Both humans and animals have enemies. It is e...

Both humans and animals have enemies. It is easy for us to know the difference between our friends and our enemies. But can other animals do the same? Elephants can! They can use their sense of vision and smell to tell the difference between people who mean a threat and those who do not. In Kenya, researchers find that elephants react differently to clothing worn by men of the Maasai and Kamba ethnic groups. Young Maasai men hunt animals and thus mean a threat to elephants; Kamba men are mainly farmers and are not a danger to elephants.

In an experiment conducted by animal scientists, elephants were first presented with clean clothing or clothing that had been worn for five days by either a Maasai or a Kamba man. When the elephants noticed the smell of clothing worn by a Maasai man, they moved away from the smell faster and took longer to relax than when they noticed the smells of either clean clothing or clothing worn by a Kamba man.

Clothing color also plays a role. In the same study, when the elephants saw red clothing not worn before, they reacted angrily, as red is typically worn by Maasai men. Rather than running away as they did with the smell, the elephants acted angrily toward the red clothing.

The researchers believe that the elephants’ emotional reactions are due to their different senses of smell and sight. Smelling a possible danger means that a threat is nearby and the best thing to do is run away and hide. Seeing a potential threat without its smell means that risk is low. Therefore, instead of showing fear and running away, the elephants express their anger and become aggressive.

1.The author wrote the text in order to tell us that elephants are _____.

A. dangerous　　 B. friendly　　 C. clever　　 D. naughty

2.How did the elephants react to smells in the study?

A. They attacked a man with the smell of new clothing.

B. They needed time to relax when smelling something unfamiliar.

C. They became anxious when they smelled Kamba-scented clothing.

D. They were frightened and ran away when they smelled their enemies.

3.What can be inferred about the elephants’ behavior from this text?

A. Elephants can tell enemies from friends.

B. Elephants have a sharper sense of smell than sight.

C. Elephants are more intelligent than other animals.

D. Elephants tend to attack rather than escape when in danger.

4.In which section of a magazine will the text be most probably found?

A. Business.　　 B. Fashion.　　 C. Nature.　　 D. News.

高二英语阅读理解困难题查看答案及解析

It is easy for us to tell our friends from our enemies. But can other animals do the same? Elephants can! They can use their sense of vision and smell to tell the difference between people who pose a threat and those who do not.

In Kenya, researchers found that elephants react differently to clothing worn by men of the Maasai and Kamba ethnic groups. Young Maasai men spear animals and thus pose a threat to elephants; Kamba men are mainly farmers and are not a danger to elephants.

In an experiment conducted by animal scientists, elephants were first presented with clean clothing or clothing that had been worn for five days by either a Maasai or a Kamba man. When the elephants detected(察觉)the smell of clothing worn by a Maasai man, they moved away from the smell faster and took longer to relax than when they detected the smells of either clothing worn by Kamba men or clothing that had not been worn at all.

Clothing color also plays a role, though in a different way. In the same study, when the elephants saw red clothing not worn before, they reacted angrily, as red is typically worn by Maasai men. Rather than running away as they did with the smell, the elephants acted aggressively toward the red clothing.

The researchers believe that the elephants’ emotional reactions are due to their different interpretations of the smells and the sights. Smelling a potential danger means that a threat is nearby and the best thing to do is run away and hide. Seeing a potential threat without its smell means that risk is low. Therefore, instead of showing fear and running away, the elephants express their anger and become aggressive.

1.According to the passage, which of the following statements is TRUE about Kamba and Maasai people?

A．Maasai people are a threat to elephants.

B．Kamba people raise elephants for farming.

C．Both Kamba and Maasai people are elephant hunters.

D．Both Kamba and Maasai people traditionally wear red clothing.

2. How did the elephants react to smell in the study?

A．They attacked a man with the smell of new clothing.

B．They needed time to relax when smelling something unfamiliar.

C．They became anxious when they smelled Kamba-scented(有…气味的) clothing.

D．They were frightened and ran away when they smelled their enemies.

3. What is the main idea of this passage?

A．Elephants use sight and smell to detect danger.

B．Elephants attack people who wear red clothing.

C．Scientists are now able to control elephants’ emotions.

D．Some Kenyan tribes understand elephants’ emotions very well.

4.What can be inferred about the elephants’ behavior from this passage?

A．Elephants learn from their experience.

B．Elephants have sharper sense of smell than sight.

C．Elephants are more intelligent than other animals.

D．Elephants tend to attack rather than escape when in danger.

高二英语阅读理解中等难度题查看答案及解析

It is not always easy for the public to see _______ use a new invention can be of to human life.

A. whose      B. what       C. which       D. that

高二英语单项填空中等难度题查看答案及解析

It is not always easy for the public to see _______ use a new invention can be of to human life.

A．whose            B．which            C．that              D．what

高二英语单项填空中等难度题查看答案及解析

It hasn’t been ______ that food from cloned animals is really safe for humans to eat.

