Researchers have been determined to ______ how bird flu spreads from human to human worldwide.
A. turn out B. figure out
C. pick out D. check out
高二英语单项填空中等难度题
Researchers have been determined to ______ how bird flu spreads from human to human worldwide.
A. turn out B. figure out
C. pick out D. check out
高二英语单项填空中等难度题查看答案及解析
So far, several cases of a disease, ________ as bird flu, are reported to have been found in the country.
| A．knowing | B．to be known | C．having known | D．known |
高二英语单项填空简单题查看答案及解析
Two more cases of H7N9 bird flu virus have been detected in Zhejiang province, including a man who died last week, authorities said on Wednesday.
The Chinese Center for Disease Control and Prevention confirmed that a 38-year-old patient surnamed Hong from Hangzhou, the provincial capital, who died in hospital on March 27, had the virus.
Hong was infected on March 7 while working in neighboring Jiangsu province. He returned home on March 18, according to the Zhejiang health department.
The other patient, surnamed Yang, is a 67-year-old man. He developed a cough and fever on March 25 and was admitted to hospital on Tuesday.
None of the people who came into close contact with the patients have developed symptoms of the flu, the health department said.
On Sunday, two men in Shanghai died from H7N9. A woman in Anhui province and four men in Jiangsu province remain in criticalcondition, which makes a large number of people scared to death.
All patients had fevers and coughs in the early stages before developing pneumonia(肺炎) and breathing difficulties, China's health authorities said.
Experts say genetic analysis shows that the H7N9 virus can be treated with Tamiflu, an antiviral drug that may slow the spread of influenza（流感，家畜流行性感冒） in the body.
Wang Xianjun, head of the Shandong provincial center of disease control, said H7N9 is sensitive to neuraminidase-inhibiting medicine such as Tamiflu, Qilu Evening News reported on Wednesday.
There are no effective vaccines(疫苗) for H7N9 as yet, Wang said, but using Tamiflu may be effective in the early stages.
1.According to this passage, the most cases of H7N9 bird flu virus have been detected in ______.
A．Zhejiang province B．Anhui province
C．Shanghai D．Jiangsu province
2.From the whole passage we can learn that_______.
A．two men in Shanghai and a woman in Zhejiang province died from H7N9.
B．the H7N9 virus can be cured with an antiviral drug called Tamiflu.
C．all the patients infected with H7N9 had fevers and coughs in the early stages.
D．only one patient has died from H7N9 in Anhui.
3.The underlined word in the sentence “…four men in Jiangsu province remain in critical condition” may be close to ______ in meaning.
A．very serious and dangerous B．extremely important
C．quite healthy D．not serious or dangerous
4.The passage is mainly about _____.
A．the medicine for H7N9
B．the spread of H7N9 and an antiviral drug
C．the number of patients who died from H7N9
D．people who came into close contact with the patients of H7N9
高二英语阅读理解中等难度题查看答案及解析
Every ________ had been made in order to save the boy with the H5N1 bird flu, but all in vain. He died at last.
A.effect B. affect C. infect D. effort
高二英语单项填空简单题查看答案及解析
Researchers have been looking forward to using tiny flying robots to settle important tasks. The various machines could be used to help astronauts on space missions, and even to help bees with plant pollination(授粉). However, fitting the heavy electric equipment that is used to power and control the wings into the tiny robot has been challenging. Now thanks to RoboBee X-Wing—the world’s lightest aerial vehicle that can fly not tied to a power source.
Made by Harvard researchers, the insect-inspired robot weighs only 259 milligrams, has four wings whose distance is 3.5 centimeters, and stands 6.5 centimeters high. Its four small wings, which can flap up(拍动) to 170 times a second, are controlled by actuators(驱动器). They become small when the electricity passes through them. Six small solar cells, fitted above the wings to prevent them from disturbing the flight, provide the power.
