In an early stage,in Americans’eyes,Ebola was only a disease characterized by fever in Africa. then a man from west Africa died from Ebola at a hospital in Dallas,Texas.And two nurses for him became infected with the virus,which made the US government issue new guidelines(指南)to health workers.
Top American have repeatedly said that most people have little chance of being infected.Experts have that Ebola can only be spread through with an infected person’s body fluid-like blood.But it many Americans are what they have heard.
A recent survey found more than 80 percent of Americans believe that Ebola can be spread in many ,including air forced through the nose or mouth.The Harvard School of Public Health the findings.The study also showed that most adults fear there will be a(n) of Ebola in the United States soon.
survey found that more than 70 percent of Americans would support calls to travel to and from Ebola-affected parts of Africa.
Thomas Frieden heads the U.S.Centers for Disease Control and Prevention.When asked whether officials had considered a travel ban,Mr.Frieden had to say:“We won’t be able to check travelers for when they leave or when they arrive. We won’t be able , as we do ,to take a detailed history to see if they were when they arrive. When they arrive, we wouldn’t be able to impose quarantine(强加隔离)as we now can if they have contact.”
Last week , President Barack Obama urged Americans not to what he called “ panic or fear “.
This week,the administration announced that all travelers arriving in the United States from some African nations are required to pass through one of five airports.
1.A.Just B.So C.But D.even
2.A.arranging B.standing C.searching D.caring
3.A.protect B.attend C.inspect D.accompany
4.A.physicists B.doctors C.officials D.officers
5.A.stated B.suggested C.considered D.regretted
6.A.stay B.contact C.communication D.struggle
7.A.proves B.happens C.says D.appears
8.A.studying B.discussing C.questioning D.determining
9.A.ways B.areas C.organs D.bodies
10.A.released B.received C.admitted D.rejected
11.A.set B.income C.decrease D.outbreak
12.A.The other B.Another C.One D.The same
13.A.forbid B.expect C.require D.allow
14.A.foreign B.royal C.African D.federal
15.A.that B.this C.nothing D.those
16.A.change B.money C.fever D.crime
17.A.immediately B.occasionally C.presently D.regularly
18.A.examined B.searched C.explored D.exposed
19.A.distant B.high-risk C.common D.slight
20.A.look forward to B.pay attention to C.give in to D.add up to
高三英语完形填空中等难度题
In an early stage,in Americans’eyes,Ebola was only a disease characterized by fever in Africa. then a man from west Africa died from Ebola at a hospital in Dallas,Texas.And two nurses for him became infected with the virus,which made the US government issue new guidelines(指南)to health workers.
Top American have repeatedly said that most people have little chance of being infected.Experts have that Ebola can only be spread through with an infected person’s body fluid-like blood.But it many Americans are what they have heard.
A recent survey found more than 80 percent of Americans believe that Ebola can be spread in many ,including air forced through the nose or mouth.The Harvard School of Public Health the findings.The study also showed that most adults fear there will be a(n) of Ebola in the United States soon.
survey found that more than 70 percent of Americans would support calls to travel to and from Ebola-affected parts of Africa.
Thomas Frieden heads the U.S.Centers for Disease Control and Prevention.When asked whether officials had considered a travel ban,Mr.Frieden had to say:“We won’t be able to check travelers for when they leave or when they arrive. We won’t be able , as we do ,to take a detailed history to see if they were when they arrive. When they arrive, we wouldn’t be able to impose quarantine(强加隔离)as we now can if they have contact.”
Last week , President Barack Obama urged Americans not to what he called “ panic or fear “.
This week,the administration announced that all travelers arriving in the United States from some African nations are required to pass through one of five airports.
