单选题In the US, there is a long waiting list for organs because ______.A there is a shortage of actual organsB only a few people become organ donorsC doctors have set a limit to the number of organ recipientsD transplant surgery is still experimental

共用题干
Organ Donation and Transplantation

1 Organ donation（捐献）and transplantation（移植）refers to the process by which organs or tissues
from one person are put into another person's body.
2 The number of people needing a transplant continues to rise faster than the number of donors.About
3,700 transplant candidates are added to the national waiting list each month.Each day,about 77 people
receive organ transplants.However,18 people die each day waiting for transplants that can't take place
because of the shortage of donated organs.
3 There are rio age limits on who can donate.Newborns as well as senior citizens have been organ
donors. If you are under age 18 , you must have a parent's or guardian's consent（同意）.If you are 18 years or
older,you can show you want to be an organ and tissue donor by signing a donor card.
4 Many people think that if they agree to donate their organs,the doctor or the emergency room staff
won't work as hard to save their life.This is not true.The transplant team is completely separate from the
medical staff working to save your life.The transplant team does not become involved with you until doctors
have determined that all possible efforts to save your life have failed.
5 If you need an organ transplant,your doctor will help you get on the national waiting list.Your name
will be added to a pool of names.When an organ donor becomes available,all the patients in the pool are
compared to that donor. Factors such as blood and tissue type, size of the organ, medical urgency（紧急）of
the patient's illness , time already spent on the waiting list, and distance between donor and recipient（接受
者）are considered.

Paragraph 5 _________
A: Quality of Donated Organs
B: Benefits of Organ Donation
C:Distribution of Donated Organs
D:Quality of Donor Medical Care
E:Age Limits for Organ Donation
F:Status of Organ Donation and Transplantation

共用题干
Organ Donation and Transplantation

1 Organ donation（捐献）and transplantation（移植）refers to the process by which organs or tissues
from one person are put into another person's body.
2 The number of people needing a transplant continues to rise faster than the number of donors.About
3,700 transplant candidates are added to the national waiting list each month.Each day,about 77 people
receive organ transplants.However,18 people die each day waiting for transplants that can't take place
because of the shortage of donated organs.
3 There are rio age limits on who can donate.Newborns as well as senior citizens have been organ
donors. If you are under age 18 , you must have a parent's or guardian's consent（同意）.If you are 18 years or
older,you can show you want to be an organ and tissue donor by signing a donor card.
4 Many people think that if they agree to donate their organs,the doctor or the emergency room staff
won't work as hard to save their life.This is not true.The transplant team is completely separate from the
medical staff working to save your life.The transplant team does not become involved with you until doctors
have determined that all possible efforts to save your life have failed.
5 If you need an organ transplant,your doctor will help you get on the national waiting list.Your name
will be added to a pool of names.When an organ donor becomes available,all the patients in the pool are
compared to that donor. Factors such as blood and tissue type, size of the organ, medical urgency（紧急）of
the patient's illness , time already spent on the waiting list, and distance between donor and recipient（接受
者）are considered.

Doctors will try their best to save your life even if you've signed________.
A:donated organs
B:the national waiting list
C:a donor card
D:senior citizens
E:all possible efforts
F:the most suitable candidate

共用题干
Natural Medicines
Since earliest days,humans have used some kinds of medicines.We know this because hu-mans have survived .Ancient treatments for injury and disease were successful enough to keep hu-mans from dying out completely.
They were successful long before the time of modern medicine.Before the time of doctors with white coats and shiny（发亮的）instruments. Before the time of big hospitals with strange and wonderful equipment.
Many parts of the world still do not have university-educated doctors.Nor do they have ex- pensive hospitals.Yet injuries are treated.And diseases are often cured.How?By ancient meth- ods. By medicines that might seem mysterious, even magical（有魔力的）.Traditional medicines are neither mysterious nor magical,however.
Through the centuries, tribal（部落的）medicine men experimented with plants. They found many useful chemicals in the plants.And scientists believe many of these traditional medicines may provide the cure for some of today's most serious diseases.
Experts say almost 80%of the people in the world use plants for health care.These natural medicines are used not just because people have no other form of treatment.They are used be-cause people trust them.In developed areas,few people think about the source of the medicines they buy in a store.Yet many widely-used medicines are from ancient sources,especially plants. Some experts say more than 25%of modern medicines come,in one way or another,from nature.
Scientists have long known that nature is really a chemical factory.All living things contain chemicals that help them survive .So scientists' interest in traditional medicine is not new.But it has become an urgent concern.This is because the earth's supply of natural medicines may be dropping rapidly.

