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Scientists have developed a water treatment system that they say is a powerful but simple way to save lives. Four grams of chemicals can treat ten liters of dirty water for a low cost, about ten cents.
Experts say infections from dirty water kill several thousand children in developing countries every day. The Procter and Gamble company has been developing the "PUR Purifier of Water" system since 1995. The company has been working with the United States Centers for Disease control and Prevention(C.D.C.).
C.D.C. researchers tested it in Guatemala, Pakistan and Kenya. Procter and Gamble researcher Greg Allgood says cases of diarrhea(腹泻) in those studies fell by about 50 percent. Researchers from Johns Hopkins University in Maryland tested the system at a refugee camp in Liberia. Mr. Allgood says that study found a reduction of more than 90 percent. Use of the system is being expanded worldwide.
The treatment contains bleach(漂白剂) to kill disease-causing organisms. It also contains something that dirt and other particles stick to. Mr. Allgood says the chemicals can remove lead and other dangerous metals and even agricultural poisons like D.D.T.
Mr. Allgood heads the Children"s Safe Drinking Water program at Procter and Gamble. He says about forty million packets of the treatment have been given to countries for free. They have been used in emergencies and in areas with limited supplies of clean water.
Clean water is a limited resource in many parts of the world. Delegates from about 130 nations attended the Fourth World Water Forum last month in Mexico City. Scientists, policy experts and others discussed ways to provide clean water to the world’s poor. Organizers say more than twenty percent of the world population lacks clean drinking water. The final declaration did not go so far as to declare water a human right. But it did say that governments, not private companies, must take the lead in improving the public’s ability to have clean water.
46. What is mainly talked about in this passage?
A. Water pollution around the world.
B. The causes of diarrhea in African countries.
C. A newly developed water treatment system.
D. The Fourth World Water Forum in Mexico City.
47. Which of the following developed the water treatment system?
A. The US Centers for Disease Control and Prevention.
B. The Procter and Gamble Company and C.D.C.
C. The Children’s Safe Drinking Water Program.
D. Johns Hopkins University.
48. Which of the following about the new water treatment system is NOT true?
A. It is effective but very expensive.
B. It was tested in Guatemala, Pakistan and Kenya.
C. It is being expanded worldwide.
D. It can remove dangerous metals in the water.
49. Which of the following shows that the shortage of clean water is a serious problem?
A. Forty million packets of the treatment have been given to countries for free.
B. Delegates from about 130 nations attended the Fourth World Water Forum.
C. Four grams of chemicals can treat liters of dirty water for a low cost.
D. Infections from dirty water kill several thousand children every day.
50. The best title for this article is ______.
A. A Small Packet of Chemicals, a Big Effect on Dirty Water
B. The Procter and Gamble Company and C.D.C.
C. The Shortage of Clean Water                           
D. How to Cure Diarrhea
答案

小题1:C
小题2:B
小题3:A
小题4:D
小题5:A
解析

核心考点
试题【Scientists have developed a water treatment system that they say is a powerful b】;主要考察你对题材分类等知识点的理解。[详细]
举一反三

