The terrible disease, ______ already kills ab...

The terrible disease, ______ already kills about one million people each year, has grown resistant ______ standard medicine..

高二英语单项填空简单题查看答案及解析

Malaria, the world's most widespread parasitic（寄生虫引起的） disease, kills as many as three million people every year—almost all of whom are under five, very poor, and African．In most years, more than five hundred million cases of illness result from the disease, although exact numbers are difficult to assess because many people don't （or can't） seek care．It is not unusual for a family earning less than two hundred dollars a year to spend a quarter of its income on malaria treatment, and what they often get no longer works．In countries like Tanzania, Mozambique, and the Gambia, no family, village, hospital, or workplace can remain unaffected for long.

Malaria starts suddenly, with violent chills, which are soon followed by an intense fever and, often, headaches．As the parasites multiply, they take over the entire body．Malaria parasites live by eating the red blood cells they infect （感染）．They can also attach themselves to blood vessels in the brain．If it doesn't kill you, malaria can happen again and again for years．The disease passed on to humans by female mosquitoes infected with one of four species of parasite．Together, the mosquito and the parasite are the most deadly couple in the history of the earth—and one of the most successful．Malaria has five thousand genes, and its ability to change rapidly to defend itself and resist new drugs has made it nearly impossible to control．Studies show that mosquitoes are passing on the virus more frequently, and there are more outbreaks in cities with large populations．Some of the disease's spread is due to global warming.

For decades, the first-choice treatment for malaria parasites in Africa has been chloroquine, a chemical which is very cheap and easy to make．Unfortunately, in most parts of the world, malaria parasites have become resistant to it．Successful alternatives that help prevent resistance are already available, but they have been in short supply and are very expensive．If these drugs should fail, nobody knows what would come next.

1.According to paragraph 1, many people don't seek care because___.

A．they are too poor

B．it is unusual to seek care

C．they can remain unaffected for long

D．there are too many people suffering from the disease

2.People suffering from malaria___.

A．have to kill female mosquitoes               B．have ability to defend parasites

C．have their red blood cells infected       D．have sudden fever, followed by chills

3.Which of the following may be the reason for the wide spread of the disease?

A．Its resistance to global warming.

B．Its ability to pass on the virus frequently.

C．Its outbreaks in cities with large populations.

D．Its ability to defend itself and resist new drugs.

4.It can be inferred from the passage that___.

A．no drugs have been found to treat the disease

B．the alternative treatment is not easily available to most people

C．malaria has developed its ability to resist parasites

D．nobody knows what will be the drug to treat the disease

5.Which of the following questions has NOT been discussed in the passage?

A．How can we know one is suffering from malaria?

B．How many people are killed by malaria each year?

C．Why are there so many people suffering from malaria?

D．What has been done to keep people unaffected for long?

高二英语阅读理解中等难度题查看答案及解析

Malaria, the world’s most widespread parasitic (寄生虫引起的)disease, kills as many as three million people every year—almost all of whom are under five, very poor, and African. In most years, more than five hundred million cases of illness result from the disease, although exact numbers are difficult to assess because many people don't (or can’t) seek care. It is not unusual for a family earning less than two hundred dollars a year to spend a quarter of its income on malaria treatment, and what they often get no longer works. In countries like Tanzania, Mozambique, and the Gambia, no family, village, hospital, or workplace can remain unaffected for long.

Malaria starts suddenly, with violent chills, which are soon followed by an intense fever and, often, headaches. As the parasites multiply, they take over the entire body. Malaria parasites live by eating the red blood cells they infect. They can also attach themselves to blood vessels in the brain. If it doesn’t kill you, malaria can happen again and again for years. The disease is passed on to humans by female mosquitoes infected with one of four species of a parasite. Together, the mosquito and the parasite are the most deadly couple in the history of the earth and one of the most successful. Malaria has five thousand genes, and its ability to change rapidly to defend itself and resist new drugs has made it nearly impossible to control. Studies show that mosquitoes are passing on the virus more frequently, and there are more outbreaks in cities with large populations. Some of the disease's spread is due to global warming.

