US researchers have found traces of an ancient lake on Mars recently, increasing hopes of discovering evidence that billions of years ago the Red planet hosted life.
The lake, which dates back some 3.4 billion years, appears to have covered as much as 80 square miles and was up to 1,500 feet deep, said the team from the University of Colorado.
“This is the first clear evidence of shorelines on the surface of Mars,”said Boulder’ s research associate, Gaetano Di Achille, in a study published in the latest edition of Geophysical Research Letters.
“The identification of the shorelines and accompanying geological evidence allows us to calculate the size and volume of the lake, which appears to have formed about 3.4 billion years ago.”
Analysis of the images has shown the water carved out the canyon (溪谷) in which it was found, which then opened out into a valley depositing (使淤積) sediment (沉積) which formed a delta (三角洲).
“Finding shorelines is a great discovery to us,” said assistant professor Brian Hynek, adding it showed the lake existed at a time when Mars was thought to have been cold and dry.
Scientists believe the oldest surfaces on Mars formed during the wet and warm era known as the Noachan epoch, about 4.1 billion to 3.7 billion years ago.
The newly discovered lake is believed to date from the Hesperian era and postdates the end of the warm and wet period on Mars by 300 million years, according to the study.
Scientists believe deltas next to the lake may well hold secrets about past life on Mars as such places on Earth have become the natural deposits of organic carbon and other markers of life.
小題1:The size of the lake found on Mars is ______.
A.80 square miles B.1,500 square miles
C.3.4 billion square milesD.300 million square miles
小題2:When the lake existed, the weather on Mars was ____.
A.hot and wet B.wet and warm C.cold and dryD.cold and wet
小題3:Why do scientists think deltas near the lake may hold secrets about past life on Mars?
A.Because similar places on Earth have become natural deposits of markers of life.
B.Because someone has put secrets about past life on Mars there.
C.Because past life has been found in other deltas on Mars.
D.Because some people are said to have already seen life marks there.
小題4:Which of the following statements is NOT true according to the passage?
A.The Noachan epoch was a wet and warm era.
B.The lake might have existed 3.4 billion years.
C.The discovery can’ t fully prove that the Mars once hosted life.
D.The lake traces prove that there exists life on Mars now.

小題1:A
小題1:C
小題1:A
小題1:D
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科目:高中英語 來源:不詳 題型:閱讀理解

An inventor seeks to create a new product that serves a specific need and fulfills a role that other products do not. Sometimes an inventor comes up with a wholly new idea, but more often inventions are simply improvements on an older design. With a little imagination and creativity (創(chuàng)造力), an old idea can suddenly become something new.
However, creating a new invention means much more than having a brilliant idea. A good designer follows the design process: identifying the challenge, researching and brainstorming ideas(集思廣益), designing a solution, testing and evaluating the ideas, and finally building the product. Designers also use science, math, technology, and engineering to design a tool that satisfies the need they identified.
Anyone can be an inventor —even kids! For example, Chester Greenwood was just fifteen years old when he invented a product that changed his life. In fact, his idea was so good that his invention supported him for the rest of his life. You may not know his name, but you probably know his invention —earmuffs (保暖耳罩)!
The inspiration for his earmuff design came to Chester when he was ice-skating. His ears were cold, and he decided to find a way to keep them warm. With the help of his grandmother, he made a new product to protect his ears and at the age of eighteen, Chester patented his earmuff design.
Many other famous inventors started young as well. Margaret Knight —the inventor of the flat-bottomed brown paper bag —is said to have created a safety device for textile looms(織布機) when she was just twelve years old. Another example is Thomas Edison, one of the greatest inventors in history, who applied for his first patent when he was just twenty-one years old. Over the course of his life, Thomas Edison patented a total of 1,093 inventions!
小題1: In most cases, an invention ________ according to the first paragraph.
A.comes from a complete new idea
B.is usually based on an old product or idea
C.will change its creator’s life completely
D.is created by scientists in different fields
小題2:The second paragraph mainly wants to tell us _______.
A.the difficulty in making a new invention
B.the common steps of creating new things
C.having a good idea is the key to creation
D.designing a tool is the first step in inventing
小題3:The example of Chester Greenwood is used to show that ________.
A.children can also invent something
B.it is easy even for children to make inventions
C.kids have more advantages in inventing things
D.to be an inventor is the best way to change one’s life
小題4:At first Chester designed his earmuffs in order to ________.
A.protect his ears while ice-skating
B.earn money to support his poor family
C.realize his dream of becoming an inventor
D.make himself look fashionable while ice-skating

