Pollution is reducing the fragrance(芬芳) of plants and thus preventing bees from pollinating(授粉) them—endangering one of the most essential cycles of nature, a new study suggests.
The potentially hugely significant research, funded by US National Science Foundation, has found that gases mainly formed from the emissions(排放) of cars prevent flowers from attracting bees and other insects to pollinate them. And the scientists who have conducted the study fear that insects’ abilities to drive away enemies and attract mates may also be disturbed.
Professor Jose Fuentes, who led the study, said, “Scent molecules(香味分子) produced by flowers in a less polluted environment could travel for roughly 1,000 to 1,200 meters. But today they may travel only 200 to 300 meters. This makes it increasingly difficult for bees and other insects to locate the flowers.”
The researchers, who worked on the molecules of snapdragons(金魚草),found that the molecules are volatile(易揮發(fā)的) and quickly bond with pollutants, mainly formed from vehicle(車輛)emissions. This chemically changes the molecules so that they no longer smell like flowers. A harmful cycle is therefore set up where insects struggle to get enough food and the plants do not get pollinated enough to multiply.
Already bees, which pollinate most of the world’s crops, are in such a great decline that has never been known before in Britain and across much of the globe. At least a quarter of America’s 2.5 million honey bee colonies have been mysteriously wiped out by colony collapse disorder(CCD),where hives are found suddenly deserted.
The crisis(危機(jī)) has now spread to Europe. Politicians insist that CCD has not yet been found in Britain, but considering the present number of bees, the agriculture minister Lord Rooker has sent the warning, “The honey bee population could be wiped out in 10 years.”
Although the researchers are not certain whether this is the real cause of CCD, they say that pollution is making life more difficult for bees and other insects in many ways.
小題1: In what way does pollution prevent flowers from attracting bees?
A.By shortening the distance traveled by the scent molecules of flowers.
B.By disturbing the bees’ ability to attract mates.
C.By weakening the bees’ ability to fight against enemies.
D.By stopping flowers from giving off fragrance.
小題2: From the passage we can know that      .
A.Europe is affected greatly by CCD
B.CCD has destroyed most of the honey bee colonies in Europe
C.no honey bees will be found all over the world in the near future
D.European officials have paid much attention to CCD
小題3: What would be the best title for the passage?
A.Traffic Pollution Puts Bees in Danger
B.Traffic Pollution is to Blame for CCD
C.Pollution Makes Flowers Lose Their Scent
D.Pollution Causes the Decrease in Flowers

小題1:A
小題2:D
小題3:C

試題分析:
小題1:推斷題。根據(jù)文章第三段可知:在一個(gè)相對干凈的環(huán)境下,香味分子的傳播距離通常是1000到2000米左右,而在一個(gè)被污染的環(huán)境下,傳播的距離通常是200-300米,由此可知,環(huán)境污染主要是通過縮短香味分子的傳播距離的方式來組織花兒吸引蜜蜂授粉。故A正確
小題2:推斷題。根據(jù)文章的描述,CCD引起了歐洲官員的注意,他們也正在全力調(diào)查CCD是否是導(dǎo)致蜜蜂等昆蟲類動物生活困難的真正元兇。故D正確
小題3:主旨題。根據(jù)文章第一段首句可知,全文主要講述了環(huán)境污染和香味分子之間的聯(lián)系,也就是說,環(huán)境污染讓許多花兒逐漸丟失了本身分泌的香味分子,導(dǎo)致了蜜蜂授粉的困難,從而危及蜜蜂等昆蟲類動物的生活。故C正確
點(diǎn)評:文章主要講述了環(huán)境污染和香味分子之間的關(guān)系。該篇文章集中考察了推斷題和主旨題,要求考生在理解全文的大意,進(jìn)一步捕捉細(xì)節(jié),再依據(jù)細(xì)節(jié)做出推斷題,做此類題,考生應(yīng)培養(yǎng)自己的推理判斷能力,同時(shí)注意提高閱讀速度。
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科目:高中英語 來源:不詳 題型:閱讀理解

Left-Handers’ Day
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Another problem is that many people have considered it bad to be left-handed. Some teachers and parents have tried to force children who used their left hands to use their right ones instead.
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About ten percent of people around the world are left-handed.
小題1:International Left-handers’ Day aims to(目的是) bring attention to_________.
A.the right-handers
B.the everyday problems
C.the people who have some difficulty using equipment and tools
D.the everyday problems of people who use their left hands
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A.One.B.Two.C.Three.D.Four.
小題3:As to why some people are left-handed, scientists believe the reason is________.
A.habitsB.geneticsC.parentsD.birthplaces
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科目:高中英語 來源:不詳 題型:閱讀理解