For decades, the first-choice treatment for malaria parasites in Africa has been chloroquine, a chemical which is very cheap and easy to make. Unfortunately, in most parts of the world, malaria parasites have become resistant to it. Successful alternatives that help prevent resistance are already available, but they have been in short supply and are very expensive. If these drugs should fail, nobody knows what would come next.

1.According to paragraph 1, many people don’t seek care because ________.

A. they are too poor

B. it is unusual to seek care

C. they can remain unaffected for long

D. there are too many people suffering from the disease

2.People suffering from malaria ________.

A. have to kill female mosquitoes         B. have ability to defend parasites

C. have their red blood cells infected    D. have sudden fever, followed by chills

3.Which of the following may be the reason for the wide spread of the disease?

A. Its resistance to global warming.

B. Its ability to pass on the virus frequently.

C. Its outbreaks in cities with large populations.

D. Its ability to defend itself and resist new drugs.

4. It can be inferred from the passage that ________.

A. no drugs have been found to treat the disease

B. the alternative treatment is not easily available to most people

C. malaria has developed its ability to resist parasites

D. nobody knows what will be the drug to treat the disease

高二英语阅读理解中等难度题查看答案及解析

One day we will manage to ______ the world ______ this terrible disease—cancer.

高二英语单项填空简单题查看答案及解析

---The terrible earthquake brought about a loss of $15 million to this island country.

---___.

高二英语单项填空中等难度题查看答案及解析

Bolivia has a population three and a half million . About one tenth of the total population are white ; one-fourth are mixed Indians and white ; and more than half are full-blooded Indians . The government and the industries are under the control of the white people .

The Indians today live in much the same way as their ancestors . Most of them are farmers . Many work in the mines , for mining is the most important industry on Bolivia’s . Of all the mining products , tin is the most important , which makes up three-fourths of all Bolivia’s exports . The eastern slopes of the Andes , since there are very few roads there , are fertile but not highly developed . The two primary means of transportation are river boats and porters . East of the hill region are the great plains where tropical plants are grown . A serious problem for Bolivia is the transport of food from the warm regions , where it is grown to the mountainous regions , where most of the people live .

Bolivia gained its independence from Spain about a hundred years ago . It has been slow in developing , but its rich resources promise a better future in it .

1.The majority of the Bolivian population are ________.

2.The Indian’s way of life today is________

3.The main product Bolivia exports is________

4.Bolivia has been slow in developing , but it has hope for a better future because of its ________.

高二英语阅读理解中等难度题查看答案及解析

Bolivia has a population of three and a half million. About one tenth of the total population are white; one-fourth are mixed Indians and white; and more than half are full-blooded Indians. The government and the industries are under the control of the white people.

The Indians today live in much the same way as their ancestors. Most of them are farmers. Many work in the mines, for mining is the most important industry on Bolivia’s. Of all the mining products, tin is the most important, which makes up three-fourths of all Bolivia’s exports. The eastern slopes of the Andes, since there are very few roads there, are fertile but not highly developed. The two primary means of transportation are river boats and porters. East of the hill region is the great plains where tropical plants are grown. A serious problem for Bolivia is the transport of food from the warm regions, where it is grown to the mountainous regions, where most of the people live.

Bolivia gained its independence from Spain about a hundred years ago. It has been slow in developing, but its rich resources promise a better future in it.

1..

The majority of the Bolivian population are ________ .

A. full-blooded Indians                        B. mixed Indian and white

C. white citizens                              D. all whites and mixed-blooded people

2..

. The Indian’s way of life today is  .

A. quite different from that of their ancestors  B. quite interesting

C. almost the same as their ancestors’        D. very exciting

3..

The main product Bolivia exports is  ________ .

A. tropical plants                                    B. gold and silver              C. tin                                                              D. food

4..

Bolivia has been slow in developing, but it has hope for a better future because of its ________ .

