When we look at the sky and see a bright light moving quickly across it or coming towards the earth, we talk about seeing a “shooting star” or a “falling star”. These moving lights are not, in fact, stars at all. They are small pieces of matter from outer space, which burn up as they enter the Earth’s atmosphere. The correct name of them is meteoroids. Any pieces that make it to the Earth’s surface without completely burning up are known as meteorites. A meteor is actually the name given to the light we see when a meteoroid is burning up.
When a meteorite hits the Earth at speeds between 11 and 72 kilometers a second, it can do amazing damage. A very large meteorite could knock the earth out of its orbit. If this happened, all life on Earth would probably become extinct（灭绝）. The path we follow around the Sun would change and as a result the Earth would become either much hotter or much colder. This change in temperature would affect sea levels and the amount of water in rivers. There would either be huge floods, which would cover most of the land with water, or the oceans would dry up and there would be a drought, which means a long period of time without rain. Either way, nothing could survive. If a large meteorite landed in the sea it would almost certainly cause tsunamis, which would race towards the land, destroying everything in their paths.
Although it is unlikely the Earth will be struck by a meteorite large enough to do that kind of damage, there is evidence of fairly large meteorites hitting the Earth in the past. In 1908 a large area of forest in Tunguska, Siberia was destroyed by a meteorite that came apart just before it hit the ground. The moon, however, has about three billion craters陨石坑caused by meteorites impacting影响 its surface. The reason more meteorites have reached the surface of the moon than the surface of the Earth is that the moon does not have enough atmosphere for the meteorites to burn up in. some of the meteorites that have reached the Earth’s surface have done considerable damage. Some scientists believe it was a change of climate caused by meteorites hitting the Earth that resulted in the extinction of the dinosaurs and other large prehistoric animals.
Scientists are especially interested in meteorites because they contain information about the solar system. It is widely believed by scientists that most meteorites are produced by collisions（碰撞） between asteroids (small planets). These collisions probably happened many billions of years ago. This means the physical and chemical structure of a meteorite can give scientists information about the early days of the universe. The story is about ___.
| A．floods caused by meteors |
| B．matter from outer space |
| C．life on Earth millions of years ago |
| D．meteorites that have damaged the moon |
The Earth has ___.
| A．three billion craters |
| B．fewer craters than the moon |
| C．more craters than the moon |
| D．a thinner atmosphere than the moon |
Some scientists believe the dinosaurs became extinct because ___.
| A．they were hit by meteors |
| B．meteorites landed on their nests |
| C．meteorites landed and changed the climate |
| D．they could no longer breathe the atmosphere |
Meteors are ___.
| A．small planets |
| B．the same as asteroids |
| C．from broken parts of asteroids |
| D．the light we see when meteoroids hit our atmosphere |
I grew up with a fat dad—450 pounds at his heaviest.Every week he would try a new diet，and my family ended up eating whatever strange food he was trying at that moment.
After my thirdgrade year，my dad landed a lifechanging job in Manhattan.My mom，my little sister and I had to move away from our hometown，Chicago，and leave my grandmother and her beautiful food behind.
Leaving my grandmother was far more frightening than the move to New York City.There would be no more special weekends at my grandmother’s house，the only place I can remember feeling happy，safe and nourished (有营养的)．It was what I desired.In this new city，I felt extremely alone and lost，and I missed my grandmother terribly.
My grandmother knew just how I felt—And she knew the cure.Every week，she would send me a card with a $20 bill，a recipe and a list of what to buy at the market.It kept us bonded，and her recipes filled my body and soul.
Over the years，I have grown to better understand my father’s struggles with weight and the toll (代价) it took on him and those who love him.I have come to realize he was driven not by vanity (自负) or selfishness as much as by a deep pain.And in spite of growing up in such an unhealthy eating environment (or perhaps because of it)，as an adult I found a passion and a career as a nutrition consultant.
