The virus “Ebola” is named after the Ebola River in what is now the Democratic Republic of the Congo. That’s where the virus was discovered in 1976. A person can only get Ebola through direct contact with an infected person’s bodily fluids, for example, sweat or spit. Additionally, the virus can get into your body through your eyes and mouth if those areas come into contact with something that contains the bodily fluids of an infected person. That’s why health care workers are supposed to keep themselves completely covered while treating patients.
The deadliest Ebola outbreak is spreading fast in Western Africa, taking over 900 lives so far. The health systems in Guinea, Sierra Leone and Liberia are severely lacking in resources, and health care workers may not have access to adequate protective clothing when working in rural clinics, where the proper protections are lacking. Since Guinea, Sierra Leone and Liberia share a border; it’s easier for people to move from one country to another, increasing the risk for disease spread.
For now, all doctors can do is treat the symptoms and provide supportive care like monitoring heart rate, blood pressure, and breathing while making sure the patients’ fluids are supplied. Sometimes patients are given antibiotics(抗生素) to treat other possible infections. The hope is to make the patient pull through the infection so their immune system can eventually clear the virus. The people who survive Ebola have created enough antibodies to kill it.
There are several promising drugs and vaccines in development, but since Ebola is less common—and research about it is not well funded — there is no drug or vaccine that has been approved for use in humans. Many of the other drugs and vaccines have not yet been tested in humans. The WHO (World Health Organization) is meeting next week to discuss whether experimental treatments should be used during this outbreak.
1.According to the passage, Ebola only spreads through _________.
A. patients’ sweat B. bodily fluids
C. people’s spit D. your body
2.Which is the possible reason why Ebola spreads in West Africa quickly?
A. The Ebola river is polluted by the virus.
B. There aren’t any protections.
C. The protective clothing is adequate.
D. Three western countries share a border.
3.Why have there been no cures used for Ebola in humans so far?
A. There are not enough drugs for the infected people.
B. Ebola is rare and its research money is lacking.
C. The people have enough antibodies to kill Ebola.
D. The WHO has decided not to use them.
4.Which of the following can be the best title?
A. The Prevention from Ebola.
B. No Cure for the Virus “Ebola”.
C. The Deadliest Ebola in Africa.
D. Introduction to the Virus “Ebola”.
高三英语阅读理解中等难度题
The virus “Ebola” is named after the Ebola River in what is now the Democratic Republic of the Congo. That’s where the virus was discovered in 1976. A person can only get Ebola through direct contact with an infected person’s bodily fluids, for example, sweat or spit. Additionally, the virus can get into your body through your eyes and mouth if those areas come into contact with something that contains the bodily fluids of an infected person. That’s why health care workers are supposed to keep themselves completely covered while treating patients.
The deadliest Ebola outbreak is spreading fast in Western Africa, taking over 900 lives so far. The health systems in Guinea, Sierra Leone and Liberia are severely lacking in resources, and health care workers may not have access to adequate protective clothing when working in rural clinics, where the proper protections are lacking. Since Guinea, Sierra Leone and Liberia share a border; it’s easier for people to move from one country to another, increasing the risk for disease spread.
For now, all doctors can do is treat the symptoms and provide supportive care like monitoring heart rate, blood pressure, and breathing while making sure the patients’ fluids are supplied. Sometimes patients are given antibiotics(抗生素) to treat other possible infections. The hope is to make the patient pull through the infection so their immune system can eventually clear the virus. The people who survive Ebola have created enough antibodies to kill it.
There are several promising drugs and vaccines in development, but since Ebola is less common—and research about it is not well funded — there is no drug or vaccine that has been approved for use in humans. Many of the other drugs and vaccines have not yet been tested in humans. The WHO (World Health Organization) is meeting next week to discuss whether experimental treatments should be used during this outbreak.
1.According to the passage, Ebola only spreads through _________.