It’s good to make mistakes, and here is why.
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Another good thing about mistakes is this: When you are making mistakes, you are learning. Consider this: Edison failed 10,000 times before he perfected the light bulb. When asked how it felt to fail that many times, he said that he hadn’t failed 10,000 times, but rather had learned 10,000 things that didn’t work.
Finally, when you make a mistake you are much closer to success. Why?
Because when all is said and done, you will have tried some number of things before you succeeded. Every time you make a mistake you eliminate one of those things and are one step closer.
But this all doesn’t mean that you should go ahead without considering the consequences of a mistake. Quite the contrary, when you try something new you have to be willing to set some reasonable limits so that in the event that it doesn’t work out the way you want it to, you will be in a position to try again.
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There is an old saying that goes, “If you’re not making mistakes, you’re not trying hard enough.”
So go forth and make mistakes. And learn. And grow. And prosper(成功).
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A.Never mind, I can always try again.
B.I’d better stay out of trouble.
C.Ok! Now I can learn something.
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科目:高中英語 來源:不詳 題型:閱讀理解

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D.a(chǎn) bridge held by bamboo cable was built thousands of years ago
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B.Cables made of bamboo can last for over a thousand years.
C.Bamboo can be used for buildings, bridges and watering projects(工程).
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A.Look at rock collections.B.See dinosaur models.
C.Watch puppet(木偶) making.D.Give performances.
小題3: Where does this text probably come from?
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During the school year many parents take on the role of driver as they drive their children from one lesson to another .Understandably so. Many of us want our children to have a little taste of everything, from organized sports to music, dance and more. But we can overdo it, leaving our children feeling a little burnt out, and according to parent educator Diane Loisie ,it’s their school work which suffers the most. “After school, if they’re busy in a number of sporting events, besides they need to do their homework, then the time they’ll feel sleepy is in the classroom. Your child needs free time. So if you’re filling up that after school time, then it’s during the day that they’re going to be taking a break.”
Professor Claire McDermott agrees that there’s a lot to be gained from sometimes putting those scheduled lessons and activities away. “Relaxing time is important for children. It’s time just to do the things they want to do. A child can go up to their room, or they can play around. It doesn’t look like productive time; parents certainly wouldn’t be saying ‘Wow, are they ever learning things now?’ But this relaxing time gives both the body and the brain just a wonderful chance to relax after a day. It helps a child prepare for sleep, but it also helps to understand the learning that’s gone on that day.”
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A.They can get bored easily about everything.
B.They might have no time to do the homework.
C.They might not pay much attention to learning.
D.They cannot easily focus on learning during the day.
小題2:What should we think of children’s playing around aimlessly?
A.It is productive.B.It is helpful.C.It is a bad habit.D.It is a waste of time.
小題3:Why should parents limit the activities our children attend?
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D.Because children cannot focus on too many activities.
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Recently, a scientist did some experiments.He left a group of 4-year-olds in a room with a bell and a candy.If they rang the bell, he would come back and they could eat the candy.If, however, they didn't ring the bell and waited for him to come back on his own, they could then have two candies.
In videos of the experiment, he can see the children kicking, hiding their eyes--trying to exercise self-control so they can wait and get two candies.The results are different.Some broke down and rang the bell within a minute.Others lasted 15 minutes.
The children who waited longer went on to get higher SAT scores.They got into better colleges and had better adult success.The children who rang the bell quickest were more likely to have received worse teacher and parental evaluations (評價(jià)) 10 years later and were more likely to have drug problems at age 32.
The experiments are worth noting because people spend a lot of time thinking about how to improve education, how to become rich.But when the result is not good, they will come back to ask "how do we get people to get the sort of self-control that leads to success?" This is to enter the world of human nature.
So these experiments along with everyday experience, tell us that self-control is most important.Young people who can sit through sometimes boring classes to get a degree can work hard in order to learn a language well.They can avoid drugs and alcohol.For people without self-control skills, however, school is a series of failed ordeals(煎熬).No wonder they drop out and their later life is a group of foolish ideas, such as drug use, stealing and so on.
小題1:The scientist did some experiments to         .
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B.test children's intelligence of ringing the bell
C.find good ways of training children to learn
D.prove that children's education is important
小題2:We can learn from the experiment that        
A.a(chǎn)ll children tried to ring the bell for more candies
B.some children didn't get any candy in the end
C.the children have different self- control
D.the last one to ring the bell is most successful
小題3:What is the best title for this passage?
A.Ways of self-control training
B.Experiments on children's ringing the bell
C.Higher score, better achievements
D.Self-control is the key to success

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科目:高中英語 來源:不詳 題型:閱讀理解

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小題2:Which of the following can be used in place of the underlined phrase "hand in hand" ?
A.Here and there. B.Again and again.
C.As usual. D.At the same time.
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A.A11 the money on advertising was wasted.
B.Not all the advertisements were well designed.
C.A11 the managers knew about advertising then.
D.Managers spent no money on advertising.
小題4:What does the writer think of advertising?
A.Useless.B.Unnecessary.C.Important.D.Wasteful.

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