The need to feed a growing population is putting much pressure on the world’s supply of water. With 97% of the world’s water too salty to be drunk or used in agriculture, the worldwide supply of water needs careful management, especially in agriculture. Although the idea of a water shortage seems strange to someone fortunate enough to live in a high rainfall country, many of the world’s agricultural industries experience constant water shortages.

Although dams can be built to store water for agricultural use in dry areas and dry seasons, the costs of water redistribution (重新分配) are very high. Not only is there the cost of the engineering itself, but there is also an environmental cost to be considered. Where valleys are flooded to create dams, houses are lost and wildlife homes destroyed. Besides, water may flow easily through pipes to fields, but it cannot be transported from one side of the world to the other. Each country must therefore rely on the management of its own water to supply its farming requirements.

This is particularly troubling for countries with agricultural industries in areas dependent on irrigation. In Texas, farmers’ overuse of irrigation water has resulted in a 25% reduction of the water stores. In the Central Valley area of southwestern USA, a huge water engineering project provided water for farming in dry valleys, but much of the water use has been poorly managed.

Saudi Arabia’s attempts to grow wheat in desert areas have seen the pumping of huge quantities of irrigation water from underground reserves. Because there is no rainfall in these areas, such reserves can only decrease, and it is believed that fifty years of pumping will see them run dry.

1..

. From the first two paragraphs we learn that __________.

A. much of the world’s water is available for use

B. people in high rainfall countries feel lucky

C. water can be easily carried through pipes across the world

D. the costs of water redistribution should be considered

2..

. Which of the following is true?

A. The underground water in Saudi Arabia might run out in 50 years.

B. Most industries in the world suffer from water shortages.

C. The water stores in Texas have been reduced by 75%.

D. Good management of water use resulted from the project in the Central Valley.

3..

 The text is mainly about __________.

A. water supply and increasing population

B. water redistribution and wildlife protection

C. water use management and agriculture

D. water shortages and environmental protection

4..

. What is most likely to be discussed in the paragraph that follows?

A. Approaches to handling the pressure on water supply.

B. Ways to reduce the costs of building dams.

C. Measures to deal with worldwide water shortages.

D. Steps to improving water use management.

 

【答案】

 

1..D

2..A

3..C

4..D

【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： 題型：閱讀理解

Gay marriage, and especially gay parenting, has been in the cross hairs in recent days.

On Jan.6, Rick Santorum told a New Hampshire audience that children are better off with a father in prison than being raised in a home with lesbian parents and no father at all. And last Monday(Jan.9), Pope Benedict called gay marriage a threat “to the future of humanity itself”, citing the need for children to have heterosexual homes.

But research on families headed by gays and lesbians doesn’t back up these above views. In fact, in some ways, gay parents may bring talents to the table that straight parents don’t.

Gay parents “tend to be more motivated, more committed than heterosexual parents on average, because they chose to be parents.” Said Abbie Goldberg, a psychologist at Clark University who researches gay and lesbian parenting. Gays and lesbians rarely become parents by accident, compared with an almost 50 percent accidental pregnancy rate among heterosexuals, Goldberg said. “That translates to greater commitment on average and more involvement”.

And while research indicates that kids of gay parents show few differences in achievement, mental health, social functioning and other measures, these kids may have the advantage of open-mindedness, tolerance and role models for equal relationships, according to some research. Not only that, but gays and lesbians are likely to provide homes for difficult-to-place children in the foster system, studies show.

Children of gay parents also show less care about gender difference. That’s likely because gays and lesbians tend to have more equal relationships than straight couples, Goldberg said.

“Men and women felt like they were free to pursue a wide range of interests,” Goldberg said. “Nobody was telling them, ‘Oh, you can’t do that, that’s a boy thing,’ or That’s a girl thing.”

61.The underlined phrase “in the cross hairs”(in Paragraph 1) probably means.

A.a great concern         B.a big threat      C.a political ban      D.a role model

62.It can be learned from the passage that Rick Santorum___.

   A.opposes the need for children to have heterosexual homes

   B.thinks children are better off with a father in prison

   C.believes children are better off in heterosexual homes

   D.is in favor of children being raised by lesbian parents

63.From Abbie Goldberg’s words, we can learn that____.

 A.Most heterosexual parents have children by accident

 B.Gays and lesbians consider carefully before becoming parents

C.Heterosexual parents are not committed in the marriage

D.There’s no gender difference in gay and lesbian parenting

64.From the passage, we can infer that___.

   A.Children of gay parents are more talented

   B.Gay parents like adopting poor children

   C.Children of gay parents may enjoy more freedom

   D.Gay parents show no difference in social functioning

65.Which of the following is the advantage of kids of gay parents?

