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There are many causes that lead to water pollution in Viet Nam. One of the main causes is wasting water coming from many factories and then being directly pulled out into the rivers, lakes or seas without any treatment because this is the most convenient way of dumping waste water. Industrial waste consists of some kinds of chemical subtance which are harmful for our life. Another cause of water pollution is the lack of awareness of citizens. Every day, people generate a lot of garbage and they throw them directly into rivers, ponds and so on.
1. Waste water from many factories which is dumped into water bodies directly causes water pollution. T
2. Dumping waste directly into water is the most convenient way of disposing waste water. T
3. Sulphur is believed the main reason for cancer. F
4. Cancer villages occurred in 2004. F
5. Due to lack of awareness, people poisoned water with dead poultry when there was a bird flu outbreak in 2004. T
VIII. Read the passage and decide whether the statements are True (T) or False (F).
1. Waste water from many factories which is dumped into water bodies directly causes water pollution. T
2. Dumping waste directly into water is the most convenient way of disposing waste water. T
3. Sulphur is believed the main reason for cancer. F
4. Cancer villages occurred in 2004. F
5. Due to lack of awareness, people poisoned water with dead poultry when there was a bird flu outbreak in 2004 T
1.Điền vào mỗi chỗ trống với MỘT từ thích hợp.
The major cause of water pollution in Vietnam is the weakness in industrial wastewater management. Many factories (65)____use_______ fresh water to carry away waste (66)______from______ their plants into canals, rivers, and lakes. Most of them do not have (67)______any_____ wastewater treatment system. Industrial waste water is directly discharged into canals, lakes, ponds, and rivers, causing serious (68)___pollution_____ of surface water. For example, (69)____in_____ 2008. Vedan factory, a sodium glutamate plant, released their untreated industrial wastewater into the Thi Vai River and (70)____caused_______ tons of fish and ducks in the river to die.
Another cause of water pollution in Vietnam is the lack of awareness among citizens. Every day people generate a lot of (71)_____trash_____, and they throw it directly into canals, rivers, and ponds. They (72)____collect_____ water from these sources to do their laundry, wash dishes, and bathe, and then they throw the dirty water that contain detergent and shampoo directly into them.
Water Pollution is the contamination of water bodies. It occurs as a result of introduction of pollutants in water. Water is life. Still, we contribute in polluting the water bodies in several ways.
Water Pollution is mainly caused as a result of improper discharge of household and industrial chemicals wastes into the water bodies.
These dangerous chemicals (in the form of solid, liquid or gases) mixes with water and make it unsafe for living bodies. Water pollutants cause harm to human-beings, animals, trees and other constituents of environment.
Water pollution is a major global problem which requires ongoing evaluation and
revision of water resource policy at all levels. It has been suggested that water
pollution is the leading worldwide cause of deaths and diseases, and that it accounts
for the deaths of more than 14,000 people daily. An estimated 580 people in India
die of water pollution related illness every day. About 90 percent of the water in the
cities of China is polluted. As of 2007, half a billion Chinese had no access to safe
drinking water. In addition to the acute problems of water pollution in developing
countries, developed countries also continue to struggle with pollution problems. For
example, in the most recent national report on water quality in the United States, 44
percent of assessed stream miles, 64 percent of assessed lake acres, and 30
percent of assessed bays and estuarine square miles were classified as polluted.
The head of China’s national development agency said in 2007 that one quarter the
length of China’s seven main rivers were so poisoned the water harmed the skin.
Water is typically referred to as polluted when it is impaired by anthropogenic
contaminants and either does not support a human use, such as drinking water, or
undergoes a marked shift in its ability to support its constituent biotic communities,
such as fish. Natural phenomena such as volcanoes, algae blooms, storms, and
earthquakes also cause major changes in water quality and the ecological status of
water.
1. What is the leading worldwide cause of deaths and diseases?
Water pollution is the leading worldwide cause of deaths and diseases.
2. How many people die every day by water pollution?
More than 14,000 people die every day by water pollution.
3. How many percent of the water in the cities of China is polluted?
25% of the water in the cities of China is polluted.
5. What phenomena cause major changes in water quality and the ecological status
of water?
Volcanoes, algae blooms, storms, and earthquakes.
I/read the passage and answer the following question:
Water pollution is the contamination of bodies of water such as lakes, rivers, oceans, and groundwater (the water beneath the Earth’s surface). It is one of the most serious types of pollution.
Water pollution can have many different causes. Factories dump industrial waste into lakes and rivers. Sewage from households is another cause. Farms using pesticides to kill insects and herbicides to kill weeds can also lead to water pollution. These factors cause ‘point source’ pollution while pollutants from storm water and the atmosphere result in ‘non-point source’ pollution.
