English Test 5 : Air Pollution

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English Test 5 : Air Pollution English Test 5 : Air Pollution Clean air provides us with a healthy supply of oxygen. When wastes are poured (1) ______ the atmosphere, the airbecomes contaminated and unpleasant to breathe. This is air pollution. Water vapour and carbon dioxide occur in the air naturally. Examples of air pollution are dust storms, volcanic eruptions,forest fires (2) ________ by lightning, pollen, and marsh gases. A large (3) ______ of air pollution in cities comes from sources other than industry, mainly automobiles, home heating,and garbage disposal Vehicles also account (4) ______ air pollution in the cities. Automobiles exhaust and some industr ial processes containcarbon monocide, an odourless gas which cannot be seen or tasted. Nitric oxide is another tail – pipe emission that ishighly poisonous and may sometimes (5) _____ into the even more dangerous nitrogen dioxide. Lead andsmoke are emitted in engine exhausts as tiny particles. S mog - originally a combination of smoke and fog – also (6) ____ in the atmosphere when nitrogen oxides and organicgases combine under the influence of sunlight. This is photochemical smog. It may not sound familiar, but it is commonlyfound in most major cities (7)___ there are large concentrations of industry and automobiles. Industrial smoke stacks throw out sulphur and nitrogen oxide. Burning coal and oil releases other gases harmful (8) _____ humans. The most serious of these gases is sulphur dioxide.In the atmosphere it can (9) _______ with water vapour and oxygen to turn into a sulphuric – acid mist. Hydrogen fluoride is produced in the manufacture of phosphate fertilizers and some metals. Burning garbage and paper wastes pollute the air with unpleasant odours. Dangerous chemicals can b e released (10)_______ burning plastics or hairspray containers.New wordsContaminate Pollen Disposal Nitrogen dioxide ( NO2)Vapour Exaust photochemical Oxygen ( O )Emission ( Emit ) Account for Carbon monoxide ( CO) Sulphur ( S )Release Stag Hydrogen fluoride ( HF ) Sulphur dioxide (SO2 )Marsh Organic Nitric oxide ( NO) Sulphuric acid ( H2SO4)Comprehension1.Paragraph 1 gives you a way of understanding air pollution. What is it ? _______________________2. What two gases occur naturally ? _______________________3. What are some sources of air pollution in cities ? _______________________4. How do vehicles pollute the air in cities ? _______________________5. Where can smog be found ? _______________________6. What does sulphur dioxide combine with water vapour and oxygen turn into ? _______________________Grammar1. Word Blending ( Smog = Smoke + Fog )Medicare = Medical + Care _________ = Formal + Tranlation_______ = Breakfast + Lunch _________ = European + Television_______ = Helicopter + Airport _________ = International + Police_______ = Motor + Pedal _________ = Motor + Hotel_______ = News + Broadcast _________ = Television + Broadcast2. Adjectives + Prepositions a. Your father was very kind ______________us. k. He was successful ________ his job. b. Hurry or you will be late _____________ school. l. The child is very quick ______ arithmatic c. Were they present ___________ the meeting ? m. The day seems perfect ______ a picnic. d. She was confused ____________ the dates. n. He was sad _______ his friend’s failure. e. His book is different _________ mine . o. The country is rich ______ oil. f. Your plan is similar __________ his . p. The museum is now open ____ all visitors g. Miss Lan is very popular ________ her colleagues. q. Are you aware ________ the time ? h. The boy was afraid ____________ the horse . r. Are you acquainted _______ this man? i. She is accustomed __________ rising early. s. He has been absent ______ class lately. j. The house was crowded ________ students. t. Attending all the lectures is important ____ us3. Hoµn tÊt c©u ®· cho b»ng mét tÝnh tõ thÝch hîp a. They don’t appear __ ...