   A.Tolerance .        B.More talents.   C. Achievement.      D.Mental health.

查看答案和解析>>

科目：高中英語 來源：2013屆廣東省新興縣惠能中學(xué)高三第五次月考英語試卷（帶解析） 題型：閱讀理解

As a senior, my future is always on my mind. To be exact, thoughts of the future have kept me up countless nights and made me worry enough to do poorly on more than one test. Because of this, words of wisdom are a source of comfort. Steve Jobs gave a speech to Stanford’s graduating class in 2005 and his words resound repeatedly in my mind whenever I think about my future.
It wasn’t always like that, though. It started when I became a junior, when college came into view. It’s the first big step to making your life your own. So when Jobs discussed his life as a student, some fears were eased. He, too, felt the need to attend college to make something of himself. He faced what many are extremely afraid of: uncertainty. His lack of understanding caused him to stop attending college and focus on what he felt was important. His story had a happy ending, of course, since he certainly turned out well.
This doesn’t mean that students shouldn’t attend college, but rather that they shouldn’t worry so much. You’ll get where you need to go, even if your path is a bit more winding（蜿蜒的）than you’d like.
Jobs talked about the hardships in his work. His love of his work helped him carry on and he got where he was meant to be, which restates the point: don’t panic.
One particular part of his speech stayed with me. Steve Jobs quoted（引用）the saying “Stay hungry, stay foolish” and it has become my motto. Staying foolish is realizing that you are still a fool, no matter how much you’ve learned or experienced. There is always more to explore. Staying hungry is wanting to find those things about which you are still uneducated.
Steve Jobs’s level of success is attainable, and I aim to prove that. With the will power to go into the world living every day like it’s my last and allowing the future to take care of itself, I will do great things. In the last moments of my life, I’ll be proud of what I have done and hope to have all the wisdom a person could wish for.
【小題1】The author felt worried when _________.

A．he had to take tests at school
B．he thought about his future
C．he had lots of sleepless nights
D．he searched for words of wisdom
【小題2】It is suggested in Paragraphs 1 and 2 that _________.
A．Steve Jobs didn’t attend college
B．Steve Jobs failed because of his decision
C．the author is a college student
D．the author cares much about his future
【小題3】What did the author gain from Jobs’s speech?
A．Courage to drop out of school.
B．Confidence in defeating Jobs.
C．Interest in computer industry.
D．Bravery to face uncertainties.
【小題4】What did NOT Steve Jobs encourage students to do in his speech?
A．Have the desire to learn more.
B．Be content with what they know.
C．Stay calm in the face of hardships.
D．Be modest so as to learn more.
【小題5】The passage is mainly about _________.
A．the wisdom drawn from a speech
B．the most impressive quote in life
C．a(chǎn) memorable meeting with Jobs
D．a(chǎn)n experience of a speech

查看答案和解析>>

科目：高中英語 來源：2012-2013學(xué)年陜西渭南希望高級(jí)中學(xué)高一下期期末考試英語卷（帶解析） 題型：閱讀理解

HONG KONG — Hong Kong Disneyland is too crowded, a senior Chinese tourism official said today, hinting that another Disney Park is necessary to accommodate demand from China’s huge population.
The comments by Shao Qiwei, director of China’s State Administration of Tourism, came a day after Shanghai’s mayor Han Zheng said the city was preparing to build China’s second Disney theme park.
“China has a very large population. We now have 1.3 billion people. The market is very large. As far as I know, Hong Kong Disneyland is now very crowded,” said Shao, whose comments were broadcast on Hong Kong’s Cable TV.
The Hong Kong theme park, which opened in September, was widely criticized in January when it turned away hundreds of Lunar New Year holiday makers from mainland China because the park was full. Chaos(混亂) erupted when angry crowds tried to force their way into the park.
The embarrassing incident prompted a public apology from Hong Kong Disneyland Managing Director Bill Ernest and a dressing down from Hong Kong’s leader Donald Tsang. Authorities are carefully studying the issue of overcrowding in preparation for the possible building of the Disney park in Shanghai, Shao said.
The official Xinhua News Agency reported Tuesday that no agreement has been reached on the park in Shanghai, quoting senior vice president of Walt Disney Parks and Resorts, Leslie Goodman. Hong Kong Disneyland is a joint venture between The Walt Disney Co. and the local government, which shouldered the bulk of the park’s construction fees.
【小題1】Why is it necessary to build a Disney park in Shanghai?