Water pollution can have dramatic effects.
1.what are point source pollutants?
=> Factories dump industrial waste into lakes and rivers, sewage from households, farms using pesticides to kill insects and herbicides to kill weeds are point source pollutants.
2.what are the non-point source pollution
=> Pollutants from storm water and the atmosphere result are non-point source pollution.
II/choose the best answer A,B,C or D to complete the sentences:
1.I intended ......to New York next month
A.flew B. to fly C. fly D.flying
2.Earth.........by the gravity of the sun and orbits around it
A. is held B.hold C.to hold D.holding
III/ Circle the word with a different stress pattern from the other:
1. A.classic B.nature C.degree D.debris
2. A.dramatic B.tornado C.historic D.injury
3. A.communicative B.competitive C.opportunity D.unfortunate
4. A.authority B.impolite C.unhealthy D.repetitive
II. Fill in the blank of the following passage with ONE suitable word. Write your answer on your answer sheet.
There is much more water than land (1)____on_______ the surface of the earth. The sea and oceans (2)_____are________ nearly four-fifths of the whole world, and only one-fifth of (3)___surface _______ land. If you traveled over the earth (4)____in_____different directions, you would have to spend much more of your time (5)______travelling__________ on water than on roads or railways. We sometimes forget that (6)______each_________ every mile of land there is four miles of water.
There is much water on the surface of our earth that we (7)______have________ to use two words to describe. We use the word seas to (8)____describle __________ those parts of water surface which (9)_______are _______ only a few hundreds of miles wide, the word oceans to describe the huge areas of water which are thousands of miles wide (10)_____and_____ very deep.
III. Read the following passage carefully and choose the best answer to each question. Identify your answer by writing the corresponding letter A, B, C or D on your answer sheet.
One of the most urgent environmental problems in the world today is the shortage of clean water. Having clean drinking water is basic human right. But acid rain, industrial pollution and garbage have made many sources of water undrinkable. Lakes, reservoirs and even entire seas have become vast pools of poison. Lake Baikal in Russia is one of the largest lakes in the world. It contains a rich variety of animals and plants, including 1,300 rare species that do not exist anywhere else in the world. But they are being destroyed by the massive volumes of industrial effluent which pours into the lake everyday. Even where law existed, the government did not have the power to enforce them. Most industries simply ignore the regulations. The Mediterranean Sea occupies 1% of the world’s water surface. But it is the dumping ground for 50% of all marine pollution. Almost 16 countries regularly throw industrial wastes a few miles off shore.
Water is free to everyone. A few years ago people thought that the supply of clean water in the world was limitless. Today, many water supplies have been ruined by pollution and sewage. Clean water is now scarce, and we are at last beginning to respect this precious source. We should do something now.
1. According to the writer, one environmental problem in the world today is ________ .
A. acid rain B. industrial pollution. C. safe water shortage. D. population explosion .
2. Many sources of water are not drinkable because of _______ .
A. acid rain. B. industrial pollution. C. garbage D. all A, B, C, are correct
3. What is serious problem of Lake Baikal in Russia?
A. It contains a rich variety of animals and plants.
B. It is polluted by massive volumes of industrial wastes discharged into it .
C. It has 1,300 rare species that do not exist anywhere else in the world .
D. The government did not have the power to enforce laws and regulations.
4. How many countries throw industrial waste into the Mediterranean Sea regularly?
A. nearly 16 B. exactly 16. C. exactly 15 D. less than 15.
5. What is the message to the reader?
A. We should take action to protect our water resources.
B. We should take all water resources into account.
C. We should limit the use of water resources.
D. We should encourage people to use safe water.
Write conditional type 1 or type 2 for these situations
1. People eat dirty food. They can be cancer.
⇒ If people eat dirty food, they can be cancer
2. A factory directly discharges a large volume of wastewater into the Thi Vai River. The river is polluted.
⇒ If a factory didn't directly discharge a large volume of wastewater into Thi Vai river, it wouldn't be polluted.
3. Farmers use polluted water to water their plants. People eat these plants, they become sick with diseases such as diarrhea, bacterial infections even cancer.
⇒ If farmers use polluted water to water their plants, people who eat them will become sick with diseases such as diarrhea, bacterial infections even cancer.
4. Thermal pollution takes place. The water temperature in streams, rivers, lakes and oceans will increase or decrease suddenly.
=> If thermal pollution takes place, the water will temperature in streams, rivers, lakes, and oceans will increase or decrease suddenly.
5. People live in a radioactive pollution area. They can be skin cancer.
=> If people live in a radioactive pollution area, they can be skin cancer.
1b 2b 3c 4d 5c