How far would you be willing to go to satisfy your need to know？Far enough to find out your possibility of dying from a terrible disease？These days that’s more than an academic question，as Tracy Smith reports in our Cover Story.
There are now more than a thousand genetic(基因的) tests，for everything from baldness to breast cancer，and the list is growing.Question is，do you really want to know what might eventually kill you？For instance，Nobel Prizewinning scientist James Watson，one of the first people to map their entire genetic makeup，is said to have asked not to be told if he were at a higher risk for Alzheimer’s(老年癡呆癥)．
“If I tell you that you have an increased risk of getting a terrible disease，that could weigh on your mind and make you anxious，through which you see the rest of your life as you wait for that disease to hit you.It could really mess you up.” said Dr.Robert Green，a Harvard geneticist.
“Every ache and pain，” Smith suggested，could be understood as “the beginning of the end.”“That’s right.If you ever worried you were at risk for Alzheimer’s disease，then every time you can’t find your car in the parking lot，you think the disease has started.”
Dr.Green has been thinking about this issue for years.He led a study of people who wanted to know if they were at a higher genetic risk for Alzheimer’s.It was thought that people who got bad news would，for lack of a better medical term，freak_out.But Green and his team found that there was “no significant difference” between how people handled good news and possibly the worst news of their lives.In fact，most people think they can handle it.People who ask for the information usually can handle the information，good or bad，said Green.
【小題1】The first paragraph is meant to________.
| A．a(chǎn)sk some questions |
| B．introduce the topic |
| C．satisfy readers’ curiosity |
| D．describe an academic fact |
| A．He is strongly in favor of the present genetic tests. |
| B．He is more likely to suffer from Alzheimer’s disease. |
| C．He believes genetic mapping can help cure any disease. |
| D．He doesn’t want to know his chance of getting a disease. |
| A．a(chǎn)dvisable not to let him know |
| B．impossible to hide his disease |
| C．better to inform him immediately |
| D．necessary to remove his anxiety |
| A．break down | B．drop out |
| C．leave off | D．turn away |
【小題1】B
【小題2】D
【小題3】A
【小題4】A
解析【小題1】 B
解析 在第一段中通過(guò)兩個(gè)問(wèn)題引出本文要談?wù)摰脑掝}。
【小題2】 D
解析 根據(jù)第二段“Nobel Prizewinning scientist James Watson，one of the first people to map their entire genetic makeup，is said to have asked not to be told if he were at a higher risk for Alzheimer’s(老年癡呆癥)．”可知，James Watson要求如果他的基因表明他有很高的老年癡呆癥的可能性不要告訴他。
【小題3】 A
解析 根據(jù)這兩個(gè)自然段可知，如果你提前被告知你將來(lái)可能患某種可怕的疾病，你可能會(huì)心情焦慮甚至精神崩潰。故A項(xiàng)符合。
【小題4】 A
解析 根據(jù)劃線詞所在句子及后一句可知，freak out的意思是break down(精神垮掉)。
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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解
Dreams can be familiar and strange, fantastical or boring, but some dreams might be connected to the mental processes that help us learn. In a recent study, scientists found a connection between nap-time dreams and better memory in people who were learning a new skill.
In the study,99 college students between the ages of 18 and 30 each spent an hour on a compute, trying to get through a virtual maze（迷宮）.The maze was different place each time they tired—making it even more difficult. They were also told to find a particular picture of a tree and remember where it was.
For the first 90 minutes of a five-hour break, half of the participants stayed awake and an half were told to take a short nap .Participants who stayed awake were asked to describe their thoughts. Participants who took a nap were asked about their dreams before sleep and after sleep—and they were awakened within a minute of sleep to describe their dreams.
Stickgold, a neuroscientist（神經(jīng)科學(xué)家）,wanted to know what people were dreaming about when their eyes weren＇t moving during sleep.
Four of the 50 people who slept said their dreams were connected to the maze. Some dreamed about the music that had been playing when they were working ; others said they dreamed about seeing people in the maze. When these four people tried the computer maze again, they were able to find the tree faster than before their naps.
Stickgold suggests the dream itself doesn‘t help a person learn—it＇s the other way around.He suspects that the dream was caused by the brain processes associated with learning.
