Critics of cloning often repeat the question related to the controversial(有爭議的) science “Just because we can, does it mean we should?”  The closer we come to being able to clone a human, the hotter the debate over it grows. For all the good things cloning may achieve, opponents say that it will do just as much harm. Another question is how to governing cloning process.

There is federal official law banning cloning in the United States, but several states have passed their own laws to ban the practice. The US Food and Drugs Administration(FDA), has also said that anyone in the United States attempting human cloning must first get its permission. In Japan, human cloning is a crime that is punished by up to 10 years in prison.

While laws are to ban cloning at this time, some scientists believe that the technology is not ready to be tested on humans. Ian Wilmut, one of the co-creators of Dolly, has even said that human cloning projects would be an irresponsible crime. Cloning technology is still in its early stages, and nearly 98% percent of cloning efforts end in failure. The embryos are either not suitable for implanting into the uterus(子宮) or they die shortly after birth.

The clones that do survive end up suffering from deadly or problematic genetic abnormalities(畸形). Some clones have been born with faulty heart, lung problems and blood vessel problems. One of the most famous cases was a cloned sheep that was born with but malformed arteries(畸形動(dòng)脈) leading to the lungs.

Opponents of cloning will point out that we can enthanize(安樂死) these faulty clones of other animals, but they ask what if a human clone is born with these same problems. Advocates of cloning respond that it is now easier to pick out faulty embryos even before they are implanted into the mother. The debate over human cloning is just beginning, but as science advances, it could be the biggest moral dilemma of the 21st century.

68. Which word in the text is the opposite of the underlined word “opponents”?

A. critics        B. advocates          C. scientists           D. co-creators

69. The writer writes this passage mainly to ________________.

A. support passing laws to ban human cloning

B. list problems with human cloning

C. introduce critics’ ideas about human cloning

D. state the debate over human cloning

70. Which of the following will Ian Wilmut probably NOT agree with?

A. Cloning technology is in its early stages.

B. Human cloning should be made illegal.

C. Very few cloning efforts are successful.

D. Cloning technology is ready to be tested on humans

 

【答案】

68-70 BDD

【解析】略

 

練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語 來源：2010屆江蘇省揚(yáng)州市高三第二次模擬考試英語試題 題型：閱讀理解

任務(wù)型閱讀 (共10小題；每小題1分，滿分10分)
請(qǐng)認(rèn)真閱讀下列短文，并根據(jù)所讀內(nèi)容在文章后表格中的空格里填入一個(gè)最恰當(dāng)?shù)膯卧~。
注意：每個(gè)空格只填1個(gè)單詞。請(qǐng)將答案寫在答題卡上相應(yīng)題號(hào)的橫線上。
Waste to Energy—JUST BURN IT!
WHY BURN WASTE?
Waste-to-energy plants generate (產(chǎn)生) enough electricity to supply 2.4 million households in the US. But, providing electricity is not the major advantage of waste-to-energy plants. In fact, it costs more to generate electricity at a waste-to-energy plant than it does at a coal, nuclear, or hydropower plant. 
The major advantage of burning waste is that it considerably reduces the amount of trash going to landfills. The average American produces more than 1,600 pounds of waste a year. If all this waste were landfilled, it would take more than two cubic yards of landfill space. That’s the volume of a box three feet long, three feet wide, and six feet high. If that waste were burned, the ashes would fit into a box three feet long, three feet wide, but only nine inches high!
Some communities in the Northeast may be running out of land for new landfills. And, since most people don’t want landfills in their backyards, it has become more difficult to obtain permits to build new landfills. Taking the country as a whole, the United States has plenty of open space, of course, but it is expensive to transport garbage a long distance to put it into a landfill.
TO BURN OR NOT TO BURN?
Some people are concerned that burning garbage may harm the environment. Like coal plants, waste-to-energy plants produce air pollution when the fuel is burned to produce steam or electricity. Burning garbage releases the chemicals and substances found in the waste. Some chemicals can be a threat to people, the environment, or both, if they are not properly controlled.
Some critics of waste-to-energy plants are afraid that burning waste will hamper (妨礙，阻礙) recycling programs. If everyone sends their trash to a waste-to-energy plant, they say, there will be little motive to recycle. Several states have considered or are considering banning waste-to-energy plants unless recycling programs are in place. Massachusetts, New Jersey, and New York City have delayed new waste-to-energy plants, hoping to increase the level of recycling first.
So, what’s the real story? Can recycling and burning waste coexist? At first glance, recycling and waste-to-energy seem to be at odds (不一致), but they can actually complement (彌補(bǔ)) each other. That’s because it makes good sense to recycle some materials, and better sense to burn others.
Let’s look at aluminum, for example. Aluminum mineral is so expensive to mine that recycling aluminum more than pays for itself. Burning it produces no energy. So clearly, aluminum is valuable to recycle and not useful to burn.  
Paper, on the other hand, can either be burned or recycled—it all depends on the price the used paper will bring.
Plastics are another matter. Because plastics are made from petroleum and natural gas, they are excellent sources of energy for waste-to-energy plants. This is especially true since plastics are not as easy to recycle as steel, aluminum, or paper. Plastics almost always have to be hand sorted and making a product from recycled plastics may cost more than making it from new materials. 
To burn or not to burn is not really the question. We should use both recycling and waste-to-energy as alternatives to landfilling.
Waste to Energy—JUST BURN IT!

