British and American scientists are raising genetically modified(转基因的) pigs in t

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British and American scientists are raising genetically modified(转基因的) pigs in the hope of providing organs for transplant(移植) to humans, the project leader wrote in a newspaper Sunday.
Scientists in London and California have begun conducting the genetic experiments to find a solution to record–long waiting lists for organ transplants, Robert Winston said in an opinion piece written for Britain"s Sunday Times.
In Britain alone, around 8,000 patients are waiting for a transplant.
"People needing a new heart or liver are waiting for someone else to die – usually a violent death in a traffic accident," Winston wrote in the newspaper. He said his team was "trying to modify pigs so their organs might save the lives of humans."
The scientists are introducing human genes into the animals to reduce the chances of the organs being rejected by patients, as has been common in previous attempts to use animal tissues, said Winston, who heads the Institute of Reproductive and Developmental Biology at London"s Hammersmith Hospital.
Working with Dr. Carol Redhead of the California Institute of Technology, Winston"s team has injected human genes directly into male piglets(猪仔), adding them to the animal"s sperm(精子).
He said that pigs involved in experiments had successfully produced transgenic sperm, but acknowledged that British and European laws had prevented the team from using the pigs to mate.
The Sunday Times newspaper reported that the experiments would be moved to the United States following difficulties with funding and regulations in Britain. It said the pigs would be bred in Missouri.
"Our U.S. friends will benefit from our technology and the income we might have produced for Britain will be lost," Winston wrote.
Some scientists have previously blamed the idea of using animal organs for human transplant, saying the technique risks spreading animal viruses to humans. Winston said his research project is attempting to breed virus-free pigs.
49. Scientists are introducing human genes into the animals to ____________.

A. make the organs healthier	B. reduce the pain of animals
C. make the organs live longer	D. reduce the chances of rejection

50. Some scientists have blamed the idea of using animal organs for human transplant because ____________.

A. the technique is not perfect now

B. humans may be infected with animal viruses

C. it is against laws and regulations

D. it may cause a conflict between humans and animals

51. According to Winston, it seems ___________ to Britain to move the experiments to the United States.

A. a pity

B. a pride

C. a disaster

D. a good idea

52. It can be inferred from the passage that ____________.

A. animal organs are commonly used for human transplant now

B. lots of patients need animal organ transplants now

C. examples of the animal tissues being rejected have happened

D. it is not safe to use animal organs for human transplant

答案

49-52 DBAC

解析

略

举一反三

A new study of 8,000 young people in the journal of Health and Social Behavior shows that although love can make adults live healthily and happily, it is a bad thing for young people. Puppy love（早恋）may bring stress for young people and can lead to depression. The study shows that girls become more depressed than boys, and younger girls are the worst of all.
The possible reason for the connection between love and higher risk of depression for girls is “loss of self”. According to the study, even though boys would say “lose themselves in a romantic relationship”, this “loss of self” is much more likely to lead to depression when it happens to girls. Young girls who have romantic relationships usually like hiding their feelings and opinions. They won’t tell that to their parents.
Dr. Marianm Kaufman, an expert on young people problems, says 15% to 20% young people will have depression during their growing. Trying romance often causes the depression. She advises kids not to jump into romance too early. During growing up, it is important for young people to build strong friendship and a strong sense of self. She also suggests the parents should encourage their kids to keep close to their friends, attend more interesting school activities and spend enough time with family.

Parents should watch for signs of depression—eating or mood changes—and if they see signs from their daughters or sons, they need to give help. The good news is that the connection between romance and depression seems to become weak with age. Love will always make us feel young, but only maturity（成熟）gives us a chance to avoid its bad side effects.
41. What’s the main idea of the passage?
A. Puppy love may bring young people depression.
B. Parents should forbid their children’s love.
C. Romance is a two-edged sword for adults.
D. Romance is good for young people.
42. Which of the following are more likely to have depression?
A. Young people who have a strong sense of self.
B. Young boys whose parents watch for their behavior.
C. Young girls who always hide their feelings and opinions.
D. Careless parents whose children are deep in love.
43. What can be inferred from the passage?
A. Lacking love can lead young people to grow up more quickly.
B. Early love makes young people keep close to their friends and parents.
C. Parents should help their children to be aware of the signs of depression.
D. The older a woman is, the less likely she seems to lose herself in romance.
44. What’s the author’s attitude towards puppy love?
A. Confused. B. Disapproving.
C. Uninterested. D. Scared.
45. Dr. Marianm Kaufman does NOT suggest parents’ encouraging their kids to ______.
A. keep close to their friends
B. attend more interesting activities
C. chat more on line
D. spend more time with their family