1.A.Just B.So C.But D.even
2.A.arranging B.standing C.searching D.caring
3.A.protect B.attend C.inspect D.accompany
4.A.physicists B.doctors C.officials D.officers
5.A.stated B.suggested C.considered D.regretted
6.A.stay B.contact C.communication D.struggle
7.A.proves B.happens C.says D.appears
8.A.studying B.discussing C.questioning D.determining
9.A.ways B.areas C.organs D.bodies
10.A.released B.received C.admitted D.rejected
11.A.set B.income C.decrease D.outbreak
12.A.The other B.Another C.One D.The same
13.A.forbid B.expect C.require D.allow
14.A.foreign B.royal C.African D.federal
15.A.that B.this C.nothing D.those
16.A.change B.money C.fever D.crime
17.A.immediately B.occasionally C.presently D.regularly
18.A.examined B.searched C.explored D.exposed
19.A.distant B.high-risk C.common D.slight
20.A.look forward to B.pay attention to C.give in to D.add up to
高三英语完形填空中等难度题查看答案及解析
完形填空
阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
In an early stage,in Americans’eyes,Ebola was only a disease characterized by fever in Africa. then a man from west Africa died from Ebola at a hospital in Dallas,Texas.And two nurses for him became infected with the virus,which made the US government issue new guidelines(指南)to health workers.
Top American have repeatedly said that most people have little chance of being infected.Experts have that Ebola can only be spread through with an infected person’s body fluid-like blood.But it many Americans are what they have heard.
A recent survey found more than 80 percent of Americans believe that Ebola can be spread in many ,including air forced through the nose or mouth.The Harvard School of Public Health the findings.The study also showed that most adults fear there will be a(n) of Ebola in the United States soon.
survey found that more than 70 percent of Americans would support calls to travel to and from Ebola-affected parts of Africa.
Thomas Frieden heads the U.S.Centers for Disease Control and Prevention.When asked whether officials had considered a travel ban,Mr.Frieden had to say:“We won’t be able to check travelers for when they leave or when they arrive. We won’t be able , as we do ,to take a detailed history to see if they were when they arrive. When they arrive, we wouldn’t be able to impose quarantine(强加隔离)as we now can if they have contact.”
Last week , President Barack Obama urged Americans not to what he called “ panic or fear “.
This week,the administration announced that all travelers arriving in the United States from some African nations are required to pass through one of five airports.
1.A.Just B.So C.But D.even
2.A.arranging B.standing C.searching D.caring
3.A.protect B.attend C.inspect D.accompany
4.A.physicists B.doctors C.officials D.officers
5.A.stated B.suggested C.considered D.regretted
6.A.stay B.contact C.communication D.struggle
7.A.proves B.happens C.says D.appears
8.A.studying B.discussing C.questioning D.determining
9.A.ways B.areas C.organs D.bodies
10.A.released B.received C.admitted D.rejected
11.A.set B.income C.decrease D.outbreak
12.A.The other B.Another C.One D.The same
13.A.forbid B.expect C.require D.allow
14.A.foreign B.royal C.African D.federal
15.A.that B.this C.nothing D.those
16.A.change B.money C.fever D.crime
17.A.immediately B.occasionally C.presently D.regularly
18.A.examined B.searched C.explored D.exposed
19.A.distant B.high-risk C.common D.slight
20.A.look forward to B.pay attention to C.give in to D.add up to
高三英语完形填空中等难度题查看答案及解析
People in the US thought Ebola was only a disease, accompanied with fever and found in Africa at the beginning. then a man from west Africa died from Ebola at a hospital in Dallas, Texas. And two nurses for him became infected(感染) with the virus, which made the US government publish new guidelines to health workers.
Top American have repeatedly said that most people have little chance of being infected.Experts have that Ebola can only be spread through infected person’s body fluids — like blood.But it many Americans are what they have heard.
A recent survey found more than 80 percent of Americans believe that Ebola can be spread in many , including air forced through the nose or mouth. The Harvard School of Public Health the findings. The study also showed that most adults fear there will be a(n) of Ebola in the United States soon.
survey found that more than 70 percent of Americans would support calls to travel to and from Ebola-affected parts of Africa.
Thomas Frieden heads the U.S.Centers for Disease Control and Prevention.When asked whether officials had considered a travel ban, Mr.Frieden had to say:“We won’t be able to check travelers for when they leave or when they arrive. We won’t be able, as we do , to take a detailed history to see if they were when they arrive. When they , we wouldn’t be able to impose quarantine(强加隔离)as we now can if they have high-risk touch.”
Last week, President Barack Obama urged Americans not to what he called “ panic or fear ”.
This week,the administration announced that all travelers reaching the United States from some African nations are to pass through one of five airports.
