Across the river().
A.lies a new built bridge
B.lies a newly built bridge
C.a new built bridge lies
D.a newly built bridge lies
A.lies a new built bridge
B.lies a newly built bridge
C.a new built bridge lies
D.a newly built bridge lies
Rivers are one of our most important natural resources (资源). Many of the world&39;s great cities are located(坐落) on rivers, and almost every country has at least one river running through it that plays an important role in the lives of its people.
Since the beginning of the history, people have used rivers for transportation(运输). The longest one in the United States is the Mississippi. The lifeline of Egypt is the Nile. To the people of India, the Gangs is great, but it is also important for transportation; Ships can travel along it for a thousand miles. Other great rivers are the Congo in Africa and the Mekong in southeast Asia. The greatest of all for navigation (航海), however, is the Amazon in Brazil. It is so wide and so deep that large ships can go about two thousand miles upon it.
Besides transportation, rivers give food, water to drink, water for crops(庄稼), and chances for fun and entertainment for the people who live along their banks. In order to increase(增加) the supply of crops, engineers sometimes build a dam (大坝) across a river and let a lake from behind the dam. Then people can use the water not only to irrigate (灌溉) their fields but also to make electricity for their homes and industries.
However, large cities and industries that are located upon rivers often make problems. As the cities grow in size and industries increase in number, the water in the rivers becomes polluted with chemicals(化学物质) and other materials. People are learning the importance, however, of doing more to keep their rivers clean if they want to enjoy the benefits (利益) of this natural resource.
The greatest river for navigation is ___________.
A.the Amazon
B.the Nile
C.the Mekong
D.the Mississippi
From a dam, people can use the water for ___________.A.keeping the rivers clean
B.only making electricity
C.washing clothes
D.irrigation and making electricity
The water in the river is polluted because of _____________.A.people's drinking water too much
B.people's swimming in the river too much
C.chemicals and other materials
D.people's building a dam across a river
The best title of the passage is ___________.A.Rivers in Cities
B.The importance of Rivers
C.Transportation
D.Natural Resources
请帮忙给出每个问题的正确答案和分析,谢谢!
Shorty, a man of forty, had gone into town. He had said he would be back before two. He had told Walt to watch the boats and the shop. There were no people around. They had all gone out on the lake to fish.
So Walt went to work on one of the boats. From there he could hear the telephone if it rang. And he could watch the door.
It was a little after two when the stranger came. Walt saw him stop by the shop. The stranger looked in for a minute. Then he went down to the boats. He was a big man in a coat.
Walt called to him, "Do you want something, sir?"
The stranger looked at Walt and said, "No, thanks." Then the stranger moved slowly away. As he went on, he looked at the boats one by one.
Walt sat there with his eyes on the back of the stranger's coat. He thought, "I can smell something as I smell that storm. I hope Shorty comes back soon."
The story happened ______.
A.on the lake at night
B.by the lake in the afternoon
C.along the river in spring
D.near the river in summer
In ancient times, man settled near rivers or on river banks and built up large empires.
Water is the Nature's most precious gift to man. Man needs water to irrigate his crops, to cook and to wash. In nations all over the world rivers mean life and wealth. They feed and clothe the nations around them.
Water is also a source of energy and power. Man constructs huge dams across the river to control the water for irrigation and get the energy needed to drive generators. The electrical power is then directed to homes, cities, factories and television stations.
Man uses water each day. His main source of water comes from reservoirs, which in turn get their water from the rivers.
Rivers also bring down soil and minerals from the mountains and deposit them on the plains building up rich river deltas for raising plants and crops. Fresh water life in rivers or in lakes fed by them provide man with food.
In a small way rivers help to keep man in good health and provide for his amusements. Various forms of water sports keep man strong and healthy.
Rivers have run on this earth long before man. Man's future ability to live is uncertain, but rivers will flow on forever.
Rivers have been important to man______.
A.since the last century
B.for a very long time
C.since a few hundred years ago
D.since a few years ago
In ancient times, man settled near rivers or on river banks and built up large empires.
Water is Nature's most precious gift to man. Man needs water to irrigate his crops, to cook and to wash. In nations all over the world rivers mean life and wealth. They feed and clothe the nations around them.
Water is also a source of energy and power. Man constructs huge dams across the river to control the water for irrigation and get the energy needed to drive generators. The electrical power is then directed to homes, cities, factories and television stations.
Man uses water each day. His main source of water comes from reservoirs, which in turn get their water from the rivers.
Rivers also bring down soil and minerals from the mountains and deposit them on the plains building up rich river deltas for raising plants and crops. Fresh water life in rivers or in lakes fed by them provide man with food.
In a small way rivers help to keep man in good health and provide for his amusements. Various forms of water sports keep man strong and healthy.
Rivers have run on this earth long before man. Man's future ability to live is uncertain, but rivers will flow on forever.
Rivers have been important to man ______.
