You cannot tell________looking at someone whe...

You cannot tell________looking at someone whether or not he has HIV.

A．without　    B．by

C．for　    D．with

高三英语单项填空简单题查看答案及解析

You can tell a lot about people by looking at their hair — not just whether they brush, spray or blow-dry. Scientists have found a way to use hair to figure out where a person is from and where that person has been. The finding could help solve crimes, among other useful applications.

Water is central to the new technique. The liquid makes up more than half an adult human’s body weight. Our bodies break water down into hydrogen(氢) and oxygen. Atoms of these two elements end up in our tissues, fingernails, and hair.

But not all water is the same. Hydrogen and oxygen atoms can vary in how much they weigh. In the case of hydrogen, for example, there are three types according to their weights. Each type is called a hydrogen isotope(同位素). And depending on where you live, tap water contains different isotopes.

Can hair record this information? That’s what James R. Ehleringer, an environmental chemist at the University of Utah, wondered. To find it out, he and his colleagues collected hair from hair stylists in 65 cities across the United States. Even though people drink a lot of bottled water these days, the researchers have found that people’s hair has the same isotopes as found in local tap water. That’s probably because people usually cook their food with the local water.

Authorities can now use the information to analyze hair samples from criminals or crime victims and narrow their search for clues. For example, one hair sample used in Ehleringer’s study came from a man who had moved from San Francisco to Salt Lake City. As his hair grew, it reflected his change in location.

1.What do we know about the hydrogen isotopes according to Paragraph 3?

A. They are classified by size.

B. Each type of them differs in weight.

C. They can improve the quality of tap water.

D. Some of them cannot combine with oxygen.

2.Why is it possible to know where people are from by analyzing their hair?

A. People use the same bottled water.

B. People wash their hair in different ways.

C. People’s hair is affected by the weather of the places they stay.

D. People’s hair indicates the type of water in the places they stay.

3.The last paragraph is mainly to show _______.

A. how to recognize criminals　　 B. how to collect hair samples

C. the usefulness of hair analysis　　 D. the process of Ehleringer’s study

4.Which of the following can be the best title for the passage?

A. Water composition　　 B. Change your hair

C. Hair detectives　　 D. No way out

高三英语阅读理解困难题查看答案及解析

阅读理解。

Contrary to popular belief, looking at someone's face alone is not enough to tell us whether they are roaring in celebration or screaming in frustration, researchers claimed.While people may believe they have the ability to read each other's faces, body language is the real clue that shows whether strong emotions someone is feeling are positive or negative.

In a study, groups of participants were shown a series of facial expressions such as tennis players photographed just after winning or losing a point.

In some cases the volunteers were able to see the player's full body, but in others they were only shown either their face or their body with the other removed.

Participants could clearly tell whether the players were winning or losing when they were shown the full picture or just the body, but their guesses were no better than chance when based on the face alone.

Those who were allowed to see the full image were convinced they had made their judgment based on the players' facial expressions even though results from the two other groups suggested otherwise.

The researchers carried out a second study where participants were shown a wider range of faces showing emotions including joy, pleasure, victory, pain and defeat.

Using photo­editing software, the researchers attached the faces to bodies expressing the opposite emotion, and asked participants to act out the emotions they saw in the photos.

The resulting poses were like the body poses in the photographs but not the facial expressions, demonstrating that people base their interpretation of strong emotions not on the face but the body.

Dr Aviezer, who led the study, said, “These results show that when emotions become extremely intense, the difference between positive and negative facial expressions becomes unclear.The results may help researchers understand how our body interacts during emotional situations.For example, individuals may fail to recognize facial expressions, but if they are trained to process important body language, their performance may significantly improve.”

1.People tend to believe that ________.

A.someone's body language has an effect on their feelings

B.reading someone's face alone cannot tell their feelings

C.someone's body language is the only clue to their feelings

D.someone's feelings can be read by their facial expressions

2.What do we know about the first study?

A.The participants were divided into four groups.

B.All participants were given the same pictures to see.

C.It proved that emotions influence people's body language.

D.Participants could tell the players' feelings when seeing the full picture.

3.What did Dr Aviezer think of the results of the study?

A.Ridiculous.　　 　　　　 　 B.Useless.

C.Unrealistic.　　 　　　　 D.Helpful.

4.Which of the following can summarize the main idea of the passage?

A.Body rather than eyes is the window of the soul.