RoboBee X-Wing is powered by six solar cells. To test its flying abilities, the team, led by doctor Noah Jafferis and PhD student Elizabeth Helbling, exposed the RoboBee X-Wing’s solar cells to LED lighting. To their delight, the tiny robot’s wings began to flap, and it rose, keeping a flight for about half a second. Though the robot lost its flight ability as soon as the power source was turned off, its short flight was cheered for its huge effect on the future of tiny flying robots.
However, though the current RoboBee X-Wing is a step in the right direction, it is not quite ready for main time. The researchers also hope to experiment with other power sources, such as batteries, sun light or radio frequency signals, and to add more advanced “brains” and sensor systems to navigate and complete tasks independently.
1.What can we know about small flying robots according to the first paragraph?
A.They are made to do ordinary tasks by scientists.
B.They can be used only for very dangerous task.
C.They can be powered directly by the energy of the sun.
D.It’s not easy to fit the heavy electric equipment into them.
2.Why is RoboBee X-Wing considered having a big effect on the future of tiny flying robots?
A.Because it is ready for the instant use.
B.Because it can take off and fly out of control.
C.Because it can fly not tied to a power source.
D.Because it can settle important tasks.
3.Which of the following is TRUE about RoboBee X-Wing?
A.It can’t be used in crowded places.
B.It can be used for giving directions.
C.It can use radio signals to power itself.
D.It still can’t be used widely at present.
4.In which section of a newspaper may this text appear?
A.Entertainment. B.Science.
C.Education. D.Health.
高二英语阅读理解中等难度题查看答案及解析
HANGZHOU, April 4 (Xinhua) —Another H7N9 bird flu case has been confirmed in east China's Zhejiang Province, the provincial health department said Thursday, bringing the country's total number of cases to 10.
The patient is a 64-year-old man from Huzhou City. He became ill on March 29 and was admitted to a hospital in Huzhou on March 31.
On Thursday, medical experts confirmed that he was infected with the H7N9 bird flu strain after the provincial center for disease control and prevention said late Wednesday that he tested positive for the virus.
An investigation has found that all 55 people who had close contact with the man have not showed any abnormal clinical symptoms, the department said.
So far, China has confirmed 10 H7N9 cases — four in Jiangsu Province, two in Shanghai Municipality, one in Anhui Province and three in Zhejiang. The two patients in Shanghai and one in Zhejiang have died.
Health authorities and hospitals in many Chinese provinces have been on high alert for H7N9 cases.
In Nanchang, capital of Jiangxi Province, which neighbors Zhejiang, five hospitals have been selected and ordered to be ready to treat H7N9 patients, though no cases have been reported there.
China's health authorities have promised transparency(透明) and cooperation to the World Health Organization (WHO) in regards to human infections of the new strain of bird flu.
On Wednesday afternoon, the National Health and Family Planning Commission distributed prevention and control plans and technique directives（指示）to health institutions nationwide. "So far, the sources of infection have not been clear, but based on past experiences and recent epidemiological (病理学的) studies, the sources could be poultry or the secretion and excrement from poultry," according to the plan.
The Chinese Center for Disease Control and Prevention said Wednesday that no human-to-human transmission of H7N9 has been discovered and no epidemiological connection between these cases has been found.
1. What’s the main idea of the passage?
A. China is on high alert for H7N9 cases.
B. The 10th H7N9 infection case has been confirmed in China.
C. China has promised transparency and cooperation to the WHO.
D. China distributed prevention and control plans.
2. Which of the following statements is true according to the passage?
A. Four H7N9 cases have been confirmed in Zhejiang including the old man.
B. People who had close contact with the man are infected with bird flu too.
C. So far three people have died of H7N9 bird flu.
D. China kept back the truth of human infections from the WHO.
3. In which province have no H7N9 bird flu cases been reported so far?
A. Jiangxi. B. Anhui.
C. Zhejiang. D. Jiangsu.
4. We can learn from the passage that ______.
A. H7N9 bird flu can spread from human to human.
B. Poultry are the sources of H7N9 bird flu.
C. All the cases confirmed are not connected.
D. Experts don’t definitely know the sources of H7N9 bird flu.
高二英语阅读理解中等难度题查看答案及解析
It’s impossible to determine how many people would have lost their lives without the contribution of African-American inventor Dr Charles Drew.
