进阶大学英语第五单元课后练习答案

Key to Exercises

Opener

1. The speaker is talking about the coming global water crisis/water problem.

2. Water is the key component in our daily life, not only for human use, but for energy, industry, agriculture, and livestock.

3. If you look at the earth, you will notice that over 75 % of our blue planet is water. But the problem is only 3% of that water is fresh water.

Transcript:

Today, according to UNICEF, at least 2.6 billion people lack adequate sanitation, while 1.1 billion people live without clean drinking water period. Water is the key component in all of our daily lives no matter where we live, not only for human use, but for energy, industry, agriculture, and livestock. Now if you look at the earth, you’ll notice that over 75% of our blue planet is water. The problem is only 3% of that water is fresh water.

Reading & Interacting

I. Understanding the Text

1. Text Organization

1.1

Paras. 1-2: We need to conserve water aggressively so that scientists can have time to find solutions.

Paras. 3-7: Water is going to be the most important and most contentious resource of the 21st century.

Paras. 8-9: There are solutions, but they take time.

Para. 10: Aggressive conservation is needed to buy us time before scientists find solutions.

1.2

1)Water is on the way to becoming the most important resource of the 21st century. Getting water right is the great challenge the world is confronted with. To meet the challenge conservation should come first; then follow it up with new solutions.

2)To introduce the water problem, the author tells us about what happened one night when he and his seven-year-old daughter were brushing teeth together. In so doing the author tries to introduce the reader to a serious topic in a casual manner. Besides, it also reminds us of the fact that everyone can play a role, even in our daily life, in saving water.

3)He cites the late Nobel Laureate Richard Smalley’s list of humanity’s top 10 problems for the next 50 years.

4)He wants to show the reader how difficult it is for us to find a solution to the water problem.

5)He repeats what he says at the beginning of the article: The water problem can be solved but “The scientists need time.”

2. Comprehension Check

2.1 Focusing on the main ideas

2.2 Digging into detail

1)He means that water is most likely to become a strategic resource like oil that could trigger

geopolitical conflict.

2)Because solving the energy and water problems will make the other problems easier to deal

with. Abundant energy and water supplies will increase food production and improve the

environment. They will also reduce poverty and disease, and so forth.

3)It most probably means energy produced at a low cost.

4)He means that every other sector of society needs water. People need water in their daily life.

Energy production requires water for cooling power plants. Industry needs water for all sorts of purposes. Agriculture needs water for irrigation.

5)Yes, he did. Because he said getting freshwater from saltwater at a cheap price would dwarf all

other scientific accomplishments.

2.3 Understanding difficult sentences

?1) A

?2) B

?3) A

?4) A

?5) A

II. Focusing on Language in Context

1. Key Words & Expressions

1.1

1.2

?1) around the corner

?2) The money from her uncle enabled Jenny ?3) dwarfs our old house

?4) on track

?5) and so forth

1.3

2. Confusable Words

2.1

2.2

3. Sentence Patterns

3.1

1.The fact that he has fully recovered from his bad accident shows that medicine can work wonders.

2.The reason (that) businesses are moving their plants to developing countries is that labor costs in their home countries are too high.

3.If we go on ignoring the fact that our rivers are running dry or being polluted, the consequences will not be hard to predict.

4.The reason (that) food prices are rising is that last year’s crop wasn’t good.

3.2

1.Whether the chicken came before the egg, or the egg before the chicken, is a question of how life began in general.

2.I saw her on the point of tears when she got the result of the exam. I don’t know whether we

should go to comfort her or just leave her alone.

3.It’s not clear whether she still wants to go to the lake or has changed her mind.

4.Many young married couples are wondering whether they should buy or just rent an

apartment.