A. patients’ sweat B. bodily fluids
C. people’s spit D. your body
2.Which is the possible reason why Ebola spreads in West Africa quickly?
A. The Ebola river is polluted by the virus.
B. There aren’t any protections.
C. The protective clothing is adequate.
D. Three western countries share a border.
3.Why have there been no cures used for Ebola in humans so far?
A. There are not enough drugs for the infected people.
B. Ebola is rare and its research money is lacking.
C. The people have enough antibodies to kill Ebola.
D. The WHO has decided not to use them.
4.Which of the following can be the best title?
A. The Prevention from Ebola.
B. No Cure for the Virus “Ebola”.
C. The Deadliest Ebola in Africa.
D. Introduction to the Virus “Ebola”.
高三英语阅读理解中等难度题查看答案及解析
Controlling the Ebola virus outbreak at the source in West Africa is the most effective way to decrease international risk of transmission, according to a research paper.
If the epidemic(时疫) persists and grows, it's likely there will be more cases(病例) of the deadly virus exported to other countries, including Canada, via air travel, said Dr. Kamran Khan, a physician and researcher at St. Michael's Hospital.
Dr. Khan, who examines global airline travel patterns to predict the spread of diseases, said that every month, three Ebola-infected travellers are likely to leave West Africa, which is experiencing a widespread outbreak of the virus -- and this number would only increase as the epidemic grows.
Dr. Khan and his co-authors said it is essential that other countries, their public health agencies and hospitals should be prepared. The risk of international spread would be further _____ if this epidemic were to take hold in other countries, especially those with weak public health systems.
"The international community must be mindful and be ready to support the early detection and control of cases." Dr. Khan said.
Dr. Khan noted that of the almost 500,000 travellers who flew on commercial flights out of Guinea, Liberia or Sierra Leone in 2013, more than half were headed to destinations in five countries: Ghana (17.5 per cent, Senegal (14.4 per cent), the United Kingdom (8.7 per cent, France (7.1 per cent) and Gambia (6.8 per cent). More than 60 per cent of travellers from those countries in 2014 are expected to have final destinations in low- or lower-middle income countries.
"Given that these countries have limited medical and public health resources, they may have difficulty quickly identifying and effectively responding to imported Ebola cases”, said Dr Khan.
1.How does Dr. Khan predict the spread of diseases?
A.By doing experiments
B.By examining global airline travel patterns
C. By setting up a model
D. By collecting the data of the cases
2.We can fill in the blank in Paragraph 4 with _____.
A. decreased B. increased
C. avoided D. predicted
3.In low income countries, ______.
A. it is easy to identify imported Ebola cases
B. people have rich medical resources
C. imported Ebola cases may not be effectively responded to
D. travelers are not allowed to go to some places
高三英语阅读理解中等难度题查看答案及解析
The spread of the Ebola virus in Nigeria is believed ______ by August, 2014.( )
A.to be controlled B.to have been controlled
C.to control D.to have controlled
考点:不定式
高三英语单项填空中等难度题查看答案及解析
The spread of the Ebola virus in Nigeria is believed _______ by August, 2014.
A.to be controlled
B.to have been controlled
C.to control
D.to have controlled
高三英语单项填空中等难度题查看答案及解析
The virus Ebola is reported ______ over 3,000 lives in 5 countries of West Africa by now.
A. taking B. having taken
C. to take D. to have taken
高三英语单项填空中等难度题查看答案及解析
The virus Ebola is reported ______ over 3,000 lives in 5 countries of West Africa by now.
A.taking B.having taken
C.to take D.to have taken
高三英语单项填空中等难度题查看答案及解析
What do you get when you mix six little pigs, four monkeys and the deadly Ebola virus? Bad news, according to a recent experiment by Canadian researchers.
The experiment is the first to suggest that the Ebola virus can spread through the air. The study, published in November, detailed how the virus apparently moved from pigs to monkeys without their coming into physical contact. Previously, researchers thought animals had to touch to pass along the virus, which has been blamed for the deaths of more than 1,500 people.