B.Facial expressions can reflect the emotions clearly.

C.Researchers link emotions to body language through software.

D.Two studies focus on the link between body language and emotions.

高三英语阅读理解中等难度题查看答案及解析

Whether you’re eating at a fancy restaurant or dining in someone’s home, proper table manners are likely to help you make a good impression. According to a US expert, Emily Post, “All rules of table manners are made to avoid ugliness.”

While Henry Hitchings of the Los Angeles Times admits that good manners can reduce social conflict, he points out that mostly their purpose is protective – they turn our natural warrior-like selves into more elegant ones.

So where did table manners come from?

In medieval England, a writer named Petrus Alfonsi took the lead to urge people not to speak with their mouths full. And King David I of Scotland also proposed that any of his people who learned to eat more neatly be given a tax deduction (减除).

Disappointingly, that idea never caught on. It was during the Renaissance, when there were real technical developments, opinions of correct behavior changed for good. “None of these was more significant than the introduction of the table fork,” wrote Hitchings. “Gradually, as forks became popular, they brought the new way of eating, making it possible, for instance, to consume berries without making one’s fingers dirty.”

Forks were introduced to Britain in 1608 and 25 years later, the first table fork reached America. Yet while most of the essentials (基本要素) are the same on both sides of the Atlantic, there are a few clear differences between what’s normal in the US and what holds true in the UK. For example, in the US, when food needs cutting with a knife, people generally cut a bite, then lay aside the knife and switch the fork to their right hand. Then they pick up one bite at a time. By contrast, Britons keep the fork in the left hand and don’t lay the knife down.

Though globalization has developed a new, simpler international standard of table manners, some people still stick with the American cut-and-switch method.The Los Angeles Times noted, “They are hanging on to a form of behavior that favors manners above efficiency.”

1.What does the story mainly talk about?

A. The importance of proper table manners .

B. The development of table manners in Western countries.

C. Some unwritten rules of table manners in the US and UK.

D. Differences between American and British table manners.

2.The underlined phrase “caught on” in the passage probably means ______.

A. worked in practice 　　　　　　　　 B. became popular

C. drew attention 　　　　　　　　　　　 D. had a positive effect

3.Which of the following events influenced people’s table manners most according to the article?

A. The introduction of forks.

B. The tax deduction policy.

C. The rise of the Renaissance.

D. Petrus Alfonsi’s efforts in promoting table manners.

4.What can we conclude from the article?

A.British and American table manners are completely different from each other.

B.American people pay more attention to their table manners than British people do.

C.With globalization, the American cut-and-switch method has been abandoned in the US.

D.British people’s way of using a knife and fork may be more efficient than American people’s.

高三英语阅读理解中等难度题查看答案及解析

Whether you’re eating at a fancy restaurant or dining in someone’s home, proper table manners are likely to help you make a good impression. According to a US expert, Emily Post, “All rules of table manners are made to avoid ugliness.”

While Henry Hitchings of the Los Angeles Times admits that good manners can reduce social conflict, he points out that mostly their purpose is protective — they turn our natural warrior_ like selves into more elegant ones.

So where did table manners come from?

In medieval England, a writer named Petrus Alfonsi took the lead to urge people not to speak with their mouths full. And King David I of Scotland also proposed that any of his people who learned to eat more neatly be given a tax deduction (减除).

Disappointingly, that idea never caught on. It was during the Renaissance, when there were real technical developments, opinions of correct behavior changed for good. “None of these was more significant than the introduction of the table fork,” wrote Hitchings. “Gradually, as forks became popular, they brought the new way of eating, making it possible, for instance, to consume berries without making one’s fingers dirty.”

Forks were introduced to Britain in 1608 and 25 years later, the first table fork reached America. Yet while most of the essentials (基本要素) are the same on both sides of the Atlantic, there are a few clear differences between what’s normal in the US and what holds true in the UK. For example, in the US, when food needs cutting with a knife, people generally cut a bite, then lay aside the knife and switch the fork to their right hand. Then they pick up one bite at a time. By contrast, Britons keep the fork in the left hand and don’t lay the knife down.

Though globalization has developed a new, simpler international standard of table manners, some people still stick with the American cut-and-switch method. The Los Angeles Times noted, “They are hanging on to a form of behavior that favors manners above efficiency.”

1.What does the story mainly talk about?

A.The importance of proper table manners.

B.The development of table manners in Western countries.

C.Some unwritten rules of table manners in the US and UK.

