III. Rewrite the sentences in direct or indirect speech.

1. "Production of these chemicals causes serious environmental pollution", said the scientists.

à The scientists said that______________________________________________

2. "New scientific discoveries are being made all the time."

à We believed that __________________________________________________

3. Miss Anne said that she was doing scientific experiments at that moment.

à Miss Anne:"_____________________________________________________ "

4. Minh asked his friend who he had been out with the weekend before.

à Minh: ___________________________________________________________

5. They asked us how we had got on with David two days before.

à They:" _________________________________________________________?”

6. "The students will watch a documentary on the future of nuclear power tomorrow", said the teacher.

à The teacher said that _______________________________________________

Pollution is any contamination of the environment which causes harm to the environment or the inhabitants of the 

Soil pollution can be caused by pesticides, leakage from chemical tanks, oil spills, and other chemicals which get into the soil by dumping or accidental contamination. Soil pollution can also cause water pollution when underground water becomes contaminated by coming into contact with the polluted soil. Water pollution can be caused by waste products, sewage, oil spills, and litter in streams, rivers, lakes, and oceans. Some scientists believe that water pollution is the largest cause of death and disease in the world, causing about 14,000 deaths in the world each day.

It is not possible for anyone to predict the exact timing and effects of global pollution and global climate change brought about by pollution. There is general agreement by scientists that the global climate will continue to change, the intensity of weather effects will continue to increase, and some species of animals will become extinct

4. What kind of pollution may oil spills cause

3. What is cause of soil pollution

Read the text, then decide True or False:

The environment is everything around us, both natural and made by man. A major problem in the world today is the destruction of the natural envirinment. This is a complicated problem. We burn fuel, and this causes air pollution. We throw away plastc bags, containing toys and other subjects. These stay in the environment; they are not like paper or wood that slowly disappear. We have made thousands of new chemicals. Factories that make or use chemicals always have chemical wastes. These are often poisonous and thay also stay in the environment. Since 1945 several countries have been testing nuclear bombs in the air and underground. The explosions in the air cause nuclear fallout. The fallout causes cancer and kills animals and people. Nuclear power plants that make electricity also produce dangerous wastes and have accidents that can be very dissstrous.

a. Many big cities are facing serious air polltuion……………..

b. This is a simple problem ………………

c. Nuclear bombs were first tested in 1945………………….

d. A nuclear bomb causes a terrible destruction………………………….

Pollution is any contamination of the environment which causes harm to the environment or the inhabitants of the environment. There are three main kinds of pollution. Air pollution can be caused by liquids, or gases that make the air harmful to breathe. There are two main types of air pollution: primary and secondary. Primary pollutants enter the air directly, like smoke from factories and car exhaust. Secondary pollutants are chemicals that mix together to pollute the air, like mixtures of emissions from vehicles and factory smoke that change to form more dangerous pollutants in the air and sunlight.

Soil pollution can be caused by pesticides, leakage from chemical tanks, oil spills, and other chemicals which get into the soil by dumping or accidental contamination. Soil pollution can also cause water pollution when underground water becomes contaminated by coming into contact with the polluted soil. Water pollution can be caused by waste products, sewage, oil spills, and litter in streams, rivers, lakes, and oceans. Some scientists believe that water pollution is the largest cause of death and disease in the world, causing about 14,000 deaths in the world each day.

It is not possible for anyone to predict the exact timing and effects of global pollution and global climate change brought about by pollution. There is general agreement by scientists that the global climate will continue to change, the intensity of weather effects will continue to increase, and some species of animals will become extinct

1.How many kinds of pollution are there in the text?

2.What kind of pollution is considered as the cause of the most death and disease?

E. WRITING 1. Reorder the words to make full sentences

. 1. of bodies/ directly/ Air pollution/ contaminate/ can/ of water and soil/ the surf

2. trees/ so much/ don't/ We/ if/ we/ waste/ will/ thousands of/ paper/ save.

3. would/bad/ air pollution/ What/ got/ you/ really/ do/ if?

4. as/ the death/ Polluted water/ animals/ of/ fish and crabs/ such/ aquatic/ causes

5. went/ more/ less/ to/ If/ we/ recycled/ rubbish/ landfill sites.

6. the overuse/ has/ Agriculture/ on/ an/ land pollution/ impact/ of/ chemicals/ due t

7. much/ cities/ lights/ use/ Too/ of/ cause/ in/ may/ light pollution/ electric

8. our time/ is/ one/ most/ of/ problems/ serious/ Water pollution/ the/ of/ environmenia

II. Complete the second sentence so that it has the same meaning to the first one.

1. I think you should use energy efficient light bulbs. If I

2. He produced a great idea for our environmental project.

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