An underwater robot that can hear the calls of whales, and to help ships to avoid them, has just been successfully tested in the Bahamas.
The scheme relies on a fish-shaped glider that moves freely through the ocean. It can dive down as far as 200 meters below the surface and direct itself by shifting a weight from fore to aft. A microphone attached to the bottom of the glider can pick up calls from all whales, including the high frequency call of the beaked whale, which until now has been difficult to detect. The glider returns periodically to the surface to radio its data back to base, or if that's too far away, it can call a satellite phone and send its information anywhere in the world.
"We are entering a new era of underwater sensing' says Jim Theriault of Defence Research and Development Canada, in Dartmouth, Nova Scotia who ran the trial. "We can put a glider in the Bahamas and monitor it in Nova Scotia. ”
The hope is that naval or other ocean-going operations that use sonar (声呐）will be able to more easily track where whales are, and so avoid using their noisy equipment when they are close by. There is circumstantial evidence that sonar can upset whales and a number of strandings (搁浅）have been seen shortly after naval sonar operations. “We're trying to lower the potential risk by knowing the animals are there，” says Theriault. The shape of the underwater robot is like __________
| A．a man |
| B．a fish |
| C．a snake |
| D．a turtle |
The underwater robot is built to __________.
| A．help whales move to the Bahamas |
| B．help whales give birth to their young |
| C．help ships avoid whales |
| D．help humans kill more whales |
To radio its data back to base, the robot has to __________
| A．dive down as far as 200 meters below the surface |
| B．stay deep in the water |
| C．call a satellite phone |
| D．come to the surface periodically |
The best title for this passage is “ __________ ”.
| A．Whales are in danger |
| B．Whales are difficult to find |
| C．Robot built to kill whales |
| D．Robot built to spy on whales |
Which of the following statements is FALSE?
| A．Whales can be disturbed by naval sonar operations. |
| B．Whales can be disturbed by noisy equipment. |
| C．Whales can be disturbed by noisy ocean-going operations. |
| D．Whales' strandings have nothing to do with naval sonar operations. |
Most of us are used to seasons. Each year, spring follows winter, which follows autumn, which follows summer, which follows spring. And winter is colder than summer. But the earth goes through temperature cycles over much longer periods than those that we experience.
Between 65,000 and 35,000 years ago, the planet was much colder than it is now. During that time the temperature also changed a lot, with periods of warming and cooling. Ice melted during the warm periods, which made sea levels rise. Water froze again during the cold periods.
A new study from Switzerland sheds light on where ice sheets melted during the ice age.
It now seems that the ice melted at both ends of the earth, rather than just in either northern or southern areas. This surprised the researchers from the University of Bern.
Scientists have long assumed（认为） that most of the ice that melted was in the Northern hemisphere(半球) during the 30,000-year long ice age. That belief was held because the North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean. It is easier for ice sheets to grow on land. If surrounded by sea the ice can easily just slip into the ocean instead of building up.
The researchers used a computer model to look at ways the ice could melt and how it might affect sea levels. They compared these results to evidence of how temperatures and currents actually changed during that time.
The model showed that if it was only in the Northern hemisphere that ice melted, there would have been a bigger impact(影响) on ocean currents(洋流) and sea temperatures than what actually happened. Studies suggest that melting just in the Southern hemisphere would have been impossible, too.
The only reasonable conclusion, the scientists could make, was that ice melted equally in the North and the South.
It is still a mystery as to what caused the temperature changes that caused the ice to melt.The underlined phrase “sheds light on” (in paragraph 3) can be replaced by.
| A．throws doubts on |
| B．beats down on |
| C．makes it clear |
| D．makes light of |
We can infer from the passage .
| A．the ice can easily just slip into the ocean |
| B．melting just in the Northern hemisphere would have been impossible |
| C．volcanoes caused the ice to melt |
| D．researchers often use the computer models help their research work. |
The scientists are not sure .
| A．what caused the temperature changes |
| B．where ice sheets melted during the ice age |
| C．how long the ice age lasted |
| D．what the earth is made up of |
Which of the following is the best title for the passage?
| A．A computer model |
| B．Studies show ice melted equally in the North and the South during the ice age |
| C．Most of the ice melted in the Northern hemisphere during the 30,000-year long ice age. |
| D．A survey result |
In 1978, I was 18 and was working as a nurse in a small town about 270 km away from Sydney, Australia. I was looking forward to having five days off from duty. Unfortunately, the only one train a day back to my home in Sydney had already left. So I thought I’d hitch a ride (搭便车).