D.Differences between American and British table manners.

2.The underlined phrase “caught on” in the passage probably means ________.

A.worked in practice

B.became popular

C.drew attention

D.had a positive effect

3.Which of the following events influenced people’s table manners most according to the article?

A.The introduction of forks.

B.The tax deduction policy.

C.The rise of the Renaissance.

D.Petrus Alfonsi’s efforts in promoting table manners.

4.What can we conclude from the article?

A.British and American table manners are completely different from each other.

B.American people pay more attention to their table manners than British people do.

C.With globalization, the American cut-and-switch method has been abandoned in the US.

D.British people’s way of using a knife and fork may be more efficient than American people’s.

高三英语阅读理解中等难度题查看答案及解析

Whether you’re eating at a fancy restaurant or dining in someone’s home，proper table manners are likely to help you make a good impression．According to a US expert，Emily Post，“All rules of table manners are made to avoid ugliness．”

While Henry Hitchings of the Los Angeles Times admits that good manners can reduce social conflict，he points out that mostly their purpose is protective – they turn our natural warrior　　　　　　　　 like selves into more elegant ones．

So where did table manners come from？

In medieval England，a writer named Petrus Alfonsi took the lead to urge people not to speak with their mouths full．And King David I of Scotland also proposed that any of his people who learned to eat more neatly be given a tax deduction (减除)．

Disappointingly，that idea never caught on．It was during the Renaissance，when there were real technical developments，opinions of correct behavior changed for good．“None of these was more significant than the introduction of the table fork,” wrote Hitchings．“Gradually，as forks became popular，they brought the new way of eating，making it possible，for instance，to consume berries without making one’s fingers dirty．”

Forks were introduced to Britain in 1608 and 25 years later，the first table fork reached America．Yet while most of the essentials (基本要素) are the same on both sides of the Atlantic，there are a few clear differences between what’s normal in the US and what holds true in the UK．For example，in the US，when food needs cutting with a knife，people generally cut a bite，then lay aside the knife and switch the fork to their right hand．Then they pick up one bite at a time．By contrast，Britons keep the fork in the left hand and don’t lay the knife down．

Though globalization has developed a new，simpler international standard of table manners，some people still stick with the American cut　　　　　　　　 and　　　　　　　　 switch method．The Los Angeles Times noted，“They are hanging on to a form of behavior that favors manners above efficiency．”

1.What does the story mainly talk about？

A．The importance of proper table manners．

B．The development of table manners in Western countries．

C．Some unwritten rules of table manners in the US and UK．

D．Differences between American and British table manners．

2.The underlined phrase “caught on” in the passage probably means ______．

A．worked in practice

B．became popular

C．drew attention

D．had a positive effect

3.Which of the following events influenced people’s table manners most according to the article？

A．The introduction of forks．

B．The tax deduction policy．

C．The rise of the Renaissance．

D．Petrus Alfonsi’s efforts in promoting table manners．

4.What can we conclude from the article？

A．British and American table manners are completely different from each other．

B．American people pay more attention to their table manners than British people do．

C．With globalization，the American cut and switch method has been abandoned in the US．

D．British people’s way of using a knife and fork may be more efficient than American people’s．

高三英语阅读理解中等难度题查看答案及解析

Whether you’re eating at a fancy restaurant or dining in someone’s home，proper table manners are likely to help you make a good impression．According to a US expert，Emily Post，“All rules of table manners are made to avoid ugliness．”

While Henry Hitchings of the Los Angeles Times admits that good manners can reduce social conflict，he points out that mostly their purpose is protective – they turn our natural warrior-like selves into more elegant ones．

So where did table manners come from？

In medieval England，a writer named Petrus Alfonsi took the lead to urge people not to speak with their mouths full．And King David I of Scotland also proposed that any of his people who learned to eat more neatly be given a tax deduction (减除)．

Disappointingly，that idea never caught on．It was during the Renaissance，when there were real technical developments，opinions of correct behavior changed for good．“None of these was more significant than the introduction of the table fork,” wrote Hitchings．“Gradually，as forks became popular，they brought the new way of eating，making it possible，for instance，to consume berries without making one’s fingers dirty．”

Forks were introduced to Britain in 1608 and 25 years later，the first table fork reached America．Yet while most of the essentials (基本要素) are the same on both sides of the Atlantic，there are a few clear differences between what’s normal in the US and what holds true in the UK．For example，in the US，when food needs cutting with a knife，people generally cut a bite，then lay aside the knife and switch the fork to their right hand．Then they pick up one bite at a time．By contrast，Britons keep the fork in the left hand and don’t lay the knife down．

