题目
题型：不详难度：来源：
Ace told the McClatchy News Service that at least 1,000 places should be chosen to spray water. The water would be sprayed between 20 and 200 feet into the air. Thousands of tons of seawater would be sprayed for years at a time.
The 1,000 sites would be picked after more studies. They would be mostly in the Northern Hemisphere(北半球). Ace says he would avoid tropical（热带的）areas of the globe. He says water turns to rain too quickly in these areas for his plan to work.
The water would be changed into vapor. That process requires heat. The water vapor would rise above the Earth. The water vapor would form clouds. The clouds would help in several ways. They would cool the Earth by reflecting sunlight. They would later turn into rains. The rains would provide another way of cooling the Earth.
Ace’s plan has gotten some support from a limited scientific study. Kenneth Caldeira is a climate scientist. He works at the Carnegie Institution’s Department of Global Ecology at Stanford University in California. Caldeira tested some of the Ace’s figures on a computer program. The computer model is used by top scientists to study global climate change. The model showed that the plan might work.
“More tests are planned in 2009. Ideas like Ace’s should be considered carefully and with an open mind,” Calderira said. “Every brilliant（卓越的）invention in the history of technology looked a little bit mad when first put forward.”
65．What’s the purpose of Ace’s plan?
A. To reduce air pollution.
B. To make summer cooler.
C. To offer dry areas more rain.
D. To solve the problem of global warming.
66．According to Ace’s plan,___________.
A. planes would be used to spray water.
B. it would be best to spray water on rainy days.
C. seawater would be sprayed high into the sky
D.1,000 sites in the Southern Hemisphere would be chosen.
67．Why wouldn’t Ace spray water in tropical areas?
A. Water is changed into vapor too quickly.
B. Water turns to rain too quickly.
C. It is hard for vapor to form clouds.
D. It is bad for local plants to have too much rain.
68. It seems that Caldeira ____________.
A. takes Ace’s plan seriously
B. thinks Ace’s idea too crazy
C. doesn’t believe the computer’s result
D. agrees to carry out Ace’s plan right away
答案
解析
核心考点
试题【While scientists are worried that humans are causing higher temperatures on the 】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
The United States has about 475,000 school buses -- all painted yellow. Each day they carry more than 25,000,000 children, half of all schoolchildren in the country. But these buses, on average, use four liters of diesel (柴油) fuel to travel less than sixteen kilometers. When the school year began last fall, diesel averaged 55 cents a liter nationally. The price nearly doubled, to a dollar and 8 cents, by the end of school in June.
Bob Riley speaks for the American School Bus Council. He says fuel prices for schools arc not much lower than others have to pay. As a result, schools are looking for ways to reduce transportation costs. Bus routes are being redrawn or, in some cases, canceled. Some areas are buying buses that use natural gas or other alternative fuels. Other steps include fewer field trips and less travel by sports teams. And some school districts may end any bus service not required by law.
Studies show that school buses are the safest form of transportation to and from school. The American School Bus Council says cuts in bus service are bad for children and possibly the environment. It says removing buses from the road will mean an increase in other vehicles transporting students. Spokesman Bob Riley says another concern is that reducing bus services might reduce attendance.
But it could also get more children to walk or bicycle to school. And that would surely make people happy at the National Center for Safe Routes to School. More kids walking or biking safely to school is the aim of a three-year-old federal program, part of an international movement. The goal is to increase physical activity and reduce air pollution. The United States will celebrate Walk to School Day on October eighth this year. But for some students, high fuel prices could make every day a walk-to-school day.
68. What does this passage mainly tell us?
A. High fuel prices" influences on school buses. B. New measures to transport school students.
C. The safest form of student transportation. D. The origin of Walk to School Day.
69. Which of the following information is implied in the first paragraph?
A. There are too many school buses in the United States.
B. There are too many students in the US.
C. Diesel prices are going up too rapidly in the US.
D. School buses consume too much diesel in the US.
70. In order to cut down transportation cost, many schools take the following measures EXCEI _____.
A. changing some bus routes B. stopping some bus routes
C. asking parents to drive children to school D. using other types of fuels
71. The National Center for Safe Routes to School encourages more children to walk or bike to school in order to ________.