It is believed by scientists that traditional medicines______.
A:cancureallkindsofdiseases
B: maycuresomeoftoday,smostseriousdiseases
C: arenolongerusefulformodernmen
D: aretoocheaptoheuseful

共用题干
Natural Medicines
Since earliest days,humans have used some kinds of medicines.We know this because humans have survived.Ancient treatments for injury and disease were successful enough to keep humans from dying out completely.
They were successful long before the time of modern medicine. Before the time of doctors with white coats and shiny（发亮的）instruments. Before the time of big hospitals with strange and wonderful equipment.
Many parts of the world still do not have university-educated doctors. Nor do they have expensive hospitals.Yet injuries are treated.And diseases are often cured.How?By ancient methods. By medicines that might seem mysterious , even magical（有魔力的）.Traditional medicines are neither mysterious nor magical,however.
Through the centuries , tribal（部落的）medicine men experimented with plants. They found
many useful chemicals in the plants.And scientists believe many of these traditional medicines
may provide the cure for some of today's most serious diseases.
Experts say almost 80% of the people in the world use plants for health care.These natural medicines are used not just because people have no other form of treatment. They are used because people trust them. In developed areas,few people think about the source of the medicines they buy in a store .Yet many widely-used medicines are from ancient sources,especially plants.
Some experts say more than 25%of modem medicines come,in one way or another,from nature.
Scientists have long known that nature is really a chemical factory. All living things contain chemicals that help them survive .So scientists' interest in traditional medicine is not new.But it has become an urgent concern.This is because the earth's supply of natural medicines may be dropping rapidly.

It is believed by scientists that traditional medicines______.
A: can cure all kinds of diseases
B: may cure some of today's most serious diseases
C: are no longer useful for modern men
D: are too cheap to be useful

共用题干
Natural Medicines
Since earliest days,humans have used some kinds of medicines.We know this because humans have survived.Ancient treatments for injury and disease were successful enough to keep humans from dying out completely.
They were successful long before the time of modern medicine. Before the time of doctors with white coats and shiny（发亮的）instruments. Before the time of big hospitals with strange and wonderful equipment.
Many parts of the world still do not have university-educated doctors. Nor do they have expensive hospitals.Yet injuries are treated.And diseases are often cured.How?By ancient methods. By medicines that might seem mysterious , even magical（有魔力的）.Traditional medicines are neither mysterious nor magical,however.
Through the centuries , tribal（部落的）medicine men experimented with plants. They found
many useful chemicals in the plants.And scientists believe many of these traditional medicines
may provide the cure for some of today's most serious diseases.
Experts say almost 80% of the people in the world use plants for health care.These natural medicines are used not just because people have no other form of treatment. They are used because people trust them. In developed areas,few people think about the source of the medicines they buy in a store .Yet many widely-used medicines are from ancient sources,especially plants.
Some experts say more than 25%of modem medicines come,in one way or another,from nature.
Scientists have long known that nature is really a chemical factory. All living things contain chemicals that help them survive .So scientists' interest in traditional medicine is not new.But it has become an urgent concern.This is because the earth's supply of natural medicines may be dropping rapidly.

What do the majority of the people in the world use for health care?
A: Strange and wonderful equipment.
B: Factory-produced chemicals.
C: Modern medicines.
D: Plants.