Charles Drew was born on June 3, 1904, in Washington, DC. His early interest was in education, but he was also an outstanding athlete. While in college, he was awarded as the man who contributed the most to sports during his four years in school. Drew’s sister Elsie suffered from tuberculosis(肺结核) and died in 1920. Her death influenced his decision to study medicine.
After becoming a doctor and working as a college instructor, Drew went to Columbia University, where he earned his Doctor of Medical Science degree. During this time he became involved in research on blood and blood transfusions.
At Columbia, he wrote a paper on “banked blood”, in which he described a technique he developed for the long-term preservation of blood plasma. Before his discovery, blood could not be stored for more than two days because of the rapid breakdown of red blood cells. Drew had discovered that by separating the plasma from the whole blood and then refrigerating them separately, they could be combined a week later for a blood transfusion. Drew became the first African American to receive a PhD in medical science.
After World War II broke out, Drew was called upon to put his techniques into practice. He was named a project director for the American Red Cross but soon quit his post after the government issued an order that blood taken from white donors should be separated from that of black donors.
On April 1, 1950, after he attended the annual free clinic at the John A. Andrew Memorial Hospital, he and other three physicians decided to drive back home. As he was tired from spending the night before in the operating room, he lost control of his car. Drew was badly injured and was taken to Alamance General Hospital in Burlington, North Carolina. He was pronounced dead half an hour after he first received medical attention. Drew's funeral was held on April 5, 1950, at the Nineteenth Street Baptist Church in Washington, DC.
But contrary to popular thought, he was not refused a blood transfusion by an all-white hospital. He indeed received a transfusion but was beyond the help of the doctors attending to him. As Dr. John Ford, one of the doctors who survived the accident, later explained, “We all received the very best of care. The fact that he was a Black did not in any way limit the care that was given to him.” Over the years, Drew has been considered one of the most honored figures in the medical field.
1.According to the passage, ________ might have contributed to the invention of blood banks.
A．the combination of blood cells
B．the rapid breakdown of red blood cells
C．the development of refrigerating technique
D．the technique of separating plasma from the whole blood
2.By saying “contrary to the popular thought” in the last paragraph, the writer _______.
A．can’t understand the doctors’ decision
B．indicates his concern about the popular thought
C．feels disappointed with the all-white hospital
D．means what the doctors did was out of expectation
3.We can learn from the passage that Dr Charles Drew is best remembered by people as _______. .
A．an outstanding athlete B．a college instructor
C．a medical researcher D．a project director
4.What conclusion can we draw from the passage?
A. Charles Drew died in a medical accident.
B. African Americans were still treated unfairly in the 1940s.
C. Charles Drew was the first African American to receive a PhD.
D. Physicians refused to give Charles Drew medical attention because he was a black.
5.In which section of a magazine can we most probably find the passage?
A．People B．Health C．Culture D．Entertainment
高二英语阅读理解中等难度题查看答案及解析
______ difficult it is, he is determined to ______ the experiment.
| A．No matter how; have a go at | B．However; have a go for |
| C．Whatever ; have a go | D．No matter what; have a go at |
高二英语单项填空简单题查看答案及解析
Have you ever wished you could fly like a bird? If so, you have to think again. I learned how to fly when I was six years old, and it was not a experience at all!
It happened on the in Belgium. I was happily building a sandcastle when a lady and began to talk with my parents. I that they wouldn’t talk long, because she had a huge horrible dog on a leash! It was its owner by her feet, trying to get her to go. It seemed that even the owner was growing with her dog’s movements, as to my , she turned to me and said, “Would you like to walk my dog?”
ME? I was sure the dog would eat me whole in one bite. I looked at my parents to see if they would rescue me, but they were paying no to me.