A. save more fuels and diesel for the country.
B. keep the children safe on their way to school
C. make the children live a simple life
D. keep the children healthy and the environment clean
There is much discussion today about whether economic growth is desirable. At an earl
ier period, our desire for material wealth may have been justified. Now, however, this desire for more than we need is causing serous problems. Even though we have good intentions, we may be producing too much, too fast. Those who criticize economic growth argue that we must slow down. They believe that society is approaching certain limits on growth. These include the fixed supply of natural resources, the possible negative eff
ects of industry on the natural environment, and the continuing increase in the world’s population. As society reaches these limits, economic growth can no longer continue, and the quality of life will decrease. People who want more economic growth, on the other hand, argue that even at the present growth rate there are still many poor people in the world. They believe that only more growth can create the capital needed to improve the quality of life in the world. Furthermore, they argu
e that only continued growth can provide the financial resources required to protect our natural surroundings from industrialization. This debate over the desirability of continued economic growth is of vital importance to business and industry. If those who argue against economic growth are correct, the problems they mention cannot be ignored. To find a solution, economists and the business community must pay attention to these problems and continue discussing them with one another.
60. According to those who argue against economic growth we must slow down for the following reasons EXCEPT that___________.
A. our natural surroundings are in danger of being destroyed by industry
B. the fixed supply of natural resources marks a point beyond which economic growth cannot continue
C. the world population is ever increasing
D. more efforts should be made to improve the quality of our material life
61. Those who want more economic growth believe that continued economic growth ________.
A. is essential to the well-being of society as a whole
B. can provide the solution to many of our social problems today
C. can protect our environment from being polluted by industry
D. can provide us with more natural resources for industrialization
62. The passage is mainly about___________.
A. the contradiction between economists and the business community
B. the present debate on economic growth
C. the advantages and disadvanta
ges of economic growth D. the importance of the debate on economic growth
63. We may infer from the passage that ___________.
A. the author describes the case as it is
B. the author is for economic growth
C. the author is against continued economic growth
D. the author is very much worried about the problems caused by continued economic growth
第三部分：完形填空
阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项。
It was almost Christmas. We wrote to my father, asking him to 36 an artificial tree for us and _37 it to us in several smaller boxes. Two days before Christmas we were in a 38 . All of the boxes that my father had sent us arrived except for the one with the tree 39 . We decided to wait one more day.
Meanwhile, in Bremerhaven, a young mail clerk 40 a box under a counter. He 41 that someone would be without a tree for Christmas. Although he was closing up and there was no 42_ on Christmas, he processed the mail and got it to Mannheim.
After putting the 43 on the proper shelf, he headed to the snack bar. The place was 44 and he ended up sharing a table. Two men were speaking and the clerk discovered that one of his 45 at the table was working in Mannheim. He said to the man, "You could 46 play Santa for someone in Mannheim tonight if you"d like to." The man 47 to deliver it and the two walked to the mail room to 48 the package.
At home in Mannheim, we were busily 49 to think up some way to put our tree together, but couldn"t 50 a workable solution. We were ready to give up 51 the door bell rang. There stood a stranger holding a long 52 carton, our tree trunk. We invited him in, 53 it was Christmas Eve and he was 54 to get home to his own family.
The next day as we watched our little boy"s eyes light up at the 55 of our beautiful tree, I whispered a little prayer: "Bless the stranger who brightened up our Christmas with his kindness."
36. A. sell B. buy C. deliver D. bring
37. A. send B. pass C. carry D. take
38. A. surprise B. hunger C. pleasure D. panic
39. A. leaf B. trunk C. stand D. branch
40. A. watched B. caught C. spotted D. broke
41. A. directed B. whispered C. realized D. confirmed
42. A. delivery B. customer C. money D. letter
43. A. present B. tree C. mail D. package
44. A. crowded B. small C. noisy D. normal
45. A. friends B. colleagues C. relatives D. companions
46. A. really B. confidently C. kindly D. patiently
47. A. overcame B. agreed C. astonished D. struggled
48. A. fetch B. transform C. post D. consult
49. A. solving B. explaining C. trying D. worrying
50. A. come across B. come back to C. come upon D. come up with
51. A. while B. when C. as D. since
52. A. slim B. beautiful C. thick D. heavy
53. A. but B. so C. because D. or
54. A. in surprise B. it, the, way C. in a hurt7 D. in lime
55. A. sight B. back C. corner D. scene
An analysis by Mount Sinai researchers of over eight years of dietary data from more than 400,000 people has found that the relationship between high consumption of fruits and vegetables and a reduced risk of cancer is not as strong as commonly thought. The study is published online April 6, 2010 in the Journal of the National Cancer Institute. It is widely believed that a diet rich in fruits and vegetables can reduce the risk of cancer. In 1990, the WHO recommended eating five servings of fruits and vegetables a day to prevent cancer and other diseases. However, although many studies have been conducted since then, none have been able to confirm an association between fruit and vegetable intake and cancer resistance.
