Health officials issued a waring over common energy-saving l一ghtbulbs(灯泡) after research showed some types could potentially harm the skin and may even raise the risk of cancer.
A study by the Health Protection Agency (HPA) found that some eco-friendly lightbuulbs release levels of ultraviolet (UV) (紫外线) radiation that are above recognized safety limits. The agency urged people who work with lamps nearby to avoid spending more than one hour within a foot of the eco-friendly bulbs. The warning was directed at those using desk lamps for long periods, such as jewellery makers, and others who might have lights close to their faces, such as car mechanics.
John O’Hagan, a scientist at the HPA’s centre for radiation, chemical and environmental dangers, began tests on the ligthbulbs after patient groups raised concern about them. Among the groups were patients with a skin disease called lupus, which makes people highly sensitive to light.
The tests measured UV light from the lamps and found the highest levels of UV radiation, measured 2cm from the lightbulbs, were equivalent to being outside in direct sunlight in the summer. The most immediate risk from the lightbulbs is a reddening of the skin similar to sunburn, but there is also a small increased risk of skin cancer associated with this, again similar to that of sunburn.
The risk of health problems from the lightbulbs was not so high that people should remove them from their homes. People are advised to avoid using open lightbulbs for long close work until the problem is sorted out. It has confirmed that the government will not be reviewing its strategy on introducing energy efficient lightbulbs.
1.The underlined word “equivalent” in paragraph 4 most probably means ______.
A.equal | B.vital | C.relevant | D.harmful |
2.In order not to be harmed by the UV radiation from some lightbulbs, people should ______.
A.stop using eco-friendly lightbulbs at home |
B.avoid using open lightbulbs for long close work |
C.take care not to expose their skin to direct sunlight |
D.urge the government to ban the use of lightbulbs |
3.In the next part, the author would most probably further explain _____.
A.why people needn’t remove the lightbulbs from their homes |
B.how researchers have planned to sort out the problem |
C.how the government has responded to HPA’s discovery |
D.how long people should work close to the open lightbulbs |
4.We can learn from the passage that ____.
A.health officials issued a warning over common lightbulbs. |
B.jewellery makers should avoid working with the eco-friendly bulbs for more than one hour |
C.John O’Hagan did tests on the lightbulbs with some patients |
D.people are advised to avoid using open lightbulbs for long close work |
高三英语阅读理解中等难度题
Health officials issued a waring over common energy-saving l一ghtbulbs(灯泡) after research showed some types could potentially harm the skin and may even raise the risk of cancer.
A study by the Health Protection Agency (HPA) found that some eco-friendly lightbuulbs release levels of ultraviolet (UV) (紫外线) radiation that are above recognized safety limits. The agency urged people who work with lamps nearby to avoid spending more than one hour within a foot of the eco-friendly bulbs. The warning was directed at those using desk lamps for long periods, such as jewellery makers, and others who might have lights close to their faces, such as car mechanics.
John O’Hagan, a scientist at the HPA’s centre for radiation, chemical and environmental dangers, began tests on the ligthbulbs after patient groups raised concern about them. Among the groups were patients with a skin disease called lupus, which makes people highly sensitive to light.
The tests measured UV light from the lamps and found the highest levels of UV radiation, measured 2cm from the lightbulbs, were equivalent to being outside in direct sunlight in the summer. The most immediate risk from the lightbulbs is a reddening of the skin similar to sunburn, but there is also a small increased risk of skin cancer associated with this, again similar to that of sunburn.
The risk of health problems from the lightbulbs was not so high that people should remove them from their homes. People are advised to avoid using open lightbulbs for long close work until the problem is sorted out. It has confirmed that the government will not be reviewing its strategy on introducing energy efficient lightbulbs.
1.The underlined word “equivalent” in paragraph 4 most probably means ______.
A.equal | B.vital | C.relevant | D.harmful |
2.In order not to be harmed by the UV radiation from some lightbulbs, people should ______.