All four of the people who dreamed about the task had done poorly the first time, which makes Stickgold wonder if the dreams show up when a person finds a new task particularly difficult. People who had other dreams, or people who didn＇t take a nap, didn＇t show the same improvement.
【小題1】Before having a short nap, participants of the experiment were asked to .
| A．stay in a different place in the maze |
| B．design a virtual maze which is difficult to get through |
| C．experience the experiment and try to remember something |
| D．get through a virtual maze on a computer from the same place |
| A．Participants who took a nap were required to express their thoughts. |
| B．Some dreams may encourage people to invent something new. |
| C．Participants who dreamed about films could finish the task more easily. |
| D．Participants whose dreams had something to do with the maze could find the tree faster. |
| A．every person may dream about what they learned |
| B．people＇s brain processes may still be connected with their learning in their dreams |
| C．once people＇s eyes stop moving, they are sure to dream about something |
| D．no matter how fantastical or boring, dreams are connected with people＇s life |
| A．Dreams Are Strange | B．Not All Dreams Are True |
| C．Dreaming Makes Perfect | D．Stickgold, a Dream Expert |
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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解
The year is 2094,It has been announced that a comet is heading towards the Earth.Most of it will miss our planet, but two pieces will probably hit the southern half of the Earth.
On 17 July, a piece four kilometers wide enters the Earth’s atmosphere with a massive explosion.About half of the piece is destoryed but the remaining part hits the South Atlantic at 200times the speed of sound.The sea boils and a huge gole is made in the sea bed.Huge waves are created and spread outwards form the hole.The eall of water,a kilometer high,rushes towards southern Africa at 800 kilometers an hour.Cities on the African coast are totally destroyed and millions of people are drowned.
Before the waves reach South America.the second piece of the comet lands in Argentina.Earthquakes and volcanoes are set off in the Andes Moutains.The shock waves move north into California and all around the Pacific Ocean. The cities of Los Angeles,San Francisco and Tokyo are completely destroyed by earthquakes,Millions of people in the southern half of the earth are already dead,but the north won’t eacape for long.Because of the explosions the sun is hidden by clouds of dust,and temperatures around the world fall to almost zero.Crops are ruined.The sun won’t be seen again for many years.Wars break out as countries fight for food.A year later,no more than 10 million remain laive.
Could it really happen?In fact,it has already happened more than once in the history of the Earth.The dinesaurs were on the Earth for over 160 million years,Then 65 million years ago they suddenly disappeared.Many scientists believe that the Earth was hit by a piece of object in space. The dinosaurs couldn’t live through the cold climate that followed and they died out .Will we meet the same end ?
【小題1】What is mainly described in the passage ?
| A．A historic discovery | B．A research on space |
| C．A scientific adventure | D．An imaginary event |
| A．a(chǎn)n earthquake | B．huge waves |
| C．damages to cities | D．a(chǎn)n Earth explosion |
| A．Because the land is covered with water. |
| B．because people there can not live at the temperature of zero. |
| C．Because wars break out among countries. |
| D．Because the light and heat from the sun can not reach the earth. |
| A．a(chǎn)nimals could not live in the cold climate. |
| B．what happened 65 mollion years ago was an invented story. |
| C．the human beings will die out in 2094 |
| D．the Earth could be hit by other objects in space |
| A．worried | B．full of imagination | C．practical | D．a(chǎn) scientist |
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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解
Global warming is when the earth heats up，the temperature rises.It happens when greenhouse gases—carbon dioxide，water vapor，nitrous oxide(二氧化氮)，and methane(沼氣) trap heat and light from the sun in the earth’s atmosphere，which increases the temperature.This is like when heat is trapped in a car.On a very hot day，the car gets hotter when it is out in the parking lot.This is because the heat and light from the sun can get into the car，by going through the windows，but it can’t get back out.Once the light is inside the car，it is trapped and the heat builds up，just like it does in the earth’s atmosphere.This is what the greenhouse effect does to the earth.The heat and light can get through the atmosphere，but it can’t get out.As a result，the temperature rises.
Sometimes the temperature can change in a way that helps us.The greenhouse effect makes the earth appropriate for people to live on.Without it，the earth would be freezing，or on the other hand it would be burning hot.We would not get the sun’s heat and light to make the night somewhat warm.During the day，especially during the summer，it would be burning because the sun would be up with no atmosphere to filter(過(guò)濾) it，so people，plants，and animals would be exposed to all the light and heat.