Paolo Boffetta, MD, MPH, lead author of the study and Deputy Director of The Tisch Cancer Institute at Mount Sinai School of Medicine, and colleagues analyzed data from the EPIC study to evaluate relationships between cancer risk and intake of total fruit and vegetables combined.
The EPIC followers, which are ongoing and organized by professor Elio Riboli at Imperial College in London, included 142,605 men and 335,873 women surveyed between 1992 and 2000 from 10 Western European countries. Detailed information on their dietary habits and lifestyle differences was obtained. After 8.7 years of follow – up, more than 30,000 of the study"s participants were diagnosed with cancer.
Dr. Boffetta and colleagues found a small but significant opposite relationship between high intake of fruits and vegetables and overall cancer risk. In this population, an increase of 200 grams a day of fruits and vegetables resulted in a reduction of about 3 percent of cancer risk. Vegetable consumption by itself also afforded a modest benefit but was restricted to women. Heavy drinkers who ate many fruits and vegetables had a somewhat reduced risk, but only for cancers caused by smoking and alcohol.
"The bottom line here is that, yes, we did find a protective effect of fruit and vegetable intake against cancer, but it is a smaller connection than previously thought," said Dr. Boffetta. "Any cancer protective effect of these foods is likely to be modest, at best.
"However, eating fruits and vegetables is beneficial for health in general and the results of this study do not justify changing current recommendations aiming at increasing intake of these foods," said Dr. Boffetta.
63．A new study shows that .
A．eating fruits and vegetables is beneficial to health
B．a diet rich in fruits and vegetables can reduce the risk of cancer
C．eating five servings of fruits and vegetables a day can prevent cancer and other diseases
D．the association between fruit and vegetable intake and cancer resistance is small
64．Before this study, people would believe that .
A．high intake of fruits and vegetables can prevent cancer and other diseases
B．heavy drinkers have the slightest chance of cancer
C．the WHO’s recommendations were modest
D．the WHO’s recommendations aim at increasing intake of fruits and vegetables
65．The population who took part in this study amounted to .
A．142,605 B．335,873 C．more than 400,000 D．30,000
66．From this study, we can infer that .
A．the intake of fruits and vegetables will be no longer necessary
B．the connection between fruits and vegetables intakes and cancer resistance is smaller than originally thought
C．taking in fruits and vegetables will still be appreciated in spite of the new discovery
D．any cancer protective effect of these foods is likely to be modest
People across America are lining up at doctor’s offices, hospitals, and even shopping streets hoping to receive a flu shot .However, many of them have returned home without one.
This year’s flu season is starting early and it’s already spreading quickly .Officials said that the flu has now spread to 50states.That’s why the flu shot isn’t easy to find.
Help will soon be on its way .A manufacturer of the will ship 100,000 doses for adults, and 150,000for children soon. Although this could be one of the worst flu outbreaks in years, experts say that the flu is not a very serious disease for most people.
“We don’t need to fear or worry that something very bad will happen,” said the director of Centers for Disease control and Prevention.” Most of us will get through this fine.”
|
Gerberling also reminds people to use common sense during flu season. People should cover their mouths and noses when they cough ,and wash their hands often .children who have symptoms of the flu should stay home from school, and adults who develop the symptoms shouldn’t go to work .This simple prevention could prevent the illness from spreading .
Of course, there is always chicken soup to make you feel better. Scientific studies show that chicken soup actually does help people breathe better when they are sick. Scientists say that any hot liquid will help, but for some reason, soup does it best .they say that the soup’s smell may be important, but they are not completely sure why. And if you don’t like chicken, keep in mind that the healing effect comes from the soup ,not the chicken.
57．What is mainly discussed in the passage?
A．Preventing the flu by people themselves B．The lack of the vaccine
C．the spread of flu in America D．Ways to deal with the flu
58．Which statement is correct according to the passage?
A．Help in the form of vaccine has arrived
B．Chris Rikon’s case is used to prove the shortage of the shot
C．Eating more chicken can help keep the flu away
D．The reason why chicken soup is helpful is clear now
59．Chicken soup can help people with flu in the way that ____
A．chicken smell makes you feel better B．it’s delicious and makes you eat better
C．its smell gives you comfortable breath D．the chicken provides you a better mind
60．Why most of the people can’t get the flu shot?
A．Because it is expensive B．Because the manufacturer of the vaccine closed down
C．Because the flu has spread widely ,there isn’t enough vaccine
D．because only children and the elderly are given vaccine.
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