Flying over a desert in an airplane, two scientists looked down with trained eyes at trees and bushes. After an hour's flight one of the scientists wrote in his notebook, "Look here for probable metal." Walking across hilly ground, four scientists reported, "This ground should be searched for metals." From an airplane over a hilly wasteland a scientist sent back by radio one word "Uranium".
None of the scientists had X-ray eyes: they had no magic powers for looking down below the earth's surface. They were merely putting to use one of the newest methods of locating minerals in the ground -- using trees and plants as signs that certain minerals may lie under the ground on which the trees and plants are growing.
This newest method of searching for minerals is based on the fact that minerals deep in the earth may affect the kind of bushes and trees that grow on the surface.
At Watson Bar Creek, a mineral search group gathered bags of tree seeds. Boxes were filled with small branches from the trees. Roots were dug and put into boxes. Each bag and box was carefully marked. In a scientific laboratory the parts of the forest trees were burned to ashes andtested. Each small part was examined to learn whether there were minerals in it.
Study of the roots, branches and seeds showed no silver. But there were small amount of gold in the roots and a little less gold in the branches and seeds. The seeds growing nearest to the tree trunk had more gold than those growing on the ends of the branches.
If the trees indicated that there was no gold in the ground, the scientists wouldn't spare money to pay for digging into the ground.Scientists were flying over a desert or a hilly wasteland or a mountain region to ________.
| A．train their eyes | B．study the trees | C．look for gold | D．search for minerals |
The study of trees, branches and roots indicated that __________.
| A．there were larger amounts of gold in the branches far from the tree trunk than in the seeds |
| B．there were smaller amounts of gold in the tree roots deep in the ground than in the branches |
| C．there were larger amounts of gold in the seeds growing closer to the tree trunk than in the seeds farther from it |
| D．there were larger amounts of gold in the branches than in the leaves on the ends of the branches |
Which of the following is NOT mentioned as part of a tree that can help the searchers?
| A．Leaves. | B．Roots. | C．Branches. | D．Seeds. |
Which of the following might be the best title for this passage?
| A．Scientists searching for treasure with special equipment. |
| B．New methods of doing geological study. |
| C．Gold could be found in trees and plants. |
| D．A new method of searching for minerals. |
The Local Ness Monster is said to be a creature or a group of creatures living in the Loch Ness , a lake near the city of Inverness in northern Scotland.
The first modern sighting occurred on May 2,1993. The newspaper Inverness Courier reported a story of Mr. and Mrs John Mackay, who saw a very large animal rolling and plunging (跳入) into the water. The report attracted thousands of readers, of whom some were brave enough to see and even try to capture the animal.
A photograph taken by surgeon R.K Wilson on April 19,1934 seemed to show a large creature with a long neck gliding through the water. However ,decades later the photo was said to have been faked by Marmaduke Wetherell after he was hired by the Daily Mail.
In 1962, the Loch Ness Investigation Bureau was formed to act as a research organization .Whatever the result of their research is, the Loch Ness has become a real place which attracts millions of tourists every year.Where is the lake Loch Ness?
When was the first modern sighting?
The underlined word “capture” can be replaced by________?
Canada is a very large country. It is bigger than China. China is the third largest country in the world. Canada is the second largest . It has an area of nearly 10 million. Canada has a very long coastline. To the west is the Pacific Ocean. To the east is the Atlantic Ocean. The Arctic Ocean is in the north. There are many islands off the Pacific coast and off the Arctic coast. The biggest one in the west is Vancouver Island. In the east there is New Foundland, and in the Arctic Ocean the biggest islands are Baffin Island and Victoria Island.(Greenland is not part of Canada. It is a part of Denmark, a country in northern Europe.)
