题目内容

9.Let's face it.No one drinks diet sodas for the taste.People drink diet sodas in the hope that it will help them lose weight or at least keep them from gaining it.Yet it seems to have exactly the opposite effect,according to a new study.
Researchers from the University of Texas said those who drank two or more diet sodas a day had waist size increases that were six times greater than those who didn't drink diet sodas."What we saw was that the more diet sodas a person drank,the more weight they were likely to gain,"said Sharon Fowler.
The study was based on data from 474participants in a large,ongoing research project,where the participants were followed for nearly 10years.
While the findings are surprising,they also offer some explanations.
Nutrition expert,Melanie Rogers,who works with overweight patients in New York,has found that when patients are switched from regular to diet sodas,they don't lose weight at all."We weren't seeing weight loss necessarily,and that was confusing to us,"said Rogers.
So why would diet soda cause weight gain?No one knows for sure yet,but it could be that people think they can eat more if they drink diet sodas,and so over-compensate for the missing calories.
A related study found some sweeteners (甜味剂)raised blood sugar levels in some mice."Data from this and other potential studies suggest that the promotion of diet sodas and artificial sweeteners may be risky,"said Helen P.Hazuda,professor at School of Medicine of the University of Texas."They may be free of calories,but not of consequences."

25.People drink diet sodas toC.
A.enjoy its taste        
B.stay in fashion
C.achieve weight loss   
D.gain more energy
26.We can learn from the passage thatB.
A.regular sodas make people lose more weight
B.diet soda drinkers tend to eat more food
C.diet sodas do help reduce calories
D.most blood diseases come from diet sodas
27.The underlined word"They"in the last paragraph probably refers to"B".
A.sweeteners
B.diet sodas and artificial sweeteners
C.sodas
D.diet soda drinkers and sweetener takers.

分析 本文是科教类文章,主要讲述了人们为了减肥而喝苏打水,可是最新的研究却表明:喝苏打水不仅不能让人减肥,反而可能让人更胖,并分析了原因.

解答 25.C.细节理解题.根据第一段中的"Peopledrink diet sodas in the hope that it will help them lose weight…"可知,人们喝苏打水是为了减轻体重,故选C.
26.B.推理判断题.根据倒数第二段中的"…they can eat more if they drink diet sodas…"可知,如果他们喝苏打水,人们认为他们可以吃得更多,所以喝苏打水的人倾向于吃更多的食物.故选B. 
27.B.词义猜测题.此处是承接上一句中的内容,可知They 指代前面提及的dietsodas and artificial sweeteners.(苏打水和人造甜味剂).故选B.

点评 本文是科技类阅读,主要考查细节理解题和推理判断题.在做细节理解题时,首先根据题目要求迅速在文章里找出相应的段落、句子或短语.认真比较选项和文中细节的区别,在做推理判断题时不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.

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The next time you go grocery shopping, try speaking to other customers. One summer day, I took a smile and a warm heart into a small store in Oregon and got far more than groceries.

I love fresh produce(农产品) in the store, and not just for the amazing colors provided by summer's bounty (慷慨) or the chance to joy over new choices from other countries. It's also because I just love watching people pick their produce.

The day I was there I found a sale on amazing cherry tomatoes—along with a woman in her late 70s. Despite the fact that we were strangers, we began to discuss apples. She noted a problem with the Pink Ladies. "They tasted like I was eating an unripe green apple from the tree," she said, twisting her face as if still tasting the sour apple.

I wondered if this is something most of my generation can even remember doing. I surely do. I mentioned that I often could not resist the green yet tempting fruit swinging from an apple tree. This was the start for a series of discussions as we shopped-covering such topics as nutrition, new foods and the quality of produce.

By this time a third woman had joined in our conversation. The three of us continued along, unexpected friends, chatting about family size and the troubles a mom might have serving healthful foods that please the whole family.