共用题干
The Need to Remember
Some people say they have no memory at all:"I just can't remember a thing!"But of course we all have a memory.Our memory tells us who we are.Our memory helps us to make use in the present of what we have learnt in the past.
In fact we have different types of memory.For example,our visual memory helps us recall facts and places.Some people have such a strong visual memory that they can remember exactly what they have seen,for example,pages of a book,as a complete picture.
Our verbal（言语的）memory helps us remember words and figures we may have heard but not seen or written:Items of a shopping list,a chemical formula,dates,or a recipe.
With our emotional（情感的）memory, we recall situations or places where we had; strong feelings,perhaps of happiness or unhappiness. We also have special memories for smell,taste, touch and sound,and for performing physical movements.
We have two ways of storing any of these memories. Our short-term memory stores items for up to thirty seconds-enough to remember a telephone number while we dial.Our long-term mem-ory,on the other hand,may store items for a lifetime. Older people in fact have a much biter long-term memory than short-term .They may forget what they have done only a few hours ago,but have the clearest remembrance（记忆）of when they were very young.
Psychologists tell us that we only remember a few facts about our past,and that we invent the rest. It is as though we remember only the outline of a story.We then make up the details. We of-ten do this in the way we want to remember them,usually so that we appear as the heroes of our own past , or maybe victims needing sympathy（同情）.

Animals do not have a long-term memory.
A: Right
B: Wrong
C: Not mentioned

共用题干
The Need to Remember
Some people say they have no memory at all:"I just can't remember a thing!"But of course we all have a memory.Our memory tells us who we are.Our memory helps us to make use in the present of what we have learnt in the past.
In fact we have different types of memory.For example,our visual memory helps us recall facts and places.Some people have such a strong visual memory that they can remember exactly what they have seen,for example,pages of a book,as a complete picture.
Our verbal（言语的）memory helps us remember words and figures we may have heard but not seen or written:Items of a shopping list,a chemical formula,dates,or a recipe.
With our emotional（情感的）memory, we recall situations or places where we had; strong feelings,perhaps of happiness or unhappiness. We also have special memories for smell,taste, touch and sound,and for performing physical movements.
We have two ways of storing any of these memories. Our short-term memory stores items for up to thirty seconds-enough to remember a telephone number while we dial.Our long-term mem-ory,on the other hand,may store items for a lifetime. Older people in fact have a much biter long-term memory than short-term .They may forget what they have done only a few hours ago,but have the clearest remembrance（记忆）of when they were very young.
Psychologists tell us that we only remember a few facts about our past,and that we invent the rest. It is as though we remember only the outline of a story.We then make up the details. We of-ten do this in the way we want to remember them,usually so that we appear as the heroes of our own past , or maybe victims needing sympathy（同情）.

Generally we remember only a few facts about the past.
A: Right
B: Wrong
C: Not mentioned

共用题干
Organ Donation and Transplantation

1 Organ donation（捐献）and transplantation（移植）refers to the process by which organs or tissues
from one person are put into another person's body.
2 The number of people needing a transplant continues to rise faster than the number of donors.About
3,700 transplant candidates are added to the national waiting list each month.Each day,about 77 people
receive organ transplants.However,18 people die each day waiting for transplants that can't take place
because of the shortage of donated organs.
3 There are rio age limits on who can donate.Newborns as well as senior citizens have been organ
donors. If you are under age 18 , you must have a parent's or guardian's consent（同意）.If you are 18 years or
older,you can show you want to be an organ and tissue donor by signing a donor card.
4 Many people think that if they agree to donate their organs,the doctor or the emergency room staff
won't work as hard to save their life.This is not true.The transplant team is completely separate from the
medical staff working to save your life.The transplant team does not become involved with you until doctors
have determined that all possible efforts to save your life have failed.
5 If you need an organ transplant,your doctor will help you get on the national waiting list.Your name
will be added to a pool of names.When an organ donor becomes available,all the patients in the pool are
compared to that donor. Factors such as blood and tissue type, size of the organ, medical urgency（紧急）of
the patient's illness , time already spent on the waiting list, and distance between donor and recipient（接受
者）are considered.