III. 阅读(共两节,满分40分)
第一节:阅读理解(共15小题;每小题2分,满分30分)
阅读下列短文,从每题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。
Alzheimer"s disease affects millions of people around the world. American researchers say the disease will affect more than one hundred million people worldwide by the year twenty fifty. That would be four times the current number. Researchers and doctors have been studying Alzheimer"s patients for a century. Yet the cause and cure for the mental sickness are still unknown. However, some researchers have made important steps towards understanding it.
Several early signs of the disease involve memory and thought processes. At first, patients have trouble remembering little things. Later, they have trouble remembering more important things, such as the names of their children.
There are also some physical tests that might show who is at risk of developing Alzheimer"s disease. The tests look for proteins in brain and spinal cord fluid. The proteins appear to be found only in people with the disease. The protein tests correctly identify the presence of the disease in about ninety percent of patients.
Now, a much simpler physical test to predict Alzheimer"s risk has been developed. Researchers found that trouble with the sense of smell can be one of the first signs of Alzheimer"s. Using this information, they developed a test in which people were asked to identify twelve familiar smells. These smells included cinnamon, black pepper, chocolate, paint thinner, and smoke.
The study continued for five years. During this period, the same people were asked to take several tests measuring their memory and thought abilities. Fifty percent of those who could not identify at least four of the smells in the first test had trouble with their memory and thinking in the next five years.
Another study has shown a possible way to reduce a person"s chances of developing Alzheimer"s disease in old age. Researchers in Chicago found that people who use their brains more often are less likely to develop Alzheimer"s disease. Those who read a newspaper, or play chess or word games are about three times less likely to develop the condition.
Researchers say they still do not know what causes Alzheimer"s disease. But they say these findings might help prevent the disease in the future.
41. What’s the main idea of the passage?
A. Some early signs of the Alzheimer"s disease.
B. Some physical tests about Alzheimer"s disease.
C. The research about Alzheimer"s disease.
D. The patients of Alzheimer"s disease.
42. What’s the current number of Alzheimer’s patients?
A. 100 million               B. 25 million         C. 400 million              D. 2050 million
43. What is not the early signs of the Alzheimer"s disease according to the passage?
A. Poor memory                           B. Proteins exist in the brain.
C. Trouble with the sense of smell.             D. Less use of the brain.
44. What does the underlined word “it” in paragraph 1 refer to?
A. Alzheimer"s disease.                               B. Alzheimer"s patients. 
C. The cause and cure.                                    D. The research.
45. According to the passage, we can learn that _______.
A. there are no proteins in the brains of the people with no Alzheimer"s disease
B. the people who often use their brains will not get Alzheimer"s disease
C. researchers and doctors have found ways to cure Alzheimer"s disease
D. the people who have the trouble with the sense of smell will certainly suffer from Alzheimer"s disease
题型:不详难度:| 查看答案
Did you ever wonder how some of your favorite foods, products or toys came about? Believe it or not, they may have been an accident, or a failure of some other intention. Below, we found three mistakes we’re thankful for turned out to be what they are.
1. Most historians hold that the Chinese invented fireworks in the 9th century when they
discovered how to make gunpowder. Story has it that a Chinese cook accidentally mixed together what were then considered common kitchen items and noticed they burnt. When put tightly in a bamboo tube and lit, it blew up.
2. In May of 1886, a law led John Pemberton, a pharmacist(药剂师), to rewrite the formula(配方) for "Pemberton’s French Wine Coca,” his popular headache treatment. Containing sugar instead of wine as a sweetener, the outcome became something for Coke, which was later mixed with carbonated water. His bookkeeper suggested the name Coca-Cola because he thought the two C’s would look good together, which is how what we call Coca-Cola, a world –wide drink came into being.
3. During World War II, scientists at the University of Birmingham invented the magnetron—an important heat-producing part of the microwave oven(微波炉). While working for Raytheon Corporation after the war, the American engineer Percy Spencer was testing the magnetron when a chocolate bar in his pocket melted. He went on to test other foods including popcorn kernels, and found it to be a much more efficient way to cook. In 1947 Raytheon came out with the first restaurant microwave oven, which was six feet tall and weighed 750 lbs.   
小题1:The right time order of the three inventions, according to the passage, should be_________.
A.fireworks, the microwave and Coca-Cola
B.fireworks ,Coca-Cola and the microwave
C.Coca-Cola , fireworks and the microwave
D.the microwave, Coca-Cola and fireworks
小题2:Percy Spencer found the microwave efficient in cooking when he was _______.
A.looking for a way to melt his chocolate
B.trying to know how a magnetron could cook
C.working to know how the magnetron works
D.asked to invent a restaurant microwave oven
小题3:What can we learn from the above invention stories? 
A.Experiments make great inventors of our time.
B.Nothing is impossible if one tries each day.
C.Inventors come out of hard work at any time.
D.A small incident may lead to a great invention.
小题4:What’s the best title for the passage?
A.What great inventions they are!B.Inventions from Three Countries.
C.Stories of Accidental Inventions.D.The Human Inventions of time.

题型:不详难度:| 查看答案

Show Your Bones is the newest album from a musical group with an unusual name, the Yeah Yeah Yeahs. The energetic music made by these rock musicians is becoming very popular in America.
A singer, a guitar player and a drummer make up the Yeah Yeah Yeahs. Their rock sound is creative, unusual, and full of personality. Their music is considered an example of “indie”(short for independent) rock. Indie musicians like to protect their independence and artistic freedom. One way to do this is to avoid using major record companies. The lead singer Karen O is known for wearing wild clothing and having wild hairstyles while performing. Sometimes she even pours beer over herself and the audience. Imagine Karen O dancing around on stage as you listen to her sing the song, Phenomena.
The words in the songs on Show Your Bones are poetic and also a little strange. It is not always clear what the songs mean. In the song called The Sweets, Karen O describes colors and the motion of water. Also, she wonders about meeting someone again.
The Yeah Yeah Yeahs started playing music together in New York City.
Now Karen O has moved to Los Angeles, California. She says that she likes flying between the two cities and the band is now “bi-coastal”. Karen O also said that this album was the most difficult to make. The band was trying to find a different sound from their earlier albums. Their work seems to have been worth the effort. Critics say Show Your Bones might be one of the best albums of the year.
39. How many people are there in the Yeah Yeah Yeahs?
A. Two.       B.One.    C. Four.    D. Three.
40. According to the passage, we know that_______.
A. Karen O usually drinks beer on stage while singing
B. The Sweets is an album made by the Yeah Yeah Yeahs
C. Karen O doesn’t sing in New York any longer
D. the group had made more than one album before Show Your Bones
41. What can we infer from the passage?
A. Most major record companies follow certain The words on
B. Show Your Bones are all difficult to understand.traditions.
C. Show Your Bones has got a lot of criticism.
D. Show Your Bones is the best-seller of the year.
42. The writer’s attitude towards the Yeah Yeah Yeahs can be best described as  _______.
A. indifferent         B. curious      C. positive     D. negative
题型:不详难度:| 查看答案

