During the years after the terrorist attack on the World Trade Center, structural engineers have been trying hard to solve a question that would otherwise have been completely unthinkable: Can building be designed to stand catastrophic blasts (攻击；爆破) by terrorists?
Soon after the terrorist attacks on the twin towers, structural engineers from the University at Buffalo and the Multidisciplinary Center for Earthquake Engineering Research (MCEER) traveled to ground zero as part of a project
funded by the National Science Foundation. They spent two days beginning the task of formulating (构思) ideas about how to design such structures and to search for clues on how to do so in buildings that were damaged, but still are standing.
“Our objective in visiting ground zero was to go and look at the buildings surrounding the World Trade Center, those buildings that are still standing, but that sustained damage,” said Mr. Bruneau, Ph.D. “Our immediate hope is that we can develop a better understanding as to why those buildings remain standing, while our long-term goal is to see whether earthquake engineering technologies can be married to existing technologies to achieve enhanced performance of buildings in the event of terrorist attacks,” he added.
Photographs taken by the investigators demonstrate the monumental damage to the World Trade Center towers and buildings nearby. One building a block away from the towers remains standing, but was badly damaged. “This building is many meters away from the World Trade Center and yet we see a column (柱子) there that used to be part of that building,” explained A. Whittaker, Ph.D. “The column became a missile that shot across the road, through the window and through the floor.”
The visit to the area also brought some surprises, according to the engineers. For example, the floor framing (框架) system in one of the buildings was quite strong , allowing floors that were pierced by tons of falling debris (残砾) to survive. “Good framing systems may provide a simple, but reliable strategy for blast resistance,” he added. Other strategies may include providing alternate paths for gravity loads in the event that a load-bearing column fails. “We also need a better understanding of the mechanism of collapse,” said A. Whittaker. “We need to find out what causes a building to collapse and how you can predict it.”
A. Reinhorn, Ph.D. noted that “earthquake shaking has led to the collapse of buildings in the past. Solutions developed for earthquake-resistant design may apply to blast engineering and terrorist-resistant design. Part of our mission now is to transfer these solutions and to develop new ones where none exist at present.”The question raised in the first paragraph is one _____ .
| A．that was asked by structural engineers a month ago |
| B．that is too difficult for structural engineers a month ago |
| C．that was never thought of before the terrorist attack |
| D．that terrorists are eager to find a solution to |
The column mentioned by Dr. Whittaker _____ .
| A．was part of the building close to the World Trade Center |
| B．was part of the World Trade Center |
| C．was shot through the window and the floor of the World Trade Center |
| D．damaged many buildings near the World Trade Center |
A surprising discovery made by the investigators during their visit to ground zero is that _____.
| A．floors in the faraway buildings remained undamaged |
| B．some floor framing systems demonstrate resistance to explosion |
| C．complex floor framing systems are more blast resistant |
| D．floors in one of the buildings were pierced by tons of debris |
What Dr. Reinhorn said in the last paragraph may imply all the following EXCEPT that _____.
| A．blast engineers should develop new solutions for terror-resistant design |
| B．blast engineering can borrow technologies developed for terror-resistant design |
| C．solutions developed for earthquake-resistant design may apply to terrorist-resistant design |
| D．blast engineering emerges as a totally new branch of science |
British and American scientists are raising genetically modified(转基因的) pigs in the hope of providing organs for transplant(移植) to humans, the project leader wrote in a newspaper Sunday.
Scientists in London and California have begun conducting the genetic experiments to find a solution to record–long waiting lists for organ transplants, Robert Winston said in an opinion piece written for Britain's Sunday Times.
In Britain alone, around 8,000 patients are waiting for a transplant.
"People needing a new heart or liver are waiting for someone else to die – usually a violent death in a traffic accident," Winston wrote in the newspaper. He said his team was "trying to modify pigs so their organs might save the lives of humans."
The scientists are introducing human genes into the animals to reduce the chances of the organs being rejected by patients, as has been common in previous attempts to use animal tissues, said Winston, who heads the Institute of Reproductive and Developmental Biology at London's Hammersmith Hospital.
Working with Dr. Carol Redhead of the California Institute of Technology, Winston's team has injected human genes directly into male piglets(猪仔), adding them to the animal's sperm(精子).
He said that pigs involved in experiments had successfully produced transgenic sperm, but acknowledged that British and European laws had prevented the team from using the pigs to mate.
The Sunday Times newspaper reported that the experiments would be moved to the United States following difficulties with funding and regulations in Britain. It said the pigs would be bred in Missouri.
"Our U.S. friends will benefit from our technology and the income we might have produced for Britain will be lost," Winston wrote.
Some scientists have previously blamed the idea of using animal organs for human transplant, saying the technique risks spreading animal viruses to humans. Winston said his research project is attempting to breed virus-free pigs.