4. Comprehensive Practice

Reading & Comprehending

Reading 1

1. Comprehension Check for Reading 1

?1) T

?2) F

?3) T

?4) F

?5) T

?6) T

?7) T

?8) T

?9) F

?10) T

2. Translation

1.地球的水只有不到3%是淡水，并且大部分都被堵在雪地和冰川中，不容易获取。

2.……但不幸的是，许多因素严重扰乱了淡水的流动和使用，使地球的许多地区出现大面积

的危机。

3.这意味着如果我们在保护水和明智用水方面无所作为，所有地区迟早都将遭遇水危机及随

之而来的影响。

4.绝不要以为你所处的社会先进，不至于会出现缺水问题。

Reading 2

Comprehension Check for Reading 2

1.Pollution and scarcity.

2.The sources of pollution include manufacturing emissions, poorly treated sewage, industrial

spills and agricultural runoff.

3.It means that the water problem did not happen overnight; instead it resulted from our age-old

practice of polluting water or wasting water in addition to natural contamination and natural disasters.

4.A sustainable, long-term solution.

Integrated Skills Practicing

I. Viewing & Listening

1)Segment 1

Consider the Aral Sea, for example, located in central Asia. The name Aral Sea is actually translated into “Sea of Islands”, referring to over 1,534 islands that once existed. Today the Aral Sea is down to 10% of its original size. The same thing is happening in other areas that were once flourishing (but) are now turning into desert.

2)Segment 2

In the U.S., the world’s largest body of freshwater, the Ogallala Aquifer, an underground lake that extends from the Colorado Rockies to South Dakota going all the way down to the Texas Panhandle with a range of 50 to 300 feet of depth. This water resource is what has made America’s plains the “bread basket” of the world. Unfortunately, like an oil well, this won’t last forever. The Ogallala used to have an average depth of 240 feet. Today its average depth is

just 80 feet.

3)Segment 3

What once was a booming town that relied on the Ogallala Aquifer, has now seen its depths of underground water fall between 0-50 feet. Many wells are completely dry and farmers have been forced to hand over their land to the government’s Conservation Reserve Program (CRP) in exchange for grants.

4)Segment 4

Consider the Colorado river as well, a river that used to run into the Pacific. Not anymore. By the time the water fills the pools of Vegas and irrigates and provides drinking water throughout the west, not a drop of water makes it to the ocean.

Transcript:

Today, according to UNICEF, at least 2.6 billion people lack adequate sanitation, while 1.1 billion people live without clean drinking water period. Water is the key component in all of our daily lives no matter where we live, not only for human use, but for energy, industry, agriculture, and livestock. Now if you look at the earth, you’ll notice that over 75% of our blue planet is water. The problem is only 3% of that water is fresh water. Over 260 river basins are shared by two or

more countries and most of these rivers are without defined legal or institutional arrangements. Consider the Aral Sea, for example, located in central Asia. The name Aral Sea is actually translated into “Sea of Islands”, referring to over 1,534 islands that once existed. Today t he Aral Sea is down to 10% of its original size. The same thing is happening in other areas that were once flourishing (but) are now turning into desert. A report titled “Avoiding Water Wars: Water Scarcity and Central Asia’s Growing Importance for Stability in Afghanistan and Pakistan” was recently done by the Senate Foreign Relations Committee. In it, it focused on rising water tensions that could destabilize central and south Asia. The implications of a water shortage has already caused aggravated demand for agriculture and power generation according to the report. Water, without a doubt, is going to be a huge issue along with oil throughout this century. In the U.S., the world’s largest body of freshwater, the Ogallala Aquifer, an underground lake that extends from the Colorado Rockies to South Dakota going all the way down to the Texas Panhandle with a range of 50 to 300 feet of depth. This water resource is what has made America’s plains the “bread basket” of the world. Unfortunately, like an oil well, this won’t last forever. The Ogallala used to have an average depth of 240 feet. Today its average depth is just 80 feet. Recently a story done in Texas, about a town named Happy, who has simply run out of water for its farms. What once was a booming town that relied on the Ogallala Aquifer, has now seen its depths of underground water fall between 0-50 feet. Many wells are completely dry and farmers have been forced to hand over their land to the government’s Conservation Reserve Program (CRP) in exchange for grants. The U.S. Department of Agriculture recently stated, “The supply is going to run out and the plains will become uneconomical to farm.” 60 years is what the U.S. Department of Agriculture gives it. This is a scary thought when you think about the way we have built cities, towns, and homes around something that is simply unsustainable. Consider the Colorado river as well, a river that used to run into the Pacific. Not anymore. By the time the water fills the pools of Vegas and irrigates and provides drinking water throughout the west, not a drop of water makes it to the ocean. Of course we can’t help but comment on how it is the government who has centrally planned people to live in the middle of nowhere, to live in deserts. If a free market would have reigned, we would see a much more practical living condition with very little “middle of the desert living,” not only relying on cheap oil, but the relocation of precious water. While researching the water crisis, https://www.sodocs.net/doc/c96600928.html, came across studies

