A bite from a tsetse fly is an extremely unpl...

A bite from a tsetse fly is an extremely unpleasant experience.To make matters worse,several species of tsetse fly can transmit diseases.One of the most dangerous is a parasite（寄生虫）that causes "sleeping sickness".

After the initial bite,sleeping sickness symptoms often start with a fever,headaches and aching muscles.As the illness goes on,those infected become increasingly tired,which is where it gets its name.

It is worth noting that sleeping sickness is no longer as deadly as it once was.In the early 20th Century several hundred thousand people were infected each year.By the 1960s the disease was considered "under control" and had reached very low numbers,making its spread more difficult.But in the 1970s there was another major infection,which took 20 years to control.Since then,better screening programs and earlier treatments have reduced the number of cases dramatically.In 20is this figure dropped to fewer than 3,000.The World Health Organization (WHO) hopes the disease will be completely removed by 2020.More problematically,a series of new studies have shown that the parasite is more complicated than previously believed.

Sleeping sickness has always been considered—and analyzed—as a blood disease,because the parasites can readily be discovered in the blood of its victims.However,in a recent study found that the parasite can stay in the skin and fat,as well as in the blood.There may even be a higher density（密度）of the parasite in the skin than in the blood. That means a person can have no symptoms but still both harbor the disease and spread it.The finding could explain the mysterious 1970s infection,and why the disease can spring up in areas that had previously been cleared.

1.What's the danger of a tsetse fly bite?

A. It makes people sleepy.　　 B. It causes skin disease.

C. It brings about deaths.　　 D. It transmits deadly parasites.

2.What can we infer about sleeping sickness from Paragraph 3?

A. It's still a threat to human health.　　 B. It's not that dangerous at present.

C. It's incurable in the early 20th century.　　 D. It's completely under control in the 1960s.

3.What does the underlined "harbor" most probably mean?

A. carry　　 B. resist　　 C. exchange　　 D. hide

4.What does the latest research indicate according to the passage?

A. Sleeping sickness is a blood disease.　　 B. Skin is more suitable for the parasite to grow.

C. Sleeping sickness can be spread with no signs.　　 D. Parasites in the skin caused the 1970s infection.

高三英语阅读理解中等难度题查看答案及解析

A bite from a tsetse fly is an extremely unpleasant experience. To make matters worse, several species of tsetse fly can transmit diseases. One of the most dangerous is a parasite(寄生虫) that causes "sleeping sickness".

After the initial bite, sleeping sickness symptoms often start with a fever, headaches and aching muscles. As the illness goes on, those infected become increasingly tired, which is where it gets its name.

It is worth noting that sleeping sickness is no longer as deadly as it once was. In the early 20th Century several hundred thousand people were infected each year. By the 1960s the disease was considered "under control" and had reached very low numbers, making its spread more difficult. But in the 1970s there was another major infection, which took 20 years to control. Since then, better screening programs and earlier treatments have reduced the number of cases dramatically. In 2000 this figure dropped to fewer than 3,000. The World Health Organization (WHO) hopes the disease will be completely removed by 2020. More problematically, a series of new studies have shown that the parasite is more complicated than previously believed.

Sleeping sickness has always been considered—and analyzed—as a blood disease, because the parasites can readily be discovered in the blood of its victims. However, in a recent study found that the parasite can stay in the skin and fat, as well as in the blood. There may even be a higher density（密度）of the parasite in the skin than in the blood. That means a person can have no symptoms but still both harbor the disease and spread it. The finding could explain the mysterious 1970s infection, and why the disease can spring up in areas that had previously been cleared.

1.What's the danger of a tsetse fly bite?

A. It makes people sleepy.　　 B. It causes skin disease.

C. It brings about deaths.　　 D. It transmits deadly parasites.

2.What can we infer about sleeping sickness from Paragraph 3?

A. It's still a threat to human health.

B. It's not that dangerous at present.

C. It's incurable in the early 20th century.

D. It's completely under control in the 1960s.

3.What does the underlined "harbor" most probably mean?

A. carry　　 B. resist　　 C. exchange　　 D. hide

4.What does the latest research indicate according to the passage?

A. Sleeping sickness is a blood disease.

B. Skin is more suitable for the parasite to grow.

C. Sleeping sickness can be spread with no signs.

D. Parasites in the skin caused the 1970s infection.

高三英语阅读理解中等难度题查看答案及解析

A bite from a tsetse fly (采采蝇) is an extremely unpleasant experience. It is not like a mosquito, which can put its thin mouthpart directly into your blood, often without you noticing. In contrast, the tsetse fly’s mouth has tiny saws on it that saw into your skin on its way to suck out your blood.