I waited by the side of the highway for three hours but no one stopped for me. Finally, a man walked over and introduced himself as Gordon. He said that although he couldn’t give me a lift, I should come back to his house for lunch. He noticed me standing for hours in the November heat and thought I must be hungry. I was doubtful as a young girl but he assured （使…放心）me I was safe, and he also offered to help me find a lift home afterwards. When we arrived at his house, he made us sandwiches. After lunch, he helped me find a lift home.
Twenty-five years later, in 2003, while I was driving to a nearby town one day, I saw an elderly man standing in the glaring heat, trying to hitch a ride. I thought it was another chance to repay someone for the favour I’d been given decades earlier. I pulled over and picked him up. I made him comfortable on the back seat and offered him some water.
After a few moments of small talk, the man said to me, “You haven’t changed a bit, even your red hair is still the same.”
I couldn’t remember where I’d met him. He then told me he was the man who had given me lunch and helped me find a lift all those years ago. It was Gordon.The author had to hitch a ride one day in 1978 because .
| A．her work delayed her trip to Sydney |
| B．she was going home for her holidays |
| C．the town was far away from Sydney |
| D．she missed the only train back home |
Which of the following did Gordon do according to Paragraph 2?
| A．He helped the girl find a ride. |
| B．He gave the girl a ride back home. |
| C．He bought sandwiches for the girl. |
| D．He watched the girl for three hours. |
The reason why the author offered a lift to the elderly man was that .
| A．she realized he was Gordon |
| B．she had known him for decades |
| C．she was going to the nearby town |
| D．she wanted to repay the favour she once got |
What does the author want to tell the readers through the story?
| A．Giving sometimes produces nice results. |
| B．Those who give rides will be rapid. |
| C．Good manners bring about happiness. |
| D．People should offer free rides to others. |
“Teenager” is the new term being used in the UK to describe kids at either 8—12 or 10—13 years old.
More and more companies are beginning to create products and services for teenagers. The Disney Company sells music and film to teenagers and their parents. You can get everything from lunchboxes and mobile phone covers, to monthly fan magazines and clothing. It’s all about sales, which suggests that teenagers must have more money, freedom and influence upon their parents than they’ve ever had before.
Most kids in the UK today get more pocket money than kids did ten years ago. Parents have more money to give their kids than before, since parents are having fewer children. In addition, the divorce（离婚） rate in the UK is continually rising and parents spend less time with their children than they used to, so many parents try to please their children by buying them presents. It’s a bad habit for both parents and kids to get into, but parents are under pressure from commercial marketing and the pleas（请求） of their children.
UK kids today are very media and computer-literate. A lot of kids have a TV, if not a computer, in their bedrooms. They have easy access to much more information about life and the world. They may have experienced a lot in life as well, since 24% of UK kids live in single-parent families, so people now say that “kids are getting older younger”. With such maturity (成熟)at such a young age, it’s no wonder teenagers are able to influence their parents and have more freedom than previous generations.
UK teenagers never used to be worried about spending money on clothes. That’s changed. Now, they are much more fashion(时尚) conscious and concerned about their image(形象). Many of them outgrow the bright colors and fashions of kids years ago and go for something darker and more rebellious(叛逆).
Surely none of the above is a good thing. The UK government is certainly concerned, and for that reason has strict laws preventing companies from marketing their products and services at children.Why are more products and services created for teenagers?
| A．Because companies are creating better products and services. |
| B．Because children education is becoming more important. |
| C．Because it is better to study music from an early age. |
| D．.Because children have more money to buy them. |
Kids today can get more money partly because ________.
| A．parents always accompany(陪) their kids |
| B．more parents divorce nowadays |
| C．parents have more expectation(期望) of kids |
| D．kids know how to make money |
Teenagers have more freedom due to the following facts EXCEPT that ________.
| A．they become mature at a younger age |
| B．they know more information than kids before |
| C．they have a lot of experience in life |
| D．parents can no longer influence them |
Which is true about kids in the past?
| A．They used to have more money to spend. |
| B．They couldn’t influence their parents. |
| C．They preferred to wear brighter clothes. |
| D．They looked older than their age. |
What is the purpose of the passage?
| A．To introduce a new phenomenon(现象). |
| B．To teach a new word “teenager”. |
| C．To warn parents to care about their kids. |
| D．To blame（责怪）today’s young people |
Though Chinese is older than English, English is spoken by many people around the world every day. English speakers are always making new words and we should be able to know where most words come from.
