题目内容

13.With the crazy smog going on in China,businessmen are now ready to grope for your wallet."Smog economy"is stimulating a shopping spree on certain products against the terrible weather.Now let's see what we have on the list to help us through the crisis.
1.Masks
Well,I would say you had better stay indoors to save your lives.PM 2.5 just surged up to 750 in Beijing recently.3M just sold 220,000 masks of a kind.No.1 best-selling products!
2.Air purifiers
This kind of products is rarely seen in Chinese households in the past.They have become a necessity now.I do like these little gadgets,but they are just too expensive.
3.Oxygen inhalers
I didn't realize oxygen inhalers also get a cut in the smog economy.As a matter of fact,your oxygen uptake has nothing to with relieving (减轻) the impact of smog.It might even lead to oxygen poisoning when you inhale too much oxygen.So don't get greedy.
4.Salt lamps
Compared to oxygen inhalers,salt lamps are even worse.Some stores are selling the products at several hundred yuan,saying that they can release negative ions(离子),reduce radiation levels and purify the air.The lamps mainly contain sodium chloride.The boiling point of sodium is about 800 degrees centigrade and that of candle is 500.So how on earth can negative ions be released at only 500 degrees?
5.Plants that absorb smog
Yeah,right.Plants Vs Smog.It is scientifically justified (证明) that some plants do absorb pollutants from the air.Money plants and calla lilies are among the best-sellers in the market.Even if they don't work,it's good to have some plants in the house anyway.

43.According to the passage,smogA.
A.give some economic chances to businessmen
B.is very bad to economy
C.makes some crisis come out
D.have nothing to do with the economy
44.What is the meaning of the underlined word?D
A.Giving up shopping
B.Feeling down in shopping.
C.Having a lot to buy
D.Buying something enthusiastically.
45.Salt lamps are useless,becauseB.
A.it may cause poisoning
B.it actually can't release the negative ions
C.it reduces radiation level and makes the air dirty
D.the prize is very high
46.How many ways does the author think are useful?B
A.2.B.3.C.4.D.5.

分析 本文属于说明文阅读,作者通过这篇文章向我们介绍了雾霾天气给人们的健康造成危害,然而却给商家带来机会,作者例举了一些和大雾有关的产品,并一一说明它们的功能,以及是否真的对雾霾有用.

解答 43.A  细节理解题:根据文章第一段With the crazy smog going on in China,businessmen are now ready to grope for your wallet.可知大雾给商人带来了盈利的机会,故选A.
44.D  词义猜测题:根据第一段Smog economy"is stimulating a shopping spree on certain products against the terrible weather.可知"大雾经济"激发了人们的购买热情,由此可推知"spree"的意思是"热情的购买东西",故选D.
45.B  细节理解题:根据第五段So how on earth can negative ions be released at only 500 degrees?可知盐灯对我们是没有用的,因为它实际上并不能释放负离子,故选B.
46.B  细节理解题:通读全文可知作者认为口罩,空气净化器,和植物都是能够对大雾有用的,所以一共是3种,故选B.

点评 考查学生的细节理解和推理判断能力.做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确选择.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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4.Nowadays many people are concerned about the problem of what to do with electronic waste such as old televisions,computers,radios,cellular telephones and other electronic equipment.
Electronic trash,or e-waste,is piling up faster than ever in American homes and businesses.People do not know what to do with old televisions or computers so they throw them in the trash.
National Solid Waste Management Association (NSWMA) state programs director Chaz Miller says the large amount of electronic waste Americans product is not unexpected.
The US Environmental Protection Agency (EPA) estimates more than 400million consumer electronic items are dumped each year,and there is a push by more states to ban the waste from landfills (垃圾填埋场) and create recycling programs.They can be torn apart and sorted for useable parts.Mike Fannon who runs the plant in Baltimore says,"There are lots of valuable metals that can be recovered and reused instead of just putting them in the landfill,and in certain components there are some materials that should not really be in the landfill."
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This year several states like Vermont imposed a ban on electronic waste in landfills.More than 25other states have also adopted bans on e-waste in landfills.Chaz Miller says more can be done to boost electronic waste recycling.
"We can do much better,"noted Miller."I think clearly our goal should be to do as well as we do recycling newspapers."

