Recently there was a major discovery in the scientific research—the mapping of all DNA in a human gene（基因） is complete．Couple of years ago, this seems an impossible task for scientist to accomplish．All this progress in science leads us to believe that the day, when the human being will be cloned, is not far away．Human cloning has always been a topic of argument, in terms of morality or religion．
Taking a look at why cloning might be beneficial, among many cases, it is arguable that parents who are known to be at risk of passing a genetic limitation to a child could make use of cloning．If the clone was free of genetic limitations．then the other clone would be as well．The latter could foe inserted in the woman and allowed to ripen to term．Moreover, cloning would enable women, who can't get pregnant, to have children of their own．
Cloning humans would also mean that organs could be cloned, so it would be a source of perfect transfer organs．This, surely would be greatly beneficial to millions of unfortunate people around the world that are expected to lose their lives due to failure of single （or more） organ （s）．It is also arguable that a ban on cloning may be unlawful and would rob people of the right to reproduce and limit the freedom of scientists．
Arguments against cloning are also on a perfectly practical side．Primarily, I believe that cloning would step in the normal "cycle" of life．There would be a large number of same genes, which reduce the chances of improvement, and, in turn, development—the fundamental reason how living things naturally adapt to the ever-changing environment．Life processes failing to do so might result in untimely disappearance．Furthermore, cloning would make the uniqueness that each one of us possesses disappear．Thus, leading to creation of genetically engineered groups of people for specific purposes and, chances are, that those individuals would be regarded as "objects" rather than people in the society．
Scientists haven't 100 per cent．guaranteed that the first cloned humans will be normal．Thus this could result in introduction of additional limitations in the human "gene-pool"．
Regarding such arguable topics in "black or white" approach seems very innocent to me personally．We should rather try to look at all "shades" of it．I believe that cloning is only legal if its purpose is for cloning organs; not humans．Then we could regard this as for "saving life" instead of "creating life"．I believe cloning humans is morally and socially unacceptable．Which of the following is true according to the passage?
| A．Genetic limitation will be beneficial for some women |
| B．A large number of genes will prevent us from developing |
| C．Prohibition of cloning might limit the freedom of scientists |
| D．First cloned humans might be normal according to scientists |
What's the author's opinion on cloning?
| A．Cloning should be entirely banned． |
| B．Cloning should be used in creating life． |
| C．Cloning will take away the right to reproduce． |
| D．Cloning is acceptable if it is used for cloning organs． |
Where can you read this article?
| A．In a story book |
| B．In a magazine |
| C．In a science fiction |
| D．In a brochure |
Which of the following shows the structure of the passage?
Expressions about water are almost as common as water itself.
The expression to be in hot water is a very old expression. Hot water was used five hundred years ago to mean being in trouble. One story says it got that meaning from the custom of throwing extremely hot water down on enemies attacking a castle.
That no longer happens. But we still get in hot water. When we are in hot water, we are in trouble. It can be any kind of trouble—serious or not so serious. A person who breaks a law can be in hot water with the police. A young boy can be in hot water with his mother, if he walks in the house with dirty shoes.
Beingin deep water is almost the same as being in hot water. When you are in deep water, you are in a difficult position.
To keep your head above water is a colorful expression that means staying out of debt. A company seeks to keep its head above water during economic hard times. A man who loses his job tries to keep his head above water until he finds a new job.
Water over the dam is another expression about a past event. It is something that is finished. It cannot be changed. The expression comes from the idea that water that has flowed over a dam cannot be brought back again.
Another common expression to hold water, is about the strength or weakness of an idea or opinion that you may be arguing about. It probably comes from a way of testing the condition of a container.; If it can hold water, it is strong and has no holes in it. If your argument can hold water, it is strong and does not have any holes.
Throwing cold water also is an expression that deals with ideas or suggestions. It means to not like an idea. For example, you want to buy a new car because the old one has some problems. But your wife throws cold water on the idea, because she says a new car costs too much.If Robert says he is in deep water, we may guess_________.
| A．he is swimming under the water |
| B．he is tired of changing shoes |
| C．he nearly breaks a law |
| D．he faces a difficult choice |
What can you say to your friend Jane, who is troubled by a mistake she has made?
| A．Keep your head above water. |
| B．Throw cold water. |
| C．It is water over the dam. |
| D．It can hold water. |
If your argument doesn’t hold water, then it is _________.
| A．weak | B．convincing | C．logical | D．disappointing |
The passage explains the origins of the following expressions EXCEPT_________.
| A．to be in hot water |
| B．to keep your head above water |
| C．water over the dam |
| D．to hold water |
Watching television makes it easier for toddlers（学走路的孩子）to kick and scream, according to a U.S. study. Children under two should not watch any TV. The longer they sit in front of the box, the worse their behavior becomes.