A.since the last century
B.for a very long time
C.since a few hundred years ago
D.since a few years ago
The thing that is surprising about Tower Bridge is that it is open in the middle. It does this to let the big ships through to the Pool of London. If you are lucky enough to see the bridge with its two opening arms high in the air, you will never forget it.
On its north side stands the Tower of London itself. Although they look the same age, the Tower is almost a thousand years old, and Tower Bridge is only about one hundred, it was built in the 1890s. By1850, everyone agreed that a bridge across the Thames near the Tower was most necessary. But the designers argued about the new bridge for another thirtyyears. This took so long because they had two big problems.
l. Tower Bridge is().
A. about one thousand years old
B. the oldest and the most famous bridge in London
C. the first one you can see when you go from the sea to London
2. The Tower of London is().
A. across from the Thames
B. on the north of Tower Bridge
C. in the middle of Tower Bridge
3. Which of the following is NOT true according to the passage()?
A. You can see the bridge with its two opening arms high in the air at anytime.
B. By 1850 everybody thought it most necessary to have a bridge built across the Thames near the Tower.
C. It took the designers thirty years to argue about the bridge before it was built.
4. Why is the bridge open in the middle()?
A. To make it special.
B. To attract (吸引) more people from the world to see it.
C. To let the big ship through to the Pool of London.
5. How long was the Tower Bridge built()?
A. A thousand years.
B. A hundred years.
C. Five thousand years.
He went over his instructions in his mind. The agent would appear at four o' clock. He would chat to Lane for a while, after which he would get up, leaving his newspaper behind. The plan would be fastened inside.
A distant clock began to strike the hour. As if from nowhere, a man appeared and sat down be side Lane, placing his newspaper on the seat between them. He was thin and middle-aged, and seemed in need of a good meat. He bored no resemblance to Lane' s idea of a successful spy. His conversation, confined to trivial observations about the weather, was painfully uninteresting.
A few minutes later he got up and continued on his way. Large picked up the paper which laid on the bench, as if he wanted to look at the news. He was excited to see the plans pinned to the center page. At that moment, however, there was a strong wind which lifted the newspaper into the air, like a kite, and blew it into the river.
Lane ______.
A.memorized his orders
B.recited his orders
C.tried to remember his orders
D.repeated his orders himself
A.It is lower than the Noah Rim.
B.It is hard to get,to even in good weather.
C.It is not open in winter months.
D.It attracts over。five million visitors each year.
In ancient times, man settled near rivers or on fiver banks and built up large empires.
Water is Nature’s most precious gift to man. Man needs water to irrigate his crops, to cook and to wash. In nations all over the world rivers mean life and wealth. They feed and clothe the nations around them.
Water is also a source of energy and power. Man constructs huge dams across the river to control the water for irrigation and get the energy needed to drive generators. The electrical power is then directed to homes, cities, factories and television stations.
Man uses water each day. His main source of water comes from reservoirs, which in turn get their water from the rivers.
Rivers also bring down soil and minerals from the mountains and deposit them on the plains building up rich fiver deltas for raising plants and crops. Fresh water life in rivers or in lakes fed by them provide man with food.
In a small way rivers help to keep man in good health and provide for his amusements. Various forms of water sports keep man strong and healthy.
Rivers have run on this earth long before man. Man’s future ability to live is uncertain, but rivers will flow on forever.
Rivers have been important to man ______.
A.since the last century
B.for a very long time
C.since a few hundred years ago
D.since a few years ago
Now our survival is threatened more by what we ourselves have worked, and by the stresses of living among these creations, than it is by wild animals to whom we relegate less and less living space with each passing year. In this world the need for good zoological gar-dens is urgent. The exponential growth of human population and the ever-increasing sprawl of cities does more than rob land from wildlife: it pushes the animals father away from city dwellers. People live in brick, concrete, and glass environments where they lose all touch with wilderness; children grow up who have never tried to catch a frog, never seen a hawk soar or a deer step daintily into a forest clearing—let alone watched a herd of elephants amble across the river or a pride of lions stalk prey.
People who have the time and money can take an occasional trip to the remaining wilderness and find, in places where wild animals still live, the renewal of spirit that comes from prolonged visits to wild country. For millions of others who are unable to leave the cities or can't afford to, good zoos laid out among plants and trees can bring what conservationist Lan Player calls "a taste of wilderness''. Perhaps more important in the long run, zoos can help give deprived people an awareness that we share the world with many other animals and should have a decent regard for their worth and right to live. If zoos did no more than accomplish these two ends, they would serve a noble purpose.
As it happens, however, today's zoos can do far more. They can become breeding centers for those wild species whose continued existence has become precarious. The team "captive breeding" has been used to describe this new role of zoos, and this book describes the effort the most important task that zoos have yet undertaken.
In the second sentence of the first paragraph, "hundreds of millions" refers to the great number of_____ .
A.mankind's various institutions
B.zoos across the world
C.live wild animals displayed
D.people who have visited zoos