A. confirmed　　　　　　 B. considered

C. turned out　　　　　 D. proved

高二英语单项填空中等难度题查看答案及解析

How to keep healthy? It’s easy for us to catch a cold in spring and winter because the weather changes a lot in spring and it is too cold in winter. But if we take care in our life, all of us can keep healthy without any cold.

1.This will stop germs (细菌) passing from one person to another. When you finish your work or before you eat, you’d better wash your hands.

2.Use a tissue and then throw it into dustbins at once. When others around you are coughing, I advise you to turn your head away from the people so that their virus (病毒) won’t reach you.

Get more fresh air. Germs like staying around in dry and warm rooms. 3.Don’t stay too long in the places with too many people.

If flu is going round house or school, you should try to stay away from those who are ill. 4.

Boil your toothbrush for about a minute. This kills germs. 5. If you have used the toothbrush for three months or so, throw it away and buy a new one.

A. Have a shower every day.

B. Wash your hands often.

C. Don’t use your hands when coughing.

D. Don’t go out often when you are coughing.

E. Besides, don’t use the same toothbrush too long.

F. In this way, you won’t be infected by those people.

G. So you’d better stay in the places with more fresh air.

高二英语七选五困难题查看答案及解析

It is easy for many people to catch a cold in the springtime or fall. It makes us wonder if scientists can send a man to the moon, why can’t they find a cure for the common cold? The answer is easy. There are actually hundreds of kinds of cold viruses out there. You never know which one you will get, so there isn’t a cure for each one.

When a virus attacks your body, your body works hard to get rid of it. Blood rushes to your nose and cause a block in it. You feel terrible because you can’t breathe well, but your body is actually eating the virus. Your temperature goes up and you get a fever, but the heat of your body is killing the virus. You also have a runny nose to stop the virus from getting into your cells. You may feel very uncomfortable, but actually your wonderful body is doing everything it can to kill the cold.

Different people do different things to deal with colds. In the United States and some other countries, for example, people might eat chicken soup to make themselves feel better. Some people take hot baths and drink warm liquids. Other people take medicine to stop various symptoms (症状) of colds.

There is one interesting thing to note —some scientists say taking medicines when you have a cold is actually bad for you. The virus stays in you longer because your body doesn’t have a way to fight it and kill it. Bodies can do an amazing job on their own. There is a joke, however, on taking medicine when you have a cold. It goes like this:

It takes about one week to get over a cold if you don’t take medicine, but it takes only seven days to get over a cold if you take medicine.

高二英语任务型阅读中等难度题查看答案及解析

People have wondered for a long time how their personalities and behavior are formed. It is not easy to explain why one person is intelligent and another is not, or why one is cooperative and another is competitive.　

Social scientists are of course extremely interested in these types of questions. They want to explain why we possess certain characteristics and exhibit certain behavior. There are no clear answers yet, but two distinct schools of thought on the matter have developed. As one might expect, the two approaches are very different from each other, and there is a great deal of debate between proponents of each theory. The controversy is often conveniently referred to as “nature and nurture”．

Those who support the “nature” side of the conflict believe that our personalities and behavior patterns are largely determined by biological factors. That our environment has little, if anything, to do with our abilities, characteristics and behavior is central to this theory. Taken to an extreme，this theory states that our behavior is predetermined to such a great degree that we are almost completely governed by our instincts(本能)．

Proponents of the “nurture” theory, or, as they are often called, behaviorists, claim that our environment is more important than our biologically based instincts in determining how we will act. A behaviorist, B. F. Skinner, sees humans as beings whose behavior is almost completely shaped by their surroundings. The behaviorists' view of the human being is quite mechanistic. They state that, like machines, humans respond to environmental stimuli (刺激) as the basis of their behavior.　

Socially and politically, the consequences of these two theories are far-reaching. In the US，for example, blacks often score below whites on standardized intelligence tests. This leads some “nature” proponents to conclude that blacks are genetically lower in status than whites. Behaviorists, on the contrary, say that the differences in scores are due to the fact that blacks are often robbed of many of the educational and other environmental advantages that whites enjoy, and that, as a result, they do not develop the same responses that whites do.

Neither of these theories can yet fully explain human behavior. In fact, it is quite likely that the key to our behavior lies somewhere between these two extremes and that the controversy will continue for a long time is certain.　

1.This passage is mainly concerned with ________.

A. relation between personality and behavior

B. relation between behavior and environment

C. different accounts of patterns of human behavior

D. different theories of the formation of human behavior　

2.The underlined word “proponents” in Paragraph 2 means ________.

A. creators　　     B. advisors　　

C. advocates　　 D. judges　

3.In Paragraph 5, the author mainly writes about ________.

A. the considerable influence of the two theories

B. differences between the blacks and whites

C. racial discrimination in the United States

D. different responds to intelligence tests　

4.What's the author's purpose in writing the passage?