Just having the TV on in the background, even if the child wasn’t watching it, was also connected to troublemaking behavior although the relationship wasn’t as strong, said the researchers.
“Parents should be smart about TV use,” researcher Jennifer Manganello from the University at Albany, New York, said.
“They should limit the time that children use TV, pay attention to the content of TV programs, and consider how TV is used throughout the home.”
The study looked at 3,128 women from 20 U.S. cities who had a child between 2005 and 2008.
While there was some diversity（差异）of education among the women, one-third hadn’t graduated from high school.
Two-thirds of the mothers said their three-year-old watched more than two hours of TV a day, and the average（平均的）viewing time for children was around three hours. On average, the TV was on for about five additional hours on a common day.
After accounting for factors（因素）such as living in a violent neighborhood, scientists also found watching TV was strongly connected to behavior such as hitting others, having angry moods, being disobedient（不服从的）, and screaming a lot.
The researchers thought that children may see violence on TV, and spend less time on positive development tasks such as reading or playing.
The American Academy of Paediatrics suggests no TV at all for children at two and younger, and two hours a day or less for older kids.what is the main idea of the passage?
| A．Children should choose positive programs. |
| B．Children should keep away from TV. |
| C．Watching TV can make children violent. |
| D．Parents should watch less TV. |
what do we know from Paragraph 2?
| A．Children can watch good programs. |
| B．Children will be affected as long as the TV is on. |
| C．It’s OK that the TV is on if children don’t watch it. |
| D．Children’s troublemaking behavior is mainly caused by watching TV. |
what can be learned about the study between 2005~2008 from the passage?
| A．The TV was on for about three hours. |
| B．The women studied have different jobs. |
| C．The study included men and women. |
| D．Most women allowed their child to watch TV. |
Children who spend much time watching TV will ________.
| A．not be hit by others |
| B．be influenced by others |
| C．become angry easily |
| D．know more about the neighborhood |
Did you ever wonder who invented products like Liquid Paper, Kevlar or paper bags? Most would think a man invented these items. Guess what? Women invented each of these. What? You don’t believe me? Well, read this:
Liquid Paper was invented by Bette Nesmith Graham in 1951 and originally called Mistake Out. Being a typist, Bette was increasingly irritated with being unable to erase her typing mistakes. The messy business left her hands black and the paper dirty. Bette was good at painting and remembered that an artist paints over mistakes. She applied that same principle to typing mistakes and Liquid Paper was born, making Bette into a self-made millionaire.
Kevlar, yes, the Kevlar of the bullet proof vest（防弹衣）—what police officers and soldiers wear, was invented by Stephanie Kwolek. Stephanie worked for the DuPont Company as a research chemist. She was asked to find a high-performance fiber. Originally, this fiber was intended to be used for car tires (轮胎). However, the fiber she developed in 1964 was amazing and is still used in products such as sailboats, skis, shoes, and yes, bullet proof vests. In 1995 Stephanie was named to the National Inventor’s Hall of Fame.
Margaret Knight invented a machine that revolutionized the making of paper bags. Paper bags had been made like envelopes but Margaret developed a machine that would fold and paste（粘）a flat-bottom paper bag, the very same type we still use today. Margaret’s family was poor and she started working at the age of nine. Her first invention at the age of twelve was a safety tool for a loom（织布机）. Later she worked for the Columbia Paper Bag Company. It was there that she worked on improving the making of paper bags. She was issued her patent（专利）in 1870.
So next time you use a new product or an old one, will you wonder who made it? Do some research on the web and answer a few questions like: Who invented it? How was it invented? You may be surprised at some of the stories you uncover.The underlined word “irritated” in Paragraph 2 is the closest in meaning to_________.
| A．annoyed | B．excited | C．delighted | D．nervous |
What do we know about Margaret?
| A．She was a member of the National Inventor’s Hall of Fame. |
| B．Her first invention was made when she was twenty. |
| C．Her invention was designed to produce envelopes. |
| D．She began working when she was very young. |
which of the following best shows the structure of the passage? (①="paragraph" 1, ②="Paragraph" 2,… ⑤="paragraph" 5)
What would be the best title for the passage?
| A．How inventions were made |
| B．Amazing inventions by women |
| C．Women and modern technology |
| D．You can also be an inventor |
It has been more than twenty years since pioneering British computer programmer, Sir Tim Berners Lee, created the World Wide Web. But could he have ever imagined how much the web would change our lives? And would he approve of how some British students are taking advantage of his invention?
Universities and exam boards around the UK are becoming increasingly concerned with the rising number of cases of plagiarism, many of which are facilitated (助长) by the Internet access.
In the UK most school and university students complete coursework throughout the academic year which contributes toward their final mark. In many cases coursework makes up the main part of the qualification. Since coursework is completed in the students’ own time it cannot be monitored by teachers in the same way as an exam.