A.stop using eco-friendly lightbulbs at home |
B.avoid using open lightbulbs for long close work |
C.take care not to expose their skin to direct sunlight |
D.urge the government to ban the use of lightbulbs |
3.In the next part, the author would most probably further explain _____.
A.why people needn’t remove the lightbulbs from their homes |
B.how researchers have planned to sort out the problem |
C.how the government has responded to HPA’s discovery |
D.how long people should work close to the open lightbulbs |
4.We can learn from the passage that ____.
A.health officials issued a warning over common lightbulbs. |
B.jewellery makers should avoid working with the eco-friendly bulbs for more than one hour |
C.John O’Hagan did tests on the lightbulbs with some patients |
D.people are advised to avoid using open lightbulbs for long close work |
高三英语阅读理解中等难度题查看答案及解析
The delay in diagnosis often leads to worse health issues that _______ potentially preventable if they had been given the access in the country where they were working.
A. could have been B. should have been C. must have been D. need have been
高三英语单项填空困难题查看答案及解析
United States health officials say an estimated 80,000 people died of influenza (流感) and problems resulting from the flu last winter, making it the worst season since 1977. The director for the U.S.Centers for Disease Control and Prevention (CDC) reported the number to The Associated Press. Health experts were expecting the winter of 2017-2018 to be a bad year for flu deaths, but not that.
Doctor William Schaffner is an expert on vaccines, at Vanderbilt University in Tennessee. Schaffner noted that 80,000 deaths are nearly twice as much as what health officials once considered a “bad year”.
CDC officials say that between 12,000 and 56,000 Americans die every year from flu-related causes, but they do not have an exact count of how many people die from the flu each year. Influenza is a relatively common disease and not always listed on death records as the official cause of death. While last winter was a bad flu season in the U.S., it was not the worst. The 1918 flu lasted nearly two years. Historians estimate that the disease was to blame for between 500,000 to 700,000 deaths during that period. The exact number is still not known.
One thing that made the 2017-2018 flu season so bad was that the flu virus was strong. Usually the disease kills the very young, the very old or those who are already sick. However, last winter, the flu killed many healthy Americans. Another thing that made the flu season so deadly was that the flu vaccine was not as effective as experts had predicted. Drug makers have made changes to the vaccine. Even though the vaccine did not work well last year, health experts still strongly suggest getting vaccinated.
1.What can we learn about influenza in the first paragraph?
A.The winter of 2017-2018 saw the deadliest flu in history.
B.Effective cures should be found to deal with influenza.
C.Health experts had assumed flu would be severer.
D.More people died of influenza than expected in the winter of 2017-2018.
2.How many deaths did the health officials expect in a bad year?
A.80,000. B.40,000.
C.60,000. D.20,000.
3.Why can't CDC officials give an exact number of deaths from flu?
A.Because flu is always considered as a common disease.
B.Because people usually don't take flu seriously.
C.Because CDC officials are unwilling to count the deaths.
D.Because flu is not always listed on death records.
4.What do experts recommend people to do in the last paragraph?
A.Change the vaccine. B.Avoid using vaccine.
C.Get vaccinated. D.Do research on vaccine.
高三英语阅读理解中等难度题查看答案及解析
BEIJING - The country's top health officials state that an international charity's decisions not to give millions of dollars to Chinese organizations that fight AIDS and other diseases will not bring about the end of those organizations.
The Global Fund to Fight AIDS, Tuberculosis and Malaria announced on Monday that it will withhold $95 million from the $270 million in grants(补助金) it had planned to give China. That decision came as the result of months of discussion between the charity and Chinese officials.
On the mainland, a large number of programs meant to prevent the spread of HIV/AIDS have received money from the Global Fund. Many observers now fear that the announced cut will undermine those organizations' work.