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What makes one person more intelligent than another? What makes one person a genius, like the brilliant Albert Einstein, and another person a fool? Are people born intelligent or stupid, or is intelligence the result of where and how you live? These are very old questions and the answers to them are still not clear.
We know, however, that just being born with a good mind is not enough. In some ways, the mind is like a leg or an arm muscle. It needs exercise. Mental (done with the mind) exercise is particularly important for young children. Many child psychologists (心理学家) think that parents should play with their children more often and give them problems to think about. The children are then more likely to grow up bright and intelligent. If, on the other hand, children are left alone a great deal with nothing to do, they are more likely to become dull and unintelligent.
Parents should also be careful with what they say to young children. According to some psychologists, if parents are always telling a child that he or she is a fool or an idiot, then the child is more likely to keep doing silly and foolish things. So it is probably better for parents to say very positive (helpful) things to their children, such as “That was a very clever thing you did.” or “You are such a smart child.”
36. The words “intelligent” and “brilliant” in the first paragraph probably mean _______ while “dull” in the second paragraph means ________.
A. bright and splendid; slow in thinking and understanding
B. pretty and handsome; ordinary-looking

great and important; common
D. hopeful and helpful; careless
37. According to the context we can guess that a genius is ________ while an idiot is ________.
A. a normal person; a funny person
B. a strong person; a weak person

a highly intelligent person; a foolish or weak-minded person
D. a famous person; an ordinary person
38. A person ________ is more likely to become a genius.
A. whose parents are clever
B. often thinking about difficult problems

often helped by his parents and teachers
D. born with a good brain and putting it into active use
39. It is better for parents ________.
A. to praise and encourage their children more often
B. to be hard on their children

to leave their children alone with nothing to do
D. to give their children as much help as possible
40. Which of the following is NOT true according to the article?
A. Parents play an important part in their children’s growth.
B. The less you use your mind the duller you may become.
C. Intelligence is obviously the result of where and how you live.
D. What makes a person bright or stupid is still under discussion.

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B
As a kid, I can remember going to the supermarket and grabbing eggs off the shelf. I would run them home to my mother because they were usually going into a delicious cake. Times have changed. Cage-free? Organic? Brown? White? Omega-3s(一种脂肪酸)?Help! Here are some tips to help you figure out which eggs you should be eating.
Brown or white? In fact, color is simply a sign of the breed of hen. Find the freshest egg with the most flavor and let color be a secondary concern.
Extra Omega-3s? Omega-3 eggs come from a hen whose diet has added flaxseed (亚麻籽)，which produces an egg containing an average of 225 mg of Omega-3 fatty acids and vitamin E. The countless health benefits for humans make these eggs an attractive purchase. My opinion? Eat a piece of fresh fish and get a pure pill of Omega-3s. Let eggs be eggs.
Does your egg need exercise? Free-range eggs are from hens raised without the limit of a cage, though they may or may not have spent much time outdoors. Organic eggs are from hens whose food must meet organic standards. These hens must be raised humanly, and they must be given time to the outdoors. Hey, happier hens do lay tastier eggs.
Does local make a difference? Nothing is better than local eggs. They may have a feather or two stuck to them or be a little imperfect in shape and may or may not be certified organic; however, they have one quality. I know exactly where my food came from and how it came into being! In some cases I can even ask the farmer when the eggs were laid and what they were fed.
55.What’s the best title for this passage?
A．Which Eggs Should You Be Eating?       B．Eggs Are Changing as Times Are Changing
C．Which Kind of Egg Is the Best?           D. The First Concern When Choosing Eggs
56. What does the author think of extra Omega-3s eggs?
A．They are a good choice for people to buy.
B．They contain fewer Omega-3s than fresh fish.
C．They have the highest content of pure Omega-3s.
D．They are not the best source of Omega-3s.
57. The underlined word “free-range” probably means “________ ”
A．wild        B．cage-free         C．organic        D．Omega-3-free
58.According to the passage, which of the following has nothing to do with an egg’s quality?
A．The egg’s color.                         B．The hen’s exercise.
C．The hen’s living conditions.                D．The hen’s food.