Organ donors range in age from newborns to________.
A:donated organs
B:the national waiting list
C:a donor card
D:senior citizens
E:all possible efforts
F:the most suitable candidate

共用题干
Organ Donation and Transplantation

1 Organ donation（捐献）and transplantation（移植）refers to the process by which organs or tissues
from one person are put into another person's body.
2 The number of people needing a transplant continues to rise faster than the number of donors.About
3,700 transplant candidates are added to the national waiting list each month.Each day,about 77 people
receive organ transplants.However,18 people die each day waiting for transplants that can't take place
because of the shortage of donated organs.
3 There are rio age limits on who can donate.Newborns as well as senior citizens have been organ
donors. If you are under age 18 , you must have a parent's or guardian's consent（同意）.If you are 18 years or
older,you can show you want to be an organ and tissue donor by signing a donor card.
4 Many people think that if they agree to donate their organs,the doctor or the emergency room staff
won't work as hard to save their life.This is not true.The transplant team is completely separate from the
medical staff working to save your life.The transplant team does not become involved with you until doctors
have determined that all possible efforts to save your life have failed.
5 If you need an organ transplant,your doctor will help you get on the national waiting list.Your name
will be added to a pool of names.When an organ donor becomes available,all the patients in the pool are
compared to that donor. Factors such as blood and tissue type, size of the organ, medical urgency（紧急）of
the patient's illness , time already spent on the waiting list, and distance between donor and recipient（接受
者）are considered.

Various factors are considered when deciding on_________.
A:donated organs
B:the national waiting list
C:a donor card
D:senior citizens
E:all possible efforts
F:the most suitable candidate

A transplant operation is successful only if doctors can prevent the body from rejecting the ____organ.

A. borrowed
B. strange
C. novel
D. foreign

资料：When we see well，we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how important our eyes are.
People who are near-sighted can only see things that are very close to their eyes，Everything else seems blurry（=unclear）.Many people who do a lot of work，such as writing，reading and sewing become near-sighted.
People who are far-sighted suffer from just the opposite problem. They can see things that are far away，but they have difficulty in reading a book unless they hold it at arm’s length. If they want to do much reading，they must get glasses，too.
Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism. This，too，can be corrected by glasses. Some people’s eyes become cloudy because of cataracts. Long ago these people often became blind. Now，however，it is possible to operate on the cataracts and remove them.
Having two good eyes is important for judging distances. Each eye sees things from a slightly different angle. To prove this to yourself，look at an object out of one eye；Then look at the same object out of your other eye. You will find the object’s relation to the background and other things around it has changed. The difference between these two different eye views helps us to judge how far away an object is. People who have only one eye cannot judge distance as people with two eyes.

We should take good care of our eyes______.

A.even if we can see well
B.only when we cannot see perfectly
C.only when we realize how important our eyes are
D.only when we can see well

共用题干
Natural Medicines
Since earliest days,humans have used some kinds of medicines.We know this because humans have survived.Ancient treatments for injury and disease were successful enough to keep humans from dying out completely.
They were successful long before the time of modern medicine. Before the time of doctors with white coats and shiny（发亮的）instruments. Before the time of big hospitals with strange and wonderful equipment.
Many parts of the world still do not have university-educated doctors. Nor do they have expensive hospitals.Yet injuries are treated.And diseases are often cured.How?By ancient methods. By medicines that might seem mysterious , even magical（有魔力的）.Traditional medicines are neither mysterious nor magical,however.
Through the centuries , tribal（部落的）medicine men experimented with plants. They found
many useful chemicals in the plants.And scientists believe many of these traditional medicines
may provide the cure for some of today's most serious diseases.
Experts say almost 80% of the people in the world use plants for health care.These natural medicines are used not just because people have no other form of treatment. They are used because people trust them. In developed areas,few people think about the source of the medicines they buy in a store .Yet many widely-used medicines are from ancient sources,especially plants.
Some experts say more than 25%of modem medicines come,in one way or another,from nature.
Scientists have long known that nature is really a chemical factory. All living things contain chemicals that help them survive .So scientists' interest in traditional medicine is not new.But it has become an urgent concern.This is because the earth's supply of natural medicines may be dropping rapidly.