A. To call our attention to the changes of human behavior.

B. To urge scientists to do more research in social science.

C. To give us a detailed explanation of human behavior.

D. To present an argument in the field of social science.

高二英语阅读理解中等难度题查看答案及解析

People have wondered for a long time how their personalities and behaviors are formed．It is not easy to explain why one person is intelligent and another is not, or why one is cooperative （合作的）and another is competitive．

Social scientists are, of course, extremely interested in these types of questions．They want to explain why we possess certain characteristics and exhibit certain behaviors．There are no clear answers yet, but two distinct schools of thought （学派）on the matter have developed．As one might expect, the two approaches are very different from one another, and there is a great deal of debate between proponents of each theory．The controversy（argument) is often referred to as “nature and nurture（教育）”．

Those who support the “nature” side of the conflict believe that our personalities and behavior patterns are largely determined by biological and genetic factors．That our environment has little, if anything, to do with our abilities, characteristics, and behavior is central to this theory．Taken to an extreme(走极端）, this theory maintains that our behavior is predetermined to such a degree that we are almost completely governed by our instincts（本能）．

Proponents of the “nurture” theory, or, as they are often called, behaviorists, claimed that our environment is more important than our biologically based instincts in determining how we will act．A behaviorist, B．F．Skinner, sees humans as beings whose behavior is almost completely shaped by their surroundings．The behaviorists’ view of the human being is quite mechanistic（机械论的）; they maintain that, like machines, humans’ respond to environmental stimuli（刺激） as the basis of their behavior．

Socially and politically, the consequences of these two theories are far-reaching．In the US, for example, blacks often score below whites on standardized intelligence tests．This leads some proponents to conclude that blacks are genetically lower in status than whites．Behaviorists, on the contrary, say that the differences in scores are due to the fact that blacks are often robbed of many of the educational and other environmental advantages that whites enjoy, and that, as a result, they do not develop the same responses that whites do．

Either of these theories cannot yet fully explain human behavior．In fact, it is quite likely that the key to our behavior lies somewhere between these two extremes. That the controversy will continue for a long time is certain．

1.This passage is mainly concerned with________．

2.The underlined word " proponents'' in paragraph 2 means________．

3.In paragraph 5 , the author mainly writes about________．

4.What's the author's purpose in writing the passage?

高二英语阅读理解困难题查看答案及解析

People have wondered for a long time how their personalities and behavior are formed. It is not easy to explain why one person is intelligent and another is not, or why one is cooperative and another is competitive.　

Social scientists are of course extremely interested in these types of questions. They want to explain why we possess certain characteristics and exhibit certain behavior. There are no clear answers yet, but two distinct schools of thought on the matter have developed. As one might expect, the two approaches are very different from each other, and there is a great deal of debate between proponents of each theory. The controversy is often conveniently referred to as “nature and nurture”．

Those who support the “nature” side of the conflict believe that our personalities and behavior patterns are largely determined by biological factors. That our environment has little, if anything, to do with our abilities, characteristics and behavior is central to this theory. Taken to an extreme，this theory states that our behavior is predetermined to such a great degree that we are almost completely governed by our instincts(本能)．

Proponents of the “nurture” theory, or, as they are often called, behaviorists, claim that our environment is more important than our biologically based instincts in determining how we will act. A behaviorist, B. F. Skinner, sees humans as beings whose behavior is almost completely shaped by their surroundings. The behaviorists' view of the human being is quite mechanistic. They state that, like machines, humans respond to environmental stimuli (刺激) as the basis of their behavior.　

Socially and politically, the consequences of these two theories are far-reaching. In the US，for example, blacks often score below whites on standardized intelligence tests. This leads some “nature” proponents to conclude that blacks are genetically lower in status than whites. Behaviorists, on the contrary, say that the differences in scores are due to the fact that blacks are often robbed of many of the educational and other environmental advantages that whites enjoy, and that, as a result, they do not develop the same responses that whites do.

Neither of these theories can yet fully explain human behavior. In fact, it is quite likely that the key to our behavior lies somewhere between these two extremes and that the controversy will continue for a long time is certain.　

1.This passage is mainly concerned with ________.

A. relation between personality and behavior

B. relation between behavior and environment

C. different accounts of patterns of human behavior

D. different theories of the formation of human behavior　

2.The underlined word “proponents” in Paragraph 2 means ________.

A. creators　　     B. advisors　　     C. advocates　　     D. judges　

3.In Paragraph 5, the author mainly writes about ________.

A. the considerable influence of the two theories

B. differences between the blacks and whites

C. racial discrimination in the United States

D. different responds to intelligence tests　

4.What's the author's purpose in writing the passage?

A. To call our attention to the changes of human behavior.

B. To urge scientists to do more research in social science.

C. To give us a detailed explanation of human behavior.

D. To present an argument in the field of social science.

高二英语阅读理解中等难度题查看答案及解析