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How far would you be willing to go to satisfy your need to know? Far enough to find out your possibility of dying from a terrible disease? These days that’s more than an academic question, as Tracy Smith reports in our Cover Story.
There are now more than a thousand genetic(基因的)tests, for everything from baldness to breast cancer, and the list is growing. Question is, do you really want to know what might eventually kill you? For instance, Nobel Prize-winning scientist James Watson, one of the first people to map their entire genetic makeup, is said to have asked not to be told if he were at a higher risk for Alzheimer’(老年痴呆症).
“If I tell you that you have an increased risk of getting a terrible disease, that could weigh on your mind and make you anxious, through which you see the rest of your life as you wait for that disease to hit you. It could really mess you up.” Said Dr. Robert Green, a Harvard geneticist.
“Every ache and pain,” Smith suggested, could be understood as “the beginning of the end.”“That ’s right. If you ever worried you were at risk for Alzheimer’s disease, then every time you can’t find your car in the parking lot, you think the disease has started.”
Dr. Green has been thinking about this issue for years. He led a study of people who wanted to know if they were at a higher genetic risk for Alzheimer’s. It was thought that people who got bad news would, for lack of a better medical term, freak out. But Green and his team found that there was“no significant difference”between how people handled good news and possibly the worst news of their lives. In fact, most people think they can handle it. People who ask for the information usually can handle the information, good or bad, said Green.
71.The first paragraph is meant to__________.
A. ask some questions B. introduce the topic
C. satisfy readers’ curiosity D. describe an academic fact
【答案】B
【解析】通过两个问题引出话题。
72.Which of the following is true of James Watson?
A. He is strongly in favor of the present genetic tests.
B. He is more likely to suffer from Alzheimer’s disease.
C. He believes genetic mapping can help cure any disease.
D. He doesn’t want to know his chance of getting a disease.
【答案】D
【解析】根据第二段Nobel Prize-winning scientist James Watson, one of the first people to map their entire genetic makeup, is said to have asked not to be told if he were at a higher risk for Alzheimer’。“James Watson要求如果他的基因表明他有很高的老年痴呆症的可能不要告诉他。”
73.According to Paragraphs 3 and 4, if a person is at a higher genetic risk, it is__________.
A. advisable not to let him know B. impossible to hide his disease
C. better to inform him immediately D. necessary to remove his anxiety
【答案】A
【解析】根据这两个自然段可知,如果你提前被告知你将来可能患某种可怕的疾病会mess you up。
74.The underlined part“freak out”in Paragraph 5 is closest in meaning to“_________”.
A. break down B. drop out C. leave off D. turn away
【答案】A
【解析】根据下文But的转折,以及no significant difference可知,freak out的意思是A(精神垮掉)。
75.The study led by Dr. Green indicates that people__________.
A. prefer to hear good news B. tend to find out the truth
C. can accept some bad news D. have the right to be informed
【答案】C
【解析】根据第五段内容 In fact, most people think they can handle it可知答案选C.
查看习题详情和答案>>Nations plan next steps to end global warming
On December 3,more than 10,000 scientists, environmental activists and government officials from 187 countries met in Bali, Indonesia, which is the largest global warming conference ever held.
One of the main goals of the two-week meeting is to develop a replacement for the international treaty called the Kyoto Protocol, which has been signed by 174, countries, calling for limits on the emission of greenhouse gases.
Under the Kyoto Protocol, nations were legally bound to reduce greenhouse gases, but since it was signed in 2005, they have continued to increase worldwide. Of the largest greenhouse gas emitters, only Russia and Japan have agreed to follow me rules. China and India-second and sixth on the list-are making efforts to make cuts.
The U.S signed the treaty in 1997 but has not yet agreed to follow the strict rules, which require that greenhouse gas release be reduced by 10% by 2012. U.S. officials are opposed to these mandatory(强制性的),or required, cuts in emissions. "We’re worrying that it would be too costly and would hurt the U.S. economy. But we're not here to be a roadblock," said Harlan L. Watson, a top U.S. climate official.