In the experiment, researchers infected six piglets with Ebola. The team then placed the infected piglets in a room with several monkeys. A barrier separated the monkeys from the pigs, so the two species could not touch. And yet, after about a week, two monkeys became sick, infected with the virus. A few days later, the other two monkeys also fell sick with Ebola.
The Ebola virus is named for a river in the Democratic Republic of the Congo in Africa, close to where the germ was discovered. The virus causes high fevers and deadly bleeding disorders in primates, including people and monkeys. It is often deadly. However, scientists previously believed that the virus spread only through direct contact with the blood or other body fluids of an infected person or animal. Other viruses, including the ones that cause chicken pox and the common cold, are known to spread through the air.
Though Ebola too appeared to spread through the air in the laboratory experiment, researchers haven’t documented any cases of airborne infection under normal conditions. Since the discovery of Ebola in 1976, it has infected more than 2,200 people. Of that total, only 13 people fell ill apparently without coming into direct contact with an infected animal or person. If Ebola spreads easily through the air, scientists and doctors would expect to see more such cases.
1.What does the underlined part “Bad news” in Paragraph1 refer to?
A. The animals will only spread the virus to other animals.
B. Canadian researchers have not reached a conclusion.
C. The virus will be spread among people by pigs and monkeys.
D. The pigs and monkeys will get infected with the virus.
2.What have researchers surprisingly found about the Ebola virus recently?
A. The Ebola virus can be deadly to animals in the wild.
B. The Ebola virus can spread without direct physical contact.
C. The Ebola virus can kill humans after they get infected with it.
D. Animals have to touch each other to pass along the Ebola virus.
3.What do we know about the Ebola virus?
a. It was first found in an African country.
b. It spreads totally differently from chicken pox.
c. It cannot spread through other body fluids besides blood.
d. People usually suffer from high fevers after getting infected.
e. It spread only through direct contact with the blood in the past.
A. abe B. ad C. abc D. bcde
4.It is implied about the Ebola virus in the last paragraph that ___.
A. it has killed thirteen people in total through air spreading
B. it cannot cause any human infections under normal conditions
C. spreading through the air is not an efficient route of transmission
D. more than 2,200 people have died because of the infection of the virus
高三英语阅读理解中等难度题查看答案及解析
2014 saw that the Ebola virus reappeared in Guinea and soon spread into neighbouring Liberia and Sierra Leone, killing over 7,800 people by the new year of 2015. It leads to viral hemorrhagic fever, which is characterized by high fever and internal bleeding etc.
Ebola is named after the Ebola River, where it was first discovered in 1976. There are five different types of the Ebola virus, each named after where they first happened: Sudan, Ivory Coast, Reston, Bundibugyo, and Zaire. The deadliest of the five, Zaire, was responsible for the 2012 out- break, and is believed to be attacking Guinea.
Ebola is naturally found in fruit bats, which pass on the virus to other animals by biting or sucking on their blood. Humans who are suffering from the Ebola infection might have touched the bodily fluids of the infected animals. Once infected, a human becomes a carrier of the deadly virus.
Unfortunately, there are no disease - specific treatments for Ebola. Health - care workers only supply the infected people with physiological saline(生理盐水)to keep them in good condition. Ebola can kill 90% of those infected, especially in underdeveloped societies like those in Africa. Since there have been many cases of nurses catching the disease from patients, they are forced to wear strict protective clothes, and in some cases, not even allowed to get close to the infected. The fact that there is no cure for the Ebola virus is what makes the outbreak a challenging one to control.
What’s worse, since we live in an interconnected world, where the situation in one country can affect us all, the influences of Ebola are huge: damaging trade relations, affecting foreign visitors, and weakening entire countries. It is feared that the disease may spread throughout west African countries. For every country, a strong health system can decrease the risk of health attack and lessen the impact of Ebola.