1.A. Just B. Yet C. So D. Even
2.A. arranging B. caring C. searching D. standing
3.A. treat B. attend C. inspect D. protect
4.A. officials B. officers C. physicists D. doctors
5.A. stated B. suggested C. considered D. regretted
6.A. proves B. happens C. says D. appears
7.A. studying B. discussing C. questioning D. determining
8.A. means B. areas C. organs D. countries
9.A. announced B. received C. admitted D. rejected
10.A. increase B. income C. decrease D. outbreak
11.A. The other B. Another C. The same D. One
12.A. forbid B. expect C. require D. allow
13.A. foreign B. royal C. African D. federal
14.A. that B. this C. nothing D. those
15.A. change B. money C. fever D. crime
16.A. immediately B. previously C. presently D. regularly
17.A. examined B. searched C. explored D. exposed
18.A. leave B. arrive C. live D. stay
19.A. look forward to B. pay attention to C. give in to D. add up to
20.A.persuaded B.required C. advised D. guided
高三英语完形填空中等难度题查看答案及解析
Due to the ______ of this medical technology, some diseases can be treated at an early stage.
A. approach B. appreciation
C. application D. appointment
高三英语单项填空中等难度题查看答案及解析
Due to the ______ of this medical technology, some diseases can be treated at an early stage.
A. appreciation B. application
C. appointment D. approach
高三英语单项填空中等难度题查看答案及解析
Patients in the early stages of Alzheimer’s disease often struggle to remember recently learned information, meaning they forget things like important appointments or where they left their keys. But it seems that these memories are not lost. They are still filed away in the brain somewhere; they just can’t be easily accessed.
Now, researchers at MIT have developed a means of getting back memories in mice suffering from Alzheimer’s. The method relies on a technique that uses light to control genetically modified neurons (转基因神经元). Currently it is too early to be used in human trials as it involves inserting light emitting (发光) equipment into the subjects’ brains, but the same principles still apply, the researchers said.
“The important point is that this is evidence of concept. That is, even if a memory seems to be gone, it is still there. It’s a matter of how to get it back,” said senior researcher Susumu Tonegawa.
The team took two groups of mice, one genetically engineered to develop Alzheimer’s and one healthy. They then placed them into a room and gave them a mild electric shock. All of the mice showed fear when put back in an hour later. When placed in the room a third time several days later, the Alzheimer’s mice acted normally. They had forgotten the shock.
The researchers were then able to bring back the memory of the shock by activating (激活) the cells in which the memories were stored. Even when the mice were put into an unfamiliar room, they showed fear when the cells associated with the shock were activated.
“Short-term memory seems to be normal, on the order of hours. But for long-term memory, these early-Alzheimer’s mice seem to be damaged,” said lead researcher Dheeraj Roy. “Directly activating the cells that we believe are holding the memory helps them get it back. This suggests that it is indeed an access problem to the information, not that they’re unable to learn or store this memory.”
1.What can we learn about the researchers at MIT?
A. They are the pioneers of brain research.
B. They have used the method in human trials.
C. They can cure Alzheimer’s using the new method.
D. They can get back memories in mice with Alzheimer’s.
2.Why did the Alzheimer’s mice behave normally a third time?
A. They failed to remember the electric shock.
B. They were accustomed to the situation.
C. They managed to overcome the fear.
D. They activated the association.
3.For long-term memory, the early Alzheimer’s mice _______.
A. can activate their blood cells
B. can’t learn new tricks well
C. can easily get back their memory
D. can’t access the information stored
4.The main purpose of the text is to _______.
A. introduce a method of a research
B. report the latest discovery about a disease
C. give advice on how to improve memory
D. explain how our brain stores information
高三英语阅读理解困难题查看答案及解析
The largest outbreak of the deadly disease Ebola(埃博拉) was caused by an infected bat biting a toddler, say a group of international researchers.
The 17-strong team of European and African tropical disease researchers, ecologists and anthropologists have spent three weeks investigating the outbreak of the disease in Guinea, Liberia, Ivory Coast and Nigeria. The researchers captured the bats and other creatures near the village of Meliandoua in remote eastern Guinea, where the disease began in December 2013. The boy was bitten and passed the infection on to his mother and both died within a week. The disease was then spread far and wide by the people who came to the funeral.
Most of the previous outbreaks have been caused by meat from dead infected animals collected by hunters who then sell it on. Fruit bats, however, are widely eaten in rural West Africa.
