Winter begins in the north on December 22nd. People and animals have been doing what they always do to prepare for the colder months. Squirrels (松鼠), for example, have been busy gathering nuts from trees. Well, scientists have been busy gathering information about what the squirrels do with the food they collect.
They examined differences between red squirrels and gray squirrels in the American state of Indiana. The scientists wanted to know how these differences could affect the growth of black walnut (黑胡桃) trees. The black walnut is the nut of choice for both kinds of squirrels. The black walnut tree is also a central part of some hardwood forests.
Rob Swihart of Purdue University did the study with Jake Goheen, a former Purdue student now at the University of New Mexico. The two researchers estimate that several times as many walnuts grow when gathered by gray squirrels as compared to red squirrels. Gray squirrels and red squirrels do not store nuts and seeds in the same way. Gray squirrels bury nuts one at a time in a number of places. But they seldom remember where they buried every nut. So some nuts remain in the ground. Conditions are right for them to develop and grow the following spring. Red squirrels, however, store large groups of nuts above ground. Professor Swihart calls “death traps for seeds”.
Gray squirrels are native to Indiana. But Professor Swihart says their numbers began to decrease as more forests were cut for agriculture. Red squirrels began to spread through the state during the past century.
The researchers say red squirrels are native to forests that stay green all year, unlike walnut trees. They say the cleaning of forest land for agriculture has helped red squirrels invade Indiana. Jake Goheen calls them a sign of an environmental problem more than a cause.The study done by Rob Swihart and Jake Goheen is to ________ .
| A．find out the living conditions for squirrels |
| B．do something to get rid of squirrels |
| C．learn squirrels’ influence on black walnut trees |
| D．save the forests in the American state of Indiana |
The difference between gray squirrels and red squirrels mainly lies in ________ .
| A．the way they gather the walnut |
| B．the place they store the walnuts |
| C．the time they have winter sleep |
| D．the place they have winter sleep |
When Professor Swihart says “death traps for seeds”, he actually means that ________ .
| A．nuts above the ground will not develop into plants |
| B．red squirrels eat more nuts than gray squirrels |
| C．gray squirrels and red squirrels will have severe fights |
| D．seeds can be traps for other animals in the forest |
According to the passage, which of the following is true?
| A．Gray squirrels do more harm to the forest than red squirrels. |
| B．Red squirrels and gray squirrels have helped the spread of walnut trees. |
| C．The cleaning of forest land benefits red squirrels directly. |
| D．The black walnut is equally attractive to both gray and red squirrels. |
Britain is facing a sharp rise in its rat population as growing numbers of people leave what they cannot finish of the fast food in the street, an environment group warned .Keep Britain Tidy said the rats were stopping their traditional hunts underground and were running across the streets, invited by burgers, pizzas and crisps left behind by man. “The rat population is on the rise and soon it’ll be as common to see a rat on our street as it is to see a dog or a cat,” said group Director, Sue Nelson. The practice of spreading fast food litter and scraps on the street rather than in the dustbin—with young men the worst group—was behind the rise. According to the National Rodent Survey in 2005, Britain’s rat population has grown by nearly one quarter since 2000 and is now estimated at 60 million, two million more than the human population. On average a rat can give birth every 24-28 days and just a single pair of rats can produce a family of 2,000 a year. Around 200 people a year get Weil’s Disease –an infection which can lead to liver or kidney（肝肾）failure and eventually death and which is carried in rats’ waste. To attract people’s attention to the problem, Keep Britain Tidy produced a cinema ad with a title “How close do you want them to get?” The ad gave a shocking image of a young woman sleeping in a bed of rats--reminding people of the terrible scene from James Herbert’s classic horror tale The Rats, in which rats begin to hunt for humans.Where did the rats use to search for food?
| A．In the street | B．Under the ground |
| C．From the dustbins | D．In burger shops |
What was the rat population in Britain in 2000 according to the writer?