Derec Stockley, director of examinations in the UK, explains, “Plagiarism affects coursework more than anything else, and in the cases that come to our attention, more and more are linked to the Internet.”
At a university level recent reports suggest that plagiarism has evolved from separate cases of individual cheating to systematic and even commercial operation. Students can now pay for bespoke essays to be written for them by experts.
It is estimated that the market in online plagiarism is now worth 200 million pounds a year. Every month more and more websites offering to write student’s essays for them appear on the Internet.
Barclay Littlewood, owner of Degree Essays UK employs 3,500 specialist writers and charges between 120 pounds and 4,000 pounds per essay. However, Mr. Littlewood refutes the accusation that he is helping students to cheat.What dose the underlined word “plagiarism” in Paragraph 2 mean in the passage?
| A．problems of the Internet | B．cheating |
| C．learning pressure | D．coursework |
Which of the following statements is mentioned by the author?
| A．There will be no problem if online plagiarism is a systematic and commercial operation. |
| B．With the help of online plagiarism, students can write more creative coursework. |
| C．The Internet seems to have contributed much to the problem of online plagiarism. |
| D．Teachers should lay more emphasis on exams than coursework. |
It can be inferred from the text that the author seems to _____.
| A．blame Sir Tim Berners Lee for having created the World Wide Web |
| B．have studied the problem of online plagiarism for nearly 20 years |
| C．be in favour of Littlewood’s defence against the accusation of him |
| D．worry about the quality of students’ coursework influenced by the World Wide Web |
The paragraph following the passage will most probably be about_____.
| A．Mr. Littlewood’s defence against those who accused him of his website |
| B．different people’s opinions on plagiarism |
| C．how students use the website of Mr. Littlewood |
| D．the author’s opinions of Mr. Littlewood |
Scientist Says ‘No’ to Human Cloning
“I’ve never met a human worth cloning,” says cloning expert Mark Westhusin from his lab at Texas A&M University. “It’s a stupid endeavor.”
That’s an interesting choice of adjective, coming from a man who has spent millions of dollars trying to clone a 13-year-old dog named Missy. So far, he and his team have not succeeded, though they have cloned two cows and a cat.
They just might succeed in cloning Missy soon — or perhaps not for another five years.
Westhusin's experience with cloning animals leaves him upset by all this talk of human cloning. In three years of work on the Missy project, using hundreds upon hundreds of dog's eggs, the A&M team has produced only a dozen or so embryos carrying Missy's DNA. None have survived the transfer to a surrogate（代孕的）mother. The wastage of eggs and the many spontaneously aborted(流产，发育不全) fetuses（胎）may be acceptable when you're dealing with cats or bulls, he argues, but not with humans. “Cloning is incredibly inefficient, and also dangerous,” he says.
Even so, dog cloning is a commercial opportunity, with a nice research payoff. Ever since Dolly the sheep was cloned in 1997, Westhusin's phone has been ringing with people calling in hopes of duplicating their cats and dogs, cattle and horses. “A lot of people want to clone pets, especially if the price is right,” says Westhusin. Cost is no obstacle for Missy's mysterious billionaire owner; he's put up $3.7 million so far to fund A&M's research.
Contrary to some media reports, Missy is not dead. The owner wants a twin to carry on Missy's fine qualities after she does die. The prototype（原型；雏形）is, by all accounts, athletic, good-natured and supersmart. Missy's master does not expect an exact copy of her. He knows her clone may not have her temperament（气质、性情）. In a statement of purpose, Missy's owner and the A&M team say they are “both looking forward to studying the ways that her clones differ from Missy.”
Besides cloning a great dog, the project may contribute insight into the old question of nature vs. nurture. It could also lead to the cloning of special rescue dogs and many endangered animals.
However, Westhusin is cautious about his work. He knows that even if he gets a dog pregnant, the offspring, should they survive, will face the problems shown at birth by other cloned animals: abnormalities like immature lungs and heart and weight problems~ “Why would you ever want to clone humans,” Westhusin asks, “when we're not even close to getting it worked out in animals yet?”By “stupid endeavor”, Westhusin means to say that ________.
| A．human cloning is a foolish undertaking |
| B．animal cloning is absolutely impractical |
| C．human cloning should be done selectively |
| D．animal cloning is not worth the effort at all |
What does the first paragraph tell us about Westhusin's dog cloning project?
| A．Its success is already in sight. |
| B．It is progressing smoothly. |
| C．It is doomed to utter failure. |
| D．Its outcome remains uncertain. |
By cloning Missy, Mark Westhusin hopes to ________.
| A．study the possibility of cloning humans |
| B．search for ways to modify its temperament |
| C．find out the differences between Missy and its clones |
| D．examine the reproductive system of the dog species |
We learn from the passage that animal clones are likely to have ________.
| A．a bad temper |
| B．defective（有缺陷的、有毛病的）organs |
| C．immune deficiency |
| D．an abnormal shape |