Main Types of Water Pollution
When we think of Earth’s water resources, we think of huge oceans, lakes, and rivers. 1. The most obvious type of water pollution affects surface water. For example, a spill from an oil tanker creates an oil layer that can affect a vast area of an ocean.
2. A great deal of water is held in underground rock structures known as aquifers(含水层). Water stored underground in aquifers is known as groundwater. Aquifers feed our rivers and supply much of our drinking water. They can also become polluted, for example, when weedkillers used in people’s gardens drain into the ground.
Surface water and groundwater are the two types of water resources that pollution affects. 3. If pollution comes from a single location, such as a pipe attached to a factory, it is known as point source pollution. 4. A great deal of water pollution happens not from one single source but from many different sources. This is called nonpoint source pollution.
Sometimes pollution that enters the environment in one place has an effect hundreds or even thousands of miles away. 5. One example is the way radioactive waste travels through the oceans from unclear reprocessing plants in England and France to nearby countries such as Ireland and Norway.
A. Besides, we think of bottled water.
B. This is known as transboundary (跨界的) pollution.
C. Not all of Earth’s water sits on its surface, however.
D. Water resources like these are called surface water.
E. There are also two different ways in which pollution can occur.
F. Pouring oil from your car down a drain can lead to water pollution.
G. Another example of point source pollution is an oil spill from a tanker.
高三英语七选五中等难度题
Main Types of Water Pollution
When we think of Earth’s water resources, we think of huge oceans, lakes, and rivers. 1. The most obvious type of water pollution affects surface water. For example, a spill from an oil tanker creates an oil layer that can affect a vast area of an ocean.
2. A great deal of water is held in underground rock structures known as aquifers(含水层). Water stored underground in aquifers is known as groundwater. Aquifers feed our rivers and supply much of our drinking water. They can also become polluted, for example, when weedkillers used in people’s gardens drain into the ground.
Surface water and groundwater are the two types of water resources that pollution affects. 3. If pollution comes from a single location, such as a pipe attached to a factory, it is known as point source pollution. 4. A great deal of water pollution happens not from one single source but from many different sources. This is called nonpoint source pollution.
Sometimes pollution that enters the environment in one place has an effect hundreds or even thousands of miles away. 5. One example is the way radioactive waste travels through the oceans from unclear reprocessing plants in England and France to nearby countries such as Ireland and Norway.
A. Besides, we think of bottled water.
B. This is known as transboundary (跨界的) pollution.
C. Not all of Earth’s water sits on its surface, however.
D. Water resources like these are called surface water.
E. There are also two different ways in which pollution can occur.
F. Pouring oil from your car down a drain can lead to water pollution.
G. Another example of point source pollution is an oil spill from a tanker.
高三英语七选五中等难度题查看答案及解析
Main Types of Water Pollution
When we think of Earth’s water resources, we think of huge oceans, lakes, and rivers. 1. The most obvious type of water pollution affects surface water. For example, a spill from an oil tanker creates an oil layer that can affect a vast area of an ocean.
2. A great deal of water is held in underground rock structures known as aquifers(含水层). Water stored underground in aquifers is known as groundwater. Aquifers feed our rivers and supply much of our drinking water. They can also become polluted, for example, when weedkillers used in people’s gardens drain into the ground.
Surface water and groundwater are the two types of water resources that pollution affects. 3. If pollution comes from a single location, such as a pipe attached to a factory, it is known as point source pollution. 4. A great deal of water pollution happens not from one single source but from many different sources. This is called nonpoint source pollution.
Sometimes pollution that enters the environment in one place has an effect hundreds or even thousands of miles away. 5. One example is the way radioactive waste travels through the oceans from unclear reprocessing plants in England and France to nearby countries such as Ireland and Norway.
A. Besides, we think of bottled water.
B. This is known as transboundary (跨界的) pollution.
C. Not all of Earth’s water sits on its surface, however.
D. Water resources like these are called surface water.
E. There are also two different ways in which pollution can occur.
F. Pouring oil from your car down a drain can lead to water pollution.
G. Another example of point source pollution is an oil spill from a tanker.
高三英语七选五中等难度题查看答案及解析
As we all know, two thirds of the earth’s surface is water, ___ a lot of fish.
| A．provided | B．providing | C．which provides | D．it provides |
高三英语单项填空中等难度题查看答案及解析
_______ the fact that three quarters of the earth’s surface is covered with water, we can say that it is a ________ planet.
| A．Given; water-covering | B．having been given; water-covered |
| C．Considering; water-covered | D．To consider; water-to-cover |
高三英语单项填空中等难度题查看答案及解析
The water supply has been cut off temporarily because the workers________one of the main pipes. (2013·天津，13)
A．had repaired B．have repaired
C．repaired D．are repairing
高三英语单项填空中等难度题查看答案及解析
The water supply has been cut off temporarily because the workers ____ one of the main pipes.
A．had repaired B．have repaired C．repaired D．are repairing
高三英语单项填空中等难度题查看答案及解析
The water supply has been cut off temporarily because the workers ________ one of the main pipes.
A. had repaired B. have repaired
C．repaired D．are repairing
高三英语单项填空中等难度题查看答案及解析
B
The journey of water on the earth can be a mirror of our own paths through life. Like a river that flows within the boundaries of its banks, we are born with certain characteristics that _ __ our identity. We move through life, ____ many twists, turns, and barriers along the way just as a river does.
Water shows us how to move through the world with grace, bravery, determination, and ____. Water is brave and does not waste time sticking to its past, but flows onward without looking back. When there is a hole to be filled, water does not run away from it in fear of the dark; _ _, water modestly and bravely fills the empty space. Similarly, we can face the dark moments of our life rather than run away from them.
