Detectives often look for footprints when they try to solve crimes. Scientists use footprints, too—dinosaur footprints when they try to figure out how dinosaurs lived and moved.
Dinosaurs died out about 65 million years ago. Today scientists work to solve the mysteries of these ancient animals.
Footprints, or tracks(脚印), are an important way to learn about dinosaurs. Christian Meyer of the Natural History Museum in Basel, Switzerland, calls dinosaur tracks “the closest thing to a movie” of dinosaurs.
“They tell us something about the size of the animal, the way they were walking…they tell us something about their speed,” Meyer said.
Tracks also show that dinosaurs sometimes traveled in groups. Traveling in groups probably helped dinosaurs protect themselves from enemies. Plus, some meat-eating dinosaurs may have hunted in groups, much like wolves do today. Bein
g in a group could help dinosaurs work together to kill large animals.
Dinosaur footprints can be as small as a few inches across, but they can also be as big as a few feet across. Dinosaur footprints have been found throughout the world at ove
r 1,500 sites, including a T. Rex footprint in New Mexico. “Trackways” are groups of footprints.
And scientists aren’t the only ones finding dinosaur tracks—kids can, too! Eleven-year-old Mark Turner and nine-year-old Daniel Helm discovered dinosaur tracks in British Columbia, anada. Soon scientists began studying the tracks.
Scientists and other people interested in studying dinosaurs are working to save the trackways from activities like construction and mining.The passage mainly tells us that_______.
A. there were really dinosaurs on the earth millions of years ago
B. dinosaurs were the most frightening animals in the past
C. dinosaur footprints are important in learning about dinosaurs
C. why dinosaurs died out millions of years agoBy studying footprints scientists can know the following EXCEPT _______.
| A．how big the dinosaur was | B．what color the dinosaur was |
| C．how fast the dinosaur could run | D．how the dinosaur walked |
By working in groups, some meat-eating dinosaurs_______.
| A．made the hunting of large animals easily |
| B．could travel a long way without being lost |
| C．could protect themselves from being hunted by wolves |
| D．could get to a place faster |
From the last paragraph we can infer that some human activities like mining_______.
| A．are helpful to the study of dinosaurs |
| B．can help scientists solve many mysteries |
| C．can lead to the discovery of the footprints |
| D．can destroy the footprints of the dinosaur |
My husband Ollie had retired from teaching and we were making plans to travel together to Florida. Then he was terribly ill and became very weak, hardly able to speak. Weeks passed and it became clear that Ollie was near death, but I prayed day and night that he could get better.
One of us was always in Ollie’s hospital room—either me, or our grown children, Bruce and Karen. One day, in his broken and weak speech, Ollie told Bruce, “Go home. You should be with Gwen.” Gwen was Bruce’s wife. They had been married for six years and lived hundreds of miles away. Gwen was about to have a baby. We felt an extra sadness, knowing Ollie would never see his first grandchild.
“I don’t want to leave you, Dad,” Bruce said. Ollie repeated, “You should be with Gwen.” Reluctantly, Bruce left. “When the baby comes,” he promised Ollie, “you will be the first to know.” A few days later, around 2 p.m., Ollie awoke from a sleep. He turned and looked at me. I sat close to hear his weak words. “The baby is coming now. It’s a boy,” he said. For a moment his eyes were filled with tears. Then he went back to sleep again. Not long after that, Karen ran into the room. “Bruce called,” she said, a smile lighting her face. “Gwen gave birth to a healthy baby boy around two o’ clock.”
Ollie smiled; he had been the first to know. That night, Ollie died in his sleep.Ollie didn’t travel to Florida because________.
| A．he was too weak to travel |
| B．he could hardly be able to speak |
| C．he could not afford the trip |
| D．he was waiting for his grandchild to be born |
Why did Ollie want Bruce to be with Gwen?
| A．Ollie thought it was too much trouble for Bruce to stay at hospital. |
| B．Ollie wanted Bruce to bring the baby along as soon as it was born. |
| C．Ollie didn’t want his son to be absent when his baby was born. |
| D．Ollie couldn’t bear his son seeing him dying with a broken heart. |
The underlined word in Paragraph 3 is closest in meaning to_______.
| A．Disappointedly | B．Unwillingly | C．Excitedly | D．Immediately |
What can we learn from the passage ?
| A．Ollie and his wife had planned to settle in Florida. |
| B．Ollie cared for his son more than his daughter. |
| C．Ollie was sad about not being able to see his first grandchild. |
| D．Ollie died happy and in peace. |
The following notice is posted in the bus station.
Time Table:
●Buses leave the Railway Station, New York City, from7:00 a.m. and every half-hour thereafter, until 11:30 p.m. (7 days a week)
●Buses leave Brennan Station 20 minutes before and after every hour from 6:20 a.m. to 11:40 p.m. (7 days a week)
●Evening rush hours (5:00 p.m. to 7:00 p.m.); Buses leave the Railway Station, New York City every 15 minutes.(Monday—Friday)
●Holidays Buses leave every hour on the hour, each direction.(Trip time:30minutes each way)
●All tickets must be bought at Window 12, the Railway Station, New York City, or at the Brennan Station Window BEFORE boarding buses.If you want to take a bus in the evening rush hour, you should take the ____ in the Railway Station, New York City on Monday.
| A．6:20 p.m. | B．5:45 p.m. | C．8:00 p.m. | D．7:15 p.m. |
You’ll go back home from work in Brennan. Which of the following bus will you take?
| A．7:30 p.m. | B．6:00 a.m. | C．5:45 p.m. | D．6:20 p.m. |
Where should passengers buy their tickets?
| A．From the bus driver. |
| B．On the bus after getting on it. |
| C．From the conductor. |
| D．At the station before boarding. |
People believe that climbing can do good to health. Where can you learn the skill of climbing then? If you think that you have to go to the mountains to learn how to climb, you’re wrong. Many Americans are learning to climb in city gyms (体育馆). Here, people are learning on special climbing walls. The climbing wall goes straight up and has small holding places for hands and feet.