Chen Zhu, the minister of health, said officials have found a way to limit the harm. “In the coming five years, the Chinese government will constantly increase its financial support of social organizations, particularly those that work to control and prevent HIV/AIDS.” Chen said while addressing the 6th Experience Exchange Conference of International Cooperation Program on HIV/AIDS in China on Monday.
In a recent survey of more than 200 organizations taking part in the fight against HIV/AIDS on the mainland, nearly 80 percent of them said they had received grants from the Global Fund. About 83 percent of them said they will find it difficult to continue operating without financial support from abroad, it said. Official statistics showed the Global Fund has given China $548 million in grants since 2003.
Xia Jing, leader of a Beijing-based grassroots organization dedicated to controlling AIDS, said: “We were like children fostered by foreign milk. As foreign money began to be withdrawn from China, we were faced with serious financial hardships.” Han Mengjie, executive director of Global Fund China Programs, said the Chinese government has fully recognized the important role social organizations play in controlling diseases. “The work done and efforts made by such organizations must be sustained for a long time to supplement the government's intervention work,”he said, “We have to face the truth that international money for AIDS control will gradually leave China and to prepare ourselves to deal with that.”
1.Which sentence is the closest to the title of the passage?
A.China will have to fight against AIDS alone, though facing financial hardship.
B.Chinese organizations of fighting against AIDS and other diseases won’t receive money from international charity.
C.The fight against AIDS won’t be stopped by the withdraw of money from charity in China.
D.Chinese organizations of fighting against AIDS and other diseases will be reduced to despair.
2.According to Han Mengjie, which of the following is the most possible action to be taken?
A.Chinese government is expected to seek help from social organization to control diseases
B.Chinese government shouldn’t rely too much on social organizations
C.Social organizations’ work and efforts won’t make much difference to the fight against AID
D.We Chinese are well prepared for the international money’s withdraw from China
3.How much money will China have received from Global Fund by the end of this year ?
A.$818 B.$548 C.$ 270 D.$723
4.What implication can we get from the passage?
A.Many people are not optimistic about the control of AIDS.
B.Chinese government will take an active part in AIDS control.
C.International charity are treating China unfairly.
D.Most organization related with AIDS control had received money from the Global Fund before this announcement on Monday.
高三英语阅读理解中等难度题查看答案及解析
United States health officials are urging people to stop using electronic cigarettes, known as e-cigarettes. The call to action came after such products were linked to health problems. Five deaths have also been reported. E-cigarettes are a popular substitute for smoking products. The electronic devices heat liquid that includes flavoring, nicotine and other chemicals into vapor—very small particles that users breathe in. Nicotine is found in many plants, including tobacco. E-cigarettes or similar devices also can provide THC or other substances to users. THC is the natural chemical present in marijuana(大麻) plants that gives users the mental state known as a “high”.
E-cigarettes are said to be safer than normal cigarettes because they do not create the cancer-causing byproducts of burning tobacco.Yet health officials say e-cigarette users have reported shortness of breath and other breathing problems, such as coughing and chest pain. Some have been sick to the stomach, felt very tired, suffered weight loss or developed high body temperatures. One report noted that most of the 53 illnesses reported in Illinois and Wisconsin were related to THC vaping(气化) products. But nearly 20 percent of the patients inhaled(吸入)substances like nicotine from e-cigarettes. Most of the reported cases were of young men.
The report found that, “Since no single product or substance has been associated with the illness, persons should consider not using e-cigarettes while this investigation is ongoing.” Last November, The Centers for Disease Control and Prevention, or CDC, reported that “e-cigarette use increased considerably among U.S. middle and high school students during 2017—2018.” Among high school students, it found e-cigarette use rose from 220,000 students in 2011 to 3.05 million in 2018.
On Monday, the Food and Drug Administration, or FDA gave a warning to JUUL Labs, maker of the best-selling e-cigarettes. The FDA accused the company of illegally marketing its products as being “safer than cigarettes” without the agency's approval.In a statement, the FDA's acting commissioner said that, “JUUL has ignored the law, and has made some of these statements in school to our nation's youth.” A JUUL spokesman said the company is studying the FDA's comments and “will fully cooperate”.