__, a river will empty into the sea. Water does not hold back from joining up with a larger body, nor does it fear a loss of _ __ or control. It gracefully and modestly falls into the vastness by contributing its energy without hesitation. Each time we move ____ our personal characters to become part of something bigger, we can try our best to _ __ the lead of the river.
1.A. preserve B. assume C. decide D. cast
2.A. competing with B. meeting with C. living with D. playing with
3.A. modesty B. happiness C. honesty D. reputation
4.A. therefore B. besides C. otherwise D. instead
5.A. Eventually B. Absolutely C. Regularly D. Actually
6.A. life B. confidence C. liberty D. root
7.A. on B. into C. across D. beyond
8.A. take B. follow C. lose D. hold
高三英语完形填空中等难度题查看答案及解析
Water, which covers about 74 percent of the earth’s surface, is man’s most precious resource. Without it we cannot live. Clean water keeps us alive; polluted water means disease and death. Keeping our water pure is by no means an easy task but it is something that must be done.
Hong Kong once prided herself on being the “Fragrant Harbour”. However, these days, it is not certain if Hong Kong’s harbour could still be called “fragrant”. For, like many other places, Hong Kong has not been spared water pollution. A visit to Tolo and Victoria Harbour, or any of the beaches in Hong Kong is enough to make one aware of the ugly truth that Hong Kong waters are indeed polluted.
The great threat to our water is bacteria pollution. Another great source of water pollution is poisonous chemicals. These substances, which are found in industrial waste and agricultural pesticides, make up unseen dangers that enter biological food chains.
Pollution control is a continuing problem for the government. It is believed that the most effective form of control is legislation（立法）. Most importantly, the present laws on pollution should be given more force. On the other hand, no amount of legislation can effectively control pollution unless those concerned are properly educated about the danger posed by pollution.
While a great majority of Hong Kong citizens and residents seem to be greatly concerned about ways to control water pollution, it is discouraging to note that there are, in our midst, some people who remain apathetic（无动于衷）about the problem. In a recent radio programme conducted on what people in the streets thought about the water pollution problem, one apparently unconcerned person said, “What do I care about water pollution? I don’t drink polluted water. As long as the water I drink is not polluted, I’m not bothered. Water pollution is too big a problem and let’s leave it to the government.”
If all residents in Hong Kong will take such an indifferent attitude, all the government’s attempts to control pollution, let alone the anti-pollution legislation, will prove useless. The best form of pollution control each citizen can employ is to be aware of his surroundings. We hope that someday, the problem of water pollution in Hong Kong will cease to alarm us.
1.By the underlined sentences, the writer wants to show that ______.
A. we should not use polluted water
B. it is our responsibility to keep our water clean and safe
C. clean water is vitally important to the survival of human beings
D. water is abundant but very expensive
2.What can you infer from the second paragraph?
A. Hong Kong indeed deserves the name.
B. Hong Kong never deserves such a name.
C. Hong Kong can’t avoid the damage of pollution.
D. Hong Kong has failed to live up to such reputation.
3.The writer quotes the words in the programme to show us that a block to the solution of the problem is _________.
A. people’s lack of education
B. people’s I-don’t-care attitude
C. people’s wait-and-see attitude
D. people’s over-dependence on the government
4.In the final analysis, the best approach to the problem of water pollution is ________.
A. legislation
B. rapid development of modern science
C. mass education
D.everybody taking care of his own surroundings
高三英语阅读理解困难题查看答案及解析
Rivers are the veins of the Earth, transporting the water and nutrients (营养物) needed to support the planet’s ecosystems, including human life. While many nutrients are essential to the survival of life, there is one element transported by water in rivers that holds the key to life and to the future of our planet — carbon.
Carbon is everywhere and understanding the way it moves and is either released or stored by the Earth system is a complex science in itself. Carbon starts its journey downstream when natural acid rain, which contains carbon dioxide from the atmosphere, melts minerals in rocks. This helps transform carbon dioxide to bicarbonate (碳酸氢盐) in the water that then flows in our rivers. This is a very long process, which is one of the main ways carbon dioxide is removed from the atmosphere. Carbon is transported by rivers to oceans and once that carbon reaches the ocean, it is stored naturally in deep sea sediments (沉淀物) for millions of years.
As carbon travels down a river, different processes may impact whether it continues to flow downstream or whether it is released into the atmosphere. For example, human engineering, like extensive dam construction, will result in dramatic changes to how water and sediments travel down the river. Some carbon that fails to reach the sea may return to the atmosphere in some way, which causes more warming.
Earth’s climate is closely related to the carbon cycle. We all know about the essential role of plants in consuming carbon dioxide, but do we know enough about rivers? Changing the chemistry and the course of rivers may have significant impacts on how they transport carbon. Remember: wherever we live, we all live downstream.
1.Where is the carbon in rivers originally from?
A.The atmosphere. B.The rocks.
C.The acid rain. D.The upstream areas.
2.Why is human engineering mentioned in Paragraph 3?
A.To show how important to life carbon is.
B.To explain how necessary it is to build dams.
C.To show how a natural process is interrupted.
D.To explain how humans fight global warming.
3.What does the author want to convey in the last paragraph?
A.We’d better move upstream to live.
B.We should protect plants along rivers.
C.We’d better seek more help from plants.
D.We should be cautious about river management.
4.What is the best title for the text?
A.What Humans Do with Rivers
B.How Rivers’ Transporting Carbon Counts
C.What the Carbon Cycle Means to Us
D.How Living Downstream Affects the Earth
高三英语中等难度题查看答案及解析