How do people climb the wall? To climb, you need special shoes and a harness (保护带) around your chest to hold you. There are ropes (绳索) tied to your harness. The ropes hold you in place so that you don’t fall. A beginner’s wall is usually about 15 feet high, and you climb straight up. There are small pieces of metal that stick out for you to stand on and hold on to. Sometimes it’s easy to see the next piece of metal. Sometimes, it’s not. The most difficult part is to control your fear. It’s normal for humans to be afraid of falling, so it’s difficult not to feel fear. But when you move away from the wall, the harness and the ropes hold you, and you begin to feel safe. You move slowly until you reach the top.
Climbing attracts people because it’s good exercise for almost everyone. You use your whole body, especially your arms and legs. This sport gives your body a complete workout. When you climb, both your mind and your body can become stronger. What can we infer from the passage?
| A．People are fairly interested in climbing nowadays. |
| B．It’s impossible to build up one’s body by climbing. |
| C．People can only learn the skill of climbing outdoors. |
| D．It’s always easy to see holding places in climbing. |
The most difficult thing to do in wall climbing is _________.
| A．to tie ropes to your harness | B．to control your fear |
| C．to move away from the wall | D．to climb straight up |
The word “workout” underlined in the last paragraph most probably means .
| A．settlement | B．exercise |
| C．excitement | D．tiredness |
Why does the author write this passage?
| A．To tell people where to find gyms. |
| B．To prove the basic need for climbing. |
| C．To encourage people to climb mountains. |
| D．To introduce the sport of wall climbing. |
Everybody hates rats. But in the earthquake capitals of the world—Japan, Los Angeles, Turkey—rats will soon be man’s new best friends.
What happens after an earthquake? We sent in rescue dogs. Why? Because they can smell people. Dogs save lives. They help rescuers to find living people. But dogs are big and they can’t get into small spaces. So now a new research project is using a smaller animal to save lives: the rat.
How does it work? First, the rat is trained to smell people. When this happens, the rat’s brain gives a signal (信号). This is sent to a small radio on its back, and then the rescuers follow the radio signals. When the rat’s brain activity jumps, the rescuers know that someone is alive. The rat has smelled that person.
Although there are already robots which can do this job, rats are better. Christian Linster at Cornell University, New York, says, “‘Robots ’noses don’t work well when there are other smells around. Rats are good at that.” Rats can also see in the dark. They are cheaper and quicker to train than dogs, and unlike robots, they don’t need electricity(电)!
The “rat project” is not finished, but Julie Ryan of International Rescue Corps in Scotland says, “It would be fantastic. A rat could get into spaces we couldn’t get to and a rat would get out of it if it wasn’t safe.” Perhaps for the first time in history, people will be happy to see a rat in a building (but only after an earthquake, of course).In the world earthquake capitals, rats will become man’s best friends because they can .
| A．take the place of man’s rescue jobs |
| B．find the position of people alive who are trapped in buildings |
| C．serve as food for people alive who are trapped in buildings. |
| D．get into small spaces |
In doing rescue jobs, .
| A．rats smell better than dogs |
| B．dogs don’t need to be trained to smell people |
| C．robots’ sense of smell can be affected by other smells around |
| D．rats can see in the dark and smaller than robots |
Rats have all the following advantages EXCEPT that .
| A．they are more fantastic than other animals |
| B．they are less expensive to train than dogs |
| C．they don’t need electricity |
| D．they are small and can get into small places |
After reading the passage we can know .
| A．at present rats have taken the place of dogs in searching for people |
| B．the “rat project” has been completed |
| C．people are now happy to see a rat in a building |
| D．now people still use dogs and robots in performing rescues |
If you are planning on traveling, there are few simple rules about how to make life easier both before and after your journey.
First of all, always check and double-check departure (出发) time. It is surprising how few people really do this carefully. Once I arrived at he airport a few minutes after ten. My secretary had got the ticket for me and I thought she had said that the plane left at 10:50. When I arrived at the airport, the person at the departure desk told me that my flight was closed. Therefore, I had to wait three hours for the next one and missed an important meeting.
The second rule is to remember that even in this age of credit cards (信用卡), it is still important to have some local money in cash (现金). Once I arrived at a place at midnight and the bank at the airport was closed. The only way to get to my hotel was by taxi but because I had no dollars, I offered to pay in pounds instead. “Listen! I only take real money!” the driver said angrily. You can imagine how terrible I felt at that moment.
The third and the last rule is to find out as much as you can about the weather at your destination(目的地) before you leave. I feel sorry for some of my workmates who travel in heavy suits and raincoats in May, when it is still fairly cool in London or Manchester, to places like Athens, Rome of Madrid, where it is already beginning to get quite warm during the day.Where is the writer most probably from?
| A．Britain | B．The USA | C．Italy | D．Greece |
When the writer found he had no dollars to pay the taxi driver, he .
| A．asked the driver to give him a free ride |
| B．offered to pay in pounds |
| C．gave the driver some fake(假) money |
| D．tried to pay by credit card |
Generally, in May the weather in London is .
| A．warm and dry | B．cold and dry |
| C．hot and wet | D．cool and rainy |
The writer mainly tells us .
| A．how to make life easier |
| B．how to be well prepared for a trip |
| C．how to enjoy ourselves on trip |
| D．how to schedule our trip |
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