1.What is the function of the first paragraph in the whole passage?
A. To arouse the reader’s concern.
B. To summarize the whole passage.
C. To give a detailed description of Ebola.
D. To introduce the theme of the whole passage.
2.What can we infer about the Ebola virus?
A. It has caused a panic in many countries.
B. It is the most dangerous virus in the world.
C. A strong health system is important to fight against Ebola.
D. Anyone who was infected Ebola will die.
3.Paragraph 3 mainly tells us _________.
A. What the Ebola virus is
B. How the Ebola virus spreads
C. How the Ebola virus is treated
D. How the Ebola virus affects the life
4.Which of the following is true?
A. There are no effective drugs to treat Ebola by far.
B. Ebola is now very common in Guinea.
C. Those with a fever must be infected by Ebola.
D. Females are easier to be infected by Ebola.
高三英语阅读理解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
Have you ever noticed the colour of the water in a river or stream after a heavy rainfall? What do you think caused this change in colour? It is soil that has been washed into the river from the riverbank or from t}le nearby fields.
Components of Soft
Soil is made up of a number of layers(层),each having its own distinctive colour and texture.The upper layer is known as the litter.It acts like a blanket.limiting temperature changes and reducing water loss.The topsoil layer is made up of small particles of rock mixed with rotten plant and animal matter called humus(腐殖质),which is black and gives the topsoil its dark colour.This layer is usually rich in nutrients,oxygen,and water.Below the topsoil is the subsoil,a layer that contains more stones mixed with only small amounts of organic matter.This layer is lighter in colour because of the lack of humus.Beneath the soil lies a layer of bedrock.
Soil forms from the bottom up.Over time bedrock is attacked by rain, wind,frost, and snow.It is gradually broken down into smaller particles in a process called weathering.Plants begin to grow,and rotten materials enrich the topsoil.Most of the soil in Eastern Canada.for example.Was formed from weathered rock that was exposed when the ice disappeared l2.000 years ag0.
Water Beneath the Soil
Surface water collects and flows above the ground in lakes.ponds.and rivers.Once in the soil or rock,it is called groundwater.Gravity pulls groundwater through the soil in a process called percolation(渗透).Eventually the water reaches a layer called the water table.Under this is bedrock through which water cannot percolate.
As water percolates downward,it dissolves organic matter and minerals from the soil and carries them to deeper layers.This causes a serious problem because plants require these nutrients for growth.
Soil pH
Soil can be acidic.neutral.or basic.The pH of the soil is determined by the nature of the rock
from which it was formed.and by the nature of t}le plants that grow and rot in it.
The acidity of rain and snow can lower the pH of the groundwater that enters the soil.By burning fossil fuels such as coal,oil and gasoline,humans have been contributing to higher levels of acidity in many soils.When fossil fuels are burned.gases are released into the air and then fall back to earth as acid rain.Acid soil increases出e problem of carrying nutrients to lower soil levels.As nutrients are removed,soil is less fertile.Plants grow more slowly in acidic soil,and also become easily attacked by diseases.
1.The layer of soil that provides necessary nutrients for plant growth is called.
A.1itter B.topsoil C.humus D.subsoil
2.According to the text.which of the following is NOT true?
A.Soil forms from weathered rock on the earth surface.
B.The deeper layer of soil is darker in colour than t}le surface soil.
C.Air pollution is partially responsible for acid soil.
D.Groundwater tends to carry away nutrients for plant growth.
3.We can infer from the passage that the water table lies________.
A.between the topsoil layer and the subsoil layer
B.in the subsoil layer above bedrock
C.between the subsoil layer and bedrock
D.in the bedrock layer beneath the subsoil
4.The underlined word “dissolve” is used to express the idea that organic matter and minerals from soil are ________.
A.rushed away into the river
B.cleaned and purified by water
C.destroyed and carried away by water
D.mixed with water and become part of it
高三英语阅读理解困难题查看答案及解析