WHY BURN WASTE?
Advantages of waste to Energy
◆Though at a high (71) _______, waste-to-energy plants can produce enough electricity for 2.4 million US
households.
◆Burning waste can (72) _______ a considerable amount of trash going to landfills.
(73)_______ for landfilling
◆Some communities (74) _______ land for new landfills.
◆Most people refuse to build landfills around.
◆Building landfills in far-away areas will increase the cost of (75) _______ garbage.
TO BURN
OR NOT
TO BURN?
(76) __________ about burning garbage
◆Burning garbage releases chemicals, which, if not
properly controlled, can be (77) _______ to people and the environment.
◆Burning garbage will hamper recycling programs.
Coexistence of recycling and burning waste
Recycling and waste-to-energy can go well with each other in that some materials like aluminum are fit to recycle, while others like plastics are fit to (78) _______.
(79)__________
Whether to burn or not to burn, we should (80) _______ landfilling with both recycling and waste-to-energy to deal with garbage.

查看答案和解析>>

科目：高中英語 來源：2012-2013學(xué)年河北省衡水中學(xué)高二第一次調(diào)研考試英語試卷（帶解析） 題型：閱讀理解

What is great art? On the one hand, we can all see that great art is old art which is called great. But how do we know which art of our own times is great, and which will be forgotten? And who decides?
These are important questions, for the great art of the past often was not considered great during its own time. When Shakespeare and Charles Dickens were writing, for example, most critics considered them as hack (平庸的) writers with little or no literary ability.
Similarly, Van Gogh and many of the other Impressionist painters of the late nineteenth century were not allowed to participate in events involving what were thought to be the "real" painters of the time, and often they were very poor. Yet today their paintings often sell for millions of dollars, while those so-called "real" painters are now barely remembered.
So what makes great art? Can, for example, rock music be great art? Music videos? Cartoons and comics? Those who call themselves critics of the fine arts often have been the last to recognize great art in the past, and we can probably expect this to be the situation today.
Critics often don’t recognize great art because they tend to be prejudiced against what is popular. Popular works, whether they are novels, movies, or comics, are usually considered to be produced for the sake of money only, and not for the sake of art.
But popularity, it seems to me, is one of the three signs that a present-day work of art may come to be thought of as great. The other two are that it is groundbreaking, and that it is inherently (內(nèi)在的) beautiful.
Many works have one or even two of these qualities of being popular, unusual, and beautiful. But having all the three often will mean that a work of art will someday be seen to be great, though it may take a good spoonful of time, such as a century or two, to know for sure.
【小題1】The first paragraph is intended to__________.