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科目:高中英語 來源:不詳 題型:閱讀理解

Every pet owner loves his pet. There is no argument here.
  But when we asked our readers whether they would clone (克隆, 復(fù)制)their beloved animals, the responses(反應(yīng)) were split almost down the middle. Of the 228 readers who answered it, 108 would clone, 111 would not and nine weighed each side without offering an opinion.
  Clearly, from readers’ response, this is an issue that reaches deeply into both the joy and final sadness of owning a pet. It speaks, as well, to people’s widely differing expectations over the developing scientific procedure.
  Most of the respondents who favored the idea strongly believed it would produce at least a close copy of the original; many felt the process would actually return an exact copy. Those on the other side, however, held little hope a clone could never truly recreate a pet, many simply didn’t wish to go against the natural law of life and death.
  Both sides expressed equal love for their animals. More than a few respondents owned “the best dog/cat in the world”. They thought of their pets as their “best friend”, “a member of the family,”“the light of my life.” They told moving stories of pets’ heroism, intelligence and selfless devotion.
  Then the loss is so disturbing---and the cloning so attractive. “People become very close to their animals, and the loss can be just as hard to bear as when a friend or family member dies,” says Gary Kowalski, author of Goodbye, Friend: Healing Wisdom for Anyone Who Has Ever Lost a Pet. “For me, cloning feels like an attempt to turn death away…It’s understandable. Death is always painful. It’s difficult to deal with. It’s hard to accept.”
  But would cloning reduce the blow? This question seemed to be at the heart of this problem.
小題1:So far as the cloning of pets is concerned, a recent survey shows that, of all pet owners, ____.
A.a(chǎn) lot more of them are for it
B.a(chǎn) lot more of them are against it
C.very few of them are willing to tell their opinions
D.a(chǎn)bout half of them are for it and the other half against it
小題2:While talking about the respondents from the readers, the expression “final sadness of owning a pet” refers to ____.
A.the death of one’s pet
B.the high cost of owning a pet
C.the troubles one has to deal with in keeping a pet
D.the dangers about the cloning of a pet
小題3:From what Gary Kowalski says, we can know that he ____.
A.has never thought about the problem of cloning
B.is going to write another book on pets
C.is in favor of the idea of cloning pets
D.is all against the cloning of pets
小題4:What is the key question at the heart of the problem of cloning pets?
A.Can cloning make the pain one suffers less when a pet dies?
B.Can pet owners afford the cost of cloning?
C.Does cloning go against the law of nature?
D.How reliably does cloning produce an exact copy of one’s pet?