Sometimes, however, no one may really knows where a word comes from. Did you ever think about why hamburgers are called hamburgers, especially when they are not made with ham? About a hundred years ago, some men went to America from Europe. They came from a big city in Germany called Hamburg.
They did not speak good English, but they ate good food. When some American saw them eating round pieces of beef, they asked the Germans what it was. The Germans did not understand the question and answered, “We came from Hamburg.” One of these Americans owned a restaurant, and had an idea. He cooked some round pieces of the beef like what the man from Hamburg ate and sold in many countries around the world.
Whether this story is true or not, it certainly is interesting. Knowing why a word has a certain meaning is interesting, too. The reason may be found in any large English dictionary.Hamburg is _______ .
| A．a kind of food | B．a city in Germany |
| C．the name of a village | D．a round piece of beef. |
According to the story, _______.
| A．few Americans like hamburgers |
| B．hamburgers are made with ham |
| C．hamburgers are made with beef |
| D．hamburgers were sold all over the world about a century ago |
According to the writer, which of the following can be found in any large English dictionary?
| A．Where all the new words come from. |
| B．Where those Germans came from. |
| C．The reason why English is spoken around the world. |
| D．The reason why a word has a certain meaning. |
According to the story, the word “hamburgers” comes from _______.
| A．China because it has a long history |
| B．England because Germans don’t speak good English |
| C．English speakers because they always make new words. |
| D．The round pieces of beef those people from Hamburg brought to America. |
From the passage, we can infer that hamburgers was first sold to the world by _______.
| A．Germans | B．Americans |
| C．Chinese | D．we don’t know |
Where can you find a nice place to relax on holiday for both you and your children? Well, I suggest you try the beautiful and green Isle of Wight (IOW). The Isle of Wight is one of the main tourist attractions. Here is some information on a few of the attractions on the IOW.
Dinosaur Isle
It is located in Sandown, a seaside town on the southeast coast. It's a large, lovely museum, both fun and educational. Here you can see a large fossil collection of all kinds of dinosaurs, as well as a gift shop. You can walk into the past and then the future, learning about the history and the development of the civilization of dinosaurs(恐龙）that lived 120 million years ago.
Robin Hill Country Park
The park is in the beautiful countryside, and is suitable for children's parties and games. It has five new gardens, and offers great opportunities to see and take pictures of the rare red squirrels.
The West of the Wight
Here we have the Marine Aquarium, the Archaeology Exhibition and the Model Railway. They offer another opportunity to combine entertainment(娱乐) with learning. This is a great place to see ancient boats crossing the narrow strait between the island and the mainland.
The Wight Bus Museum
This museum is run completely by unpaid volunteers. It has a bus collection stored in what was once a warehouse (仓库) . Most of the buses in the museum date back to around the 1910's.
With all of these choices, what are you waiting for? IOW Tourism welcomes you!Where can you visit the dinosaur museum?
| A．In a seaside town. |
| B．In the west of the isle. |
| C．In the beautiful countryside. |
| D．On the northeast coast. |
Where can you learn something as well as have a good time?
| A．Dinosaur Isle and Robin Hill Country Park. |
| B．The Wight Bus Museum and Robin Hill Country Park. |
| C．Dinosaur Isle and the West of the Wight. |
| D．The Wight Bus Museum and the West of the Wight. |
It can be learned from the passage that ____.
| A．on Dinosaur Isle we can learn about all kinds of animals |
| B．those running the Wight Bus Museum work for free |
| C．there are five new gardens on Dinosaur Isle |
| D．the Wight Bus Museum can be visited free of charge |
The purpose of this passage is to ____.
| A．advise readers how to relax on holidays |
| B．show the development of tourism on the IOW |
| C．attract readers to come to the IOW |
| D．tell readers what is worth visiting |
You can read this article in a ______.
| A．film advertisement | B．science journal |
| C．book review | D．travel magazine |