Eventually we all went our separate ways, but in the dairy(奶制品) section I heard a small voice say, "I finally caught up with you." It was the first woman I'd talked to, extending a bag of apricots(杏) to me. "I don't know if your family will eat these," she added, "but they have a super deal on them."

Again I was brought back to my childhood, when I also ate apricots straight from the tree. My mouth watered at the remembered flavor.

The old lady didn't realize that she'd given me far more than produce. With that offering came a sense of community, a flashback to days when it was OK to talk to a stranger. She brought back memories of summer fruits right from the tree—and a feeling that somehow those apricots were a thank-you for sharing my time with her in a very unlikely place.

1.One reason the author likes fresh produce in grocery shop is that ________.

A. she enjoys observing people selecting fresh produce

B. she likes watching people tasting fresh produce

C. she produces fresh produce herself

D. she sells fresh produce herself

2.What might be the problem with the Pink Ladies noted by the old lady?

A. Their price was too high.

B. Their color was too green.

C. Their taste was too sour.

D. Their size was too small.

3.Why did the old lady bring a bag of apricots to the author?

A. She found the apricots were on sale in the shop.

B. She learned that the author wanted to buy apricots.

C. She wanted to send the apricots as a gift to the author.

D. She knew that the author's family liked eating apricots.

4.According to the author, what is the extra value of grocery shopping?

A. It adds flavor and color to her boring daily life.

B. It helps her to see the importance of family life.

C. It gives her a chance to learn about nutrition knowledge.

D. It brings her unexpected friendship and sweet memories.

17.Frozen fruit and vegetables can be healthier,with higher levels of vitamins and cancer fighting antioxidants (抗氧化剂),that leafy"fresh"produce.Two independent studies found more beneficial nutrients in everything from frozen broccoli florets to carrots.In two out of three cases frozen fruit and vegetables scored better on antioxidant-type compounds(化合物).Consumption of these antioxidant compounds is considered beneficial in preventing cancer and supporting the wording of the body,brain,skin and eyes.
Produce bought from the supermarket greengrocer sections is full of color,while many stores even use fine mist sprays (喷剂)to give a just picked look.This supermarket theatre convinces shoppers to pay an extra payment for food that they believe is good for their family's health as well as being tasty.However,the reality is that these vegetables and fruit may well have been held in storage for a month,while they then sit in the fridge at home for days before being eaten.
Over the days,they gradually  deteriorate,slowly losing some of the nutrients associated with leafy greens and fruit.By contrast,frozen vegetables and fruit are chilled(冷藏)soon after harvest and so keep higher levels of vitamins and antioxidants until they are eaten.
Two teams,one from Leatherhead Food Research and the other from the University of Chester,carried out 40tests to measure nutrient levels in produce which had been sitting in a fridge for three days and the frozen equivalent (相等物).The findings show that eating newly picked produce is the healthiest option; however,frozen food can be almost as good and is often better than items sold as"fresh".Leatherhead's Dr Rachel Burch said:"We must ignore the mistaken opinion that fresh food is always better for us than frozen food."
These results show that frozen food can be nutritionally comparable to fresh produce.Direct comparison:In two out of three cases frozen fruit and vegetable scored better on antioxidant-type compounds including Vitamin C,polyphenols and anthocyanins (多酚和花青素),a study found.Her team found frozen broccoli had higher levels of Vitamin C.However,fresh food scored better on polyphenols,which are thought to help prevent cancer.
32.What does the passage mainly tell us?D
A.Fresh food is better than frozen food
B.Frozen food might cause cancer.
C.Frozen food is as good as fresh food
D.Frozen food is better than"fresh"food.
33.Why do some supermarkets spray fine mist on fruit and vegetables?C
A.To keep them in good quality
B.To make them taste good.
C.To make them look fresh
D.To make them sell cheaply.
34.What does the underlined word"deteriorate"in Paragraph 3mean?A
A.Grow worse
B.Grow better.
C.Remain the same
D.Die out.
35.What is more helpful in preventing cancer?C
A.Vitamin C
B.Frozen fruit and vegetables.
C.Fresh fruit and vegetables
D.Anthocyanins.
4.Australian scientists are trying to give kangaroo-style stomachs to cattle and sheep in order to cut the greenhouse gases they send out,which are thought to be responsible for global warming.
Thanks to special bacteria in their stomachs,kangaroo flatulence(肠胃气胀)contains no methane(甲烷)and scientists want to transfer that bacteria to cattle and sheep who produce large quantities of the harmful gas.
While the usual image of greenhouse gas pollution is a huge chimney pushing out carbon dioxide,animals at home contribute a surprisingly high percentage of total emissions in some countries."Fourteen percent of emissions from all sources in Australia is from methane from cattle and sheep,"said Athol Kleve,a senior research scientist with the Queensland state government.
And if you look at another country such as New Zealand,which has got a much higher agricultural base,they're actually up around 50percent,"he said.
Researchers say the bacteria also make the digestive process much more efficient and could potentially save millions of dollars in feed costs for farmers.But it will take researchers at least three years to isolate (分离) the bacteria,before they can even start to develop a way of transferring it to cattle and sheep.
Another group of scientists,meanwhile,has suggested Australians should farm fewer cattle and sheep and just eat more kangaroos.People are still arguing about this,but about 20percent of health-conscious Australians are believed to eat the national symbol already."It's low in fat,it's got high protein levels and it's very clean in the sense that basically it's the free-range (放养的) animal,"said Peter Amp of the University of New South Wales's institute of environmental studies.