The team, led by epidemiologist(流行病学家) Herr Leendertz, a disease ecologist at the Robert Koch Institute in Berlin, are expected to publish their results in a major journal soon.
Herr Leendertz’s team believe that an infected straw-colored fruit bat brought the disease to Guinea. The mammals are known to travel long distances and usually settle in forests near cities. Herr Leendertz said, “ The evidence is not 100 percent and we can only say that it is possible. They can travel far in one night. I don't think an individual bat or colony(群体) migrated all the way from Congo or Gabon to West Africa. These big colonies are connected. There is a possibility for the virus to mix between colonies. The bats share the same fruit. It is likely not to have even been one species of bat. The virus may jump from one species to another."
If the bat theory is confirmed, the locals would try to destroy the colonies, which, Herr Leendertz says, would be an ecological disaster, because bats pollinate(传授花粉) plants and kill insects. And bat hunts would also only increase human contact with potentially infected animals.
1.What’s the purpose of the 17-strong team?
A. To look into the outbreak of Ebola.
B. To help the people who suffer from Ebola.
C. To help cure the infected boy of Ebola.
D. To make a study of the bats including fruit bats.
2.In Herr Leendertz’s opinion, ______.
A. people can do nothing to prevent the disease
B. the disease Ebola may jump from one species to another
C. the result of the research should be published immediately
D. the straw-colored fruit bats usually settle in forests in the rural areas
3.If the bat theory is confirmed, ______.
A. the disease Ebola will be controlled
B. all the fruit bats in Africa would be killed
C. plants would not be pollinated in the future
D. the ecosystem in Africa might lose its balance
4.What’s the main idea of this passage?
A. A toddler was bitten by a bat and died.
B. The disease Ebola is incurable at present.
C. An infected bat caused the outbreak of Ebola.
D. The deadly disease Ebola broke out in Guinea.
5.This passage can probably be classified as ______.
A. a science fiction B. a news report
C. a lecture essay D. an auto-biography
高三英语阅读理解中等难度题查看答案及解析
It was an early morning in summer. In the streets, sleepy-eyed people were moving quickly, heading towards their . This was the beginning of another ________day in New York City. ________this day was to be different.
Waiting ________ the crowded streets, on top of a ________110 stories high, was Philippe Petit. This daring Frenchman was about to a tightrope (绷索) between the two towers of the World Trade Center.
Philippe took his first ________with great care. The wire held. Now he was he could do it. only a balancing pole, Philippe walked his way across, a ________of 131 feet.
Soon the rush-hour began to notice. What a ________! There, 131 feet above the street, a ________figure was walking on air.
Philippe made seven ________, back and forth (来回). He wasn't satisfied with just ________. At times, he would turn, sit down, and go on his knees. Once, he had the astonishing to lie down on the thin thread. And thousands of ________watchers stared with their hearts beating fast.
After the forty-five-minute , Philippe was taken to the police station. He was asked he did it. Philippe shrugged (耸肩) and said, "When I see two tall buildings, I walk."
1.A. jobs B. homes C. buses D. offices
2.A. working B. hot C. same D. ordinary
3.A.And B.So C. But D. Thus
4.A. for B. in C. by D. above
5.A. roof B. position C. wall D. building
6.A. throw B. walk C. climb D. fix
7.A.act B.landing C.step D.trip
8.A. sure B. uncertain C. glad D. nervous
9.A. Through B. Against C. With D. On
10.A. distance B. height C. space D. rope
11.A. streets B. crowds C. passengers D. city
12.A. height B. pleasure C. wonder D. danger
13.A. great B. strange C. public D. tiny
14.A. experiments B. circles C. trips D. movements
15.A. walking B. staying C. acting D .showing
16.A. almost B. even C. often D. rather
17.A. spirit B. result C. strength D. courage
18.A. patient B. terrified C. pleased D. enjoyable
19.A. show B. trick C. try D. program
20.A. how B. why C. whether D. when
高三英语完型填空中等难度题查看答案及解析
In the early days, Beijing Opera ______ on open-air stages or in teahouses.
A. performed B. was performed
C. performs D. is performed
高三英语单项填空中等难度题查看答案及解析
When I was pushed onto the stage, I felt all the eyes in the hall _________ me.
A. through B. across C. into D. on
高三英语单项填空中等难度题查看答案及解析