Research advances over the past decade have told us that, with a little work, we

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Research advances over the past decade have told us that, with a little work, we humans can clone just about anything we want, from frogs to monkeys and probably even ourselves!
So, we can clone things, but why would we want to?
Of all the reasons, cloning for medical purposes has the most potential to benefit large numbers of people. How might cloning be used in medicine?
1. Cloning animal models of disease
Much of what researchers learn about human disease comes from studying animal models such as mice. Often, animal models are genetically engineered to carry disease-causing mutations(变异) in their genes. Creating these transgenic（转基因的） animals is a time-intensive process that requires trial-and-error and several generations of breeding（培育）. Cloning technologies might reduce the time needed to make a transgenic animal model, and the result would be a population of genetically identical animals for study.
2．Cloning stem cells(干细胞) for the treatment of diseases
Stem cells are the body"s building blocks, responsible for developing and repairing the body throughout life. As a result, they might be used to repair damaged or diseased organs and tissues. Researchers are currently looking up cloning as a way to create certain human stem cells for the research of diseases.
3. Cloning farm animals for drug production
Farm animals such as cows, sheep and goats are currently being genetically engineered to produce drugs or p

roteins that are useful in medicine. Just like creating animal models of disease, cloning might be a faster way to produce large herds of genetically engineered animals.
小题1:From Purpose One, we can infer that .

A．most transgenic animals are clone

B．most animals carry engineered genes

C．most transgenic animal models are not cloned

D．most animals carry disease-causing mutations in their genes

小题2:It can be learned from Purpose Two that cloning technologies can be mainly use do .

A．create damaged or diseased organs and tissues

B．clone genetically defined human stem cells

C．develop and maintain the body

D．repair the body throughout life

小题3:According to Purpose Three, cloning technologies can be mainly used to .

A．speed up the producing of genetically engineered animals

B．produce drugs or proteins that are useful in medicine

C．raise genetically engineered cows, sheep and goats

D．produce large herds of animals for human beings

答案

小题1:C
小题1:B
小题1:A

解析

略

举一反三

Can you understand the beginning of this essay?
“My smmr hols wr CWOTT. B4, we usd 2go2 NY 2C my bro, his GF & 3 kds FTF.”
The Scottish teacher who received it in class had no idea what the girl who wrote it meant. The essay was written in a form of English used in cell phone text messages. Text messages (also called SMS2) through cell phones became very popular in the late 1990s. At first, mobile phone companies thought that text messaging would be a good way to send messages to customers, but customers quickly began to use the text messaging service to send messages to each other. Teenagers in particular enjoyed using text messaging, and they began to create a new language for messages called texting.
A text message is limited to 160 characters, including letters, spaces, and numbers

, so messages must be kept short. In addition, typing on the small keypad of a cell phone is difficult, so it’s common to make words shorter. In texting, a single letter or number can represent a word, like “r” for “are,”“u” for “you,” and “2” for “to.” Several letters can also represent a phrase, like “lol” for “laughing out loud.” Another characteristic of texting is the lea

ving out of letters in a word, like spelling “please” as “pls.”
Some parents and teachers worry that texting will make children bad spellers and bad writers. The student who wrote the essay at the top of this page said writing that way was more comfortable for her. (The essay said, “My summer holidays were a complete waste of time. Before, we used to go to New York to see my brother, his girlfriend, and their three kids face to face.”)
Not everyone agrees that texting is a bad thing. Some experts say languages always evolve, and this is just another way for English to change. Other people believe texting will disappear soon. New technology for voice messages may soon make text messages a thing of the past.
小题1:What is the writer’s opinion of text messaging?

A．It is fun and easy to do.

B．It is not bad for children.

C．It will make children bad writers.

D．The writer does not give an opinion.

小题2:Which characteristic of texting is NOT described in the passage?

A．Using phrases to represent essays

B．Using numbers to represent words

C．Using letters to represent phrases

D．Using letters to represent words

小题3:Which of the following was most probably the title of the student’s essay?

A．My Gr8 Tchr

B．CU in LA

C．My GF

D．My Smmr Hols

小题4: Why do some people think that texting is bad?

A．It costs too much.	B．It’s too difficult to type.
C．Children won’t learn to write correctly.	D．It’s not comfortable.

小题5:Why aren’t some people worried about the effect of texting?

A．Not many people use texting.

B．Spelling in English is too difficult.

C．Children quickly become bored with texting.