Even if greenhouse gases are reduced, scientists say it will take decades or longer to stop the global warming that is already underway. To help poor countries deal with rising temperatures and climate changes, the UN has developed the "Adaptation Fund" to help them improve farming techniques and water systems.
But so far, it has only raised $67 million.
"The money should come from the countries most responsible and most capable," said Kate Raworth, a senior research official from the Oxfam International aid group. She listed the U.S., European Union, Japan, Australia and Canada.
1. The underlined word "they" in Paragraph 3 refers to“_____”.
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A.greenhouse gases |
|
B.the countries which have signed the treaty. |
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C.people who are against the treaty |
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D.the measures taken to reduce greenhouse gases |
2. By saying "But we’re not here to be a roadblock", Harlan L. Watson wants to say that_____.
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A.the U.S will be a roadblock to the global economy |
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B.the U.S has realized that some action must be taken |
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C.the U.S refused to follow the rules of the Kyoto Protocol |
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D.the U.S thinks this conference of no importance |
3.According to Kate Raworth, the "Adaptation Fund" should come from all the following EXCEPT______.
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A.Japan |
B.European Union |
C.India |
D.Canada |
4.Why did U.S officials not agree to make effort to reduce greenhouse gases?
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A.Because the greenhouse gases they emitted are not so harmful. |
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B.Because they fear that it would affect the U.S economy. |
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C.Because they shouldn’t be responsible for global warming. |
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D.Because they think these gases won’t cause global warming_____. |
5.We can learn from the passage that_____.
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A.the conference will last a fortnight |
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B.the U.S hasn’t signed the Kyoto Protocol. |
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C.many manufacturers attended the conference |
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D.the global warming will be stopped as soon as greenhouse gases are reduced |
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That year , in the local school, there was a new math teacher, as well as some new pupils. One of the new kids was the stupidest child anyone had ever seen. It made no difference how quickly or how slowly they tried explaining numbers to him; he would always end up saying something enormously stupid. Like two plus two was five, seven times three was twenty-seven, or a triangle had thirty corners……
Before this boy arrived, math lessons had been the most boring of all. Now they were great fun. Encouraged by the new teacher, the children would listen to the pieces of nonsense spouted by the new kid, and they would have to correct his mistakes.
Whenever the new teacher asked questions, the stupid kid would stand up but made the wrong answers, the other students all wanted to be the first to find his mistakes, and then think up the most original ways to explain them. To do this they used all kinds of stuff : sweets, playing cards, oranges, paper planes, etc. It didn’t seem like any of this bothered the new kid.
However, Little Lewis was sure that it was bound to make him feel sad inside. Lewis was sure he would see him crying. So, one day, he decided to follow the new kid home after school. On leaving school, the new kid walked a few minutes to a local park, and there he waited for a while, until someone came along to meet him……
It was the new teacher!
The teacher gave the new kid a hug, and off they went, hand in hand. Following from a distance, Lewis could hear they were talking about math.
【小题1】根据短文第二三段描述,可知这位新老师的工作很有创造性,故选A。
【小题2】根据短文最后一段Following from a distance, Lewis could hear they were talking about math.描述,可知选B,这个所谓的最蠢的学生其实比其它学生知道的多。
【小题3】根据Lewis was sure he would see him crying. So, one day, he decided to follow the new kid home after school.描述,可知选B。
【小题4】联系上文To do this they used all kinds of stuff :可知选C。
【小题5】The math lessons became interesting again because of the new teacher’s ___________.
| A.creativity | B.imagination | C.responsibility | D.curiosity |
| A.was in great need of math teacher’s help after class |
| B.knew much more about math than other classmates |
| C.had no much gift for math and was slow to learn it |
| D.disliked both the new math teacher and his lessons |
| A.learn about where he lived | B.find out if he felt upset |
| C.say something to comfort him | D.make friends with him |
| A.To find the stupidest kid’s mistakes. |
| B.To think up the most original ways to explain. |
| C.To use all kinds of stuff. |
| D.To follow him home after school. |
President Obama,s plan last week to overhaul(改善)former president George W.Bush’s No Child left Behind program is an improvement on a good thin9.But it doesn’t go far enough.