A. mining products                             B. rich resources

C. independence from Spain                     D. two primary means of transportation

高二英语阅读理解简单题查看答案及解析

Light travels at a speed which is about a million times faster than the speed of sound. In one second, light travels about 300,000 km, but sound travels only 344m. You can get some idea of this difference by watching the start of a race. If you stand some distance away from the starter, you can see smoke come from his gun before the sound reaches your ears. This great speed of light produces some strange facts. Sunlight takes about 8 minutes to reach us. If you look at the light of the moon tonight, remember that the light rays（光线）left the moon 1.3 seconds before they reached you. The nearest star is so far away that the light which you can see from it tonight started to travel towards you four years ago at a speed of nearly 2 million km per minute. In some cases the light from one of tonight’s stars started on its journey to you before you were born.

Thus, if we want to be honest, we cannot say “The stars are shinning tonight.” We have to say, “The stars look pretty. They were shining four years ago but their light has only just reached Earth.”　

1.If you stand 200 meters away from a man who is firing a gun to start a race, you will find out that _____.

A. you can hear the gun before you see the smoke.

B. sound does not travel as fast as light.

C. the sound of the gun will reach you before the man fires his gun.

D. sound travels about a million times faster than light.

2.Sunlight clearly _____ than the light of the moon.

A. has to travel a greater distance　

B. moves less quickly

B. travels much more quickly　　

D. is less powerful

3.What does “it” in the second paragraph refer to?

A. moon light　　 　　　　　　　　　 B. light rays

C. the nearest star　 　　　　　　 D. the moon

4.The light of the nearest star you see tonight has been ______ for years.

A. on the earth　　　　　　　　　 B. on the moon　　

C. away from the sun　　　　　　 D. away from the star

高二英语阅读理解中等难度题查看答案及解析

For well over a thousand years，smallpox was a disease that everyone feared．The disease killed much of the native population in South America when the Spanish arrived there in the early sixteenth century．By the end of the eighteenth century，smallpox was responsible for about one in

ten deaths around the world．Those who survived the disease were left with ugly scars on their sjun．

It had long been well known among farmers that people who worked with cows seldom caught smallpox；instead，they often caught a similar but much milder disease called cowpox (牛痘) ．A Bridsh doctor called Jenner was extremely interested in this，and so he studied cowpox He believed that，by vaccinating (给接种疫苗) people with the disease，he could protect them against the much worse disease smallpox．In 1796，he vaccinated a boy with cowpox and，two months later，with smallpox．The boy did not get smallpox．In the next two years，Jenner vaccinated several children in the same way，and none of them got the disease．

News of the success of Jenner’s work soon spread．Vaccination soon became a common method to protect people against other diseases caused by virus，such as rable (狂犬病)，and vaccines (疫苗) were sent across the world to the United States and India．

It took nearly two centuries to achieve Jenner’s dream of getting free of smallpox from the whole world．In 1967，the world Health Organization (WHO) started a great vaccination program，and the last known case of smallpox was recorded in Somalia in 1977．The story of vaccinations does not end there，however．There are many other diseases that kill more and more people every year．Besides，many new diseases are being discovered．The challenge for medical researchers will，therefore，probably continue for several more centuries

1.Smallpox was so serious that________by the end of l8th century

A．its death rate was up to ten percent

B．those who caught it were certain to die

C．one in ten people in the world died of smallpox

D．one in ten deaths in the world was caused by smallpox

2.Edward Jenner discovered that vaccination with cowpox could________

A．make smallpox much milder

B．stop people from getting smallpox

C．protect people against any disease

D．prevent people’s scars after smallpox

3.Which of the following statements is not true?

A．The first experiment with cowpox was made by a British doctor

B．After 1977 smallpox disappeared around the world according to WHO．

C．Vaccination had existed among ordinary farmers before being discovered

D．Vaccination can be used to protect people in the world against not only smallpox

4.The author of the passage thinks that________

A．vaccinations bring many new problems

B．vaccinations end the spread of diseases

C．there is a long way to go to fight against diseases

D．there is along way to go to discover new diseases

高二英语阅读理解简单题查看答案及解析

—If not controlled, some terrible diseases will spread in the stricken areas after the terrible earthquake.

—So people there are in _____ need of medical teams.

A．anxious           B．permanent        C．specific           D．desperate

高二英语单项填空简单题查看答案及解析