D．Texting will disappear because of new technology.

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The other day at a supermarket, I saw a naughty child of about six crying loudly, falling to the floor and refusing to move. All the while the troubled mother was trying to persuade him to behave well but failed. A little smack(打)on his bottom would have worked ,I thought.
Teenagers also cause discipline(纪律)problems. As a teacher I had a 16-year-old student who had fallen in love with a waiter at a fast-food restaurant. In fact, she had left home to stay with him. So we decided to put her in the school hostel .She refused. When she heard her mother begging her to stay in the school hostel, she turned around and said: “Why don’t you stay in the school hostel if you like it so much?”
My hands were going to slap her for being so rude but the poor mother continued to cajole her , hoping the gentle persuasion would work wonders. It did not. Later I heard that she had run away from home again.
The list goes on and on. Could it be that today’s parents are so softer and believe that they must not rod(棍棒惩罚)their children for fear of the bad results? Or do they really believe that the children will get rid of the bad habits and behave well as they grow older? I beg to disagree. I believe it is the parents’ duty to disc

ipline the children even at a young age.
My children who are now adults will prove the fact that I used the rod when I thought it necessary. Later when they went abroad, they told their university friends how they were disciplined. Their friends were shocked and said that I could be charged with child abuse. However ,my daughter showed great respect for me when she told them that she would not be where she was today if not for my strict discipline.
小题1:According to the passage, the author would probably________.

A．beat the children every day	B．treat the children in a soft way
C．leave the children as they are	D．punish the children when necessary

小题2: The underlined word cajole” (in para.3)means_______.

A．persuade

B．scold

C．forgive

D．punish

小题3:In the author’s opinion, how should parents make their children grow up well?

A．rod their children	B．punish their children
C．discipline their children	D．discipline and punish their children if necessary

小题4:Which of the following is TRUE according to the passage?

A．The naughty boy’s mother hit him

B．The teacher’s daughter lived with her mother

C．The daughter was thankful for her mother’ strict discipline

D．The author was charged with child abuse by the daughter’s friends

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Do you blank out, freeze up or feel so nervous in exams that you have trouble writing answers to questions that you knew just last night? If so, you likely have a case of test anxiety.
But, don’t panic. By recognizing the problem, you are taking the first step towards overcoming it.
Believe it or not, a touch of nervousness can sharpen your mind, allowing you to perform more quickly. This is because under stress, the body releases the hormone adrenaline (肾上腺素), which prepares it for something important that will happen. However, too much anxiety can result in sleeplessness, loss of appetite（食欲） before tests, and poor performances. Some people might feel shaky, hot, or even sick.
If you worry a lot or are a perfectionist, you are more likely to have trouble with test anxiety. Those who have prepared poorly for a test or have had negative experiences taking tests may also experience test anxiety.
When you feel a storm of anxiety coming on, stop what you are doing and make your mind a blank. If possible, actually tell yourself to “STOP”. This will get your mind off the stress.
Then think of being at a place of comfort and let your body relax. As you continue the test, find questions you know the answers to and answer them first. This will help restore your confidence.
Talk to yourself using positive language. Make it a habit to replace each negative thought with a logical reason. For example：“ I’ve studied hard and I know the material, so I’m ready to do the best I can.”
Another thing you can do is to learn to accept mistakes. In fact, they can be valuable learning opportunities.
Last but not least, start test preparation early---three to five days ahead of the quiz or test. After all, good study habits and skills ---for example, time management and note-taking – will give you the feeling that your are in control.
小题1:The first step to overcome nervousness is___ .

A．stopping what you are doing, and make your mind a blank.
B．getting aware of your problem that you are always nervous
C．releasing a kind of body liquid.	D．making full preparations

小题2:___ are more likely to feel very nervous in tests.

A．People who feel a touch of nervousness in tests.

B．People who haven’t prepared very well.

C．People who require that everything must be perfect.

D．People who have recognized their problems.

小题3: According to the passage, which statement is TRUE?

A．Those who have ever failed in tests must feel anxious.

B．A touch of nervousness is a good thing.

C．You should answer the questions on the paper one by one

D．Full preparation is not as important as nervousness controlling.