1. Scientists are introducing human genes into the animals to ____________.
| A. make the organs healthier |
B. reduce the pain of animals |
| C. make the organs live longer |
D. reduce the chances of rejection |
2. Some scientists have blamed the idea of using animal organs for human transplant because ____________.
| A. the technique is not perfect now |
| B. humans may be infected with animal viruses |
| C. it is against laws and regulations |
| D. it may cause a conflict between humans and animals |
3. According to Winston, it seems ___________ to Britain to move the experiments to the United States.
| A. a pity |
B. a pride |
C. a disaster |
D. a good idea |
4. It can be inferred from the passage that ____________.
| A. animal organs are commonly used for human transplant now |
| B. lots of patients need animal organ transplants now |
| C. examples of the animal tissues being rejected have happened |
| D. it is not safe to use animal organs for human transplant |
TEENSGIVING in SPRING 2010
Frequently Asked Questions
What is TEENSGIVING?
TEENSGIVING is an exciting event where hundreds of New York City teens gather together annually for a remarkable day of community service. This year, TEENSGIVING in SPRING 2010 participants will once again better New York City and impact thousands of lives!
When is TEENSGIVING in SPRING 2010?
SUNDAY, APRIL 25, 2010
Where is TEENSGIVING?
All over New York City. Everyone will meet at the 92nd Street Y (92nd and Lexington) at 9:00 AM for the event kick-off. Then, all TEENSGIVING volunteers will disperse across the city to work with our partnering agencies where they will make a HUGE difference (and have fun!).
Who participates in TEENSGIVING?
Hundreds of teenagers from around the city. Teens come from the 92nd Street Y, various city schools, youth groups, and organizations in the area. In addition, many adult volunteers (ages 21 and older) will donate their time to TEENSGIVING in SPRING 2010.
What projects do participants do at the agencies?
Sample projects include painting park benches, planting gardens, visiting and playing with underprivileged children, assembling craft kits for children in hospitals, assisting at animal shelters, working at soup kitchens, delivering meals and celebrating with families at homeless shelters.
Do I get anything for participating in TEENSGIVING?
Yes! Everybody benefits! Teen volunteers will receive *6 hours* of community service credit, good towards honor society, high school graduation and college application requirements. Adult volunteers will be “thanked” with a light breakfast, a gift certificate for their troubles, and the satisfaction of helping our city’s youth contribute to their community. In addition, all teen and adult volunteers will receive a cool TEENSGIVING in SPRING 2010 T-shirt.
This sounds awesome! How do I register for TEENSGIVING in SPRING 2010?
Interested teens and/or adults should e-mail the TEENSGIVING Coordinator Josh Hyman at jhyman@92Y.org (subject: TEENSGIVING) to receive more information and to register for this fantastic event!
**Teens can also contact their school’s Community Service Advisor**
TEENSGIVING is sponsored by the 92nd Street Y.
1. TEENSGIVING is an event held ____________.
| A. from time to time |
B. every year |
C. every two years |
D. twice a year |
2. Teenagers may do the following in the event EXCEPT ____________.
| A. watering flowers |
B. cooking |
C. cleaning streets |
D. taking care of animals |
3. An adult volunteer may get ______ for his time devoted to TEENSGIVING in SPRING 2010.
| A. community service credit and a T-shirt |
| B. a high school certificate and a light breakfast |
| C. a T-shirt and a gift certificate |
| D. a gift certificate and community service credit |
4. The writer’s purpose in writing the passage is to __________.
| A. inform readers of some frequently asked questions |
| B. introduce TEENSGIVING in SPRING 2010 to readers |
| C. encourage readers to ask more questions about TEENSGIVING |
| D. call on readers to participate in TEENSGIVING in SPRING 2010 |
第二部分：阅读理解（第一节20小题，第二节5小题；每小题2分，满分50分）
第一节：阅读下列短文, 从每题所给的四个选项 (A、B、C和D) 中, 选出最佳选项。
I'm from the South Bronx. At 7, my neighborhood was the beginning and end of my universe. It was a small town to me. Everyone knew each other, so if you got into trouble in school, chances are your mom knew about it before you got home. I felt watched over and safe.
But just before I turned 8, things began to change. I watched two buildings on my block burn down. I remember seeing my neighbor Pito go up and down the fire escape to get people out. Where were the firemen? Where was the truck? Somebody must have called them.
That same summer, after serving two tours in Vietnam, my brother was killed in the South Bronx. He was shot above the left eye and died instantly.
People who could moved out of the neighborhood, and all I wanted to do was get out, too. I used education to get away from there and got good at avoiding the topic of where I was from. To be from the South Bronx meant that you were not a good person. It felt like a stain.
After college, I didn't want to come back to the South Bronx, but in order to afford graduate school, I had to. I was almost 30 and could only afford to live at my parents' home. It felt like a defeat, and I hated it.
At the same time, the city was planning a huge waste facility here, and no one seemed to care — including many of us who lived here. They were like, "Well, it's a poor community; what's the difference?"
I was very angry. It drove me to act. It moved my spirit in a way that I didn't know was possible. And it changed my beliefs — it changed the way I felt about myself and my community. I worked hard with others who felt the same way, and together, we defeated the plan.