To make matters worse, several species of tsetse fly can transmit diseases. One of the most dangerous is a parasite that causes ＂sleeping sickness＂, or ＂human African trypanosomiasis＂to give it its official name. Without treatment, an infection is usually fatal.

Like so many tropical diseases, sleeping sickness has often been neglected by medical researchers. However, researchers have long endeavored to understand how it avoids our bodies’ defence mechanisms. Some of their insights could now help us eliminate sleeping sickness altogether.

There are two closely-related single-celled parasites that cause this deathly sleep: Trypanosoma brucei rhodesiense and T. b. gambiense. The latter is far more common: it is responsible for up to 95% of cases, mostly in western Africa. It takes several years to kill a person, while T. brucei rhodesiense can cause death within months. There are still other forms that infect livestock.

After the initial bite, sleeping sickness symptoms often start with a fever, headaches and aching muscles. As the illness goes on, those infected become increasingly tired, which is where it gets its name. Personality changes, severe confusion and poor coordination can also happen.

While medication does help, some treatments are toxic and can themselves be deadly, especially if they are given after the disease has reached the brain.

It is worth noting that sleeping sickness is no longer as deadly as it once was. In the early 20th Century several hundred thousand people were infected each year. By the 1960s the disease was considered ＂under control＂ and had reached very low numbers, making its spread more difficult. But in the 1970s there was another major epidemic, which took 20 years to control.

Since then, better screening programmes and earlier interventions have reduced the number of cases dramatically. In 2009 there were fewer than 10,000 cases for the first time since records began, and in 2015 this figure dropped to fewer than 3,000, according to the latest figures from the World Health Organisation. The WHO hopes the disease will be completely eliminated by 2020.

While this decline looks positive, there may be many more cases that go unreported in rural Africa. To eliminate the disease completely, infections have to be closely monitored.

More problematically, a series of new studies have shown that the parasite is more complicated than previously believed.

Sleeping sickness has always been considered —— and diagnosed —— as a blood disease, because T. brucei parasites can readily be detected in the blood of its victims.

1.A tsetse fly is different from a mosquito in that________.

A. it can put its thin mouthpart directly into your blood

B. all species of tsetse fly can transmit diseases

C. it can spread a parasite that causes ＂sleeping sickness＂

D. its mouth has larger saws than those on a mosquito

2.What can be learned about ＂sleeping sickness＂ according to the text ?

A. It is formally called＂human American trypanosomiasis＂.

B. If left untreated, it can possibly be deadly.

C. It remains as deadly as it used to be.

D. It usually draws attention from medical researchers.

3.What is implied in the last three paragraphs ?

A. ＂Sleeping sickness＂ will be completely eliminated by 2020.

B. The parasite causing ＂sleeping sickness＂ is easy to detect now.

C. T. brucei parasites can only be detected in the blood of its victims.

D. Data about ＂sleeping sickness＂cases may not be so accurate.

4.What would be the best title of this passage ?

A. A mosquito that can carry deadly diseases.

B. A bite from this fly puts you into a deadly sleep.

C. Symptoms that are characteristic of ＂sleeping sickness＂.

D. How to control deadly＂sleeping sickness＂ from a tsetse fly.

高三英语阅读理解简单题查看答案及解析

Living in a culture that is different from your own can be both an exciting and challenging experience. The following are six cultural differences between China and the US to help promote mutual understanding.

Chinese people do not have the same concept of privacy as Americans do. They talk about topics such as ages, income or marital status, which Americans think is annoying and disturbing.

Family

In China, elders are traditionally treated with great respect while the young are cared for. In America, the goal of the family is to encourage independence, particularly that of the children. Unlike the Chinese, older Americans seldom live with their children.

Friends

Chinese people have different meanings to define friends. Just hanging out together time to time is not friendship. Friendship means lifelong friends who feel it deeply necessary to give each other whatever help might seem required. Americans always call people they meet friends, so the definition of friends is general and different. There are work friends, playing friends, school friends and drinking friends.

Money

As is well known,the Chinese like to save. They are always conservative when they are planning to spend money. It is different in the US, where far fewer families are saving money for emergencies and education than their Chinese counterparts（对应面）.

Education

Chinese people value education and career more than Americans, who in turn put more emphasis on good character and faith.

Team VS Individual

Basically China values the community and the US values the individual. If you achieve something in the US, it’s because you are great. While in China, if you achieve something it’s because the team, or family, or company is great. Everything you do gets attributed to the greater whole, while in America individual merits （功绩）are celebrated.

1.Which is the most appropriate word to show the first cultural difference?

A. Privacy.            B. Income.            C. Age.            D. Marriage.

2.Which is true according to the passage?

A. American parents seldom live with their children.

B. There is no friendship between American people drinking together.

C. Chinese people are usually generous with money to spend.

D. Americans value good character and faith in terms of education.

3.Which one is similar to the underlined phrase?

