For some time the expert __________ people of the health risks caused by passive smoking. He says he won't stop until all the smokers around him decide to quit smoking.
A. is warned B. is warning C. has been warning D. has been warned
高三英语单项填空中等难度题
For some time the expert __________ people of the health risks caused by passive smoking. He says he won't stop until all the smokers around him decide to quit smoking.
A. is warned B. is warning C. has been warning D. has been warned
高三英语单项填空中等难度题查看答案及解析
Some colors people see late at night could cause signs of the condition mental health experts call clinical depression(临床抑郁症). That was the finding of a study that builds on earlier study findings. They show that individuals who live or work in low levels of light overnight can develop clinical depression.
Doctors use the word clinical depression to describe severe form of depression. Signs may include loss of interest or pleasure in most activities, low energy levels and thoughts of death or suicide.
In the new study, American investigators designed an experiment that exposed hamsters（仓鼠）to different colors. The researchers chose hamsters because they are nocturnal, which means they sleep during the day and are active at night. The animals were separated into four groups. One group of hamsters was kept in the dark during their night-time period. Another group was placed in front of a blue light, a third group slept in front of a white light, while a fourth was put in front of a red light. After four weeks, the researchers noted how much sugary water the hamsters drank. They found that the most depressed animals drank the least amount of water.
Randy Nelson, at Ohio State University, says animals that slept in blue and white light appeared to be the most depressed. “What we saw is that these animals didn’t show any sleep interruptions at all but they did mess up biological clock (生物钟) genes and they did show depressive sign but if they were in the dim red light, they did not.” He says there’s a lot of blue in white light. This explains why the blue light and white light hamsters appear to be more depressed than the hamsters seeing red light or darkness.
1. From the text we know that ________ made the hamster feel depressed.
A. the amount of the water
B. the colour of the light
C. the loss of pleasure
D. the level of energy
2. What was the purpose of the experiment on hamsters?
A. To show how well they slept.
B. To see how much sugary water they drank.
C. To explain why they liked dark colours.
D. To find out what caused the depression on them.
3.The author explains the clinical depression by _________.
A. reporting an experiment process
B. presenting research data
C. setting down general rules
D. giving his own experience
4.Where can we probably find the text?
A. In a science magazine.
B. In a physics textbook
C. In a tourist guidebook.
D. In an official announcement.
高三英语阅读理解中等难度题查看答案及解析
Some colors people see late at night could cause signs of the condition mental health experts call clinical depression(临床抑郁症). That was the finding of a study that builds on earlier study findings. They show that individuals who live or work in low levels of light overnight can develop clinical depression.
Doctors use the word clinical depression to describe severe form of depression. Signs may include loss of interest or pleasure in most activities, low energy levels and thoughts of death or suicide.
In the new study, American investigators designed an experiment that exposed hamsters（仓鼠）to different colors. The researchers chose hamsters because they are nocturnal, which means they sleep during the day and are active at night. The animals were separated into four groups. One group of hamsters was kept in the dark during their night-time period. Another group was placed in front of a blue light, a third group slept in front of a white light, while a fourth was put in front of a red light. After four weeks, the researchers noted how much sugary water the hamsters drank. They found that the most depressed animals drank the least amount of water.
Randy Nelson, at Ohio State University, says animals that slept in blue and white light appeared to be the most depressed. “What we saw is that these animals didn’t show any sleep interruptions at all but they did mess up biological clock (生物钟) genes and they did show depressive sign but if they were in the dim red light, they did not.” He says there’s a lot of blue in white light. This explains why the blue light and white light hamsters appear to be more depressed than the hamsters seeing red light or darkness.
1. From the text we know that ________ made the hamster feel depressed.
A. the amount of the water
B. the colour of the light
C. the loss of pleasure
D. the level of energy
2.What was the purpose of the experiment on hamsters?
A. To show how well they slept.
B. To see how much sugary water they drank.
C. To explain why they liked dark colours.
D. To find out what caused the depression on them.
3. The author explains the clinical depression by _________.
A. reporting an experiment process
B. presenting research data
C. setting down general rules
D. giving his own experience
4.Where can we probably find the text?