28.Scientists try to give kangaroo-style stomachs to cattle and sheep toB.
A.help them fight against different diseases.
B.reduce the amount of greenhouse gases.
C.get rid of the bacteria in their stomachs.
D.protect them from quantities of harmful gas.
29.The advantage of transferring the bacteria to cattle and sheep is thatC.
A.it will take the researchers a long time.
B.cattle and sheep will eat more than usual.
C.it will help the farmers to save money.
D.the bacteria will make them grow quickly.
30.From this passage we can infer thatA.
A.scientists still don't know how to transfer the bacteria to cattle and sheep.
B.people in Australia depend on kangaroos for food at the present time.
C.14% of the greenhouse gases in New Zealand is from cattle and sheep.
D.nobody in Australia will be allowed to farm cattle and sheep in the future.
1.At first sight the planet Mars(火星)does not appear very welcoming to any kind of life.It has very little oxygen and water,the temperature at night is below 50degrees and winds of 100miles (161kilometers)per hour cause severe dust storms.However,the surface of the planet seems to show that water flowed across it at some time in the past,and it is believed that there would be enough ice at the poles to cover the planet with water if it melted.Although there is no life on the Mars now,some scientists think there may have been some form of life a long time ago.At that time,the planet had active volcanoes(火山); the atmosphere was thicker and warmer; and there was water.In fact,in some ways the Mars may have been similar to the Earth,where life exists.
Some people believe that the Mars could support life in the future if the right conditions were produced.The first step would be to warm the planet using certain gases which trap the Sun's heat in the planet's atmosphere.With warmth,water and carbon dioxide(二氧化碳),simple plants could begin to grow.These plants could slowly make the Mars fit to live on.It is judged that the whole process might take between 100,000and 200,000years.In the meantime,people could begin to live on the planet in a special closed environment.They would provide a lot of useful information about conditions on Mars and the problems connected with living there.

