The lack of clean drinking water is a major problem worldwide. The World Health Organization says more than one billion people live in areas where renewable water resources are not available. The prob 题目和参考答案——青夏教育精英家教网—

题目内容

The lack of clean drinking water is a major problem worldwide. The World Health Organization says more than one billion people live in areas where renewable （可再生的） water resources are not available. The problem is especially serious in Asia and the Pacific. A United Nations report says water availability in than area is the second lowest in the world, after Africa.

The U.N report notes that the world’s poorest countries are also the ones that use the most water for agriculture. Agriculture uses about eighty percent of the water in the Asia－Pacific area. There has also been an increase in water used for industry.

Millions of people worldwide have to drink unsafe water for lack of clean drinking water. This leads to an increase in diseases like diarrhea, the second leading cause of death in children under five.

The UN Millennium Development Goals（联合国新千年发展目标） for 2015 call for a fifty percent decrease in the number of people without safe drinking water and basic health conditions.

Scientists, governments and aid organizations around the world are increasing their efforts to meet these goals. Last month the U. N, called on the international community to work together to solve the water crisis.

Some American and South Korean researchers are experimenting with a new technology for turning sea water into drinking water. The new technology uses electricity to help separate electrically charged salt particles （微粒） from water to make it drinkable.

The researchers tested their desalination process on a computer chip, which removed ninety-nine percent of the salt and other harmful matters from water samples. So far the method purifies only small amounts of water. But the researchers say it may someday be available as a personal water purification product.

1．What’s the main idea of this passage?

A．The lack of drinking water is threatening the world.

B．Many people in Asia and the Pacific lack safe drinking water.

C．The UN calls on scientists to work together to solve water crisis.

D．Scientists find a new way to turn sea water into drinking water.

2．Which of the following is TRUE according to the passage?

A．Water availability in Africa is the second lowest in the world.

B．Industry is using more than 50% of water in the Asia – Pacific area.

C．Diarshea is the most severe death – causing disease for children under five.

D．UN hopes to reduce the number of people without safe drinking water by hall by 2015.

3．What do we know about the new technology according to the last two paragraphs?

A．The process uses electricity to heat sea water so as to remove salt from it

B．The researchers use a computer chip to help obtrude salt canticles of sea water

C．The experimenting method could remove most of the salt and other harmful things.

D．The technology has been able to purify enough water for daily personal use.

4．What’s the meaning of the underlined word in the last paragraph.

A．Charging salt particles. B．Removing salt.

C．Adding salt. D．Producing salt.

ADCB

练习册系列答案

相关题目

阅读理解，阅读下列短文，从每题所给的四个选项(A、B、C、D)中，选出最佳答案。

　　Television is a central part of many people's lives．There are very few places in the world where one cannot find a television set．Some sporting events, such as the Olympic Games or the football World Cup, can attract audiences of many millions．But is television a good or bad influence on young people in the modern world?

　　Thomas Murray, president of the British Parents Against Television Society, believes that it has not improved young people's lives．“Television damages family life, ” he argues．“At mealtime, families no longer talk to each other．In the evenings, youngsters do not spend good quality time with family members．Instead, they watch television．” Murray says that this lack of communication leads to social problems．

　　Murray also believes that the content of television programmes provides young people with poor role models．“There is so much violence(暴力)on TV－guns, kung fu fighting, and so on．Young people think that all problems should be solved by aggression．”

　　It is not just young people's mental health that worries Murray．“Teenagers don't get enough exercise because they spend so many hours watching television．They also develop back problems from sitting down for so long, and eye ________ strain from the effort of watching．”

　　Murray would like to see changes to television habits．“Programmes should be educational．Their contents should be nonviolent and healthy．There should be no programmes after ten o’clock in the evening．Parents should teach their children to enjoy their spare time by playing sports or games．And certainly, the television should be switched off during mealtime．

　　Susan Taylor is a television producer．She believes that television is a good influence on young people．“Television brings the outside world to youngsters．It even brought us pictures from the moon! And look what happens after the Olympic Games or the World Cup matches have been shown on TV．People start to take more exercise．Also, there are a lot of programmes about healthy eating and keeping fit．”

　　However, Taylor agrees with Murray's point of view concerning parents．“Of course parents have a role to play in educating their kids．They should turn the TV off during mealtime and they should talk with their children as often as possible．”

(1)

The article is mainly about ________．
[　　]
A．	that TV is a central part of many people's lives
B．	that Murray would like to see changes to television habits
C．	whether TV is a good or bad influence on young people in the modern world
D．	that parents should turn the TV off during mealtime and talk with their children