Though globalization has developed a new，simpler international standard of table manners，some people still stick with the American cut-and-switch method．The Los Angeles Times noted，“They are hanging on to a form of behavior that favors manners above efficiency．”

1.What does the story mainly talk about？

A．The importance of proper table manners．

B．The development of table manners in Western countries．

C．Some unwritten rules of table manners in the US and UK．

D．Differences between American and British table manners．

2.The underlined phrase “caught on” in the passage probably means ______．

A．worked in practice

B．became popular

C．drew attention

D．had a positive effect

3.Which of the following events influenced people’s table manners most according to the article？

A．The introduction of forks．

B．The tax deduction policy．

C．The rise of the Renaissance．

D．Petrus Alfonsi’s efforts in promoting table manners．

4.What can we conclude from the article？

A．British and American table manners are completely different from each other．

B．American people pay more attention to their table manners than British people do．

C．With globalization，the American cut-and-switch method has been abandoned in the US．

D．British people’s way of using a knife and fork may be more efficient than American people’s．

高三英语阅读理解中等难度题查看答案及解析

Whether you’re eating at a fancy restaurant or dining in someone’s home. Proper table manners are likely to help you make a good impression. According to a US expert, Emily Post, “All rules of table manners are made to avoid ugliness.”
While Henry Hitchings of the Los Angeles Times admits that good manners can reduce social conflict, he points out that mostly their purpose is protective - they turn our natural warrior-like selves into more elegant ones.
So where did table manners come from?
In medieval England, a writer named Petrus Alfonsi took the lead to urge people not to speak with their mouths full. And King David I of Scotland also proposed that any of his people who learned to eat more neatly be given a tax deduction (减除).
Disappointingly, that idea never caught on. It was during the Renaissance, when there were real technical developments, opinions of correct behavior changed for good. “None of these was more significant than the introduction of the table fork,” wrote Hitchings. “Gradually, as forks became popular, they brought the new way of eating, making it possible, for instance, to consume berries without making one’s fingers dirty.”
Forks were introduced to Britain in 1608 and 25 years later, the first table fork reached America. Yet while most of the essentials (基本要素) are the same on both sides of the Atlantic, there are a few clear differences between what’s normal in the US and what holds true in the UK. For example, in the US, when food needs cutting with a knife, people generally cut a bite, then lay aside the knife and switch the fork to their right hand. Then they pick up one bite at a time. By contrast, Britons keep the fork in the left hand and don’t lay the knife down.
Though globalization has developed a new, simpler international standard of table manners, some people still stick with the American cut-and-switch method.The Los Angeles Times noted, “They are hanging on to a form of behavior that favors manners above efficiency.”
1.What does the story mainly talk about?

A．The importance of proper table manners .

B．The development of table manners in Western countries.

C．Some unwritten rules of table manners in the US and UK.

D．Differences between American and British table manners.

2.The underlined phrase “caught on” in the passage probably means ______.

A．worked in practice　　　　　　　　　 B．became popular

C．drew attention　　　　　　　　　 D．had a positive effect

3.Which of the following events influenced people’s table manners most according to the article?

A．The introduction of forks.

B．The tax deduction policy.

C．The rise of the Renaissance.

D．Petrus Alfonsi’s efforts in promoting table manners.

4.What can we conclude from the article?

A．British and American table manners are completely different from each other.

B．American people pay more attention to their table manners than British people do.

C．With globalization, the American cut-and-switch method has been abandoned in the US.

D．British people’s way of using a knife and fork may be more efficient than American people’s.

高三英语阅读理解简单题查看答案及解析

Whether you’re eating at a fancy restaurant or dining in someone’s home, proper table manners are likely to help you make a good impression. According to a US expert, Emily Post, “All rules of table manners are made to avoid ugliness.”

While Henry Hitchings of the Los Angeles Times admits that good manners can reduce social conflict, he points out that mostly their purpose is protective – they turn our natural warrior-like selves into more elegant ones.

So where did table manners come from?

In medieval England, a writer named Petrus Alfonsi took the lead to urge people not to speak with their mouths full. And King David I of Scotland also proposed that any of his people who learned to eat more neatly be given a tax deduction (减除).