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科目:高中英語 來源:不詳 題型:閱讀理解

A weather map is an important tool for geographers.   A succession of three or four maps presents continuous picture of weather changes. Weather forecasters are able to determine the speed of air masses and fronts (氣鋒) to determine whether an individual pressure aroa is deepening or becoming shallow and whether a front is increasing or decreasing in intensity (強烈).They are also able to determine whether an air mass is retaining its original characteristics or taking on those of the surface over which it is moving. Thus, a most significant function of the map is to reveal a summary picture of conditions in the atmosphere at a given time.
All students of geography should be able to interpret a weather map accurately.Weather maps contain an enormous amount of information about weather conditions existing at the time of observation over a large geographical area. They reveal in a few minutes what otherwise would take hours to describe. The United States  Weather Bureau issues information about approaching storms, floods, frosts and all climatic conditions in general. Twice a month it issues a 30-day"outlook" which is a rough guide to weather conditions likely to occur over broad areas of the United States. These 30-day outlooks are based upon an anaiysis of the upper air levels which often set the stage for development of air masses, fronts and storms.
Considerable effort is being exerted today to achieve more accurate weather
predictions, with identifying and tracking storms over regions which have but few meteorological (氣象)stations. Extensive experiments are also in progress for weathef modification studies.
小題1: One characteristic of weather maps NOT mentioned by the author in this passage is_______.
A.floodsB.frontsC.temperature changesD.frosts
小題2: The thirty-day forecast is determined by examining________.
A.daily weather mapsB.upper air levels
C.satellite reportsD.changing fronts
小題3:The observation of weather conditions by satellites is helpful because it________
A.is modern
B.uses electronic instruments
C.makes weather prediction easier
D.shows things that would otherwise take hours to describe in a few minutes
小題4:A weather map is a summary because it_______
A.sums up a great deal of informationB.a(chǎn)ppears daily
C.shows changing frontsD.is a science book
小題5:You may possibly read this article in_________.
A.a(chǎn) magazineB.newspaperC.a(chǎn) novelD.a(chǎn) science book

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科目:高中英語 來源:不詳 題型:閱讀理解

Why should I teach my children history? That sounds like a stupid question to even ask.But, as I hear different home schooling teachers discuss history, I get the idea that there may be different reasons for teaching history.Let me briefly explain the three good reasons for studying history and two bad reasons for studying history.
The major reason I see for studying history is that we can learn from the past.I am convinced that the world would be a much better place if more people understood the successes and failures of the past and the things that made these successes and failures.However, as the unfortunately true statement goes "the one thing we seem to learn from history is that we don't seem to learn from history". Perhaps at least in teaching history, to my children I can do a small part in changing this.
A second major reason for studying history is that it is hard to understand the current political climate in the absence of an understanding of its historical context.We can’t even understand why we are and where we are without history, much less (更不必說) try to figure out where we are going or how we should get where we want to be.
I teach my children history, for one more reason.I purchased a set of historical audio (錄音機) tapes for our children.My seven-year-old son listened to them over and over.It was my hope that he would become inspired by the accomplishments of people like the Wright brothers to accomplish things by himself.I think that it is good that we celebrate the accomplishments of people like Martin Luther King Jr.if, in doing so, young people are called on to stand for the principles that he stood for and accomplish what he accomplished.I also think that by studying people like Adolph Hitler, people can learn to stand against the things that he stood for.
小題1:What message can we get from the underlined sentence in Paragraph 2 ?
A.Many people aren't clever enough to learn well from the past.
B.Many people fail to make good use of history and make the same mistakes.
C.Many people feel it hard to understand history.
D.Many people have no interest in studying history.
小題2:In Paragraph 3, the author shows that history is useful because _______________.
A.It makes the current political situation go smoothly
B.It helps us realize the importance of historical events
C.It helps us understand why things are the way they are
D.It helps people accept the present situation where they live
小題3:Some historical figures are mentioned in the last paragraph to show ______________.
A.People can be inspired to do good, while also learning to fight against evil
B.People may also learn from bad historical figures
C.More celebrations should be held to honor their achievements
D.Today’s people can also achieve what they achieved
小題4:What would be talked about in the following paragraph?
A.How to teach history effectively.
B.Some negative reasons for studying history.
C.How to get more people to study history.
D.Some bad historical figures.
小題5:The main purpose of this passage is to ____________.
A.inspire the parents to teach their children history
B.show the importance of history in politics
C.explain the reasons why children study history
D.introduce the writer' s own way of teaching history

