1. The air is so dirty. I sneeze so much. (conditional setence type 2)
________________________________________________________________________________
2. Their children have birth defects. The parents were exposed to radiation. (because)
________________________________________________________________________________
3. The air pollution causes breathing problems. (leads) ____________________________________________________________________
4. Acid rain is dangerous. Trees’ leaves are damaged. (because of)
____________________________________________________________________ 5. Noise pollution happens. There is a change in animals’ living pattern. (causes)
____________________________________________________________________
6. Fossil fuels such as coal or oil are burned. Acid gases are produced. (so)
____________________________________________________________________
7. Radioactive pollution is very dangerous. It can cause abnormal growth. (since)
____________________________________________________________________
8. The area is empty. The nuclear accident happened. (made)
____________________________________________________________________

1. The air is so dirty. I sneeze so much. (conditional setence type 2)
________________________________________________________________________________
2. Their children have birth defects. The parents were exposed to radiation. (because)
________________________________________________________________________________
3. The air pollution causes breathing problems. (leads) ____________________________________________________________________
4. Acid rain is dangerous. Trees’ leaves are damaged. (because of)
____________________________________________________________________ 5. Noise pollution happens. There is a change in animals’ living pattern. (causes)
____________________________________________________________________
6. Fossil fuels such as coal or oil are burned. Acid gases are produced. (so)
____________________________________________________________________
7. Radioactive pollution is very dangerous. It can cause abnormal growth. (since)
____________________________________________________________________
8. The area is empty. The nuclear accident happened. (made)
____________________________________________________________________

Combine the following sentences using the words in brackets.

1. Noise pollution happens. There is a change in animals' living pattern. (causes)

→ ....................................................................

2. Radioactive pollution is very dangerous. It can cause abnormal growth. (since)

→ ......................................................................

3. The area is uninhabitable. The Chernobyl nuclear accident happened. (made)

→ ........................................................................

4. Fossil fuels such as coal or oil are burned. Acidgases are produced. (so)

→ ........................................................................

5. Acid rain is dangerous. Trees' leaves are damaged. (because of)

→ ........................................................................

6. Leaves are damaged. The tree cannot get enough food energy to stay healthy. (because)

→ ............................................................................

Rewrite the sentences, using the words in brackets.

1. The noise from the music club is loud, so the residents of the street cannot sleep. (because of)

__________________________________________________

2. Vy had a stomachache because she ate a big dinner. (since)

__________________________________________________

3. Because it rained heavily, the road in front of my house was flooded. (due to)

__________________________________________________

4. His room is untidy, so his mother is unhappy. (because)

__________________________________________________

5. Global warming happens when there is too much carbon dioxide (CO2) in the atmosphere. (causes)

__________________________________________________

6. Noise pollution happens. There is a change in animals living pattern. (causes)

__________________________________________________

7. Radioactive pollution is very dangerous. It can cause abnormal growth. (since)

__________________________________________________

8. The area is uninhabirable. The Chernobyl nuclear accident happened. (made)

__________________________________________________

9. Fossil fuels such as coal or oil are burned. Acid gases are produced. (so)

__________________________________________________

10. Acid rain is dangerous. Tree'leaves are damaged. (because of)

__________________________________________________

11. Leaves are damaged. The tree cannot get enough food energy to stay healthy. (because)

__________________________________________________

12. There are asthma, allergies and other respiratory illness when air pollution happens. (lead to)

__________________________________________________

13. Aquatic life suffers of dies because there is thermal pollution. (because of)

__________________________________________________

14. Water in the Cau River becomes brown and has terrible smell because the waste water is released from the paper mill in Thai Nguyen City. (so)

__________________________________________________

15. People use too much herbicide to treat weeds, so water in rivers, canals, lakes are axtremely polluted and has bad effects on people's health. (because)

__________________________________________________

16. Many fish in the river die due to the increased temperature of water. (because)

__________________________________________________

17. Because plastic bags take so long to decompose, nearly all of them still exist in the environment today. (so)

__________________________________________________

18. We are unable to see the stars in the sky. Light pollution occurs. (make)

__________________________________________________

19. Glass panels, windows, lawns and roofs make light pollution worse. They reflect both artificial and sun light. (because)

__________________________________________________

20. All sounds are not noise. Noise is any sound that is unwanted and goes beyond its certain limit, for example, above 80 decibels. (because)

__________________________________________________

21. More and more noise is created by modern civilization. It has now become a major environmental pollutant, especially in urban areas. (so)

__________________________________________________

22. Contamination in the air happens. There is acid rain which damages soil, vegetation and aquatic life of the region. (cause)

__________________________________________________

Write the second sentence so that it means the same as the first :

1. The acid rain happened last month . Many plants and animals died. (since)

2. Noise pollution happens. There is a change in animals' living pattern . (leads to)

3. There was a loud noise next to my door last night, so I couldn't sleep . (due to)

4. Leaves are damaged, so the tree can't get enough energy to stay healthy. (because)

5. There is a lot of water pollution because the factory doesn't treat its waste well. (If)

6. People travel to work by bus, so there are fewer car fumes. (If)

Đoạn văn này hoàn chỉnh chưa

Nowadays, pollution is a popular term with everyone in the world and air pollution is one type of pollution. The definition of air pollution is one such form that refers to the contamination of the air, irrespective of indoors or outside. A physical, biological or chemical alteration to the air in the atmosphere can be termed as pollution. There are some main reasons which cause air contamination such as burning of fossil fuels, agricultural activities, exhaust from factories and industries, mining operations, and indoor air pollution. Air pollution always has bad effects on our life. Harmful gases, dust, and smoke enter into the atmosphere and make it difficult for plants, animals and humans to survive. We also can see some examples of the result of air contamination which occurs around us as global warming, acid rain, and depletion of ozone layer. The effects of air pollution are alarming, so governments over the world should have suitable policies of protecting the environment, especially air quality to create a clean world for our generation in the future.

Đoạn văn này hoàn chỉnh chưa

Nowadays, pollution is a popular term with everyone in the world and air pollution is one type of pollution. The definition of air pollution is one such form that refers to the contamination of the air, irrespective of indoors or outside. A physical, biological or chemical alteration to the air in the atmosphere can be termed as pollution. There are some main reasons which cause air contamination such as burning of fossil fuels, agricultural activities, exhaust from factories and industries, mining operations, and indoor air pollution. Air pollution always has bad effects on our life. Harmful gases, dust, and smoke enter into the atmosphere and make it difficult for plants, animals and humans to survive. We also can see some examples of the result of air contamination which occurs around us as global warming, acid rain, and depletion of ozone layer. The effects of air pollution are alarming, so governments over the world should have suitable policies of protecting the environment, especially air quality to create a clean world for our generation in the future.

IV. Read and choose the answer.

                                        FOSSIL FUELS

The sun’s energy is stored in coal, natural gas, water and wind. Coal, oil and natural gas are known as fossil fuels. Fossil fuels were formed over millions of years when the remains and fossils of prehistoric plants and animals sank to the bottom of swamps and oceans.

We use the energy in these fossils fuels to make electricity. We use electricity in many different  ways. We light and heat our homes, schools and businesses using electricity, and to run computers, refrigerators, washing machines and air conditioners. Our cars and planes run on gasoline, which comes from oil. As of the year 2013, most of the energy we use comes from fossil fuels.
1. Where is the sun’s energy stored?

__________________________________________________________________________

2. What is the example of fossil fuels?

__________________________________________________________________________

3. Where do we get most of electricity from?

__________________________________________________________________________

4. What do we use electricity for? 

__________________________________________________________________________

5. Where does gasoline some from?

__________________________________________________________________________