Disappointingly, that idea never caught on. It was during the Renaissance, when there were real technical developments, opinions of correct behavior changed for good. “None of these was more significant than the introduction of the table fork,” wrote Hitchings. “Gradually, as forks became popular, they brought the new way of eating, making it possible, for instance, to consume berries without making one’s fingers dirty.”

Forks were introduced to Britain in 1608 and 25 years later, the first table fork reached America. Yet while most of the essentials (基本要素) are the same on both sides of the Atlantic, there are a few clear differences between what’s normal in the US and what holds true in the UK. For example, in the US, when food needs cutting with a knife, people generally cut a bite, then lay aside the knife and switch the fork to their right hand. Then they pick up one bite at a time. By contrast, Britons keep the fork in the left hand and don’t lay the knife down.

Though globalization has developed a new, simpler international standard of table manners, some people still stick with the American cut-and-switch method.The Los Angeles Times noted, “They are hanging on to a form of behavior that favors manners above efficiency.”

1.What does the story mainly talk about?

A. The importance of proper table manners .

B. The development of table manners in Western countries.

C. Some unwritten rules of table manners in the US and UK.

D. Differences between American and British table manners.

2. The underlined phrase “caught on” in the passage probably means ______.
A. worked in practice 　　　　　　　　 B. became popular

C. drew attention 　　　　　　　　　　　 D. had a positive effect

3.Which of the following events influenced people’s table manners most according to the article?

A. The introduction of forks.

B. The tax deduction policy.

C. The rise of the Renaissance.

D. Petrus Alfonsi’s efforts in promoting table manners.

4.What can we conclude from the article?

A.British and American table manners are completely different from each other.

B.American people pay more attention to their table manners than British people do.

C.With globalization, the American cut-and-switch method has been abandoned in the US.

D.British people’s way of using a knife and fork may be more efficient than American people’s.

高三英语阅读理解中等难度题查看答案及解析

Whether you’re eating at a fancy restaurant or dining in someone’s home，proper table manners are likely to help you make a good impression．According to a US expert，Emily Post，“All rules of table manners are made to avoid ugliness．”

While Henry Hitchings of the Los Angeles Times admits that good manners can reduce social conflict，he points out that mostly their purpose is protective – they turn our natural warrior　　　　 like selves into more elegant ones．

So where did table manners come from？

In medieval England，a writer named Petrus Alfonsi took the lead to urge people not to speak with their mouths full．And King David I of Scotland also proposed that any of his people who learned to eat more neatly be given a tax deduction (减除)．

Disappointingly，that idea never caught on．It was during the Renaissance，when there were real technical developments，opinions of correct behavior changed for good． “None of these was more significant than the introduction of the table fork,” wrote Hitchings．“Gradually，as forks became popular，they brought the new way of eating，making it possible，for instance，to consume berries without making one’s fingers dirty．”

Forks were introduced to Britain in 1608 and 25 years later，the first table fork reached America． Yet while most of the essentials (基本要素) are the same on both sides of the Atlantic，there are a few clear differences between what’s normal in the US and what holds true in the UK．For example，in the US，when food needs cutting with a knife，people generally cut a bite，then lay aside the knife and switch the fork to their right hand． Then they pick up one bite at a time．By contrast，Britons keep the fork in the left hand and don’t lay the knife down．

Though globalization has developed a new，simpler international standard of table manners，some people still stick with the American cut　　　　 and　　　　 switch method． The Los Angeles Times noted，“They are hanging on to a form of behavior that favors manners above efficiency．”

1.What does the story mainly talk about？

A． The importance of proper table manners．

B． The development of table manners in Western countries．

C． Some unwritten rules of table manners in the US and UK．

D． Differences between American and British table manners．

2.The underlined phrase “caught on” in the passage probably means ______．

A． worked in practice

B． became popular

C． drew attention

D． had a positive effect

3.Which of the following events influenced people’s table manners most according to the article？

A． The introduction of forks．

B． The tax deduction policy．

C． The rise of the Renaissance．

D． Petrus Alfonsi’s efforts in promoting table manners．

4.What can we conclude from the article？

A． British and American table manners are completely different from each other．

B． American people pay more attention to their table manners than British people do．

C． With globalization，the American cut　　　　 and　　　　 switch method has been abandoned in the US．

D． British people’s way of using a knife and fork may be more efficient than American people’s．

高三英语阅读理解中等难度题查看答案及解析