问答题In the early 1950s the researchers who produced the first clad glass optical fibers were not thinking of using them for communications. (1) H____, fiber optics was already a well-established commercial technology when the famous paper by Kao and Hockha

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1.Some of the most commonly used medicines for high blood pressure are drugs called ACE inhibitors（抑制剂）.Doctors have given these drugs to patients for twenty-five years.A government study in the United States found that the use almost doubled between 1 995 and 2000.
2.Doctors have known for years that women should not take ACE inhibitors during the last six months of pregnancy（怀孕）.The medicine can injure the bahy.ACE inhibitors,though,have been considered safe when taken during the first three months.But a new study has found that women who take these drugs early in their pregnancy still increase the risk of hirth disorders（先天性疾病）.Thestudyshowsthat,comparedtoothers,theirbabieswerealmostthreetimesaslikely to be horn with major problems.These included problems with thefo朋ation of the brain and nervous system and holes in the heart.
3.The researchers say they found no increased risk in women who took other blood pressure medicines during the first three months.Researchers at Vanderbilt University in Tennessee and Boston University did the study. The New England Journal of Medicine published the results.The researchers studied the records of almost thirty thousand births between 1985 and 2000.Two hundred nine babies were born to women who took ACE inhibitors during the first three months of their pregnancies.Eighteen of the babies,or almost nine percent,had major disorders.
4.ACE inhibitors are often given to patients with diabetes（糖尿病）.But diabetes during pregnancy can result in birth defects（先天性缺陷）.So the study did not include any women known to be diabetic. ACE inhibitors suppress a protein called angiotensin-converting enzyme（血管紧张素转化酶）,or ACE. This enzyme produces a chemical in the body that makes blood passages narrow. The drugs increase the flow of blood,so pressure is reduced.
5.New drugs are tested on pregnant animals to see if they might cause birth defects in humans. But experts say these tests are not always dependable.The United States Food and Drug Administration helped pay for the study.The FDA says women who might become pregnant should talk with their doctor about other ways to treat high blood pressure.

Paragraph 4__________
A:Effects of ACE and ACE inhibitors
B:Wide use of ACE inhibitors
C:How to deal with high blood pressure in pregnant women
D:Damage to pregnant women's future babies
E:Suggestions on stopping the use of ACE inhibitors
F: Relative safety for women during the first three months of pregnancies

Who is that man，in the front row?

A.one
B.the one
C.first
D.the first

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The Beginning of American Literature America has always been a land of beginnings.After Europeans"discovered"America in the fifteenth century,the mysterious New World became for many people a genuine hope of a new life,an escape from poverty and persecution,a chance to start again.We can say that,as a nation,America begins with that hope.When,however,does American literature begin?
American literature begins with American experiences.Long before the first colonists arrived,before Christopher Columbus,before the Northmen who"found"America about the year 1000,native Americans lived here.Each tribe's literature was tightly woven into the fabric of daily life and reflected the unmistakably American experience of linking with the land.Another kind of experience,one filled with fear and excitement,found its expression in the reports that Columbus and other explorers sent home in Spain, French and English.In addition,the journals of the people who lived and died in the New England wilder- ness tell unforgettable tales of hard and sometimes heartbreaking experiences of those early years. Experience,then, is the key to early American literature.
The New World provided a great variety of experiences,and these experiences demanded a wide variety of expressions by an even wider variety of early American writers.These writers included John Smith,who spent only two-and-a-half year on the American continent.
They included Jonathan Edwards and William Byrd,who thought of themselves as British subjects,never suspecting a revolution that would create a United States of America with a literature of its own.American Indians,explorers,Puritan ministers,frontier wives,plantation owners-they are all the creators of the first American literature.

What does"that hope"in the first paragraph refer to?
A:The hope that America would be discovered.
B:The hope to start a new life.
C:The hope to see the mysteries of the New Worid.
D:The hope to find poverty here.