A．lead to the following and arouse the reader’s curiosity
B．introduce some real painters to the readers
C．introduce the questions the writer wants to answer
D．explain what kind of art will become popular
【小題2】The author used the examples of Shakespeare, Charles Dickens and Van Gogh to prove _____.
A．these masters’ works have some shortcomings
B．these masters wouldn’t have been so successful without the critics
C．truly beautiful works of art are never understood when first created
D．great masters are often not acknowledged while they were alive
【小題3】According to the author, great works _______.
A．may be presented in different forms
B．a(chǎn)re generally valued by critics
C．a(chǎn)re thought valuable because of their sale price
D．will lose their value if they’re not accepted
【小題4】What can be inferred from the passage?
A．Critics have changed their attitudes to great works.
B．Most of the opinions of critics are valueless.
C．The work of art itself, not the critics, determines its greatness.
D．Works of Impressionist painters will be great one day.

查看答案和解析>>

科目：高中英語 來源：2012-2013學(xué)年上海市高三高考?jí)狠S英語卷（解析版） 題型：閱讀理解

In so many ways, cyberspace(網(wǎng)絡(luò)空間) mirrors the real world. People ask for information, play games, and share hobby tips. Others buy and sell products. Still others look for friendship, or even love.

Unlike the real world, however, your knowledge about a person is limited to words on a computer screen. Identity and appearance mean very little in cyberspace. Rather, a person’s thoughts—or at least the thoughts they type—are what really count. So even the shyest person can become a chat-room star.

Usually, this “faceless” communication doesn’t create problems. Identity doesn’t really matter when you’re in a chat room discussing politics or hobbies. In fact, this emphasis on the ideas themselves makes the Internet a great place for exciting conversation. Where else can so many people come together to chat about their interests?

But some Internet users want more than just someone to chat with. They’re looking for serious love relationships. Is cyberspace a good place to find love? That answer depends on whom you ask. Some of these relationships actually succeed. Others fail miserably.

Supporters of online relationships claim that the Internet allows couples to get to know each other intellectually first. Personal appearance doesn’t get in the way.

But critics of online relationships argue that no one can truly know another person in cyberspace. Why? Because the Internet gives users a lot of control over how others view them. Internet users can carefully craft their words to fit whatever image they want to give. And they don’t have to worry about what their “faceless” communication is doing for their image. In a sense, they’re not really themselves.

All of this may be fine if the relationship stays in cyberspace. But not knowing a person is a big problem in a love relationship. With so many unknowns, it’s easy to let one’s imagination “fill in the blanks.” This inevitably leads to disappointment when couples meet in person. How someone imagines an online friend is often quite different than the real person.

So, before looking for love in cyberspace, remember the advice of Internet pioneer Clifford Stoll: “Life in the real world is far richer than anything you’ll find on a computer screen.”

(Note: Answer the questions or complete the statements in NO MORE THAN TEN WORDS.)

1.We learn about a person in cyberspace only through  _________________.

2.Why is the Internet a great place for exciting conversation?

3.What makes online love relationship often fail?

4.From the passage we can learn that the writer __________________________ looking for love on the Internet.

 

查看答案和解析>>

科目：高中英語 來源：2012屆廣東省高三上學(xué)期第三次月考英語試卷（解析版） 題型：閱讀理解

Concern with money, and then more money, in order to buy the conveniences and luxuries of modern life, has brought great changes to the lives of most Frenchmen. More people are working harder than ever before in France. In the cities the traditional leisurely midday meal is disappearing. Offices, shops, and factories are discovering the great efficiency of a short lunch hour in company lunch rooms. In almost all lines of work emphasis now falls on ever increasing output. Thus the “typical” Frenchman produces more, earns more, and buys more consumer goods than his counterpart of only a generation ago. He gains in creature comfort and ease of life. What he loses to some extent is his sense of personal uniqueness, or individuality.

Some say that France has been Americanized. This is because the United States is a world symbol of the technological society and its consumer products. The so called Americanization of France has its critics. They fear that “assembly line life” will lead to the disappearance of the pleasures of the more graceful and leisurely (but less productive) old French style. What will happen, they ask, to taste, elegance, and the cultivation of the good things in life to joy in the smell of a freshly picked apple, a stroll by the river, or just happy hours of conversation in a local café?

Since the late 1950s life in France has indeed taken on qualities of rush, tension, and the pursuit of material gain. Some of the strongest critics of the new way of life are the young, especially university students. They are concerned with the future, and they fear that France is threatened by the triumph of this competitive, goods-oriented culture. Occasionally, they have reacted against the trend with considerable violence.