Today，my father weighs 220 pounds and is a vegan (素食者)．How he got there is a story I hope to share in the coming weeks.More importantly，food is no longer a barrier that keeps us apart，but a bridge that keep us connected.There is nothing my dad enjoys more than talking with me about dietary theories and his weightloss victories.And now I am the one regularly sending recipe cards to my father’s house，just as my grandmother did for me. What kind of person was actually the author’s father?
| A．He was a man of vanity and selfishness. |
| B．He didn’t like to eat with his family. |
| C．He was more painful than selfish. |
| D．He forced his family to eat what he liked. |
The author desired to go to his grandmother’s________.
| A．to see his father | B．for tasty food |
| C．for pocket money | D．to avoid his family |
The underlined word “cure” in Paragraph 4 is the nearest in meaning to “________”．
| A．solution | B．concern |
| C．operation | D．situation |
The author became a nutrition consultant mainly because________.
| A．his father often talked with him about dietary theories |
| B．he was determined to change his own daily habits |
| C．he wanted to study the recipes his grandmother had given him |
| D．his childhood experiences gave him too deep an impression |
What can we learn about the author from the last paragraph?
| A．He often quarreled with his father about food |
| B．His father will tell him his story in the following weeks |
| C．The most he talks about with his father is nourishment |
| D．He often sends recipe cards to his grandmother in return |
The American newspaper publisher Arthur Sulzberger Sr died at the age of 86.Mr Sulzberger led The New York Times for more than three decades，before passing the business to his son.He took over the paper in 1963 when it was in financial trouble，and transformed it into the heart of a multibillion dollar media empire.
His family announced he had died at his home in Southampton，New York State，after a long illness.His son，Arthur Sulzberger Jr，said in a statement that his father，whom he referred to by his childhood nickname of Punch，was “one of our industry’s most admired executives”．“Punch，the old Marine captain who never backed down from a fight，was an absolutely fierce defender of the freedom of the press，” he said.
The New York Times was bought by Mr Sulzberger Sr’s grandfather Adolph Ochs in 1896.During Mr Sulzberger’s tenure，The New York Times won 31 Pulitzer prizes.
Born in New York City,5 February 1926，Sr served in Marine Corps during World War Ⅱ and Korean War，joined The New York Times in 1951 after graduating from Columbia College，took over as publisher in 1963 after his brotherinlaw died suddenly，stepped down in 1997 and passed stewardship to his son，Arthur Sulzberger Jr.
He oversaw a huge circulation boost at the paper，and increased its parent company’s annual revenues (年收入) from $100m in 1963 to $1.7bn by the time he stepped down in 1997.He also led the paper through highlevel clashes with the political establishment.In 1971，The Times published a series of stories saying that politicians had systematically lied over the US involvement in Vietnam.The source was thousands of leaked government documents known as the Pentagon Papers.The Nixon administration demanded that the paper stop publishing the stories on grounds of national security.But the paper refused，and then won the subsequent court case by arguing that the First Amendment of the US Constitution (宪法) guaranteed free speech.The case is seen as a landmark in the history of free speech in the US.Mr Sulzberger said he read more than 7,000 pages of the Pentagon Papers before personally deciding to publish them.
His family still holds a controlling stake (控股权) in The New York Times.He was a strong believer in family ownership of newspapers.He once joked：“My conclusion is simple.Nepotism works.”When did Arthur Sulzberger Sr die?
| A．In 1997. | B．In 2012. |
| C．In 1963. | D．In 1971. |
Punch，the old Marine captain was actually________.
| A．Arthur Sulzberger Jr |
| B．Adolph Ochs |
| C．Arthur Sutzberger Sr’s father |
| D．Arthur Sulzberger Sr |
Which of the following is TRUE according to the passage?
| A．Arthur Sulzberger Sr took over The New York Times from his brotherinlaw. |
| B．Arthur Sulzberger Jr’s grandfather bought The New York Times. |
| C．Arthur Sulzberger Sr resigned when The New York Times was in financial trouble. |
| D．Arthur Sulzberger Jr took over The New York Times after graduating from Columbia College. |
In the political case in the 1970s，Mr Sulzberger________.
| A．failed the case in the end |
| B．lost the controlling stake in The New York Times |
| C．gave in to the government |
| D．succeeded in guarding free speech of the paper |
What does the underlined word “Nepotism” probably refer to?
| A．Friendship. | B．Politics. |
| C．Family ownership | D．Freedom of speech. |
When you make a mistake，big or small，cherish it as it’s the most precious thing in the world.