共用题干
Kicking the Habit

What is a bad habit?The most common definition is that it is something that we do regularly,almost
without thinking about it,and which has some sort of negative consequence.This consequence could affect
those around us,or it could affect us personally.Those who deny having bad habits are probably lying. Bad
habits are part of what makes us human.
Many early habits,like sucking our thumb,are broken when we are very young.We are either told to
stop doing it by our parents,or we consciously or subconsciously observe that others do not have the same
habit,and we gradually grow out of it.It is when we intentionally or unintentionally pick up new habits in
our later childhood or early adulthood that it becomes a problem.Unless we can break that habit early on,it
becomes a part of our life,and becomes"programmed"into our brain.
A recent study of human memory suggests that no matter how hard we try to change our habits,it is the
old ways that tend to win,especially in situations where we are rushed,stressed or overworked.Habits that
we thought we had got rid of can suddenly come back.During the study programme,the researchers showed
a group of volunteers several pictures,and gave them words to associate with them.They then showed the
volunteers the same pictures again,and gave them new words to associate with them.
A few days later,the volunteers were given a test.The researchers showed them the pictures,and told
them to respond with one of the words they had been given for each one.It came as no surprise that their an-
swers were split between the first set of words and the second.Two weeks later,they were given the same test

again.This time,most of them only gave the first set of. words.They appeared to have completely forgotten
the second set.
The study confirms that the responses we learn first are those that remain strongest over time.We may
try to change our ways,hut after a while,the response that comes to mind first is usually the first one we
learned.The more that response is used,the more automatic it becomes and the harder it becomes to respond
in any other way.
The study therefore suggests that over time,our had habits also become automatic,learned behavior.
This is not good news for people who picked up bad habits early in life and now want to change or break
them.Even when we try to put new,good intentions into practice,those previously learned habits remain
stronger in more automatic,unconscious forms of memory.

We can only break bad habits if others tell us to do so.
A:Right
B:Wrong
C:Not nientioned

共用题干
Kicking the Habit

What is a bad habit?The most common definition is that it is something that we do regularly,almost
without thinking about it,and which has some sort of negative consequence.This consequence could affect
those around us,or it could affect us personally.Those who deny having bad habits are probably lying. Bad
habits are part of what makes us human.
Many early habits,like sucking our thumb,are broken when we are very young.We are either told to
stop doing it by our parents,or we consciously or subconsciously observe that others do not have the same
habit,and we gradually grow out of it.It is when we intentionally or unintentionally pick up new habits in
our later childhood or early adulthood that it becomes a problem.Unless we can break that habit early on,it
becomes a part of our life,and becomes"programmed"into our brain.
A recent study of human memory suggests that no matter how hard we try to change our habits,it is the
old ways that tend to win,especially in situations where we are rushed,stressed or overworked.Habits that
we thought we had got rid of can suddenly come back.During the study programme,the researchers showed
a group of volunteers several pictures,and gave them words to associate with them.They then showed the
volunteers the same pictures again,and gave them new words to associate with them.
A few days later,the volunteers were given a test.The researchers showed them the pictures,and told
them to respond with one of the words they had been given for each one.It came as no surprise that their an-
swers were split between the first set of words and the second.Two weeks later,they were given the same test

again.This time,most of them only gave the first set of. words.They appeared to have completely forgotten
the second set.
The study confirms that the responses we learn first are those that remain strongest over time.We may
try to change our ways,hut after a while,the response that comes to mind first is usually the first one we
learned.The more that response is used,the more automatic it becomes and the harder it becomes to respond
in any other way.
The study therefore suggests that over time,our had habits also become automatic,learned behavior.
This is not good news for people who picked up bad habits early in life and now want to change or break
them.Even when we try to put new,good intentions into practice,those previously learned habits remain
stronger in more automatic,unconscious forms of memory.

If we develop bad habits early in life,they are harder to get rid of.
A:Right
B:Wrong
C:Not mentioned

共用题干
The Beginning of American Literature America has always been a land of beginnings.After Europeans"discovered"America in the fifteenth century,the mysterious New World became for many people a genuine hope of a new life,an escape from poverty and persecution,a chance to start again.We can say that,as a nation,America begins with that hope.When,however,does American literature begin?
American literature begins with American experiences.Long before the first colonists arrived,before Christopher Columbus,before the Northmen who"found"America about the year 1000,native Americans lived here.Each tribe's literature was tightly woven into the fabric of daily life and reflected the unmistakably American experience of linking with the land.Another kind of experience,one filled with fear and excitement,found its expression in the reports that Columbus and other explorers sent home in Spain, French and English.In addition,the journals of the people who lived and died in the New England wilder- ness tell unforgettable tales of hard and sometimes heartbreaking experiences of those early years. Experience,then, is the key to early American literature.
The New World provided a great variety of experiences,and these experiences demanded a wide variety of expressions by an even wider variety of early American writers.These writers included John Smith,who spent only two-and-a-half year on the American continent.
They included Jonathan Edwards and William Byrd,who thought of themselves as British subjects,never suspecting a revolution that would create a United States of America with a literature of its own.American Indians,explorers,Puritan ministers,frontier wives,plantation owners-they are all the creators of the first American literature.