1.Which of the following can best describe e-cigarettes?
A.Deadly. B.Harmless.
C.Infectious. D.Effective.
2.What change will be caused when smokers inhale e-cigarettes containing THC?
A.They will be healthier.
B.They will lose weight.
C.They will feel excited.
D.They will be peaceful.
3.What information about JUUL Labs can we get from the last paragraph?
A.Students became its main marketing targets.
B.FDA didn't agree on its way of promoting its products.
C.It completely denied what it was accused of.
D.E-cigarettes were invented by it.
4.What can be the best title of the passage?
A.Say “No” to cigarettes
B.A sharp rise of e-cigarettes use among young people.
C.Safer e-cigarettes are needed for health.
D.E-cigarettes—a potential killer.
高三英语阅读理解困难题查看答案及解析
Global Health officials have been closely monitoring a new virus related to SARS that is believed ______ at least one person in Saudi Arabia.
A.to kill B.to be killing
C.to have killed D.kill
高三英语单项填空中等难度题查看答案及解析
On a recent night, while I was busy thinking about important social issues, like what to do over the week﹣end and who to do it with, I overheard my parents talking about my future. My dad was upset ﹣ not the usual stuff that he and Mom and, I guess, a lot of parents worry about like which college I' m going to, how far away it is from home. Instead, he was upset about the world his generation is turning over to mine, a world he fears has a dark and difficult future﹣﹣if it has a future at all.
"There will be a disease that kills millions, a disastrous energy crisis, a horrible worldwide depression and a nuclear explosion set off in anger."
As I lay on the living room couch, listening to their conversation, starting to worry about the future my father was describing, I found myself looking at some old family photos. There was a picture of my grandfather who was a member of the class of 1942, the war class. Next to his picture were photos of my great﹣grandparents. Seeing those pictures made me feel a lot better. I believe tomorrow will be better than today ﹣﹣that the world my generation grows into is going Lo get better, not worse. Those pictures helped me understand why.
I considered some of the awful things my grandparents and great﹣grandparents had seen in their lifetimes: two world wars, killer flu, segregation(隔离) , a nuclear bomb. But they saw other things, too, better things: the end of two world wars, passage of the civil rights laws.
I believe that my generation will see better things, too﹣﹣that we will witness the time when AIDS is cured and cancer is defeated. I will see things as incredible to me today as the internet to my father when he was 16.
1.Why was the author's dad upset on a recent night?
A. He was upset about which college for the author to go to.
B. He was upset that the college is too far from the author's home.
C. He was worried about his dark and difficult future coming soon.
D. What upset him is whether there is a future for the author's generation.
2.What was the author's first reaction to his father's worry?
A. Indifferent.
B. Optimistic.
C. Worried.
D. Sensitive.
3.What did those photos make the author understand?
A. The world was full of terrible things that could not be solved.
B. Though the world was full of terrible things, it would get better.
C. All those terrible things that worried the author actually didn't exist.
D. Those pictures showed that people never worried about their future.
4.What is the best title of the article?
A. Never worry about your future
B. Tomorrow will be better than today
C. The world will never be peaceful
D. All that exists will come to an end
高三英语阅读理解中等难度题查看答案及解析
The health official said ______ 12 suspected cases of influenza A (H1N1) were tested negative and ______, so far, this city has reported no case of the virus.
A.what; that | B.that; what | C.不填; that | D.that; 不填 |
高三英语单项填空简单题查看答案及解析
Health officials have tried to raise _______ about the H1N1 flu among all people.
A. conscience B. evidence C. evaluation D. awareness
高三英语单项填空中等难度题查看答案及解析
Health officials have tried to raise _______ about the H1N1 flu among all people.
A.conscience | B.evidence | C.evaluation | D.awareness |
高三英语单项填空中等难度题查看答案及解析