A. is attached to　　 　 　 B. brings in

C. is promoted to　　　　 D. results in

高三英语阅读理解中等难度题查看答案及解析

Living in a culture that is different from your own can be both an exciting and challenging experience. You have to learn different cultural practices and try to adapt to them.

1. They talk about topics such as ages, income or marital status, which Americans think is annoying and instructive (侵犯的).

In China, elders are traditionally treated with enormous respect and dignity while the young are cherished and nurtured. In America, the goal of the family is to encourage independence, particularly that of the children. 2.

Chinese people have their own way to define friends. 3. Friendship means lifelong friends who feel deeply obliged to give each whatever help might seem required. Americans always call people they meet friends, so the definition of friends is general and different. There are work friends, playing friends, school friends and drinking friends.

As is well known, the Chinese like to save. 4. It is different in the US, where for fewer families are saving money for emergencies and education than their Chinese counterparts.

5. If you achieve something in the US, it’s because you are great. While in China, if you achieve something it’s because the team, or family, or company is great. Everything you do gets attributed to the greater whole, while in America individual merits are celebrated.

A.Just hanging out together from time to time is not friendship.

B.Chinese people put more emphasis on good character and faith.

C.More often than not, they call casual acquaintances friends.

D.They are always conservative when they are planning to spend money.

E.Basically China values the community and the US values the individual.

F.Chinese people do not have the same concept of privacy as Americans do.

G.Unlike the Chinese, older Americans seldom live with their children.

高三英语七选五中等难度题查看答案及解析

Living in a culture that is different from your own can be both an exciting and challenging experience. 1. Here are some major cultural differences between China and the US to help promote mutual understanding.

Privacy

Chinese people do not have the same concept of privacy as Americans do. They talk about topics such as ages, income or marital status, which Americans think is annoying and intrusive(侵扰的).

Family

In China, elders are traditionally treated with enormous respect and dignity while the young are cherished and nurtured. In America, the goal of the family is to encourage independence, particularly that of the children. 2.

Friends

Chinese people have different meanings to define friends. 3. Friendship means lifelong friends who feel deeply obligated to give each other whatever help might seem required. Americans always call people they meet friends, so the definition of friends is general and different. There are work friends, playing friends, school friends and drinking friends.

Money

4. They are always conservative when they are planning to spend money. It is different in the USA, where far fewer families are saving money for emergencies and education than their Chinese counterparts.

5.

Basically, China values the community and the US values the individual. If you achieve something in the US, it's because you were great. While in China, if you achieve something in China it's because the team, or family, or company is great. Everything you do gets attributed to the greater whole, while in America individual merits are celebrated.

A.Collectivism vs. Individualism

B.Education and Career vs. Character and Faith

C.You're welcome to leave your comments.

D.As is known to all, the Chinese like to save.

E.Just hanging out together time to time is not friendship.

F.You have to learn different cultural practices and try to adapt to them.

G.Unlike the Chinese, older Americans seldom live with their children.

高三英语七选五中等难度题查看答案及解析

Living in a culture that is different from your own can be both an exciting and challenging experience. You have to learn different cultural practices and try to adapt to them.

1. They talk about topics such as ages, income or marital status, which Americans think is annoying and intrusive.

In China, elders are traditionally treated with enormous respect and dignity while the young are cherished and nurtured. In America, the goal of the family is to encourage independence, particularly that of the children.2..

Chinese people have different meanings to define friends. 3.Friendship means lifelong friends who feel deeply obligated to give each other whatever help might seem required. Americans always call people they meet friends, so the definition of friends is general and different. There are work friends, playing friends, school friends and drinking friends.

As is well known, the Chinese like to save. 4. It is different in the USA, where far fewer families are saving money for emergencies and education than their Chinese counterparts.5. If you achieve something in the US, it's because you were great. While in China, if you achieve something in China it's because the team, or family, or company is great. Everything you do gets attributed to the greater whole, while in America individual merits are celebrated.

A. Just hanging out together time to time is not friendship.

B. Chinese people put more emphasis on good character and faith.

C.Chinese people value education and career more than Americans.

D. They are always conservative when they are planning to spend money.

E. Basically China values the community and the US values the individual.

F. Chinese people do not have the same concept of privacy as Americans do

G.Unlike the Chinese, older Americans seldom live with their children.

高三英语七选五中等难度题查看答案及解析

Noise is unpleasant, _____ when you are trying to sleep．

A． especially                                        B． specially

C． extremely                                         D． naturally

高三英语单项填空中等难度题查看答案及解析

Noise is unpleasant, _____ when you are trying to sleep.

高三英语单项填空中等难度题查看答案及解析

Noise is unpleasant, ________ when you are trying to sleep.

高三英语单项填空中等难度题查看答案及解析