| A．Around 60 million | B．Around 45 million |
| C．Around 38 million | D．Around 2 million |
We may infer from the passage that ______________.
| A．Weil’s Disease will finally end the world |
| B．pizzas and crisps will become unpopular |
| C．rats will put human beings’ life in danger |
| D．young people should take the responsibility for the rat population |
By writing the passage, the author tries to _____________.
| A．close some of the burger and pizza restaurants |
| B．draw the public attention to the problem of rats |
| C．prevent the rats from growing up |
| D．making an advertisement for the classic horror tale The Rats |
A Charlotte, N.C., man was charged with first-degree murder of a 79-year-old woman whom police said he scared to death. In an attempt to evade policemen after a bank robbery, the Associated Press reports that 20-year-old Larry Whitfield broke into the home of Mary Parnell. Police say he didn’t touch Parnell but that she died after suffering a heart attack that was caused by terror. Can the guy be held responsible for the woman’s death? Prosecutors(公诉人) said that he can under the state’s murder rule, which allows someone to be charged with murder if he or she causes another person’s death while committing or fleeing from a severe crime like robbery—even if he or she doesn’t kill someone on purpose.
But, medically speaking, can someone actually be frightened to death? We asked Martin Samuels, chairman of the neurology department at Brigham and Women’s Hospital in Boston.
Absolutely, no question about it.
The body has a natural protective method called the fight-or-flight response(战或逃反应), which was originally described by Walter Cannon，the chairman of Harvard University’s physiology department from 1906 to 1942. If, in the wild, an animal is faced with a life-threatening situation, the autonomic nervous system responds by increasing heart rate, increasing blood flow to the muscles, and slowing digestion, among other things. All of this increases the chances of succeeding in a fight or running away from an aggressive beast. This process certainly would be of help to primitive humans. However, in the modern world there is obvious decline of the fight-or-flight response.
The autonomic nervous system uses the chemical messenger to send signals to various parts of the body to activate the fight-or-flight response. This chemical is toxic in large amounts; it damages the organs such as the heart,
lungs, liver and kidneys. It is believed that almost all sudden deaths are caused by damage to the heart. There is almost no other organ that would fail so fast as to cause sudden death. Kidney failure, liver failure, those things don’t kill you suddenly.
By the way, any strong positive or negative emotions such as happiness or sadness can cause the same result. There are people who have died in intercourse or in religious passion. There was a case of a golfer who hit a hole in one, turned to his partner and said, “I can die now”, and then he dropped dead. For about seven days after the 9/11 terrorist attacks on the World Trade Center and Pentagon there was an increase of sudden cardiac death among New Yorkers.Why the Charlotte, N.C., man was charged?
A. Because he threatened the policemen to kill an old woman.
B. Because he caused an old woman’s terror and she died.
C. Because he beat an old woman and caused her heart attack
D. Because he murdered an old woman while robbing a bank.What is Martin Samuels’ attitude to the possibility of being frightened to death?
| A．Approval. | B．Disapproval. | C．Doubtful. | D．Indifferent. |
Which of the following about the fight-or-flight response is true?
A. The fight-or-flight response was raised and proved by Martin A. Samuels.
B. It is a natural protective method that can’t be found in all creatures but humans.
C. The ancient humans had a superior fight-or-flight response than modern ones.
D. The fight-or-flight response is beneficial to both our actions and organs. What activity can we infer is less likely to damage the organs?
| A．Winning a big lottery. | B．Missing a dead family. |
| C．Watching a horror movie. | D．Listening to a sweet song. |
The purpose of the passage is_________.
| A．to explain why people will die of a heart attack |
| B．to offer some advice on protecting us from heart failure |
| C．to compare different kinds of feelings to cause a death |
| D．to show strong emotions can cause a sudden death |
When I was growing up, I had an old neighbor named Dr. Gibbs. He didn’t look like any doctor I’d ever known. He never yelled at us for playing in his yard. I remember him as someone who was a lot nicer than most of the adults in our community.