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Compared to people with bad attitudes，people who are cheerful and relaxed are less likely to suffer from colds，according to a new study.“It’s possible that being upbeat helps the body fight illnesses，” says Sheldon Cohen，the study’s lead researcher from Carnegie Mellon University (CMU) in Pittsburgh.
In a previous（先前的） study，Cohen and his colleagues put coldcausing viruses into the noses of 334 healthy adults. People who tended to be cheerful and lively were least likely to develop sniffles，coughs，and other

cold symptoms. People who showed positive feelings were also less likely to mention symptoms to their doctors，even when medical tests detected those symptoms.
Those findings were interesting，but they didn’t prove that a person’s attitude affects whether he or she gets sick. Instead，it was still possible that a person’s underlying personality is what matters. Evidence suggests，for instance，that certain people are naturally more likely to be outgoing and optimistic，with high selfesteem and a sense of control over life. This would mean that who we are，not how we feel，ultimately decides our chances of catching colds.
To figure out which mattered more (personality or emotions)，the CMU team interviewed 193 healthy adults. The researchers talked to each person over the phone every evening for 2 weeks. At the end of the interviewing period，people got nose drops that contained either cold or flu viruses. Then，each person stayed in an isolated room for 5 or 6 days. The results showed that everyone in the study was equally likely to get infected. Their symptoms，however，differed depending on the types of emotions that they had reported over the previous 2 weeks. Among those who reported good moods and had been infected with the flu virus，for example,2

8 percent developed coughs and stuffy noses. On the other hand，those symptoms struck 41 percent of people who had been less upbeat.
小题1:
What would be the best title for the passage?

A．Smiles Turn away Colds

B．An Interesting Way to Beat Colds

C．Be Outgoing and Optimistic to Fight Colds

D．What Matters More，Personality or Emotions?

小题2:
In the previous study，people who showed positive feelings______.

A．didn’t catch colds as often

B．developed cold symptoms more slowly

C．were less likely to have cold symptoms detected

D．were less likely to feel cold symptoms

小题3:
What mainly decides our chances of catching colds according to the new study?

A．Personality.

B．Selfesteem（自尊）.

C．Emotions.

D．Attitudes.

小题4:
The underlined word “symptoms” probably means________.

A．something that causes cold

B．something that results in cold

C．signs that something exists，especially something bad

D．changes in your body or mind that show that you are not healthy

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By 2050
Futurologists predict that life will probably be very different in 2050.
TV channels will have disappeared. Instead, people will choose a program from a “menu” and a computer will send the program directly to the television. Today, we can use the World Wide Web to read newspaper stories and see pictures

on a computer thousands of kilometers away. By 2050, music, films, programs, newspapers, and books will come to us by computer.
Cars will run on new, clean fuels and they will go very fast. Cars will have computers to control the speed and there won’t be any accidents. Today, many cars have computers that tell drivers exactly where they are. By 2050, the computer will control the car and drive it to your destination. Space planes will take people halfway around the world in 2 hours. Today, the United States Space Shuttle can go into space and land on Earth again. By 2050, space planes will fly all over the world and people will fly from Los Angeles to Tokyo in just 2 hours.
Robots will have replaced people in factories. Many factories already use rob

ots. Big

companies prefer robots—they don’t ask for pay

rises or go on strike, and they work 24 hours a day. By 2050, we will see robots everywhere—in factories, schools, offices, hospitals, shops and homes.
Medical technology will have conquered many diseases. Today, there is equipment that connects directly to the brain to help people hear. By 2050, we will be able to help blind and deaf people to see and hear again.
Scientist will have discovered how to control genes（基因）. Scientists have already produced clones(克隆) of animals. By 2050, scientists will be able to produce clones of people, and decide how they look, how they behave and how clever they are. Scientists will be able to do these things, but should they?
小题1:
According to the passage, the following can be realized today EXCEPT __________.

A．reading newspapers on a computer

B．making a space shuttle go into space and land on Earth again

C．creating cloned animals

D．choosing TV programs freely from a “menu”

小题2:
We can learn from the passage that some big companies prefer robots to human workers, because human workers __________.

A．can work 24 hours a day	B．often ask for more pay
C．are not clever enough	D．are often late for work

小题3:
From Paragraph 5 we can infer that __________.

A．there will be no blind and deaf people by 2050

B．few diseases will attack people by 2050

C．equipment is connected directly to the brain to help people hear today

D．medical technology will be more effective by 2050

小题4:
What is the author’s attitude towards the cloning technology?

A．The author does not support the use of cloning technology.

B．The author thinks human cloning is impossible.

C．The author does not really support the idea of human cloning.

D．The author is quite excited about human cloning.

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