A. In a science magazine.
B. In a physics textbook
C. In a tourist guidebook.
D. In an official announcement.
高三英语阅读理解中等难度题查看答案及解析
Some colors people see late at night could cause signs of the condition mental health experts call clinical depression(临床抑郁症). That was the finding of a study that builds on earlier study findings. They show that individuals who live or work in low levels of light overnight can develop clinical depression.
Doctors use the word clinical depression to describe severe form of depression. Signs may include loss of interest or pleasure in most activities, low energy levels and thoughts of death or suicide.
In the new study, American investigators designed an experiment that exposed hamsters（仓鼠）to different colors. The researchers chose hamsters because they are nocturnal, which means they sleep during the day and are active at night. The animals were separated into four groups. One group of hamsters was kept in the dark during their night-time period. Another group was placed in front of a blue light, a third group slept in front of a white light, while a fourth was put in front of a red light. After four weeks, the researchers noted how much sugary water the hamsters drank. They found that the most depressed animals drank the least amount of water.
Randy Nelson, at Ohio State University, says animals that slept in blue and white light appeared to be the most depressed. “What we saw is that these animals didn’t show any sleep interruptions at all but they did mess up biological clock (生物钟) genes and they did show depressive sign but if they were in the dim red light, they did not.” He says there’s a lot of blue in white light. This explains why the blue light and white light hamsters appear to be more depressed than the hamsters seeing red light or darkness.
1. From the text we know that ________ made the hamster feel depressed.
A. the amount of the water B. the colour of the light
C. the loss of pleasure D. the level of energy
2.What was the purpose of the experiment on hamsters?
A. To show how well they slept.
B. To see how much sugary water they drank.
C. To explain why they liked dark colours.
D. To find out what caused the depression on them.
3. The author explains the clinical depression by _________.
A. reporting an experiment process
B. presenting research data
C. setting down general rules
D. giving his own experience
4.Where can we probably find the text?
A. In a science magazine.
B. In a physics textbook
C. In a tourist guidebook.
D. In an official announcement.
高三英语阅读理解中等难度题查看答案及解析
Some colors people see late at night could cause signs of the condition mental health experts call clinical depression(临床抑郁症). That was the finding of a study that builds on earlier study findings. They show that individuals who live or work in low levels of light overnight can develop clinical depression.
Doctors use the word clinical depression to describe severe form of depression. Signs may include loss of interest or pleasure in most activities, low energy levels and thoughts of death or suicide.
In the new study, American investigators designed an experiment that exposed hamsters（仓鼠）to different colors. The researchers chose hamsters because they are nocturnal, which means they sleep during the day and are active at night. The animals were separated into four groups. One group of hamsters was kept in the dark during their night-time period. Another group was placed in front of a blue light, a third group slept in front of a white light, while a fourth was put in front of a red light. After four weeks, the researchers noted how much sugary water the hamsters drank. They found that the most depressed animals drank the least amount of water.
Randy Nelson, at Ohio State University, says animals that slept in blue and white light appeared to be the most depressed. “What we saw is that these animals didn’t show any sleep interruptions at all but they did mess up biological clock (生物钟) genes and they did show depressive sign but if they were in the dim red light, they did not.” He says there’s a lot of blue in white light. This explains why the blue light and white light hamsters appear to be more depressed than the hamsters seeing red light or darkness.
1.From the text we know that ________ made the hamster feel depressed.
A. the amount of the water B. the color of the light
C. the loss of pleasure D. the level of energy
2.What was the purpose of the experiment on hamsters?
A. To show how well they slept.
B. To see how much sugary water they drank.
C. To explain why they liked dark colors.
D. To find out what caused the depression on them.
3.The author explains the clinical depression by _________.
A. reporting an experiment process
B. presenting research data
C. setting down general rules
D. giving his own experience
4.Where can we probably find the text?
A. In a tourist guidebook. B. In a physics textbook
C. In a science magazine. D. In an official announcement.
高三英语阅读理解中等难度题查看答案及解析
A deadly strain of avian flu may have passed between people for the first time, experts believe.The avian influenza A (H7N9) virus is thought to have been transmitted between father and daughter in eastern China, according to research published online by the British Medical Journal (BMJ).
The findings provide the strongest evidence yet of H7N9 transmission between humans since its discover in February, but its ability to transmit itself was deemed "limited and non-sustainable" by the Chinese researchers behind the study.At the end of June 133 cases had been reported, including 43 deaths. Most infections have been among people visiting markets, selling live birds or among those who had contact with live poultry（家禽） in the seven to 10 days before becoming ill.