After that, I realized it's just as important to fight for something as it is to fight against something. So we dreamed up a new park on the site of an illegal waste dump — and after many community clean-ups, along with $3 million from the city, we have one. And it's a glory. It was the seed from which many new plans for our community have grown.
Today, the South Bronx is no longer a stain; it's a badge(象征) of honor for me. I believe that where I'm from helps me to really see the world. Today, when I say I'm from the South Bronx, I stand up straight. This is home, and it always will be.
1Paragraphs 2 and 3 make the readers believe ____________.
| A. the author felt watched over and safe |
| B. he author’s brother was a bad man |
| C. the author’s neighbor Pito was braver than a fireman |
| D. the author felt his hometown was not a safe place to live in |
2.The author went back to the South Bronx after college because ____________.
| A. he couldn’t afford to live without his parents’ help |
| B. he loved his hometown very much |
| C. he was defeated in studies at college |
| D. he almost reached the age of 30 |
3.The underlined sentences(Paragraph 2) imply that ____________.
| A. the author wondered where the firemen and the truck were |
| B. the author wanted someone to call the firemen |
| C. the firemen didn’t come to help although called |
| D. the firemen didn’t find a place to park the truck |
4.What does the author want to convey in the passage?
| A. Great changes have taken place in the South Bronx. |
| B. The South Bronx is a beautiful place. |
| C. You can make a difference to your hometown if you act. |
| D. Everyone should love his hometown. |
We show an amazing tolerance for a form of pollution that is a growing problem: noise. Airplane traffic is increasing by five percent a year. Urban noise is doubling every ten years. By air, land and sea, we are facing an onslaught of noise that is threatening our ability to live in this world. We have granted ourselves the right to make noise. But what about our responsibilities? Have we developed a sense of acoustic responsibility?
The evidence suggests that we have not. Many people seem to believe they have an unlimited right to make noise with cars and motorbikes, and with loud music at home and in the street. In some countries measures have been taken to force people to make less noise. In Britain, for example, a law has been passed preventing people from disturbing their neighbors with music at night.
It is widely accepted that we should deal with our rubbish in a responsible way Noise is in reality a particularly insidious form of rubbish. It destroys community life, pursues us into our homes, keeps us from sleeping and is the cause of many stress-related illnesses, as well as hearing loss. Our acoustic environment belongs to all of us. Everyone has the right to use it, but no one has the right to abuse it. Let’s start using it responsibly.
1. The underlined word “acoustic” in the first paragraph probably means ________.
A. environment B. pollution C. sound D. rubbish
2. Which of the following statements is NOT correct?
A. Nowadays everyone thinks it’s all right to make noise.
B. British law protects people from their neighbors’ music at night.
C. The level of noise produced in cities is twice as high now as ten years ago.
D. Noise can sometimes cause hearing loss.
3. The passage is probably written to _______.
A. introduce acoustic responsibility B. call for people to make less noise
C. compare rubbish and noise D. describe people’s attitude to noise
Earthquakes are the shaking, rolling or sudden shock of the earth’s surface. Earthquakes happen along "fault lines" in the earth’s crust. Earthquakes can be felt over large areas although they usually last less than one minute. Earthquakes cannot be predicted -- although scientists are working on it!
Most of the time, you will notice an earthquake by the gentle shaking of the ground. You may notice hanging plants swaying or objects wobbling on shelves. Sometimes you may hear a low rumbling noise or feel a sharp jolt. A survivor of the 1906 earthquake in San Francisco said the sensation was like riding a bicycle down a long flight of stairs.
The intensity of an earthquake can be measured. One measurement is called the Richter scale. Earthquakes below 4.0 on the Richter scale usually do not cause damage, and earthquakes below 2.0 usually can’t be felt. Earthquakes over 5.0 on the scale can cause damage. A magnitude 6.0 earthquake is considered strong and a magnitude 7.0 is a major earthquake. The Northridge Earthquake, which hit Southern California in 1994, was magnitude 6.7.
Earthquakes are sometimes called temblors, quakes, shakers or seismic activity. The most important thing to remember during an earthquake is to DROP, COVER and HOLD ON. So remember to DROP to the floor and get under something for COVER and HOLD ON during the shaking.
1. Which statement about earthquakes is not correct?
A. Earthquakes are the result of the sudden shock of the earth’s surface.
B. Earthquakes usually can be felt because they can last for a long time.
C. There are usually some signs for people to notice an earthquake.
D. People can feel an earthquake over 6.0 because it is very strong.
2. According to the passage, when the earthquake happened, a survivor of the 1906 earthquake in San Francisco_______.
A. was riding a bicycleB. was just climbing the stairs
C. heard a low rumbling noise D. felt like riding a bicycle
3. What can be inferred from the passage?
A. Most of the time, people can not feel or predict the earthquakes.
B. Earthquakes are sometimes called temblors, quakes shakers or seismic activity.
C. The Northridge Earthquake in Southern California in 1994 caused severe damage.
D. When an earthquake happens, it is important to drop on the floor immediately.