about how in some places in Africa so much water has been pulled out of the ecosystem in order to bottle it and send it around the world, some towns have become deserts. As the world population grows, the water crisis will become front page news. According to the consulting company McKinsey & Company, by 2030 global water demand will be 40% greater than today’s “accessible, reliable, environmentally sustainable supply.” https://www.sodocs.net/doc/c96600928.html, members should have no doubt that this is 100% tied into agriculture and rising food price inflation. 71% of global water withdrawals today go to irrigating our food. The U.S. government has screwed us with subsidies that are handed out to farmers who plant in areas that need an excessive amount of water. Subsidies are also handed out in misguided attempts to turn food into fuel, something that in our opinion is not only driving food costs up, but is wasting precious water resources. Like oil, it takes water for many goods. A cotton T-Shirt, 400 gallons; denim jeans, 1,800 gallons; a car, 39,000 gallons; a board of lumber, 5.4 gallons; a barrel of beer, 1,500 gallons; a gallon of paint, 12 gallons; one ton of steel, 62,000 gallons; a piece of paper, 2.6 gallons. Consider how much water it takes to grow our food, feed our animals, and ourselves.

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Unit 2 Tales of True Love Key to Exercises Opener Suggested an swers for refere nee 1. Qian Zhongshu was a Chinese literary scholar and writer, best known for his wit and great academic kno wledge. One of his most famous no vels is Fortress Besieged（《围城》）.Yang Jia ng was a Chin ese playwright, author, and tran slator. Her memoir We Three （《我们仨》）recalls memories of her late husba nd, Qia n Zhon gshu, and her daughter, Qian Yuan, who died before her father. David Beckham is an English former professional footballer, and the first English player to win league titles in four coun tries: En gla nd, Spai n, the Un ited States and Fran ce. David is married to Victoria Beckham, an En glish bus in esswoma n, fashi on desig ner, model, and sin ger. They have four childre n. 2. Qian and Yang ' s romanee began when they met at Tsinghua University after Yang Jia ng en rolled in the graduate school in 1932. They married in 1935. David started dating Victoria in 1997, after she attended a charity football match. The couple announ ced their en gageme nt in 1998 and married in 1999. 3. During the Cultural Revolution, like many other prominent intellectuals of the time, Qian Zhon gshu and Yang Jia ng were “ sent dow n ” , doing “ reform through labor ” i a “ cadre school ” in Henan 1969fromto 1972. The challenge David and Victoria have come across is media attention. They are both famous, so their relati on ship has attracted a great deal of media atte nti on from its very beg inning.

大学英语第五单元答案

Part I Script Directions: Listen to the short dialogs, and then choose the correct answers to the questions. You will hear the recording twice. After the first playing, there will be time for you to choose the correct answers. Use the second playing to check your answers. 1.(Listen to the audio recording for the question.) A. Valentine's Day should be done away with. B. The man's girl friend is asking for too much. C. The man should buy gifts for his girlfriend. D. The man is poor. 2.(Listen to the audio recording for the question.) A. A housewife. B. A housekeeper. C. A President. D. It is not known. 3.(Listen to the audio recording for the question.) A. In the club. B. At Jane's home. C. In the national park. D. In the shopping mall. 4.(Listen to the audio recording for the question.) A. The cookies. B. The CD.