Canada has a long border with the USA in the south. In the northwest Canada borders on the American “State of Alaska”. Canada is a northern country. The Arctic Circle (Latitude 16°N) passes through the northern part . in the south, half of the border with the USA follows line of latitude 49°NWhich of the following statements is true?
| A．USA is the second largest country in the world. |
| B．Canada has nearly 10 million sq. km. So it is the second largest country on the world. |
| C．China is as large as Canada and the secong largest country in the world. |
| D．Russia is the second largest country in the world. |
What ocean is in the north of Canada?
| A．The Pacific Ocean | B．The Atlantic Ocean |
| C．The Indian Ocean | D．The Arctic Ocean |
There are many islands in Canada, and Vancouver Island is_______.
| A．in the west | B．in the east | C．in the north | D．in the south |
Alaska is one of the states of America. It is on the___ of Cananda.
| A．northeast | B．southeast | C．northwest | D．southwest |
Most British telephone cards are just plain green, but card collecting is becoming a popular hobby in Britain and collectors even have their own magazine, International Telephone Cards. One reason for their interest is that cards from around the world come in a wide variety of different and often very attractive designs. There are 100, 000 different cards in Japan alone, and there you can put your own design onto a blank card simply by using a photograph or a business card.
The first telephone cards, produced in 1976, were Italian. Five years later the first British card appeared, and now you can buy cards in more than a hundred countries. People usually start collecting cards because they are attractive, small and light , and they do not need much space. It is also a cheap hobby for beginners, although for some people it becomes a serious business. In Paris, for example, there is a market where you can buy only telephone cards, and some French cards cost up to 4, 000 pounds. The first Japanese card has a value of about 28, 000 pounds. Most people only see cards with prices like these in their collectors magazine.The text is mainly about ________ .
| A．the history of phone cards | B．phone card collecting as a hobby |
| C．reason for phone card collecting | D．the great variety of phone cards |
When did people in Britain begin to use phone cards?
| A．In 1971. | B．In 1975. | C．In 1976. | D．In 1981. |
The main reason for most people to collect phone cards is that ________ .
| A．they find the cards beautiful and easy to keep |
| B．they like to have something from different countries |
| C．they want to make money with cards |
| D．they think the cards are convenient to use |
The writer mentions a market in Paris in order to show that ________
| A．card collecting is popular among young people |
| B．French and Japanese cards are the most valuable |
| C．people can make money out of card collecting |
| D．card collectors magazines are very useful |
Mr. Brown first went to look at the underground-fire when he was seven. “Through the hole in the earth you could see the orange fire, but you had to look fast because it was so hot,” said Mr. Brown. In 1898,he saw the fire once more.
Now, we can only see the smoke. The fire Mr. Brown saw is not the underground-fire. In fact ,there are 260 coal fires in the world. They are harmful and dangerous. Then how to put them out?
Scientists have tried to set fire to underground coal to speed up the fires. In this way, the burning of underground coal would be soon finished.Mr Brown said that we had to take a fast look at the fire because_________.
| A．it was in the hole | B．it was very hot |
| C．it was orange | D．it was harmful |
How many coal fires are there in the world?
| A．There’s only one | B．It’s hard to say |
| C．There are 260 | D．The article doesn’t tell us |
What’s one of the best ways to put out the underground fire?
| A．To cover the holes with stones | B．To speed the fire |
| C．To see the fire burning | D．To do some experiments |
What is the best title for the article?
| A．Watching the Underground-fire |
| B．A Way to Put out the Underground Coat Fires |
| C．The Burning Earth |
| D．Coal and Coal Fires |
阅读下面短文，根据所读内容在文后小题的空格里填上适当的单词或短语。注意：每空不超过3个单词。
Each year there is an increasing number of cars as millions of new cars are produced in America. Americans will not live without cars! However, some have realized the serious problem of air pollution by cars. It is necessary to find ways to solve the problem of air pollution.
One way to clean the air is to build a new kind of clean car. That’s what several of the large car factories are trying to do. But to build a clean car is easier said than done. Progress in this field has been slow.
Another way is to take the place of the car engine by something else. Engineers are now working on it. Many makers believe that it will take years to develop a practical model for us.
To prevent the world being polluted by cars, Americans have to make some changes in the way of their life. They have to cut down on the number of their cars and are encouraged to travel and go to work by bike. But this change does not come easily. Many workers may find themselves without jobs if a car factory closes down. And the problem of their pollution would become less important than that of unemployment.
Americans may live a happy but sad life for a long time because of the car problem.
Cars and Pollution in American
| Problem |
Methods |
58._____________ |
Conclution |
56______________ |
Building a new kind of 57._______. |
Progress in this field is slow. |
Americans may live a 60._______ life. |
| It takes years to develop a 59._______ |
|||
| Cutting down on the number of cars |
Many workers may lose their jobs |
||
| Traveling and going to work by bike. |