Although the greenhouse effect makes the earth able to have people living on it，if there gets to be too many gases，the earth can get unusually warmer，and many plants，animals，and people will die.They would die because there would be less food (plants like corn，wheat，and other vegetables and fruits)．This would happen because the plants would not be able to take in the heat.This would cause us to have less food to eat，but it would also limit the food that animals have.Gradually，people，plants，and animals would all die of hunger.
People are doing many things to try to stop global warming.One thing people are doing is carpooling.Carpooling is driving with someone to a place that you are both going to.This minimizes the amount of greenhouse gases put into the air by a car.
Another thing that people are doing is being more careful about leaving things turned on like the television，computer，and the lights.A lot of people are taking time away from the television，and instead，they are spending more time outdoors.This helps our planet out a lot.Now，more people are even riding buses，walking to school，and riding their bikes to lower the amount of greenhouse gases in the air.
Planting trees and recycling also help.If you recycle，less trash goes to the dump，and less trash gets burned.As a result，there are fewer greenhouse gases in our atmosphere.Although adults do many things to help stop global warming，kids can do just as much.
【小題1】By the example given in Paragraph 1，the author wants to ________.
| A．explain how greenhouse gases work |
| B．show his feeling in a car in hot summer |
| C．tell us cars are causes of greenhouse gases |
| D．say that there are greenhouse gases in every car |
| A．light | B．heat |
| C．temperature | D．greenhouse effect |
| A．If there is greenhouse effect，all the plants will die. |
| B．Human beings are likely to disappear from the earth. |
| C．Crops can’t take the heat if there is greenhouse effect. |
| D．Although greenhouse effect is necessary，too much of it causes us to die. |
| A．Why cars and buses pollute the air a lot. |
| B．What kids can do to help stop global warming. |
| C．What global warming is doing to the environment. |
| D．Who should be responsible for the environmental problems. |
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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解
According to body language expert Robert Phipps，the way people sleep at night actually determines a lot about the type of personality they have.Phipps has identified four sleeping positions that affect personality.
Phipps found that worriers，those who stress the most，tend to sleep in the fetal(胎兒的)position.He found that this is the most common bedtime position，with nearly 58 percent of people sleeping on their side with knees up and head down.The more we curl up(蜷曲)，the more comfort we are seeking，according to Phipps.
The second most common position is the log.Sleeping with a straight body，with arms at each side，as if they are standing guard at Buckingham Palace，indicates stubbornness，and these people(the 28 percent who sleep this way)often wake up stiffer than when they went to sleep.
“The longer you sleep like this，the more rigid your thinking is and you can become inflexible，which means you make things harder for yourself，”according to Phipps.
Yearner(向往型)sleepers are next on the list.About 25 percent of people sleep in this style—on their side with arms stretched out in front，looking as if they are either chasing a dream or perhaps being chased themselves.Yearners are typically their own worst critics，always expecting the best results，explained Phipps.These people often wake up refreshed and eager to face the challenges of the day ahead.
Perhaps the most peculiar(奇怪的)of sleep styles is the freefaller position.This sleep style makes up 17 percent of the population.They sleep face down with arms stretched out.These people，according to Phipps，feel like they have little control over their life.Not only is this the strangest of sleep styles，but also the least comfortable，and people may wake up feeling tired and have no energy.
In conclusion，Phipps has only one more thing to add：“A good night's sleep sets you up for the following day and our sleeping positions can determine how we feel when we wake.”
【小題1】Which of the following is the best title of the passage?
| A．A Good Night's Sleep Sets You Up for the Following Day |
| B．Your Personality Depends a Lot on How You Sleep at Night |
| C．How You Sleep at Night Affects What You Do the Next Day |
| D．Which Sleeping Position Helps You Sleep Comfortably |
| A．stubborn | B．flexible |
| C．comfortable | D．strange |
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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解
Why do human beings still risk their lives under ground and doing one of the dirtiest and most dangerous jobs in the world? It is an increasingly urgent question, given the recent mining accidents in Sago, W. Va and Huntington, Utah. A small group of engineers and robotics experts look forward to a day in the not-too-distant future when robots and other technology do most of the dangerous mining work.
Robotic technology, in particular, holds much promise, McAteer says, especially when it comes to mapping mines and rescuing trapped miners --- the special operations of the mining industry.