When Dr. Gibbs wasn’t saving lives, he was planting trees. His house sat on ten acres, and his life’s goal was to make it a forest.
The good doctor had some interesting theories concerning plant care and growth. He never watered his new trees, which flew in the face of conventional wisdom. Once I asked why. He said that watering plants spoiled them so that each successive tree generation would grow weaker and weaker. So you have to make things rough for them and weed out(淘汰) the weaker trees early on. He talked about how watering trees made for shallow roots, and how trees that weren’t watered had to grow deep roots in search of moisture. I took him to mean that deep roots were to be treasured.
So he never watered his trees. He planted an oak and, instead of watering it every morning, he beat it with a rolled-up newspaper. Smack! Slap! Pow! I asked him why he did that, and he said it was to get the tree’s attention.
Dr. Gibbs passed away a couple of years after I left home. Every now and again, I walked by his house and looked at the trees that I’d watched him plant some twenty-five years ago. They’re extremely tall, big and robust since they have deep roots now. However, the trees in my garden trembled in a cold wind although I had watered them for several years.
It seems that adversity(逆境) and suffering benefit these trees in ways comfort and ease never could. I stood there deep in thought.
Every night before I go to bed, I check on my two sons. I stand over them and watch their little bodies, the rising and falling of life within. I often pray for them. Mostly I pray that their lives will be easy. But I think that it’s time to change my prayer(祷词) because now I know my children are going to encounter hardship.According to Dr. Gibbs’ theories, trees will become weaker if they _________.
| A．are lack of care | B．are watered | C．are weeded out | D．are beaten |
According to Para.3 and Para.4, we can infer that Dr. Gibbs’ motto(座右铭) may be .
| A．“Seeing is believing” | B．“Put everything in proper use” |
| C．“Practice makes perfect” | D．“No pain, no gain” |
The underlined word robust in Para.5 most probably means _________.
| A．strong | B．strange | C．deep | D．old |
Which of the following may be the author’s best prayer for his two sons now?
| A．I wish them strong wings, with which they can fly higher and touch the sky. |
| B．I wish them nice fortune so that they can meet people like Dr. Gibbs in the future. |
| C．I wish them deep roots into the earth since the rains fall and the winds blow often. |
| D．I wish them great shades under the tree since the sunlight is always sharp and bitter. |
Which of the following can be the best title of this passage?
| A．A Nice Doctor | B．The Deep Roots | C．Adversity and Suffering | D．My Childhood Memory |
Would you like to be a king or queen? To have people waiting on you hand and foot? Many Americans experience this royal treatment every day. How? By being customers. The American idea of customer service is to make each customer the center of attention. Need proof? Just listen to the commercials. Most of them sound like the McDonald’s ad: “We do it all for you.” Actually, not all stores in America roll out the red carpet for their customers. But wherever you go, good customer service means making customers feel special.
People going shopping in America can expect to be treated with respect from the very beginning. Most places don’t have a “furniture street” or a “computer road” which allow you to compare prices easily. Instead, people often “let their fingers do the walking” through the store hot lines. From the first “hello”, customers receive a satisfying response to their questions. This initial contact can help them decide where to shop.
When customers get to the store, they are treated as honored guests. Customers don’t usually find store clerks sitting around watching TV or playing cards. Instead, the clerks greet them warmly and offer to help them find what they want. In most stores, the clear signs that label each department make shopping a breeze. Customers usually don’t have to ask how much items cost, since prices are clearly marked. And unless they’re at a flea market or a yard sale, they don’t bother trying to bargain.