It can be seen from the passage that the earth's supply of natural medicines______.
A: may never be exhausted
B: may be dropping rapidly
C: is surprisingly big
D: is as rich as ever

共用题干
The Need to Remember
Some people say they have no memory at all:"I just can't remember a thing!"But of course we all have a memory.Our memory tells us who we are.Our memory helps us to make use in the present of what we have learnt in the past.
In fact we have different types of memory.For example,our visual memory helps us recall facts and places.Some people have such a strong visual memory that they can remember exactly what they have seen,for example,pages of a book,as a complete picture.
Our verbal（言语的）memory helps us remember words and figures we may have heard but not seen or written:Items of a shopping list,a chemical formula,dates,or a recipe.
With our emotional（情感的）memory, we recall situations or places where we had; strong feelings,perhaps of happiness or unhappiness. We also have special memories for smell,taste, touch and sound,and for performing physical movements.
We have two ways of storing any of these memories. Our short-term memory stores items for up to thirty seconds-enough to remember a telephone number while we dial.Our long-term mem-ory,on the other hand,may store items for a lifetime. Older people in fact have a much biter long-term memory than short-term .They may forget what they have done only a few hours ago,but have the clearest remembrance（记忆）of when they were very young.
Psychologists tell us that we only remember a few facts about our past,and that we invent the rest. It is as though we remember only the outline of a story.We then make up the details. We of-ten do this in the way we want to remember them,usually so that we appear as the heroes of our own past , or maybe victims needing sympathy（同情）.

Visual memory helps us recall a place we have been to.
A: Right
B: Wrong
C: Not mentioned

共用题干
The Need to Remember
Some people say they have no memory at all:"I just can't remember a thing!"But of course we all have a memory.Our memory tells us who we are.Our memory helps us to make use in the present of what we have learnt in the past.
In fact we have different types of memory.For example,our visual memory helps us recall facts and places.Some people have such a strong visual memory that they can remember exactly what they have seen,for example,pages of a book,as a complete picture.
Our verbal（言语的）memory helps us remember words and figures we may have heard but not seen or written:Items of a shopping list,a chemical formula,dates,or a recipe.
With our emotional（情感的）memory, we recall situations or places where we had; strong feelings,perhaps of happiness or unhappiness. We also have special memories for smell,taste, touch and sound,and for performing physical movements.
We have two ways of storing any of these memories. Our short-term memory stores items for up to thirty seconds-enough to remember a telephone number while we dial.Our long-term mem-ory,on the other hand,may store items for a lifetime. Older people in fact have a much biter long-term memory than short-term .They may forget what they have done only a few hours ago,but have the clearest remembrance（记忆）of when they were very young.
Psychologists tell us that we only remember a few facts about our past,and that we invent the rest. It is as though we remember only the outline of a story.We then make up the details. We of-ten do this in the way we want to remember them,usually so that we appear as the heroes of our own past , or maybe victims needing sympathy（同情）.

Visual memory may be used when we read a story.
A: Right
B: Wrong
C: Not mentioned

共用题干
The Need to Remember
Some people say they have no memory at all:"I just can't remember a thing!"But of course we all have a memory.Our memory tells us who we are.Our memory helps us to make use in the present of what we have learnt in the past.
In fact we have different types of memory.For example,our visual memory helps us recall facts and places.Some people have such a strong visual memory that they can remember exactly what they have seen,for example,pages of a book,as a complete picture.
Our verbal（言语的）memory helps us remember words and figures we may have heard but not seen or written:Items of a shopping list,a chemical formula,dates,or a recipe.
With our emotional（情感的）memory, we recall situations or places where we had; strong feelings,perhaps of happiness or unhappiness. We also have special memories for smell,taste, touch and sound,and for performing physical movements.
We have two ways of storing any of these memories. Our short-term memory stores items for up to thirty seconds-enough to remember a telephone number while we dial.Our long-term mem-ory,on the other hand,may store items for a lifetime. Older people in fact have a much biter long-term memory than short-term .They may forget what they have done only a few hours ago,but have the clearest remembrance（记忆）of when they were very young.
Psychologists tell us that we only remember a few facts about our past,and that we invent the rest. It is as though we remember only the outline of a story.We then make up the details. We of-ten do this in the way we want to remember them,usually so that we appear as the heroes of our own past , or maybe victims needing sympathy（同情）.

Long-term memory is more important than short-term memory.
A: Right
B: Wrong
C: Not mentioned