One of the first mining robots was developed five years ago at Carnegie Mellon University’s Robotics Institute. It was called Groundhog. It used lasers(激光器) to “see” in dark tunnels and map abandoned mines—some of the most dangerous work in the business.
The latest design is called Cave Crawler. It’s a bit smaller than Groundhog，and even more advanced. It can take photos and videos and has more sensors that can detect the presence of dangerous gases. Incredibly，the robot has a real sense of logic. If it comes across an obstacle it gets momentarily confused. It has to think about what to do and where to go next. Sometimes it throws a fit just like a real person.
The greatest problem, though, is cost. The money of the earliest research project was provided by the government, but that money had dried up, and it’s not clear where future money will come from. Partly for that reason, and partly because of advances in safety, mining is not nearly as dangerous as it was in the past. Since 1990, fatalities(致命性) have declined by 67% and injuries by 51% , according to the National Mining Association.
Some experts predict that robots in mines will serve much of the same function that they do in the automotive industry. The robots do the most boring and dangerous jobs，but won’t get rid of the need for human workers.
【小題1】The latest robot is more advanced than Groundhog, mainly because ____.
| A．it can map abandoned mines |
| B．it can see in the dark tunnels |
| C．it’s smaller than Groundhog |
| D．it has a real sense of logic |
| A．gets angry | B．gets sick |
| C．becomes hungry | D．becomes cheerful |
| A．robots in mines will serve much in the automotive industry |
| B．there will be no need for human workers in mines |
| C．the mine robots will have a very bright future |
| D．robots in mines only do some simple jobs now |
| A．the mining robots do most of the mining work at present |
| B．groundhog can discover the presence of dangerous gases |
| C．experts are trying to make robots help miners with dangerous work |
| D．robots cannot do dangerous work in dark areas |
| A．Mining Accidents in America |
| B．Robots in Mines |
| C．Cave crawler, the Latest Robot |
| D．The Future of Robots |
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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解
Growing strawberries in pots
·The best way to start growing strawberries is to buy pot-grown strawberry plants m spring：5plants are plenty for a hanging basket and 10 for the average 13 inch-sized pot．
·Plant them immediately in soil-based compost(混合肥料) and they will produce a modest crop in their first year．The second year should see a bumper(特大的)crop，followed by a slightly lower yield(產(chǎn)量)the third summer .Then start again with fresh stock
·Careful watering and feeding are essential Ifyou are to harvest a good crop，you must never
let the compost dry out,particularly when the fruit is forming and ripening；if you do．most of your
crop will drop off血e bush almost immediately．
·Water well then leave the pots for up to 3 weeks，until they reach the point of drying out Be
Careful not to overwater them during the winter months．
Pruning apple trees
·A one-year-old tree is known as a “maiden”. It has a single stem when purchased. Immediately after planting, cut it back by about half to leave 4 good buds at the base of the stem.. This will force growth from the base or the plant during the summer.
·In the second year ,prune in winter by cutting all side branches back by about one-third, Make sure each cut is made cleanly just above an outward-facing bud. In the third and fourth years, new side branches will have emerged from the previous year’s growth. Cut back all these new side branches by a third, pruning to an outward-facing bud.
·By the fifth year the tree should have a well-balanced shape. From then on ,cut back all new branches by one-third in winter .Remove any diseased wood and broken branches, and ensure the centre is open to air circulation
【小題1】The two pieces of advice probably appear in
| A．a(chǎn) scientific repot | B．a(chǎn) gardening guide | C．a(chǎn) book review | D．a(chǎn) fashion column |
| A．the size of a pot | B．the season of harvesting |
| C．the number of plants in a pot | D．careful watering and feeding |
| A．remove the diseased and broken branches |
| B．keep the whole tree open to air circulation |
| C．force the apple tree to grow from the base in winter |
| D．help the apple tree to form a well-balanced shape |
| A．season | B．water | C．compost | D．cutting |
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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解
What will power your house in the future？Nuclear，wind，or solar power？According to scientists at the Massachusetts Institute of Technology (MIT) in the US，it might be leaves — but artificial (人造的) ones.
Natural leaves are able to change sunlight and water into energy. It is known as photosynthesis (光合作用)．Now researchers have found a way to imitate this seemingly simple process.
