likely to be depressed if，as kids，they'd lived in poverty.Some studies showed that these depressed adults had unusual changes in their brain shape.But no one had tested if the early stress and later brain changes were linked.
Scientists in England studied almost 500 boys from birth until the ages of 18 to 21.Sarah Jensen is one of the new study's authors.Almost all of the boys her team studied experienced some hard times as kids.And，she concludes，“This is not necessarily harmful.”To some extent，that's just life.What can be dangerous，she says，is when children experience too many forms of difficulties.Her team's new data suggest that the tougher the childhood，the stronger the impact on the brain might be.
What's happening in the world around us relates to how we feel.Her team linked more childhood stress to more depression.Still，she notes，it's possible that if you find support for anxiety or depression，you might be able to prevent the changes seen here.“If you can change the environment，you can change the course of things，”Sarah says.So，she recommends，if teens develop anxiety or depression，it's good to ask for psychological doctors to give advice.
1.When people had a hard childhood， ．
A. they will have a brave attitude to life
B. their way of thinking may be strange
C. they will be good at dealing with stress
D. the shape of their brain may be changed
2.What is the breakthrough of the new research?
A. The size of the brain can change.
B. The brain can be influenced by stress.
C. Poverty can affect the brain's shape in future.
D. Changes in brain are connected with earlier hardship.
3.It's a problem when children ．
A. had a lonely childhood
B. led a peaceful childhood
C. got different kinds of hardship
D. experienced limited hard times
4.For teenagers with anxiety，Sarah suggests .
A. they adapt to their life
B. they seek professional help
C. they talk to friends or relatives
D. they become confident and optimistic
高二英语阅读理解中等难度题查看答案及解析
The brain is a remarkable part.It's responsible for thoughts and feelings.Now a new study finds that going through tough times as a kid also can have an impact.The adult brains of people who lived through lots of stress before the age of six—and then became depressed or anxious as teenagers—were different compared with adults who had an easier childhood.It seems that teens changed the shape of their brains by internalizing (使内在化) the stresses experienced years earlier.
Researchers already knew that the shape and size of a child's brain can change in response to lots of stress.They also knew that adults were more likely to be depressed if，as kids，they'd lived in poverty.Some studies showed that these depressed adults had unusual changes in their brain shape.But no one had tested if the early stress and later brain changes were linked.
Scientists in England studied almost 500 boys from birth until the ages of 18 to 21.Sarah Jensen is one of the new study's authors.Almost all of the boys her team studied experienced some hard times as kids.And，she concludes，“This is not necessarily harmful.”To some extent，that's just life.What can be dangerous，she says，is when children experience too many forms of difficulties.Her team's new data suggest that the tougher the childhood，the stronger the impact on the brain might be.
What's happening in the world around us relates to how we feel.Her team linked more childhood stress to more depression.Still，she notes，it's possible that if you find support for anxiety or depression，you might be able to prevent the changes seen here.“If you can change the environment，you can change the course of things，”Sarah says.So，she recommends，if teens develop anxiety or depression，it's good to ask for psychological doctors to give advice.
1.When people had a hard childhood， ．
A.they will have a brave attitude to life
B.their way of thinking may be strange
C.they will be good at dealing with stress
D.the shape of their brain may be changed
2.What is the breakthrough of the new research?
A.The size of the brain can change.
B.The brain can be influenced by stress.
C.Poverty can affect the brain's shape in future.
D.Changes in brain are connected with earlier hardship.
3.It's a problem when children ．
A.had a lonely childhood
B.led a peaceful childhood
C.got different kinds of hardship
D.experienced limited hard times
4.For teenagers with anxiety，Sarah suggests .
A.they adapt to their life
B.they seek professional help
C.they talk to friends or relatives
D.they become confident and optimistic
高二英语阅读理解中等难度题查看答案及解析
Sharks use their good sense of smell to search for prey（猎物）. But a new study shows that the rising levels of carbon dioxide in the ocean could reduce sharks' ability to find food. It's bad news for a healthy ocean. Sharks are top predators（掠食动物）and are like the ocean's weed controllers.
Dixson works at the Woods Hole Oceanographic Institution in Massachusetts. Her earlier work has shown that clown fish in acidifying（酸化的）water act strangely. "We want to expand this research to sharks .because we know how important it is for sharks to find their food through their sense of smell," said Dixson.
Her team started by placing sharks in each of three different pools for five days. Each pool had a different level of carbon dioxide in it. The first had the same amount as today's ocean water. The second had a level of carbon dioxide that scientists expect to reach by 2050. The third pool had the highest level of carbon dioxide that could develop by the year 2100.
Sharks weren't allowed to eat any food while in the pools. This made sure that they would be hungry. Then, Dixson released the sharks one at a time into a pool with two side-by-side streams of flowing water. In one stream, the researchers pumped water, in which a dead squid had been overnight. This water smelled strongly of the squid. The other stream contained ocean water with no scent（气味）. Because each stream flowed at the same rate and in the same direction, the squid smell stayed in its stream. The sharks could choose to swim in either stream.
Sharks that had been swimming for five days in pools of regular ocean water spent more than 60 percent of their time in the squid-scented stream. The same was true for sharks that had been in water with the carbon dioxide level that could develop by the year 2050. But sharks exposed to the highest level of carbon dioxide spent just 15 percent of their time in the squid-scented stream.
1.Why did the writer mention the sharks smell at the beginning of the passage?
A. Because the writer appreciates their ability to find food.
B. Because the writer considers them dangerous to human beings.
C. Because the writer intends to show how to control weed in the ocean.
D. Because the writer worries about the sharks in the ocean.
2.What is Paragraph 3 mainly about?
A. What the ocean in the future will be like.
B. Who helped Dixson conduct the study.
C. What kinds of pools were used during the study.
D. What the levels of carbon dioxide will be at in the ocean in the future.
3.The researchers pumped water where a dead squid had been overnight to ______.
A. help the sharks look for food
B. test the sharks' sense of smell
C. prove that sharks like eating squids
D. explain why carbon dioxide in the ocean affects sharks
4.What does the underlined sentence in the last paragraph suggest?
A. Sharks like the squid-scented stream better.
B. Sharks like the stream with the high level of carbon dioxide.
C. Sharks spent 15% of their time in the squid-scented stream.
D. The high level of carbon dioxide can affect the sharks ability to smell.
高二英语阅读理解中等难度题查看答案及解析