In spite of the critics, however, countless Frenchmen are committed to keeping France in the forefront of the modern economic world. They find that the present life brings more rewards, conveniences, and pleasures than that of the past. They believe that a modern, industrial France is preferable to the old.

1.Which of the following is a feature of the old French way of life?

A．Leisure, elegance, and efficiency

B．Elegance, efficiency, and taste

C．Leisure, elegance, and taste

D．Elegance, efficiency, and leisure

2.Which of the following is NOT true about Frenchmen?

A．Many of them prefer the modern life style.

B．They actually enjoy working at the assembly line.

C．They are more concerned with money than before.

D．They are more competitive than the old generation.

3.The passage suggests that _________.

A．in pursuing material gains the French are suffering losses elsewhere

B．it’s now unlikely to see a Frenchman enjoying a stroll by the river

C．the French are fed up with the smell of freshly picked apples

D．great changes have occurred in the life style of all Frenchmen

4.Which of the following is true about the critics?

A．Critics are greater in number than people enjoying the new way of life.

B．Students critics are greater in number than critics in other fields.

C．Students critics have, on occasion, resorted to violent means against the trend.

D．Critics are concerned solely with the present and not the future.

5.Which of the following best states the main idea of the passage?

A．Changes in the French Way of Life

B．Criticism of the New Life Style

C．The Americanization of France

D．Features of the New Way of Life

 

查看答案和解析>>

科目：高中英語 來源：2009年高考試題（天津卷）解析版 題型：閱讀理解

 

Tens of thousands of theatre tickets will be given away to young people next year as part of a government campaign to inspire a lifelong love for theatre.

The plan to offer free seats to people aged between 18 to 26—funded with £2.5 million of taxpayers’ money—was announced yesterday by Andy Burnham, the Culture Secretary. It received a cautious welcome from some in the arts world, who expressed concern that the tickets may not reach the most underprivileged.

The plan comes as West End theatres are enjoying record audiences, thanks largely to musicals teaming up with television talent shows. Attendances reached. 13.6 million in 2007, up 10 percent on 2006, itself a record year. Total sales were up 18 percent on 2006 to almost £470 million.

One theatre source criticized the Government’s priorities（優(yōu)先考慮的事） in funding free tickets when pensioners were struggling to buy food and fuel, saying: “I don’t know why the Government’s wasting money on this. The Yong Vic, as The Times reported today, offers excellent performances at cheap prices.”

There was praise for the Government’s plan from Dominic Cooke of the Royal Court Theatre, who said: “I support any move to get young people into theatre, and especially one that aims to do it all over England, not just in London.”

Ninety-five publicly funded theatres could apply for funding under the two-year plan. In return, they will offer free tickets on at least one day each week to 18 to 26-year-olds, first-come, first-served. It is likely to be on Mondays, traditionally a quiet night for the theatre.

Mr. Burnham said: “A young person attending the theatre can find it an exciting experience, and be inspired to explore a new world. But sometimes people miss out on it because they fear it’s ‘not for them’. It’s time to change this perception.”

Jeremy Hunt, the Shadow Culture Secretary, said: “The real issue is not getting enthusiastic children into the theatre, but improving arts education so that more young people want to go in the first place. For too many children theatres are a no-go area.”

1.Critics of the plan argued that ______.

A. the theatres would be overcrowded

B. it would be a waste of money

C. pensioners wouldn’t get free tickets

D. the government wouldn’t be able to afford it

2.According to the supporters, the plan should ______.

A. benefit the television industry

B. focus on producing better plays

C. help increase the sales of tickets

D. involve all the young people in England

3.Which of the following is TRUE about the plan?

A. Ninety-five theatres have received funding.

B. Everyone will get at least one free ticket.

C. It may not benefit all the young people.

D. Free tickets are offered once every day.

4.We can infer from the passage that in England ______.

A. many plays are not for young people

B. many young people don’t like theatre

C. people know little about the plan

D. children used to receive good arts education

5.According to the passage, the issue to offer free tickets to young people seems ______.

A. controversial

B. inspiring

C. exciting

D. unreasonable

 

查看答案和解析>>

同步練習(xí)冊(cè)答案