A second later it was firmly tied to my wrist and I had no choice but to the dog. At first, it wasn’t so . The “monster” took its time, walking here and there. Then it took off like a rocket. My arm was nearly injured as I found myself being sent into the air.
In a few seconds, everyone on the beach was at me as if I had become some kind of local attraction. I tried hard to the sand with my feet.
Then the dog . And I fell onto the sand. The creature must have been , because it was walking slowly back to my parents and its owner were. When we finally got back, I noticed the looks of on their faces. My parents said, “What took you so ? Little boys shouldn’t wander away that far!” And then I began to loudly.
Is it strange that I have grown up to be a person who likes cats more than dog?
1.A. secret B. fun C. suitable D. creative
2.A. road B. radio C. beach D. platform
3.A. came up B. gave up C. came out D. gave out
4.A. planned B. pretended C. wished D. guessed
5.A. carrying B. watching C. cheering D. bothering
6.A. impatient B. impolite C. unnatural D. unclear
7.A. horror B. delight C. honor D. regret
8.A. exactly B. fortunately C. specially D. anxiously
9.A. money B. debt C. time D. attention
10.A. beat B. borrow C. follow D. forget
11.A. boring B. bad C. exciting D. good
12.A. all of a sudden B. not any more C. in other words D. on the whole
13.A. working B. staring C. attacking D. shouting
14.A. find B. move C. reach D. collect
15.A. appeared B. screamed C. stopped D. escaped
16.A. tired B. frightened C. interested D. shocked
17.A. when B. what C. how D. where
18.A. pride B. anger C. sadness D. hope
19.A. fast B. long C. high D. hard
20.A. rest B. play C. walk D. cry
高二英语完形填空中等难度题查看答案及解析
Researchers are placing robotic dogs (机器狗) in the homes of lonely old people to determine whether they can improve the quality of life for humans. Alan Beck, an expert in human-animal relationship, and Nancy Edwards, a professor of nursing, are leading the animal-assisted study concerning the influence of robotic dogs on old people’s depression, physical activity, and life satisfaction. “No one will argue that an older person is better off being more active, challenged, or stimulated (刺激),” Edwards points out. “The problem is how we promote (使……成为现实) that, especially for those without friends or help. A robotic dog could be a solution.”
In the study, the robot, called AIBO, is placed for six weeks in the houses of some old people who live alone. Before placing AIBO in the home, researchers will collect baseline data for six weeks. These old people will keep a diary to note their feelings and activity before and after AIBO. Then, the researchers will review the data to determine if it has inspired any changes in the life of its owner.
“I talk to him all the time, and he responds to my voice,” says a seventy-year-old lady. “When I’m watching TV, he’ll stay in my arms until he wants down. He has a mind of his own.”
The AIBOs respond to certain orders. The researchers say they have some advantages over live dogs, especially for old people. Often the elderly are disabled and cannot care for an animal by walking it or playing with it. A robotic dog removes exercise and feeding concerns.
“At the beginning, it was believed that no one would relate to the robotic dog, because it was metal and not furry, ” Beck says. “But it’s amazing how quickly we have given up that belief.”
“Hopefully, down the road, these robotic pets could become a more-valuable health helper. They will record their masters’ blood pressure, oxygen levels, or heart rhythms. AIBOs may even one day have games that can help stimulate older people’s minds. ”
1.The purpose of Beck and Edwards’ study is to __________.
A. understand human-animal relationship
B. make lonely old people’s life better
C. find the causes of old people’s loneliness
D. promote the animal-assisted research
2.In the research, the old people are asked to ____________.
A. note the activities of AIBOs
B. keep AIBOs at home for 12 weeks
C. record their feelings and activity.
D. analyze the collected information
3.What is the advantage of AIBO over live dogs?
A. It is easier to keep at home.
B. It can help the disabled people.
C. It responds to all the human orders.
D. It can watch TV with its owner.
4.The author seems to suggest that the future robotic dogs may _____________.
A. cure certain diseases
B. keep old people active
C. change people’s beliefs
D. look more like real dogs
高二英语阅读理解中等难度题查看答案及解析