When customers are ready to check out, they find the nearest and shortest checkout lane. But as Murphy’s Law would have it, whichever lane they get in, all the other lanes will move faster. Good stores open new checkout lanes when the lanes get too long. Some even offer express lanes for customers with 10 items or less. After they pay for their purchases, customers receive a smile and a warm “thank you” from the clerk. Many stores even allow customers to take their shopping carts out to the parking lot. That way, they don’t have to carry heavy bags out to the car. By quoting (引用) the McDonald’s ad: “We do it all for you”, the author intends to_______.
A．suggest that customers believe what commercials say deeply |
| B．show readers the American idea on good customer service |
| C．express all the stores pay much attention to the customers |
| D．persuade readers to choose the stores with ads correctly |
In the USA, what may you do at first if you want to do some shopping?
| A．To visit a professional street with lots of similar stores. |
| B．To compare prices in many shops in the same street. |
| C．To make phone calls and get better shopping choices. |
| D．To receive other customers’ answers to the questions. |
The underlined words “a breeze” in Para.3 most probably means _________.
| A．an easy job | B．a trouble | C．a funny thing | D．a boring task |
Which of the followings shows American stores offer convenience to customers in this passage?
| A．The store clerks don’t usually sit around watching TV or playing cards. |
| B．Some stores offer price bargain to the customers like a yard sale. |
| C．The clerks give customers a smile and a warm “thank you” after paying. |
| D．Some stores open new checkout lanes when the lanes are crowded. |
Which of the following can be the best title of this passage?
| A．Customer Service in America | B．Excellent Stores in America |
| C．Shopping Rules in America | D．Being King or Queen in America |
“Any time! Any where! Decades ago there was no such thing” – “Communication”.
Then, September 7th
1987, the global system for mobile communication or GSM was born. And international agreements that laid out the standards, regulations and practices gave rise to a global mobile phone industry.
To be honest, the world’s first mobiles were not so attractive and the range of effectiveness wasn’t very good. But they became a must-have among those wealthy people who could afford that. However, by advantage of GSM which has many different elements to it, we can all enjoy the ability to go around the world in 217 countries, land in that country and know that a phone would work.
There are other cell phone systems using different technology in the world. The majority of the United States and parts of South America have been using something called CDMA which is very rare in Europe. In some Asian countries like China, GSM and CDMA both exist at the same time. But the GSM Association claims 85% of the global mobile phone market. They estimated there are now about 2.5 billion different users who make more than 7 trillion minutes of calls everyday, and that’s not all.
20 years later, the mobile phone is so much more than just a phone. You can use it to send text messages, take pictures, show video, even surf the internet.
“The phone itself is involved from just being a communication tool, to be a tool for round-the-clock connectivity, you can not live without it even in a minute.” Mobile consultant Nick Lane also points out with so many customized styles and features, your mobile phone will become a symbol of you.
Where will the global mobile phone industry be in another 20 years? Certainly, there will be more connections than better coverage. As for where else technology will take us, one can only imagine.According the passage, we can know that GSM is ____________.
| A．a global-used mobile phone | B．a global mobile phone industry |
| C．a global mobile phone association | D．a global mobile communication system |
It's most difficult to find a CDMA mobile phone in ____________.
| A．the United States | B．South America | C．Europe | D．China |
From this passage, we can infer that ____________.
| A．as soon as the first mobiles appeared, they became popular and many people have one |
| B．with a GSM mobile phone, you can make a phone call in most parts of the USA |
| C．there are only two cell phone systems in the whole world: GSM and CDMA |
| D．most of the mobile phone users in the world now are using the GSM mobile phone |
By pointing out “your mobile phone will become a symbol of you”, what does Nick Lane want to tell us about the mobile phone in the future?
| A．You can have a mobile phone with the unique look and functions as you like. |
| B．Others can find us without any difficulties if we carry our mobile phone. |
| C．The mobile phone can be used as a permit when you enter some places. |
| D．The mobile phone we carry can show others how wealthy we are. |
What does the writer feel about the GSM development in the following 20 years?
| A．Satisfied. | B．Worried. | C．Confident. | D．Confused. |