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For as long as I can remember, I have been very bad at arguing with people. As soon as someone disagrees with me, I get angry because I feel attacked, like the other person is out to show that I am wrong. And for some reason, I hate being wrong! So my immediate reaction is to get very defensive, I raise my voice, and I end up saying something I later regret. Needless to say, the whole thing ends with me beating myself up, and the other person feeling alienated (疏远) from me. This bothers me especially because my mother does the exact same thing and I hate it!
I have noticed this tendency in me for a long time now, but I have never been able to stop. I did some anger management work with a therapist (治疗专家) a while ago, but because I moved and turned to an advisor at school who cannot see me regularly, I have not been able to continue this important work. They tell you to stop and count to 10, control your breathing, calm yourself down before you talk. But that"s the whole problem, I could never think of stopping myself until it was too late! The hurtful things had already come out of my mouth, and I was stuck picking up the pieces.
Right now the problem is urgent because my relationship with a wonderful boyfriend is in danger because of my insecurity and hatred of being wrong. He is closing himself off to me because I have hurt him, and no doubt I am no longer attractive as a woman with no confidence in herself and a bad temper. How do I stop ruining my relationships and hating myself? How do I stop hating being wrong?
67. In what situation will the writer get angry easily?
A. When she has argument with people.
B. When people disagree with her.
C. When she is attacked.
D. When she does something wrong.
68. What does the underlined part in the first paragraph mean?
A. My mother disagrees with me.
B. My mother alienates herself from me.
C. My mother has the same problem with me.
D. My mother does the same wrong to me.
69. In the second paragraph, what does the underlined word "tendency" refer to?
A. Being bad at arguing with people.
B. Hating being wrong.
C. Being lost to others.
D. Hating my mother.
70. We can infer from the third paragraph that
A. the writer feels helpless with her problem
B. the writer finds it hard to count from one to ten
C. the writer has received effective advice about her problem
D. the writer is under the treatment of a therapist
71. What did the writer imply in the last paragraph?
A. She is closing herself off to her boyfriend.
B. She is much hurt by her boyfriend.
C. Her boyfriend has broken up with her.
D. She has to solve her problem in no time.

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B
Many people 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 way to deal with 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 brings congestion（拥塞）in it. That is to say, you cannot breathe well. As a result, you feel terrible. However, your body is actually “eating” the virus. Your temperature rises and you get a fever, but the heat of your body is also killing the virus. Besides, you have a runny nose to stop the virus from getting into you. You may feel terrible, but in fact your wonderful body is doing everything it can to kill the cold.
Different people have different ways to deal with common colds. In the United States and some other countries, for example, people might eat chicken soup to feel better. Some people take hot baths; some drink warm water, milk, or things like that; other people take medicine to stop the fever, congestion, and runny nose.
Some scientists suggest you should not take medicine when having a common cold, saying that it is bad for you to do that. If you take medicine, your body will stop reacting to the virus and thus won’t have a way to fight it and kill it, which makes the virus stay in you longer. Bodies can do an amazing job on their own.
56. According to the passage, what makes us wonder?
A. Why we never know which cold we will get.
B. Why scientists are able to send a man to the moon.
C. Why scientists cannot find a cure for the common cold.
D. Why there are hundreds of kinds of cold viruses out there.
57. Which of the following is NOT mentioned in the passage when we are suffering from colds?
A. Fever. B. Headache. C. Runny nose. D. Congestion.
58. When you have congestion in your nose, ________.
A. you will not be able to breathe well
B. your temperature is going to rise
C. your blood is running too fast
D. you will have a runny nose
59. According to the passage, people may deal with common colds in different ways EXCEPT ________.
A. taking medicine B. taking hot baths C. eating chicken soup D. drinking alcohol
60. Some scientists advise you not to take medicine when you have a common cold because _______.
A. your body will fight and kill the virus on its own
B. your body will probably react too much to the virus
C. it will take longer time for your body to get over the virus
D. it will not be able to stop the fever, congestion or runny nose

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