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科目:高中英語 來源:不詳 題型:閱讀理解

Good sportsmanship occurs when teammates, opponents(對手), coaches, and officials treat each other with respect. Kids learn the basics of sportsmanship from the adults in their lives, especially their parents and their coaches. Kids who see adults behaving in a sportsmanlike way gradually come to understand that the real winners in sports are those who know how to keep on trying and to behave well - whether they win or lose a game.
Parents can help their kids understand that good sportsmanship includes both small gestures and heroic efforts. It starts with something as simple as shaking hands with opponents before a game and includes acknowledging good plays made by others and accepting bad calls gracefully. Showing good sportsmanship isn't always easy: It can be hard to congratulate the opposing team after losing a close or important game. But the kids who learn how to do it will benefit in many ways.
A child who bullies or laugh at others on the playing field isn't likely to change the behavior when in the classroom or in social situations. In the same way, a child who practices good sportsmanship is likely to carry the respect (尊重) and appreciation of other people into every other aspect of life
The best coaches - and parents - encourage their kids to play fair, to have fun, and to concentrate(專心于) on helping the team while improving their own skills.
小題1:The most important feature of good sportsmanship is ______.
A.respecting others.B.concentrating on winning
C.improving one’s own skills.D.beating the opposing team
小題2:Which of the following is NOT the behavior of good sportsmanship?
A.Shaking hands with opponentsB.Playing on the field like heroes.
C.Praising good playing of othersD.Accepting unfriendly viewers’ opinions
小題3: As a child with good sportsmanship, he / she will ______.
A.treat winning as the most important thing.
B.be proud of the success of his / her team
C.look down on others’ playing skills.
D.not get discouraged when defeated
小題4:It can be inferred from the passage ______.
A.a(chǎn) child who bullies others can’t play well on the field.
B.the real winners are those who play with best skills.
C.a(chǎn) child with good sportsmanship behaves well in society
D.it is simple and easy to show one’s good sportsmanship

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科目:高中英語 來源:不詳 題型:閱讀理解

Lawmakers in the United States have expanded an investigation into the use of location-tracking systems on mobile devices. The action follows recent reports about the storing of information on the Apple iPhone. Some people consider location tracking to be a threat to personal privacy and security.
Allan Friedman, the research director, says, “All wireless companies do some location tracking as part of their networks. This information is usually stored by the companies, not the devices, and there are laws to protect it. Law enforcement(執(zhí)法) agencies, for example, have to have a fairly high standard before it can access that data. And the phone company is also prohibited from selling that information.
Now, two researchers report that location tracking information is being stored directly on Apple devices. They said Apple’s newest operating systems gather global positioning system and timestamp information. The information is stored on the device in a file that is also uploaded (上傳) to any computer that the device is connected to. The researchers say the information is available to anyone who has access to the device or computer.
Allan Friedman says, “This raises additional concerns. There’s the idea that because it’s on my phone and on my computer, rogue applications(惡意程序) that I pay for or that I’m tricked into downloading may be able to access this data and somehow misuse it.”
Apple says it is “not tracking the location of your iPhone”. It is simply keeping a database of Wi-Fi hotspots and cellphone towers near the user’s location. This information is meant to help the iPhone quickly find its location when needed.
Letters have been sent to some of the leading mobile device developers, including Apple and Google. The letters asked for more information about their location tracking systems. Allan Friedman calls this an important start to strengthening privacy laws. He says, “There aren’t strong controls over things like location information, what they are doing with it, how long they are keeping it. And perhaps the most important question is, is my location data with other facts about me?”
小題1:Why did American lawmakers investigate the use of location-tracking systems on cell-phones?
A.Because the systems can store users’ information
B.Because many users have suffered loss after using them.
C.Because it is thought to threaten users’ privacy.
D.Because many reporters have shown the problem of the systems.
小題2: Allan Friedman believes that ________.
A.wireless companies focus on personal privacy.
B.people are forbidden to get access to private data at will
C.phone companies may sell private information secretly
D.customers may ask wireless companies to locate their tracking
小題3: What do we know from Paragraph 3?
A. Location tracking information is stored online.
B.Apple’s newest operating systems collect all kinds of information.
C.Location tracking information may be uploaded to any iPhone.
D.Apple’s newest operating systems may reveal the private information of users.
小題4:Which of the following statements is TRUE according to the passage?
A.Apple denies that it tracks the location of users.
B.The researchers may misunderstand the Apple’s systems.
C.The global positioning system is to blame for rogue applications.
D.The iPhone can quickly find its location by using its user’s information.