Most of us feel bad when we make mistakes，beat ourselves up about it，feel like failures，and get mad at ourselves.
And that’s only natural：Most of us have been taught from a young age that mistakes are bad，and we should try to avoid mistakes.We’ve been scolded when we make mistakes—at home，school and work.Maybe not always，but probably enough times to make feeling bad about mistakes an unconscious reaction.
Yet without mistakes，we could not learn or grow.If you think about it that way，mistakes should be cherished and celebrated for being one of the most amazing things in the world：They make learning possible；they make growth and improvement possible.
By trial and error—trying things，making mistakes，and learning from those mistakes—we have figured out how to make electric lights，to paint the ceiling of the Sistine Chapel，and to fly.
Mistakes make walking possible for the smallest toddler，make speech possible，and make works of genius possible.
Think about how we learn：We don’t just consume information about something and instantly know it or know how to do it.You don’t just read about painting，or writing，or computer programming，or baking，or playing the piano，and know how to do them fight away.Instead，you get information about something，from reading or from another person or from observing usually...then you construct a model in your mind...then you test it out by trying it in the real world...then you make mistakes...then you revise the model based on the results of your real world experimentation...and repeat，making mistakes，learning from those mistakes，until you’ve pretty much learned how to do something.
That’s how we learn as babies and toddlers，and how we learn as adults.Mistakes are how we learn to do something new—because if you succeed in something，it’s probably something you already knew how to do.You haven’t really grown much from that success—at most it’s the last step on your journey，not the whole journey.Most of the journey is made up of mistakes，if it’s a good journey.
So if you value learning，if you value growing and improving，then you should value mistakes.They are amazing things that make a world of brilliance possible.Why do most of us feel bad about making mistakes?
| A．Because mistakes make us suffer a lot. |
| B．Because it’s a natural part in our life. |
| C．Because we’ve been taught so from a young age. |
| D．Because mistakes have ruined many people’s careers. |
According to the passage，what is the right attitude to mistakes?
| A．We should try to avoid making mistakes. |
| B．We should owe great inventions mainly to mistakes. |
| C．We should treat mistakes as good chances to learn. |
| D．We should make feeling bad about mistakes an unconscious reaction. |
The underlined word “toddler” in Paragraph 6 probably means________.
| A．a small child learning to walk |
| B．a kindergarten child learning to draw |
| C．a primary pupil learning to read |
| D．a school teenager learning to write |
We can learn from the passage that________.
| A．most of us can really grow from success |
| B．growing and improving are based on mistakes |
| C．we learn to make mistakes by trial and error |
| D．we read about something and know how to do it right away |
The author wants to tell us________.
| A．what you should do when meeting with difficulties |
| B．where you can find your mistakes |
| C．how you can avoid making mistakes |
| D．why you should celebrate your mistakes |
(2014·德州模拟)Some animals will defend their territory by fighting with those who try to invade it.Fighting，however，is not often the best choice，since it uses up a large amount of energy，and can result in injury or even death.Most animals rely on various threats，either through sounds or smells.The songs of birds，the drumming of woodpeckers and the loud calls of monkeys are all warnings that carry for long distances，advertising to possible invaders that someone else’s territory is being approached.Many animals rely on smells to mark their territories or leaving droppings around the territories.Other animals will be warned off the territory without ever meeting with the territory’s defender. 
Sometimes，these warnings may be ignored，and an invader may move accidentally into a neighboring territory，or two animals may meet near the border of their nearby territories.When the two animals meet，they will generally threaten each other with visual (视觉的) displays.These displays will often exaggerate an animal’s size by putting up feathers or fur，or will show off the animal’s weapons.The animals may go through all the behavior of fighting without ever actually touching each other.The displays are generally performed best near the center of an animal’s territory，where it is more likely to attack an invader and where retreating becomes more of a choice.