The artificial leaf developed by Daniel Nocera and his colleagues at MIT can be seen as a special silicon chip with catalysts (催化劑)．Similar to natural leaves，it can split water into hydrogen and oxygen when put into a bucket of water. The hydrogen and oxygen gases are then stored in a fuel cell，which uses those two materials to produce electricity，located either on top of a house or beside the house.
Though the leaf is only about the shape of a poker card，scientists claimed that it is promising to be an inexpensive source of electricity in developing countries. “One can imagine villages in India and Africa not long from now purchasing an affordable basic power system based on this technology,” said Nocera at a conference of the American Chemical Society.
The artificial leaf is not a new idea. The first artificial leaf was invented in 1997 but was too expensive and unstable for practical use. The new leaf，by contrast，is made of cheap materials，easy to use and highly stable. In laboratory studies，Nocera showed that an artificial leaf prototype (原型) could operate continuously for at least 45 hours without a drop in activity.
The wonderful improvements come from Nocera's recent discovery of several powerful，new and inexpensive catalysts. These catalysts make the energy transformation inside the leaf more efficient with water and sunlight. Right now，the new leaf is about 10 times more efficient at carrying out photosynthesis than a natural one. Besides，the device can run in whatever water is available；that is，it doesn't need pure water. This is important for some countries that don't have access to pure water.
With the goal to “make each home its own power station” and “give energy to the poor”，scientists believe that the new technology could be widely used in developing countries，especially in India and rural China.
【小題1】Which of the following orders correctly shows how the artificial leaf is used to produce electricity?
a．a(chǎn)rtificial leaves split water into hydrogen and oxygen
b．the hydrogen and oxygen gases are stored in a fuel cell
c．the artificial leaves are put in water
d．the fuel cell uses hydrogen and oxygen to produce electricity
| A．c，a，b，d | B．c，b，a，d |
| C．b，c，a，d | D．c，a，d，b |
| A．build up more power stations in the world |
| B．provide cheaper energy for developing countries |
| C．offer people in developing countries access to pure water |
| D．gain a deeper understanding of the photosynthesis process |
| A．a(chǎn)n introduction to the history of artificial leaves |
| B．a(chǎn) mixture of water power and solar energy |
| C．giving energy to the poor |
| D．a(chǎn)n invention copying photosynthesis |
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科目：高中英語(yǔ) 來(lái)源： 題型：閱讀理解
“iPhone 5”, the tallest thing to happen to iPhone since iPhone
We don’t want to change your phone, we want to make you say, “Wow, that is a bigger change than I expected”. “iPhone 5” is a result of that desire to surprise.
It’s been completely redesigned. For the first time ever, we’ve increased the size of display (顯示) by making the screen taller but not wider.
You can see more of your content without the need to scroll. We are making scrolling the thing of the past. It is more comfortable to use and reduces tiredness from scrolling when you read long documents.
Even with the larger display, it is the thinnest iPhone we ever built. To achieve the design this tall, we have to look at it and completely redesign the architecture inside. It’s 18% thinner and 79.5% taller than the previous iPhone. It makes everything you do on “iPhone5” easier. No more hidden menus, no confusing gestures. Everything is right at your fingertips.
The panorama feature (全景拍照) is simply awesome. The ultra HD (超高清) widescreen display lets you get your entire shot in a single snap (快門(mén)). You can also use its creative design for picture stabilization.
With an iPhone this tall, reception of signals has never been better. And of course, all your favorite applications are still available. In fact you will find your old favorites also benefit from the new experiencing handsome ultra HD widescreen. We found while many previous iPhone owners were using Facetime, they only used it for the faces. That’s why we are introducing Bodytime. With its ultra HD widescreen display, Bodytime lets you see a person’s entire body.
It took all of our learning and all of our thinking to realize something so simple, so clear, and yet so tall.
And I wish your pocket were tall enough to hold such a perfect invention!
【小題1】How is the screen of “iPhone 5” different from the previous ones?
| A．Wider. | B．Taller. | C．Easier. | D．Thinner. |
| A．Update the webpage. | B．Download new documents. |
| C．Refresh the content. | D．Move the content upward. |
| A．It is really necessary for you to hide menus. |
| B．The reception of signals is bad due to its length. |
| C．Bodytime is popular with previous iPhone owners. |
| D．New applications of “iPhone 5” are unbelievable. |
| A．humorous | B．objective | C．scientific | D．serious |
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