(2)

Which of the following statements is True?
[　　]
A．	Teenagers will get backache for sitting down for a long time．
B．	Murray only worries about young people's mental health．
C．	TV programmes are nonviolent and educational．
D．	Teenagers don't like doing exercise at all．

(3)

What leads to social problems in Murray's opinion?
[　　]
A．	The lack of communication．
B．	Young people watching too much TV．
C．	So much violence on TV．
D．	Not enough exercise．

(4)

The underlined words “eye strain” in paragraph 4 probably means ________．
[　　]
A．	eye sickness
B．	blindness
C．	eye tiredness
D．	far-sightedness

(5)

We can infer from this passage that ________．
[　　]
A．	Murray is president of the British Parents Against Television Society
B．	Susan Taylor completely disagrees with Murray on TV
C．	there are both good and bad programmes on TV
D．	Susan Taylor is a television producer

The ancient Romans sometimes punctuated like this: They·put·a·point·between·each·word·in·a·sentence. The word punctuation actually comes from this idea and the Latin word punctum, which means a prick(刺).

When the 5^th century arrived, there were just two punctuation marks: spaces and points. The space separated words and while the points showed pauses in reading. Then in the 13^th century, a printer named Aldus Manutius tried to standardize punctuation. He always used a period for a complete stop at the end of a sentence. He used a slash (/) to indicate a short pause. Over time, that slash was shortened and curled, and it became the modern comma.

Since that time, other marks have enlarged the punctuation family. The exclamation mark comes form the Latin word xt. It was originally formed by putting an upper-case(大写字母) I on the lower-case xt. The Latin word xt means “exclamation of joy.” The question mark originally started out as the Latin word question, meaning question. Eventually, scholars put it at the end of a sentence to show a question. Over time, it became a symbol formed by putting a lower-case q on an o.

Punctuation is still changing today. New marks are coming into existence, and old punctuation marks are used in new ways. Take for example, the “interrobang.” This 1962 invention combines the question mark and exclamation mark for times when writers want both. For example, “She did what??” or “How much did you pay for that dress??” Obviously, the interrobang is not widely used or recognized – yet. But its invention shows that English is not yet finished with its punctuation.

Which of the following is a comma?

A. , B. : C. ; D. !

What’s the first paragraph mainly about?

A. The history of punctuation.

B. The introduction of punctuation.

C. The very beginning of punctuation.

D. The ancient Greek way of writing without punctuation.

Please put the following events in the order they happened.

a. The exclamation mark and question mark came into the punctuation family.

b. Comma came into existence.

c. Romans put a dot between words to separate words.

d. A period was used to end a sentence.

e. The “interrobang” was invented.

A. cbdae B. dcbae C. dbcea D. cdbae

What is the most possible situation for “She did what??”?

A. You are told she gave her baby boy a good beat.

B. You are wondering what she did to save the poor boy.

C. You want to know what she did for a living after fleeing to a foreign country.

D. You demand someone else tell you what in the world happened to her.

According to the article, we learn ________.

A. punctuation didn’t come into being until the 5^th century.

B. no one can really tell what new marks we may have in the future.

C. the invention of “interrobang” is a failure since it is not widely used.

D. both the exclamation mark and the question mark come from Greek words.

CANYOUIMAGINEHOWHARDITWOULDBETOREADSENTENCESLIKETHIS? The ancient Greeks wrote this way. The lack of punctuation marks(标点符号) probably didn’t bother good readers, though. As they read, they just put pauses where they fit best. Also at this time, sentences switched directions. A sentence read from left to right. The next one read right to left, and then left to right again, etc.
The ancient Romans sometimes punctuated like this: They·put·a·point·between·each·word·in·a·sentence. The word punctuation actually comes from this idea and the Latin word punctum, which means a prick(刺).
When the 5^th century arrived, there were just two punctuation marks: spaces and points. The space separated words and while the points showed pauses in reading. Then in the 13^th century, a printer named Aldus Manutius tried to standardize punctuation. He always used a period for a complete stop at the end of a sentence. He used a slash (/) to indicate a short pause. Over time, that slash was shortened and curled, and it became the modern comma.
Since that time, other marks have enlarged the punctuation family. The exclamation mark comes form the Latin word xt. It was originally formed by putting an upper-case(大写字母) I on the lower-case xt. The Latin word xt means “exclamation of joy.” The question mark originally started out as the Latin word question, meaning question. Eventually, scholars put it at the end of a sentence to show a question. Over time, it became a symbol formed by putting a lower-case q on an o.
Punctuation is still changing today. New marks are coming into existence, and old punctuation marks are used in new ways. Take for example, the “interrobang.” This 1962 invention combines the question mark and exclamation mark for times when writers want both. For example, “She did what?” or “How much did you pay for that dress?” Obviously, the interrobang is not widely used or recognized – yet. But its invention shows that English is not yet finished with its punctuation.
【小题1】Which of the following is a comma?

