London—coffee protects mice from radiation and could get the same way in humans, according to Indian scientists.
Scientist at India’s Bhabha Atomic Research Center discovered that mice injected with caffeine (咖啡因)remained alive after high doses(劑量)of normally lethal radiation.
Although the study was limited to animals, Kachadillilli George, head of the research team, believes the findings could have implications (something suggested )  for humans .
“It does suggest that coffee might have some beneficial effects in protecting against radiation,” he told New Scientist magazine late last month.
George and his team injected 471 mice with caffeine and left them uncovered to 7.5 grays of gamma radiation(伽瑪射線),enough to kill most mice. But 25 days later 70 percent of the mice that had received 80 milligrams(毫克)of caffeine per kilogram of body weight were still alive.
On the contrary all 196 mice that had been left uncovered to the same radiation but had not been given any caffeine died.
小題1:George and his team drew the conclusion from    .
A.the magazineB.their inventionC.the experimentD.their experience
小題2:From the news, we know     can be protected from radiation.
A.both mice and humansB.only mice
C.only humansD.neither humans nor mice
小題3:From paragraph 5, we know 30 percent of the mice died 25 days later. The reason was probably that     .
A.these mice had been given only 80 milligrams of caffeine
B.these mice hadn’t been injected with caffeine
C.these mice were very big and strong
D.these mice hadn’t been given enough caffeine
小題4:Which is the best title of the article?
A.Human and MiceB.New Radiation Defense—Coffee
C.Deadly Radiation—Gamma RadiationD.Mice Died of Caffeine
小題5:In paragraph 2,the underlined word “ lethal ”means   .
A.causing deathB.livelyC.excitingD.rich

小題1:C
小題2:A
小題3:D
小題4:B
小題5:C

試題分析:本文介紹了一項新的研究發(fā)現(xiàn),科學(xué)家對老鼠做的實驗,得出結(jié)論咖啡因可以使老鼠和人類防御輻射。
小題1:推理題:從第五段的內(nèi)容,可知科學(xué)家對老鼠做的實驗,然后得出結(jié)論的。選C
小題2:細(xì)節(jié)題:從第一段的內(nèi)容:London—coffee protects mice from radiation and could get the same way in humans,可知老鼠和人類都可以免受輻射的影響。選A
小題3:細(xì)節(jié)題:從文章的最后一段:On the contrary all 196 mice that had been left uncovered to the same radiation but had not been given any caffeine died.可知這些老鼠沒有被注射過咖啡因。選D
小題4:主旨題:從第一段和第二段的內(nèi)容,可知講的是咖啡因可以防御輻射。選B
小題5:猜詞題:從所在的句子的remained alive可知這些劑量本來是可以導(dǎo)致死亡的。選A
點評:閱讀理解首先要能基本讀懂文章,然后再根據(jù)問題,在文章中去找到相應(yīng)的依據(jù),研究相關(guān)信息句給出準(zhǔn)確的答案。本文集中考查了細(xì)節(jié)題,要求考生仔細(xì)閱讀全文,做好相應(yīng)的標(biāo)志,以提高閱讀的效率和速度
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科目:高中英語 來源:不詳 題型:閱讀理解

In the near future, people in some parts of the world will watch a new kind of television. It is called the high definition television or the HD-TV. The main difference between an HD-TV and a normal television is the picture. It is more clear and detailed. This is because the HD-TV has many more points and lines that make a television image. Every color television picture contains thousands of red, green and blue points. They all come together as an image in the eye of the person watching. The points are organized in lines that go across the television screen. There are more than five hundred lines in a normal television. The HD-TV has two times as many. To get this clear picture, you must have a big screen. Experts say people using a small screen will see little difference.
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A.the picture B.the shapeC.the voiceD.the weight
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科目:高中英語 來源:不詳 題型:閱讀理解

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科目:高中英語 來源:不詳 題型:閱讀理解

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科目:高中英語 來源:不詳 題型:閱讀理解

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A Winter Adventure 
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小題1:The underlined word “adventure” refers to____________.
A.getting out of bed on the cold winter morning.
B.enjoying the loveliness of the winter outdoors
C.going skiing on the cold winter morning
D.throwing snowballs with friends.
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C.missed the beauty of winterD.enjoyed the seasons except winter
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A.To share some winter thoughts with readers.
B.To show readers how to work on a winter story.
C.To inspire readers to take more exercise in winter
D.To tell readers how to appreciate the beauty of winter.

