Anyone, once ____ positive for Ebola, the deadly disease, will receive free medical treatment from the government.
A.testing B.being tested
C.tested D.to test
高三英语单项填空中等难度题
Anyone, once ____ positive for Ebola, the deadly disease, will receive free medical treatment from the government.
A.testing B.being tested
C.tested D.to test
高三英语单项填空中等难度题查看答案及解析
Anyone, once____ positive for Ebola, the deadly disease, will receive free medical treatment from the government.
A. testing B. being tested
C. tested D. to test
高三英语单项填空中等难度题查看答案及解析
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
Anyone, once ____ positive for H7N9 flu virus, will receive free medical treatment from our government.
A．to be tested B．being tested C．tested D．to test
高三英语单项填空中等难度题查看答案及解析
Anyone, once ____ positive for H7N9 flu virus, will receive free medical treatment from our government.
A. to be tested B. being tested C. tested D. to test
高三英语单项填空中等难度题查看答案及解析
Anyone , once _______ positive for H7N9 flu virus , will receive medical treatment from our government.
A. to be tested B. being tested C .tested D. to test
高三英语单项填空中等难度题查看答案及解析
Anyone, once _______ positive for H7N9 flu virus, will receive free medical treatment from our government.
A. to be tested B. being tested C. tested D. to test
高三英语单项填空中等难度题查看答案及解析
Anyone, once _______ positive for H7N9 flu virus, will receive free medical treatment from our government.
A. to be tested B. being tested C. tested D. to test
高三英语单项填空中等难度题查看答案及解析
Recently,an American doctor in Liberia has been tested positive for the Ebola virus.Dr.Rick Sacra,a Christian missionary(传教士)wasn’t treating people with Ebola,but he’s in the country that’s been hardest hit by the latest Ebola outbreak.And that’s one of five things to know about this virus.It’s killed thousands in West Africa.Second point,it`s a fever.Other symptoms are muscle pain,vomiting and bleeding.It`s spread through direct contact with blood and body fluids.
There’s no cure for this disease.About half of those who’ve gotten it have died.Quick treatment with fluids,vitamins and medicines seems to help in some cases.Now,there’s an experimental drug being used on some victims.Quantities are extremely limited,and its effectiveness isn’t proven.Some who’ve gotten it have survived,while some have died.
This outbreak,the worst so far has been largely limited to West Africa.You`re about to see how Ebola has turned parts of Liberia in the ghost towns.Half the population here have either died or fled.Many didn’t even stop to carry their belongings.A lot of houses were abandoned.Gazali Johnson told us he lost his eight months pregnant sister,his brother,niece and many others.Too many to name.
From Zango we go further into the jungle.Through a quarantine(隔离)gate into nearby Bakuda.Some 8,000 people live here,but no one has been allowed to leave.This community has been completely isolated.Of the over 1,000 death from Ebola in Liberia,20 percent have died right here,in this town.The town chief tells us that they worried if the virus doesn’t kill them,hunger and disease
will.This is what it`s like across Lofa,locked in,afraid and alone.
1.What symptom will a person with Ebola have?
A. Headache. B. Bone pain. C. Bleeding. D. Heart attack.
2.What can we infer from Paragraph 2?
A. The new drug has no effect on this disease.
B. Once people get Ebola,they will finally die.
C. A new drug has been widely used in hospitals.
D. Some quick treatment may save people’s lives.
3.What is mainly talked about in Paragraph 3?
A. The damage caused by Ebola.
B. The town abandoned by people.
C. The reason for people’s leaving.
D. The story told by Gazali Johnson.
4.According to Paragraph 4,what can we know about the community?
A. It is the largest community in Liberia.
B. It is greatly hit by the outbreak of Ebola.
C. The town chief is confident about their future.
D. People in the community can help each other.
高三英语阅读理解中等难度题查看答案及解析
For almost 500 years, people have wondered what deadly disease wiped out most of the Aztecs (阿芝特克人）. The locals called it cocolizthi, and now a team of scientists think they know exactly what that was. The outbreak is considered to be one of the deadliest epidemics (传染病）in human history. For centuries, its cause has been debated by historians. New evidence suggests that the Aztecs died from a type of bacteria called salmonella enterica.
An international team of scientists came to this conclusion after analysing the skeletons (骨骼) of 29 Aztecs buried in a cocoliztli cemetery in the Oaxaca region of Mexico. The scientists obtained samples from the teeth of ten of the skeletons. They compared these with their database of bacteria and found traces of salmonella enterica.
Salmonella enterica can cause enteric fever, of which typhoid (伤寒）is a type. Today, there are around 21 million cases of typhoid worldwide and it is considered a global threat.
The Aztecs were fierce hunter-gatherers who settled in what is now Mexico at the beginning of the 13th century. From their incredible capital city Tenochtitlan(now Mexico City),the Aztecs fought wars with other tribes until they ruled much of the region.
The Aztecs ended up controlling large parts of Mesoamerica--now much of Mexico and Central America--until Spanish explorers arrived in 1519 and brought with them advanced weapons and deadly diseases. The team believe that the domesticated animals, such as goats and horses, which the explorers brought with them carried the deadly bacteria.
By 1545,not even 30 years after the Spanish had arrived, Mexico's Aztec nation started coming down with a terrible illness. Symptoms included high fever, headaches and bleeding from the eyes, nose and mouth. Within five years, up to 15 million people---more than 80%of the population at the time--had died from the mystery illness they called cocoliztli. The Aztec people had no immunity (免疫) to fight the disease.
“We cannot say with certainty that salmonella enterica was the cause of the cocolizti epidemic,” said Kirsten Bos from the Max Planck Institute for the Science of Human History in Germany.” We do believe that it should be considered a strong candidate."
1.Which helped the scientists come to the conclusion.
A.Certain traces of deadly diseases carried by goats and horses
B.Extensive comparison of Aztecs buried in a cocoliztli cemetery
C.Definite discoveries of infected tooth samples from the database
D.Small amounts of certain bacteria in the teeth of the skeletons
2.Which of the following is TRUE about the Aztecs?
A.They had a population of about 15 million around 1545.
B.Their livelihood depended on raising domesticated animals.
C.Their population dropped sharply in the middle 16th century.
D.They won the wars with the Spanish despite being poorly equipped.
3.The underlined word “it” in the last paragraph refers to_
A.cocolizti epidemic B.salmonella enterica C.the typhoid D.the Max Planck Institute
4.The passage is mainly about
A.how the Aztecs got infected with salmonella enterica
B.why the Aztecs had no immunity to fight typhoid
C.which reason caused the Aztecs to abandon their native land
D.what led to the military and economic decline of the Aztecs
高三英语阅读理解中等难度题查看答案及解析