32.Which of the following does NOT belong to e-waste?D
A.Old televisions.
B.Old computers.
C.Old cell phones.
D.Old newspapers.
33.Why is e-waste banned from landfills in many states?C
A.Because it can not be recycled.
B.Because the landfills are already full.
C.Because it might damage the environment.
D.Because it can be shipped to other countries.
34.According to Mike Fannon,what might be the best way of dealing with e-waste?A
A.Recycling it.
B.Selling it.
C.Burying it.
D.Breaking it.
35.What can we learn from the passage?B
A.Chaz Miller works for EPA.
B.Miller is optimistic about the future of e-waste.
C.At present,less than 10percent of e-waste is recycled.
D.All states in the US have banned e-waste from landfills.
1.If you think that running marathons will help you live a long and healthy life,new research may come as a shock.According to a recent scientific study,people who do a very strenuous workout are as likely to die as people who do no exercise at all.
Scientists in Denmark have been studying over 1,000joggers and non-joggers for 12years.The death rates from the sample group indicate that people who jog at a moderate pace two or three times a week for less than two and a half hours in total are least likely to die.The best speed to jog at was found to be about 5miles per hour.The research suggests that people who jog more than three times a week or at higher speeds of over 7mph die at the same rate as non-joggers.The scientists think that this is because strenuous exercise causes structural changes to the heart and arteries(动脉).Over time,this can cause serious injuries.
Peter Schnohr,a researcher in Copenhagen,said,"If your goal is to decrease risk of death and improve life expectancy,jogging a few times a week at a moderate pace is a good strategy.Anything more is not just unnecessary,and it may be harmful."
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32.The underlined word"strenuous"in Paragraph l is closest in meaning to"A".
A.hard    
B.regular
C.practical 
D.flexible
33.The author presents some figures in Paragraph 2toC.
A.suggest giving up jogging
B.show risks of doing sports
C.provide supportive evidence
D.introduce the research process
34.According to the scientists,why is too much exercise harmful?A
A.It may injure the heart and arteries.
B.It can make the body tired out.
C.It will bring much pressure.
D.It consumes too much energy.
35.What can be inferred from the text?D
A.No exercise at all is the best choice.
B.More exercise means a healthier life.
C.Marathons runners are least likely to die.
D.Proper exercise contributes to good health.
8.Getting your children to study can be a little like getting them to eat their vegetables.
(36)G Make a study time and have it at the same time every day.This will help your kids to learn to schedule their day and will give them a sense of control over how they spend their time.
Allow them to study in blocks of time,such as for half an hour with a fiveminute break in the middle. (37)BIdeal(理想的) study times are after dinner or right after school before dinner.
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A.Pick a place where your children can study properly
B.Hold them to the schedule they create for themselves
C.Finally,spend time wiht your kids when they're studying
D.Keep the atmosphere light and offer lots of encouragement,too
E.Instea,use TV as a treat or a reward when the homework is completed
F.Try to stop this bad habit by offerring some sort of reward
G.One of the best ways to form good study habits for your kids is to design a schedule that they keep to.
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    Michael Yassa is a neurobiology professor at the University of California.He and other  researchers wanted to know if caffeine could improve what they called memory consolidation.They asked a group of individuals to learn something new,then the same people were given caffeine,the active component in coffee,tea and chocolate.
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    Professor Yassa says their answers help to show the effects of caffeine on memory.He  says those who took the caffeine pills had a ten to twelve percent increase in their ability to   remember the objects.The amount of caffeine the researchers used in the study was similar to  one strong cup of coffee.
    Professor Yassa says pills with a little more caffene also increased memory,but resulted  in some participants appearing more nervous.

61.From the passage,we can learn that caffeineD.
A.Can be found in every plant  
B.can improve people's health
C.is contained only in coffee    
D.can help people think clearly
62.What does Paragraph 3 mainly discuss?A
A.How MichaeI Yassa does his research.
B.Why Michael Yassa does the research.
C.What the result of Michael Yassa research is.   
D.How many people participate in the research.
63.Which of the following statements about the experiment is true?D
A.The participants must be addicted to coffee.
B.All the pictures seen on the second day were the same.
C.All the participants must drink coffee on the first day.
D.The participants saw three groups of pictures on the second day.
64.What does this text mainly tell us?C
A.Coffeeis essential for people's work.
B.Caffeine has negative effects on our health.
C.Caffeine may help better long-term memory.
D.Caffeine can lead to difficult sleeping and anxiety.
65.The author wrote the text in order toB.
A.forbid people to drink coffee
B.report a new research of coffee
C.attract readers to drink coffee
D.introduce the procedure of research.
5.Starting in l972,the National Park Service established a policy for forest fires calle Natural Burn.It was acknowledged that some forest fires,such as those caused by lightning were necessary for forests to maintain balanced ecosystems,so the fire should be allowed to burn.However,a big fire in Yellowstone National Park in l988 caused this policy to be abandoned since the fire was initially allowed to burn yet soon out of control.As a result,the fire of l988 destroyed much of Yellowstone,which is America's oldest and most beloved national park.Massive areas of plants were destroyed,and large empty spaces and acres of burned and blackened trees greeted visitors.The rivers and streams were choked with ash,and the ecosystem of the park was changed beyond repair.
    In addition,great numbers of animals were killed by the fires that bumed out of control.The fires were driven by high winds,moving as many as ten miles a day.Many small animals died in the flames.The fires'rapid advances gave the wildlife little chance to escape.Even today,few of these small forest animals have returned to live in the park.In the years immediately following the fires,the numbers of visitors declined rapidly.No one was interested in seeing a blackened and treeless park on vacation.Yellowstone had previously been famous for its amazing views and unique geological formations such as the geyser Old Faithful.But now its reputation as America's wonder is damaged permanently.

46.Natural Burn was adopted because some forest fires wereC 
A.hard to put out
B.started by lightning
C.good for the balance of nature
D.approved by National Park Service
47.The big fire in Yellowstone in 1988D.
  A.became out of control at first
  B.destroyed the park completely
  C.was allowed to burn continuously
  D.brought the natural burn policy to an end
48.Why were so many animals killed in the big fire?D 
  A.Because winds were blown from high places.
  B.Because the animals moved only ten miles a day.
  C.Because the animals lived in lower places.
  D.Because strong winds contributed to the fire a lot.
49.Yellowstone was famous for itsC.
A.rare animals   B.unique plants    C.beautiful scenery  D.little streams
50.The text probably comes fromD.
A.a science fiction    B.a news report
C.a commercial ad      D.a geography magazine.

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