Actual fighting usually only happens in overcrowded conditions，when resources are not enough.Serious injury can result，and old or sick animals may die，leading to a more balanced population size.Under most natural conditions，territoriality is an effective way of maintaining a healthy population.The study of social behaviors such as territoriality in animals may also help us to understand human society.What topic is the passage mainly involved in?
| A．What animals’ territory is usually like. |
| B．How animals deal with different threats. |
| C．How animals defend their territory. |
| D．Where animal fights take place frequently. |
For most animals，what’s their first response to the possible invaders to defend their territory?
| A．Fighting in groups. |
| B．Threatening and warning. |
| C．Escaping before being hurt. |
| D．Asking partners for help. |
What does the underlined word “exaggerate” in the second paragraph mean?
| A．enlarge | B．change |
| C．shake | D．shrink |
An actual fight will happen when________.
| A．animals meet near the border of their territories |
| B．the invader enters the defender’s territories |
| C．the defender notices the invader smaller than itself |
| D．the living resources are limited in the territory |
The last paragraph tells us that territoriality has an influence on the________of the animals.
| A．communication | B．condition |
| C．population | D．migration |
Global Positioning Systems (全球定位系统) are now a part of everyday driving in many countries.These satellitebased systems provide turnbyturn directions to help people get to where they want to go.However，they can also cause a lot of problems，send you to the wrong place or leave you completely lost.Many times，the driver is to blame.Sometimes a GPS error is responsible.Most often，says Barry Brown，it is a combination of the two.
Barry Brown is with the Mobile Life Centre in Stockholm，Sweden.He told us about an incident involving a friend who had flown to an airport in the eastern United States.There he borrowed a GPSequipped car to use during his stay.Mr Brown says，“They just plugged in an address and then set off to their destination.And，then it wasn’t until they were driving for thirty minutes that they realized they actually put in a destination back on the West Coast where they lived.They actually put their home address in.So again，the GPS is kind of ‘garbage in garbage out’．”
Mr Brown says this is a common human error，but what makes the problem worse has to do with some of the shortcomings，or failures，of GPS equipment.He says，“One problem with a lot of the GPS units is they have a very small screen and they just tell you the next turn.Because they just give you the next turn，sometimes that means that it is not really giving you the overview that you would need to know that it’s going to the wrong place.”
Mr Brown says，“One of the things that struck us，perhaps the most important thing was that you have to know what you’re doing when you use a GPS.There are these new skills that people have developed.There are these new competencies (资格) that you need to have to be able to use a GPS because they sometimes go wrong.This goes against a common belief that GPS systems are for passive drivers who lack navigational skills.”
Barry Brown says to make GPS systems better we need a better understanding of how drivers，passengers and GPS systems work together.According to Barry Brow，in most cases，________are blame for the problems.
| A．human errors |
| B．GPS errors |
| C．errors caused by both drivers and GPS |
| D．errors caused by putting in a wrong address |
The example of Barry Brown’s friend is used to show that________.
| A．GPS is nothing but garbage |
| B．GPS is still not accurate enough |
| C．it is difficult for drivers to use GPS equipment |
| D．sometimes drivers are responsible for the problem |
It can be inferred from the second paragraph that________.
| A．it’s impossible to drive from the east to the west in the US |
| B．Barry Brown’s friend went to Stockholm，Sweden by plane |
| C．given wrong instructions，the GPS will produce wrong results |
| D．GPS systems are for passive drivers who lack navigational skills |
Which of the followings is one of the shortcomings of GPS equipment?
| A．It just tells the driver to turn once at a time. |
| B．It gives the driver the overview. |
| C．Its screen is too small to be seen clearly. |
| D．It is only suitable for passive drivers. |
What’s the main idea of the text?
| A．GPS systems are helpful for drivers. |
| B．Driving with GPS can be difficult to navigate (导航)． |
| C．Drivers should understand how GPS systems work. |
| D．Drivers should learn to use GPS systems correctly. |