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C.He had them take notes before lunch.D.He helped improve their writing skills.
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小題1:
A.progressB.pollutionC.educationD.production
小題2:
A.a(chǎn)gricultureB.industryC.environmentD.population
小題3:
A.dangerB.harm C.benefitD.hardship
小題4:
A.dreamB.a(chǎn)pproveC.ridD.speak
小題5:
A.gotB.took C.broughtD.reached
小題6:
A.suggestedB.hopedC.expectedD.said
小題7:
A.continuesB.fails C.triesD.means
小題8:
A.worldB.countryC.starD.end
小題9:
A.discoveringB.usingC.diggingD.destroying
小題10:
A.seriouslyB.dangerouslyC.rapidlyD.steadily
小題11:
A.greatestB.easiestC.lightestD.simplest
小題12:
A.existenceB.startC.growthD.birth
小題13:
A.increaseB.decreaseC.reportD.support
小題14:
A.discussionB.starvationC.constructionD.a(chǎn)rgument
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科目:高中英語 來源:不詳 題型:閱讀理解

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The Millennium Seed Bank Project, run by Kew Gardens—one of the oldest botanical(植物的)  gardens—will officially place the 24,200th species on Thursday, a pink, wild banana from China.
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Stored at minus-20 degrees centigrade, so they can last for thousands of years, the seeds await the day that scientists hope never comes—when the species no longer exist in the wild.
It is a race against time, Smith said, because in the last ten years alone, 20 plants held in the bank have already been wiped out in the wild. He estimates that between a third and a quarter will become extinct this century.
"It is pressing and it is happening now. An area, the size of England, is cleared of primary vegetation(植被)every year." Smith said.
Because most of the world's food and medicines come from nature, protecting wild plant species is quite important, scientists say. There are already many other seed banks safeguarding food crops, which only account for 0.6 percent of plant diversity.
For Kew's next goal—to collect a quarter of wild varieties(種類)by 2020—the botanists need 10 million pounds a year, or a further 100 million pounds on top of the 40 million they have already been granted.
小題1:What’s the final purpose of the Britain’s seed bank?
A.To collect enough money for the project.B.To safeguard food crops.
C.To protect wild plants from extinction.D.To help scientists study wild plants.
小題2:We can learn from the passage that _______.
A.the seeds in the bank can be used now and then all over the world
B.India and Brazil haven’t joined in the Seed Bank Project at present
C.there is only one seed bank in the world at present
D.the wild plants in places like India and China will never die out
小題3:What does the underlined word “it” in paragraph 7 refer to?
A.The extinction of plant species.
B.The Millennium Seed Bank Project.
C.Britain’s seed bank.
D.Kew Gardens’ next goal.
小題4:Which of the following isn’t spoken about in the passage?
A.The global partnership of collecting wild plant species.
B.The temperature condition of the wild plant species in the bank.
C.The government’s support for the seed bank project by giving money.
D.Scientists’ concern on the extinct wild plant species.

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科目:高中英語 來源:不詳 題型:閱讀理解

Do you still get free plastic bags(塑料袋) from the supermarket(超市)? Things will change soon.
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But Wang Shuncheng, a Junior 2 boy, chose a different material (材料). He made his bag with old newspaper. Is a newspaper bag strong enough to hold shopping? Wang says it is, "No problem. I put six bottles of water in the bag," he said. "It's strong enough!"
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Making bags was not all the students did. They had another job: to persuade their parents and relatives to use environmentally-friendly shopping bags instead of plastic ones. The school will show the bags so that shops and stores can get inspiration (靈感) from the students' work.
小題1:On June 2nd, if you don’t bring a shopping bag, ________ in the market.
A.you can get free plastic bags
B.you’ll have to pay for the plastic bags
C.you can’t buy anything
D.you can’t use plastic bags
小題2:From the passage, we can infer(推測) that ___________.
A.Plastic bags will not come into our life any more.
B.When you go shopping after June 2nd, you have to bring a shopping bag.
C.Plastic bags are bad for the environment.
D.No one will use plastic bags after June 2nd.
小題3:What does “persuade” in the last paragraph mean?
A.勸說B.阻止C.保證D.反對
小題4:Supermarkets in China stop providing plastic bags because _________.
A.they want to save money
B.markets want to make more money
C.plastic bags are very expensive
D.they want to protect the environment
小題5:Which of the following is not right from the passage?
A.People may use other material to make shopping bags.
B.The students’ work may bring inspiration to the supermarkets.
C.You can’t use plastic bags in supermarkets any more after June 1st.
D.The newspaper bag made by Wang Shuncheng seems strong.

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