A．Hong Kong Disneyland can’t meet the need of the large population.
B．Hong Kong Disneyland is too small and very crowded.
C．Hong Kong Disney Park was criticized by tourists.
D．Hong Kong Disneyland is far from the mainland.
【小題2】Hundreds of visitors from Mainland China got angry because ________.
A．the services in the park were not as good as expectedB．they were not allowed to go into the park
C．the park was too crowdedD．chaos happened at the entrance to the park
【小題3】The building of a Disney park in Shanghai ________.
A．has been agreed to by The Walt Disney Co.
B．is financed The Walt Disney Co.
C．will be in the charge of the Shanghai government
D．remains to be discussed with The Walt Disney Co.

查看答案和解析>>

科目：高中英語 來源：2012屆山東濰坊市高三下學(xué)期考前仿真模擬（三）英語試卷（帶解析） 題型：閱讀理解

閱讀下面短文并回答問題，然后將答案寫到答題卡相應(yīng)的位置上(請(qǐng)注意問題后的字?jǐn)?shù)要求)。

Each and every one of us is responsible for the greenhouse        nts should the need arise-as it almostpected, and is prepared to   tion, something comes along to gases we give out in our daily actions and choices．Therefore，combating climate change is going to take the combined efforts of everyone on the planet．
The average household carbon footprint in China is 2.41 tons of carbon dioxide annually．That's enough to fill half an Olympic swimming pool．
Surprised? Well,．here's how you can work to reduce it：
1．Take showers rather than baths and reduce your shower time by two minutes．This will save water and give you an extra two minutes in bed．
2．Don't purchase unnecessary clothes，and be careful about the materials you buy．Wool and cotton have a really high greenhouse gas impact．Manmade fibers are a better choice．
3．Try to buy high-quality，long-lasting products even though they    ．A laptop is more efficient than a desktop，and a small screen TV is better than a big flat-screen．
4．Only turn the water heater on when necessary，and adjust temperature controls to avoid overheating．Put a lid on a pan when boiling water．
5．When using the washing machine，be sure there's a full load and turn the temperature down if it's not really dirty．
6．The greediest home device along with the washing machine is the fridge．Make sure it's as efficient as possible by keeping it out of direct sunlight and away from the oven or heater．Don't put food in when it's still warm．
7．Only buy the amount of food you need and if there are leftovers，get creative．For instance，make them into a soup．Ask to take food home from restaurants if there's some left，but remember to take your own container to avoid using a disposable carton．
【小題1】How does the author introduce the topic of the text?(no more than 5 words)
                                                                         
【小題2】Fill in the blank in Paragraph 6 with proper words．(no more than 5 words)
                                                                         
【小題3】Why do we keep the fridge out of direct sunlight?(no more than 5 words)
                                                                         
【小題4】What does the author say about leftovers?(no more than 14 words)
                                                                         
【小題5】What is the main idea of the text?(no more than 6 words)
                                                                         

查看答案和解析>>

科目：高中英語 來源：2012-2013學(xué)年遼寧省協(xié)作體高三領(lǐng)航高考預(yù)測(cè)（七）英語試卷（解析版） 題型：信息匹配

根據(jù)短文內(nèi)容，從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)，選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。

The Value of Tears

Tears can ruin make-up, bring conversation to a stop, and give you a runny nose. Tears leave you embarrassed and without energy. Still, crying is a fact of life, and your tears are very useful. Even when you’re not crying, they make a film over the eye’s surface.  1

When tears fall, they reduce stress. But we tend to fight them for all sorts of reasons. “People worry about showing their emotions（情緒）, afraid that once they lose control they’ll never get it back.”  2  After we cry, the  feelings that caused the tears often disappear.

Sometimes people become much stressed and can’t cry. Whatever emotion they are feeling — shock, anger, fear, or sadness— is being held back.

But everyone has the need to cry. Psychologist Vera Diamond explains that her treatment often consists of giving people permission to cry.  3  Patients practice crying just to become used to expressing emotions. She suggests safe, private places to cry, like under the bedcovers or in the car. Crying is a way of ease tension, but people don’t like it when others cry because it makes them tense. 4  And they’ll do just about anything to make you stop.

In certain situations, such as at work, tears are not appropriate. It’s good not to cry during a tense business discussion.  5 You should also act out the whole situation again and be as noisy and angry as you like. It will help you feel better. “And,” she adds, “Once your tears have taken away the stress, you can begin to think calmly of ways to deal with the problem.”

Tears are a sign of our ability to feel. If you find yourself near someone crying, deal with it. And never be afraid to cry yourself.

A．They too may be holding back a need to cry.

B．They cry for different reasons.

C．She gives crying exercises.

D．It contains a chemical against infection（炎癥）.

E. The fact is no emotion lasts forever.

F. It forms in response to the stress on the surface of the eye.    

G. But once you’re safely behind closed doors, don’t just cry.

 

查看答案和解析>>

同步練習(xí)冊(cè)答案