The latest study examined the case of a 60-year-old father who regularly visited a live poultry market and became ill five to six days after his last visit in March. He was admitted to hospital with fever, cough and shortness of breath. Despite intensive care treatment he died of multiple organ failure on 4 May. His 32-year-old daughter, who was previously healthy, looked after him at his bedside before he was admitted to intensive care. She had no known exposure to live poultry before falling ill with a very high temperature, cough and fever. The daughter developed symptoms six days after her last contact with her father and was admitted to hospital where she died of multiple organ failure on 24 April.
Follow-up investigations(调查) uncovered almost genetically identical virus strains from each patient, suggesting transmission from father to daughter. Another 43 people were also tested who had had close contact with the father, daughter or both.
Dr Peter Horby, senior clinical research fellow at the Oxford University Clinical Research Unit in Hanoi, Vietnam, said of the study: "The most likely source of infection for the daughter was her father, during the period that she cared for him while he was ill. "He said “limited person to person transmission had been reported for other strains like H5N1 , H7N7, and the pig origin flu virus H3N2. Those strains had been around for more than a decade but have not progressed any further down the path towards a world-wide virus.” “Limited human-to-human transmission of H7N9 virus is therefore not surprising, but strengthening to monitor it was still needed,” Dr Horby added.
1.What’s the main idea of the passage ?
A. The findings about H7N9 transmission only between father and daughter .
B. H7N9 transmission may be spreading between people .
C. 133 cases of H7N9 transmission have been reported .
D. Both the father and daughter died of multiple organ failure.
2.The reason why the daughter died of multiple organ failure was that _____.
A. she fell ill with a very high temperature, cough and fever.
B. she was exposed to live poultry before falling ill.
C. she had close contact with the father while caring for her sick father .
D. she sold live birds in five to six days before falling ill .
3.Which of the following is Wrong about H7N9 transmission?
A. It was limited and non-sustainable
B. It was person to person transmission
C. It wasn’t progressed any further down the path towards a world-wide virus.
D. It happened between father and daughter .
4.The underlined word s “was deemed” in paragraph 2 probably means _______
A. was decreased B. was regarded as
C. was thought of D. was developed
5.What type of writing is the article likely to be ?
A. A news report. B. Popular science.
C.A medical report D.A medical findings
高三英语阅读理解中等难度题查看答案及解析
We know that too much of the wrong kind of food can be bad for our health, but for some people having a food allergy, eating certain things can actually be harmful. Now it is seemingly affecting more and more of us.
An allergy is caused by the immune system fighting substances in the environment, known as allergens, that it should see as harmless. 1.It means people have to spend their lives following strict dietary restrictions and worrying about the ingredients of everything they consume. We often hear about people having allergies to dairy products and to peanuts. Last year a teenager died after suffering a fatal allergic reaction from eating a baguette containing sesame seeds. 2.
Research has found that this problem is particularly affecting children. 3. Dr Alexandra Santos from King’s College London says food allergy now affects about 7 percent of children in the UK, and 9 percent of those in Australia.
4. Dr Santos says, the increase in allergies is not simply the effect of society becoming more aware of them and better at diagnosing them. 5. She adds that possible factors are pollution, dietary changes and less exposure to bacteria, which change how our immune systems respond.
A.So what might be the cause?
B.It seems to be more environmental.
C.Similarly, food allergic reaction is deadly.
D.This led to a call for better food-labeling laws.
E.Besides, more adults are suffering from food allergies.
F.However, food allergies can cause life-threatening reactions.
G.More and more of them are having allergic reactions to certain foodstuffs.
高三英语七选五中等难度题查看答案及解析
Experts have been warning___of the health risks caused by passive smoking.
| A．at a time | B．at one time |
| C．for some time | D．for the time |
高三英语单项填空中等难度题查看答案及解析
For some time now, Chinese people, under the leadership of CPC, ______ the contents of the Scientific Development Theory in the course of practicing socialism in China.
| A．had been improving | B．have been improving |
| C．were improving | D．improved |
高三英语单项填空简单题查看答案及解析
Experts have been warning ___ of the health risks caused by passive smoking.
A.at a time B.at one time
C.for some time D.for the time
高三英语单项填空中等难度题查看答案及解析