The main purpose of the last paragraph is to tell the readers that______.
A:in the early days most American writers were from Great Britain
B:people with rich life experience became writers
C:there were many writers in the early days of American history
D:early-day experience provided the foundation for American literature

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第三篇

Scientists Make Sweet Discovery

Good news for chocoholics:the treat preferred by millions all over the world is good for you,according
to American researchers at the University of California. Chocolate contains substances called flavonoids（类黄
酮)that can help maintain a healthy heart and good circulation.The researchers have discovered that cocoa
acts like aspirin and that eating a bar of chocolate once in a while may contribute to a healthy diet. Chocolate
has also been shown to release endorphins（内啡肽) in the body: these chemicals help to reduce pain and
stress and make you feel happy.
But who first discovered this wonderful way of keeping healthy?The Olmec Indians of Mexico and Central
America were the first to grow cocoa beans,in about 1500 BC,and the Mayas were drinking unsweetened
cocoa hundreds of years before it became fashionable in Europe.The word chocolate comes from the Nahuatl
word xocolati,which means"bitter water".
In 1544,a delegation of Mayan nobles visited Philip of Spain and gave him jars of cocoa as a gift. Cocoa
soon became fashionable in Spain and Portugal.The Spanish were the first to add sugar to their cocoa drink.
In the 17th century,chocolate was becoming fashionable with the middle-classes,not only as a drink but also
as a medicine.
By the middle of the century,solid chocolate was becoming familiar. In 1753,a Swedish scientist re-
named cocoa theobroma or" food for the gods".In 1765,James Baker and John Hanan opened the first choco-
late mill in the United States,introducing chocolate to the average citizen.In 1876,in Switzerland,Daniel
Peter had the idea of adding milk in the chocolate,making process and produced the first milk chocolate.
Since then,chocolate has grown enormously in popularity. One of the biggest chocolate-eating nations is
Britain where the average man,woman,and child eats nine kilos of chocolate a year!In fact,chocolate is the
number one comfort food and there are more"chocoholics"in Britain than anywhere else in the world.Re-
searchers warn that although chocolate is good for you,it should be eaten in small quantities and with no
added milk.

What did James Baker and John Hanan do about chocolate?
A:They produced the first milk chocolate.
B:They introduced chocolate to Europe.
C:They added sugar to make chocolate bars.
D:They made chocolate accessible to the average man.

The first IC’s were made____the early 1960’s.

A.in
B.from
C.for
D.of

共用题干
Kicking the Habit

What is a bad habit?The most common definition is that it is something that we do regularly,almost
without thinking about it,and which has some sort of negative consequence.This consequence could affect
those around us,or it could affect us personally.Those who deny having bad habits are probably lying. Bad
habits are part of what makes us human.
Many early habits,like sucking our thumb,are broken when we are very young.We are either told to
stop doing it by our parents,or we consciously or subconsciously observe that others do not have the same
habit,and we gradually grow out of it.It is when we intentionally or unintentionally pick up new habits in
our later childhood or early adulthood that it becomes a problem.Unless we can break that habit early on,it
becomes a part of our life,and becomes"programmed"into our brain.
A recent study of human memory suggests that no matter how hard we try to change our habits,it is the
old ways that tend to win,especially in situations where we are rushed,stressed or overworked.Habits that
we thought we had got rid of can suddenly come back.During the study programme,the researchers showed
a group of volunteers several pictures,and gave them words to associate with them.They then showed the
volunteers the same pictures again,and gave them new words to associate with them.
A few days later,the volunteers were given a test.The researchers showed them the pictures,and told
them to respond with one of the words they had been given for each one.It came as no surprise that their an-
swers were split between the first set of words and the second.Two weeks later,they were given the same test