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科目:高中英語 來源:不詳 題型:閱讀理解

While most high school students spend most of their time worrying about who likes who, and different relationships between their classmates, I choose to focus on my school lessons and sports.
When I was young, my mother encouraged me to develop and keep friendship with boys in order to build strong relationships. But she told me not to risk a good friendship with a boy with the title of boyfriend. It’ s indeed a wise choice to stay friends with those of the opposite sex. In my opinion, even though some high school relationship might continue after graduation, the probability of them lasting much longer is so slim that there really is not a point to it.
Firstly you have to think about such a question— whether it is possible to hurt both of you, or even hurt both of your future husbands or wives. My second point is that you still can date if you hope marriage could possibly follow. Except this, there really is not any other reason for dating. Some students desire relationships for a chance to be romantic. While these are nice to have, there are many more important things at this point in our lives.
The titles of boyfriend and girlfriend put too much stress on a relationship between high school students. Just staying as common friends may be the best choice for us. I strongly recommend we should deal with it in an appropriate way and follow our teachers’ advice if necessary.
小題1:The author writes this passage probably for        to read.
A.high school studentsB.school teachers
C.parents and teachersD.married couples
小題2: Between sexes, the relationship of being good friends might be        than that of being boy/girl-friends.
A.weakerB.saferC.slimmerD.stronger
小題3:How does the writer like the idea of dating among the students?
A.Dating is a nice chance for students to be romantic.
B.Studying is far more important than dating in school.
C.In high school dating can surely lead to future marriage.
D.Dating in high school is sure to hurt your future family.
小題4:The underlined word “it” in the last paragraph might refer to       .
A.the title of boyfriend or girlfriend at school
B.a(chǎn)dvice given by both teachers and parents
C.the pressure from school lessons and sports
D.the relationship between students of opposite sexes

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科目:高中英語 來源:不詳 題型:閱讀理解

Supermarkets are trying out new computers that make shopping carts more intelligent. They will help shoppers find paper cups or toilet soap, and keep a record of the bill.
The touch-screen devices are on show at the Food Marketing Institute’s exhibition here this week, “These devices are able to create value and get you around the store quicker,” said Michael Alexander, manager of Springboard Retail Networks Inc., which makes a smart cart computer called the Concierge.
Canadian stores will test the Concierge in July. A similar device, IBM’s “Shopping Buddy”, has recently been test-marketed at Stop & Shop stores in Massachusetts.
Neither device tells you how many fat grams or calories are in your cart, but they will flash you with items on sale. The idea is to make it easier for people to buy, not to have second thoughts that maybe you should put something back on the shelf.
“The whole model is driven by advertisers’ need to get in front of shoppers,” said Alexander. “They’re not watching 30-second TV ads anymore.”
People can use a home computer to make their shopping lists. Once at the store, a shopper can use a preferred customer card to start a system(系統(tǒng))that will organize the trip around the store. If you’re looking for toothpicks, you type in the word or pick it from a list, and a map will appear on the screen showing where you are and where you can find them.
The device also keeps a record of what you buy. When you’re finished, the device figures out your bill. Then you go to the checker or place your card into a self-checkout stand and pay.
The new computerized shopping assistants don’t come cheap. The Buddy devices will cost the average store about $ 160, 000, and the Concierge will cost stores about $ 500 for each device.
小題1:The underlined word “they”(paragraph 1)refers to ____________.
A.supermarketsB.shop assistants
C.shopping cartsD.shop managers
小題2:We can learn from the last paragraph that ___________.
A.intelligent shopping carts cost a large sum of money
B.the Concierge is cheaper than the Buddy devices
C.shop assistants with computer knowledge are well paid
D.a(chǎn)verage stores prefer the Concierge to the Buddy devices
小題3:What might be the most suitable title for the text?
A.New age for supermarkets
B.Concierge and Shopping Buddy
C.New computers make shopping carts smarter
D.Touch-screen devices make shopping enjoyable

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