33.According to the passage,the planet Mars has noAon it.
A.animals        
B.mountains          
C.dust       
D.winds
34.What is the topic of Paragraph 2?C
A.Certain gases should be used to warm Mars.
B.Plants should be grown to make Mars fit to live on.
C.Mars could support life with right conditions in the future.
D.People could live on Mars in a special closed environment.
35.The most suitable title for the passage isD.
A.No Life on Mars                   
B.A Study of Mars
C.The Future conditions on Mars        
D.The Possibility of Life on Mars.
18.Many a young person tells me he wants to be a writer.I always encourage such people,but I also explain that there's a big difference between"being a writer"and writing.In most cases these people are dreaming of wealth and fame,not the long hours alone at a typewriter."You've got to want to write,"I say to them,"not want to be a writer."
The reality is that writing is a lonely,private and poor-paying thing.For every writer kissed by fortune there are thousands more whose wishes are never rewarded.When I left a 20-year job in the U.S.Coast Guard to become a freelance writer,I had no hopes at all.What I did have was a friend who found me my room in a New York apartment building.It didn't even matter that it was cold and had no bathroom.I immediately bought a used typewriter and felt like a real writer.
After a year or so,however,I still hadn't got a break and began to doubt myself.It was so hard to sell a story that I hardly made enough to eat.But I knew I wanted to write.I had dreamed about it for years.I wasn't going to be one of those people who die wondering:What if?I would keep putting my dream to the test even though it meant living with uncertainty and fear of failure.This is the shadow(阴影)land of hope,and anyone with a dream must learn to live there.

33.The passage is meant toB.
A.encourage young people to seek good jobs
B.warn young people of the suffering a successful writer has to experience
C.show young people it's unrealistic for writers to seek wealth and fame
D.advise young people to give up their idea of becoming a writer
34.Why did the author begin to doubt himself after the first year of his writing work?D.
A.He wasn't able to have a rest for a whole year.
B.He wasn't able to produce a single book.
C.He found his dream would never come true.
D.He hadn't seen a change for the better.
35.What can be concluded from the passage?C.
A.Famous writers usually live a poor and lonely life.
B.Writers often find their work interesting and rewarding.
C.The chances for a writer to become successful are small.
D.A writer's success depends on luck rather than on efforts.
19.From bankers to factory staff,employees in the West face a cold prospectof losing their jobs as a global recession(衰退) starts to bite.For colleagues in the East,the pain is more likely to come through a pay cut.
Human resource experts say cultural differences explain why Asian companies try harder to preserve jobs in difficult times,which will prevent unemployment and may help Asian economies survive at a time of slowing exports.The East Asian attitude may also make it easier for companies to recover quickly from the economic downturn since they will not need to rehire or train new staff,but build up a more loyal and devoted group.
"In the Confucian mindset(儒家思想),the right thing to do is to share the burden,which is the sense of collective(集体的) responsibility.While in the West,it's more about individual survival,"said Michael Benoliel,associate professor of organizational behavior at Singapore Management University (SMU).
In contrast,local Western companies from General Motors to Goldman Sachs plan to lay off workers by the thousands,but at the Asian units of Western multinationals or western units of Asian groups,job cuts will probably be less severe.
Japan's jobless rate was 4 percent in September,up from 3.8 percent in January,while Hong Kong's was flat at 3.4 percent.But US unemployment is expected to have jumped to 6.3 percent last month from below 5 percent in January.
Experts say that while there are noticeable differences in labor practices in East and West,the gap will narrow as more firms become more multinational and competition forces firms to adopt the best practices of rivals from abroad.
36.The underlined word"prospect"in the first paragraph most probably meansCA.weather      B.scene     C.future      D.place
37.Compared with job cuts,pay cuts can bring the following benefits EXCEPT thatB   
A.it's helpful to the economy recovery
B.it costs the company less money to survive
C.it will keep the experienced and skilled workers
D.it can form a team working harder and more loyally
38.According to Michael Benoliel,the Confucian mindset focuses onB.
A.human rights        
B.sharing responsibility
C.personal profits      
D.individual survival
39.In which company can we infer the job cuts will be probably the most severe?A
A.A local American group.
B.A small Japanese company.
C.A German branch of a Korean multinational.
D.A Hong Kong's unit of a French company.
40.The passage mainly tells usD
A.the difficulties all the companies around the world will meet with today
B.the cultural differences between Eastern and Western world at present
C.the ways to cut down the cost of the companies in economic downturn
D.the different labor solutions of Asian and Western in global recession.

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