again.This time,most of them only gave the first set of. words.They appeared to have completely forgotten
the second set.
The study confirms that the responses we learn first are those that remain strongest over time.We may
try to change our ways,hut after a while,the response that comes to mind first is usually the first one we
learned.The more that response is used,the more automatic it becomes and the harder it becomes to respond
in any other way.
The study therefore suggests that over time,our had habits also become automatic,learned behavior.
This is not good news for people who picked up bad habits early in life and now want to change or break
them.Even when we try to put new,good intentions into practice,those previously learned habits remain
stronger in more automatic,unconscious forms of memory.

The study suggests that it is more difficult to respond to what we learn first?
A:Right
B:Wrong
C:Not mentioned

共用题干
The Beginning of American Literature America has always been a land of beginnings.After Europeans"discovered"America in the fifteenth century,the mysterious New World became for many people a genuine hope of a new life,an escape from poverty and persecution,a chance to start again.We can say that,as a nation,America begins with that hope.When,however,does American literature begin?
American literature begins with American experiences.Long before the first colonists arrived,before Christopher Columbus,before the Northmen who"found"America about the year 1000,native Americans lived here.Each tribe's literature was tightly woven into the fabric of daily life and reflected the unmistakably American experience of linking with the land.Another kind of experience,one filled with fear and excitement,found its expression in the reports that Columbus and other explorers sent home in Spain, French and English.In addition,the journals of the people who lived and died in the New England wilder- ness tell unforgettable tales of hard and sometimes heartbreaking experiences of those early years. Experience,then, is the key to early American literature.
The New World provided a great variety of experiences,and these experiences demanded a wide variety of expressions by an even wider variety of early American writers.These writers included John Smith,who spent only two-and-a-half year on the American continent.
They included Jonathan Edwards and William Byrd,who thought of themselves as British subjects,never suspecting a revolution that would create a United States of America with a literature of its own.American Indians,explorers,Puritan ministers,frontier wives,plantation owners-they are all the creators of the first American literature.

What can we learn from the literature of the tribes of the native Americans?
A:About the everyday life of the native Americans.
B:About the arrival of Columbus.
C:About the experience of the first European settlers.
D:About the experience of those who died in the New England wilderness.

共用题干
Kicking the Habit

What is a bad habit?The most common definition is that it is something that we do regularly,almost
without thinking about it,and which has some sort of negative consequence.This consequence could affect
those around us,or it could affect us personally.Those who deny having bad habits are probably lying. Bad
habits are part of what makes us human.
Many early habits,like sucking our thumb,are broken when we are very young.We are either told to
stop doing it by our parents,or we consciously or subconsciously observe that others do not have the same
habit,and we gradually grow out of it.It is when we intentionally or unintentionally pick up new habits in
our later childhood or early adulthood that it becomes a problem.Unless we can break that habit early on,it
becomes a part of our life,and becomes"programmed"into our brain.
A recent study of human memory suggests that no matter how hard we try to change our habits,it is the
old ways that tend to win,especially in situations where we are rushed,stressed or overworked.Habits that
we thought we had got rid of can suddenly come back.During the study programme,the researchers showed
a group of volunteers several pictures,and gave them words to associate with them.They then showed the
volunteers the same pictures again,and gave them new words to associate with them.
A few days later,the volunteers were given a test.The researchers showed them the pictures,and told
them to respond with one of the words they had been given for each one.It came as no surprise that their an-
swers were split between the first set of words and the second.Two weeks later,they were given the same test

again.This time,most of them only gave the first set of. words.They appeared to have completely forgotten
the second set.
The study confirms that the responses we learn first are those that remain strongest over time.We may
try to change our ways,hut after a while,the response that comes to mind first is usually the first one we
learned.The more that response is used,the more automatic it becomes and the harder it becomes to respond
in any other way.
The study therefore suggests that over time,our had habits also become automatic,learned behavior.
This is not good news for people who picked up bad habits early in life and now want to change or break
them.Even when we try to put new,good intentions into practice,those previously learned habits remain
stronger in more automatic,unconscious forms of memory.

Researchers were surprised by the answers that the volunteers gave in the first test.
A:Right
B:Wrong
C:Not mentioned