Obama outlined a goal that by 2020,all grade school and high school students ale on a path toward college and career readiness.
However, what we need is a practical plan that not only requires all high school graduates to take at least two years of college but also makes it financially possible for them to do so. We’ve provided a free public education through the l2th grade.If we’re going to keep up—or catch up—with some other countries(1ike China)in preparing young people for careers,a 12-year education program no longer is enough.
About 3 million students across the USA will graduate from high school this spring. But only 2 million will go on to college, according to a survey by the National Center for Education Statistics(NCFES).For the more than l million who won’t go on,money is a major factor.If tuition(学费)were free,about half of them could make up other COSTS from family or part—time jobs.
Critics(批评家)of free college tuition will say we can’t afford it because of the federal deficit(联邦赤字)and other rising costs.Let’s see some government spending in detail:
In the last nearly 10 years.the wars in Iraq and Afghanistan have cost us $1 trillion(that’s $1,000 billion,or an average of$100 billion a year).Federal money spent on public elementary and secondary education in the last year for which figures are available was$47 billion.If we end costly and unnecessary wars and nation—building efforts abroad,the federal government could provide more money on public education,for which state and local governments now carry most of the burden(负担).
According to President Obama’s plan,in 10 years, .
A.there will be no expensive and unnecessary Wars
B.all grade and high school students can go to college
C.the U.S.will catch up with China in career preparation
D.students Call enjoy a l2-year public free education
If tuition were not charged.
A.about 2.5 million students could afford college education
B.about 2 million students could be provided chances of college education
C.over l million students still could not afford college education
D.about 3 million students could graduate from high school
The author may agree that President Obama’s plan
A.has little to do with Gorge W.Bush’s program
B. does not agree with the survey by NCFES
C.does not contain practical measures to achieve its goal
D.will lighten the burden of state and local governments
It can be inferred from the passage that
A.the wars in Iraq and Afghanistan are expensive but necessary
B.the federal Can not provide more money on education
C,critics of free college tuition think little of the plan
D.President Obama’s plan might be hard to carry out
查看习题详情和答案>>(2011·安徽卷)B
Think about the different ways that people use the wind. You can use it to fly a kite or to sail a boat. Wind is one of our cleanest and richest power sources(来源), as well as one of the oldest. Evidence shows that windmills(风车)began to be used in ancient Iran back in the seventh century BC. They were first introduced to Europe during the 1100s, when armies returned from the Middle East with knowledge of using wind power.
For many centuries, people used windmills to grind(磨碎)wheat into flour or pump water from deep underground. When electricity was discovered in the late 1800s, people living in remote areas began to use them to produce electricity. This allowed them to have electric lights and radio. However, by the 1940s, when electricity was available to people in almost all areas of the United States, windmills were rarely used.
During the 1970s, people started becoming concerned about the pollution that is created when coal and gas are burned to produce electricity. People also realized that the supply of coal and gas would not last forever. Then, wind was rediscovered, though it means higher costs. Today, there is a global movement to supply more and more of our electricity through the use of wind.
60. From the text we know that windmills .
A. were invented by European armies
B. have a history of more than 2800 years
C. used to supply power to radio in remote areas
D. have rarely been used since electricity was discovered
61. What was a new use for wind power in the late l9th century?
A. Sailing a boat.
B. Producing electricity.
C. Grinding wheat into flour.
D. Pumping water from underground.
62. One of the reasons wind was rediscovered in the 1970s is that .
A. wind power is cleaner
B. it is one of the oldest power sources
C. it was cheaper to create energy from wind
D. the supply of coal and gas failed to meet needs
63. What would the author probably discuss in the paragraph that follows?
A. The advantage of wind power.
B. The design of wind power plants.
C. The worldwide movement to save energy.
D. The global trend towards producing power from wind.
【解析】选D。推理判断题。根据末段句子Today, there is a global movement to supply more and more of our electricity through the use of wind可知,接下来作者应该谈论利用风能发电的情况,因此选择D项。
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