第二节:完形填空(共20小题;每小题1.5分,满分30分)
阅读下面短文,掌握其大意,从每题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
Last Christmas was a very difficult time for me. My family were all back home in Florida, leaving me  36  in a rather cold California. I was working at the Southwest Airlines ticket counter. It was about 9:00 P.M. on Christmas Eve, and there were a few of us  37  and very few customers waiting to be   38  . When the next person came to the counter, I  39  to see a very old man, whose leg was wrapped in a bandage(绷带) ,standing with a stick. He walked very  40  over and in a low  41  told me that he had to go to New Orleans. I tried to explain to him there were no more  42  that night and that he would have to wait till the  43  .
Later, I  44  this old man was Mr. MacDonald and that his relative  45  him off at the sidewalk on Christmas Eve and told him to go to New Orleans, where he had his family. He was given some  46  and told just to go inside and buy a ticket. When  47  if he could come back tomorrow, he said that he had no place to  48  here and he would wait at the airport until tomorrow. I felt a little ashamed. The poor old man now  49  me of what being alone really meant.
I never really had a  50  like this, and I was feeling really miserable inside. I went back and told my supervisor(主管) about it, who promised to  51  everything. To my great  52  , the next morning we  53  to get him a ticket and took him to wait for the plane. As he left he said, “Thank you”; then he  54  his head and started to cry. Seeing this, my homesickness began to disappear.
From the experience I learned a  55  : He who helps others gets helped himself.
36.A. unbearable    B. hopeless     C. lively  D. alone
37.A. working       B. chatting      C. leaving       D. moving
38.A. invited  B. helped C. greeted       D. passed
39.A. pulled up      B. turned up   C. looked up   D. woke up
40.A. swiftly  B. slowly C. unwillingly D. wildly
41.A. position B. manner      C. voice  D. degree
42.A. flights   B. hotels  C. buses  D. passengers
43.A. morning       B. afternoon   C. evening      D. dusk
44.A. suspected      B. insisted      C. agreed D. learned
45.A. turned   B. pulled C. carried       D. dropped
46.A. cash      B. freedom     C. reasons       D. chances
47.A. asked    B. doubted      C. ordered      D. decided
48.A. hide      B. stay    C. visit    D. relax
49.A. informed      B. persuaded   C. reminded    D. warned
50.A. demand B. concern      C. challenge    D. situation
51.A. try B. arrange      C. give    D. inspect
52.A. relief     B. embarrassment   C. disappointment  D. regret
53.A. intended       B. planned      C. desired       D. managed
54.A. kept      B. bent    C. shook  D. lost
55.A. sentence       B. story   C. lesson D. text
题型:不详难度:| 查看答案

Stay and Play for 2 Days
Stay in the magic with your friends and family and book a hotel stay at either Disney’s Hollywood Hotel or Hong Kong Disneyland Hotel. As a hotel guest, you can enjoy an extra day at Hong Kong Disneyland Park during your stay when you buy a one-day ticket!
How It Works
Hotel guests staying at either the Disney’s Hollywood Hotel or Hong Kong Disneyland Hotel who buy a Hong Kong Disneyland Park ticket will receive an extra park admission for the following day. Guests can buy Stay and Play for 2 Days tickets as soon as you check in at the Front Desk. Ticket price will be based on the first day a guest visits the Park. If the first visit day is a Regular Day, guests can buy Regular Day tickets even though the following day may be a Peak (高峰) or Special Day. If the first visit day is a Peak Day, Guests should buy Peak Day tickets even though the following day may be a Regular Day.
This offer is available 13 May through 30 September 2009. Guests who have bought their Hong Kong Disneyland Park tickets before 13 May 2009 can exchange their unused and not expired(过期的)tickets to Stay and Play for 2 Days tickets at the Hotel Front Desk.
Where to Buy
Guests can book their hotel stay through the following:
Call Hong Kong Disneyland Reservation Center at +852 1-830-830, opens daily 9 am-6 pm.
OR
Get in touch with your travel agent.
Dates to Remember
Offer Period   13 May 2009– 30 September 2009 
Last Day to buy Stay and Play for 2 days tickets   29 September 2009 
Last Visit Date   30 September 2009 
For more information, please click here.
60. As a guest at Hong Kong Disneyland Hotel, you can enjoy an extra day in ______.
A. Disney’s Hollywood Hotel                 B. a Hong Kong family
C. Hong Kong Disneyland Hotel               D. Hong Kong Disneyland Park
61. You can get a Stay and Play for 2 Days ticket______.
A. from 13 May 2009 to 30 September 2009
B. by calling +852 1-830-830 any time of the day
C. by getting in touch with your travel agent
D. with your used Hong Kong Disneyland Park ticket
62. It can be inferred(推断)from the article that ______ .
A. Disney’s Hollywood Hotel is in Hollywood, the USA
B. Regular Day tickets are cheaper than Peak Day tickets
C. anyone can exchange his park ticket for a Stay and Play for 2 days ticket
D. this special offer lasts a little over six months
63. This advertisement is probably taken from ______ .
A. a newspaper        B. a magazine        C. the website      D. a travel handbook
题型:不详难度:| 查看答案
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