Unit 7: Pollution

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Water pollution is the contamination of water bodies, usually as a result of human activities. Water bodies include for example lakes, rivers, oceans, aquifers and groundwater. Point source pollutants are industrial waste, sewage, pesticides, herbicides. There are a lot of effects that water pollution may cause. Human and animals may die if they drink contaminated water. Plants will be killed by pollutants as well. So what we can do to solve the problem? Goverment should give heavy fines to companies that are found doing this, the most important measure is to raise the sense of responsibility of the community. In addition, we must save water; treatment of waste before being discharged into the environment....

VI. Fill in each numbered blank with a correct word to complete the following passage. 
 Air pollution is a growing problem throughout the world. Indoor air pollution is (1) 
…………….. of the leading causes of lung cancer. Families in developing countries use open 
stoves for cooking and heating (2) …………….. homes. These homes do not have proper 
ventilation. The smoke, which is (3) …………….. of chemicals and carcinogens, gets trapped 
inside where families eat and sleep. Outdoor pollution also (4) …………….. diseases and 
illness, especially in industrial cities such as Beijing, China, where cancer is (5) …………….. 
leading cause of death. China relies heavily on coal, which is considered the dirtiest (6) 
…………….. of energy. According to the European Union, only one percent of urban dwellers 
in China breathe clean (7) …………….. on an average day. Neighbouring countries including 
Japan and Korea receive much of China’s pollution in the (8) …………….. of acid rain. This 
pollution results mainly from the coal powered factories, which produce inexpensive goods (9) 
…………….. North American and European consumers. Outdoor air pollution is also a concern 
in many wealthy countries. Those who live and (10) …………….. in urban centres such as Los 
Angeles or Toronto experience many warm days beneath a layer of smog. 

II. Use the given words to write the complete sentences.

1. If / I / come home / early / I / prepare / dinner.

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2. If / we / live / Rome / Francesco / visit / us.

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3. If / Tim and Tom / be / old / they / play / our hockey team.

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4. If / he / be / my friend / I / invite him / my birthday party.

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5. If / Susan / study / hard / she / be better / school.

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6. If / they / have / enough money / they / buy / new car.

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7. If / you / do / paper round / you / earn / little / extra money.

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8. If / Michael / get / more pocket money / he / ask / Doris / out / for dinner.

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9. If / we / win / lottery / we / fly / San Francisco.

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10. If / I / meet / Brad Pitt / I / ask / his autograph.