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A.It is decided
B.It is reported
C.It is demanded that
D.It is happened that
答案
更多“___ the clean water in this area is being used up.”相关的问题
第1题
How is clean water brought to our homes？
A．Through pipes from the sewage works.
B．Through underground main pipes.
C．Through pipes from storage tanks.
D．Through small pipes under the road.
第2题
A.clean ballast
B.crude oil
C.fresh water
D.fuel oil
第3题
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！
第4题
The water is brought from the waterworks to each street by a large underground pipe—a water main. The water in this pipe is then forced by pressure into the smaller pipes which carry it to storage tanks at the tops of the buildings. Other pipes bring the water down from the storage tank to the kitchens and bathrooms in the building.
When the water has been used, it is taken away from the building by drainpipe. These take the waste water to another large pipe under the road—the main sewer. The waste water then flows along the sewer to the sewage works where it is cleaned. This "clean" water is then poured into the sea or into a river, or in some countries, sent back to the waterworks to be used again.
Electricity is also brought to the house by a main, in this case a cable. This cable may be underground or, in country districts, it may hang above ground on pylons. The cable is connected to a meter in the building. This meter measures the amount of electricity that is used in the building. Near the meter there is a master switch which can cut off the supply of electricity. There are also fuse boxes between the master switch and the wires which take the electricity to each of the switches in the building. All these wires, fuses and switches are the "wiring circuit".
It can be inferred from this passage that______.
A．water and electricity are the only main services in our homes
B．the pipes bringing water to our homes are unimportant
C．water is less significant than electricity in our homes
D．we are unaware of how water or electricity is brought to our homes
第5题
Crocodiles(鳄鱼)lay their eggs and leave them under leaves or sand. Baby crocodiles have special sharp teeth with which to break their way out of the shells. Crocodiles only live where it is hot. They are found in India, Australia, Africa and America. They spend most of their time lying around in the mud or the rivers. The crocodiles long powerful tail is used when the animal is swimming. It is also an excellent weapon, because it can be swung with great speed and force. One blow will knock down a man or even a big animal at once. The crocodile is very well protected against its enemies by the hard bony plates which cover most of its body, but because of the way its neck is formed, it cannot turn its head from side to side and so it can only see in front of itself. The crocodile has its teeth cleaned by the crocodile bird. For its food this bird takes the bits left in the crocodiles mouth. This helps the crocodile, which cannot clean its own teeth, for it cannot move its tongue up and down. With its rows of terrible pointed teeth it seizes its food, which may be a fish, an animal, or even a careless human being, and then holds it below the water until it is drown to death. The long-nosed crocodile is shy and timid and because of this, the people of West Africa where it lives, sometimes catch it for food. Many, many centuries ago there were crocodiles in England. We know this because we have found their bones buried far down in the earth on which London is built. But the Britain of today is too cold for them to live in. Crocodiles may grow to over thirty feet in length. When they lie floating in the water, they look like floating tree-trunks and it is often impossible to tell that they are there.
The female crocodile______.
A．buries her eggs
B．sits on her eggs
C．carries her eggs
D．eats her eggs
第6题
1.A.that
B.a
C.the
D.some
2.A.being
B.that
C.since
D.be
3.A.foot
B.foots
C.feet
D.feets
4.A.long
B.wide
C.width
D.wider
5.A.houses
B.buildings
C.construction
D.huts
6.A.one
B.some
C.a
D.that
7.A.oblong
B.enormous
C.airy
D.awful
8.A.come
B.get
C.go
D.act
9.A.yet
B.thus
C.but
D.and
10.A.house
B.building
C.place
D.locality
11.A.so
B.such
C.that
D.some
12.A.return
B.refund
C.rebuke
D.retreat
13.A.adapted
B.accustomed
C.accompanied
D.appropriate
14.A.turn to
B.turn up
C.turn out
D.turn in
15.A.dotted
B.covered
C.made
D.covering
16.A.weeds
B.clothes
C.grass
D.woods
17.A.be
B.sit
C.talk
D.run
18.A.stands
B.finds
C.lies
D.goes
19.A.over
B.on
C.from
D.to
20.A.include
B.contain
C.consist
D.content
第7题
City life is not always a bad thing, but many experts worry about this process of urbanization (城市化 ). A new report says that process is having a huge effect on human health and the quality of the environment. Of the three billion people who live in cities now, the report says, about one billion live in unplanned settlements. These are areas of poverty, slums that generally lack basic services like clean water, or even permanent housing. More than 60 million people are added to cities and surrounding areas each year, mostly in slums in developing countries. The international community has been too slow to recognize the growth of urban poverty. Policy makers need to increase investments in education, health care and other areas.
The report talks about some successful efforts by local governments and community groups. For example, it says in Columbia, engineers have created a bus system that has helped reduce air pollution and improve quality of life.
The link between urban poverty and the environment is serious, but governments also need to consider why people are moving out of rural areas. Climate changes, droughts, floods—there are many reasons forcing people to leave their farm land.
The two issues of poverty reduction and the environment have existed side by side, but rarely have they connected—until now. Governments are starting to understand that environmental collapse is not a natural cost of economic development. Instead, it is hurting the possibility for growth.
The main idea of the passage is about ______.
A．urbanization and its effects
B．a huge effect of human
C．economic development
D．the environment
第9题
A.Let's clean the windows
B.Let's clean the blackboard
C.Let's clean the chairs
第10题
A.Let me clean the blackboard
B.Let's clean the classroom
C.Let me clean the classroom