【小题2】What’s the first paragraph mainly about?

A．The history of punctuation.

B．The introduction of punctuation.

C．The very beginning of punctuation.

D．The ancient Greek way of writing witho

ut punctuation.

【小题3】Please put the following events in the order they happened.
a. The exclamation mark and question mark came into the punctuation family.
b. Comma came into existence.
c. Romans put a dot between words to separate words.
d. A period was used to end a sentence.
e. The “interrobang” was invented.

【小题4】What is the most possible situation for “She did what?”?

A．You are told she gave her baby boy a good beat.

B．You are wondering what she did to save the poor boy.

C．You want to know what she did for a living after fleeing to a foreign country.

D．You demand someone else tell you what in the world happened to her.

【小题5】 According to the article, we learn ________.

A．punctuation didn’t come into being until the 5^th century.

B．no one can really tell what new marks we may have in the future.

C．the invention of “interrobang” is a failure since it is not widely used.

D．both the exclamation mark and the question mark come from Greek words.

It is 4 o’clock in the early morning. Everything but the computing room on the campus of the university appears as quiet and misty as the mysterious hell. In the computing room, 30 students with sleepy eyes, sit still at their desk, beating the dirty and worn keys. Staring at the colorful screen, they tap continuously for hours. For the other parts in the world, it might be in the middle of the night, nevertheless here time represents nothing. It is an entirely enclosed field. These young computer “hackers” are tracing a sort of stimulus (刺激), a drive so exciting and absorbing that it ignores nearly anything else in their lives and becomes the focus of their being. They are addicted (上瘾的) computer programmers. Some of these students have been glued to the console (电子设备的操纵台) for no less than twenty hours even with no break for meals or rest. Some have been sleeping on sofas and chairs in the computing room, trying to struggle for a few moments’ rest but hating to get too far away from their addicted machines.

It is not necessary for most of these students to be at the computing room in the middle of the night. What they are working belong to no assignments. They remain there because they desire to be — they can not resist the attraction of the computers.

Furthermore, they are in groups instead of being alone. There are hackers at computing rooms all over the country. In the unimaginable way, they focus on nothing but computer. They escape from schooling and live beyond friendship; they might have difficulty being employed, choosing to travel from one computing room to another. They may even give up personal health.

“There is one hacker in my memory. We actually had to lift him away from his chair to feed him and arrange him to rest and sleep. We truly worried about his health,” says a computing science professor at California University.

Professors of computer science are nowadays paying more attention to this hacker phenomenon and are on the watch for future hackers and more and more severe computer addicts. They believe firmly that hackers are not simply resulted from the close relationship with a machine. It is the result of social relationship with the attractive thinking machines, which are becoming nearly universal.

1.We can learn from the passage that those at the computing room in the middle of the night are .

A. students working on a program

B. students using computers to amuse themselves

C. hard-working computer science majors

D. students deeply fascinated by the computer

2.Which of the following is NOT true of those young computer “hackers”?

A. Most of them are top students majoring in computer programming.

B. For them, computer programming is the only purpose for their life.

C. They can stay with the computer at the computing room for nearly two days.

D. Their love for the computer is so deep that they want to be near their machines even when they sleep.

3.It can be reasonably inferred from the passage that ______.

A. the hacker phenomenon exists only at university computing rooms

B. it is not very easy for the “hackers” to find friends or jobs

C. university computing rooms are expecting outstanding programmers out of the “hackers”

D. the hacker phenomenon is partly due to the lack of the computing rooms

4.According to professors of computer science, the hacker phenomenon can be described as .

A. positive B. disgusting

C. worrying D. admiring

5.Which of the following may be the most appropriate title for the passage?

A. The Charm of Computer Science B. A New Type of Electronic Toys

C. Future Computer Programmers D. Computer Addicts

Punctuation is still changing today. New marks are coming into existence, and old punctuation marks are used in new ways. Take for example, the “interrobang.” This 1962 invention combines the question mark and exclamation mark for times when writers want both. For example, “She did what‽” or “How much did you pay for that dress‽” Obviously, the interrobang is not widely used or recognized – yet. But its invention shows that English is not yet finished with its punctuation.

1.Which of the following is a comma?