Giáo viên: Mai Thị Lan Anh Và em học sinh trường THPT Chuyên LƯƠNG THẾ VINH dustmasks * VOCABULARY Clean air provides us with a healthy supply of oxygen •+ to provide sb (with sth) [prE'vaId] (v): to supply sb (with sth) Ex: book/ provide/ you/ information/ need - This book will provide you with (all) the information you need " provision [prE'vIZn] (n) When wastes are poured into the atmosphere, the air becomes contaminated and unpleasant to breathe + to contaminate [kEn'tXmIneIt] (v): make dirty to to contaminate sth (with sth) Ex: - Chúng ta không nên làm ô nhiễm -We shouldn’t contaminate our dòn with wastes and g ta river g sông chúnchemicals.các chất thải hóa chất -The drinking water has become contaminated with lead " contamination [kEntXm1#ne1Fn] (n) Water vapour and carbon dioxide occur in the air naturally + vapour (BrE)['veIpE(r)] a mass of very small (n): = vapor (AmE) Ex: water vapour drops of liquid in the air, for example steam + carbon dioxide ['kA:bEn daI'KksaId] CO2 + to (n): occur [E'k3:(r)] (v): to exist or be found somewhere Ex: Sugar/ occur/ naturally/ fruit - Sugar occurs naturally in fruit Examples of air pollution are dust storms , volcanic eruptions, forest fires caused by lightning, pollen, and marsh gases A dust storm + volcano [vKl'keInEV ] (n) (plural volcanoes / volcanos) …volcanic eruptions, forest fires caused by lightning, … + volcano [vKl'keInEV ] (n) Ex: …volcanic eruptions , forest fires caused by lightning, … - An active volcano may erupt at any time - A dormant volcano ['dC:mEnt] - An extinct volcano [Ik'stINkt] " volcanic [vKl'kXnIk] (adj) Ex: A volcanic eruption Hawaii is a collection of undersea volcanoes A volcanic eruption that have risen above sea level over millions of years to form a chain of islands An industrial smokestack Exhausted fume Large fires cause significant air pollution C Look at the following activities and decide what we should (Ì) and what we shouldn’t (×) to reduce air pollution: - use the car all the time × - use bicycles for short distances Ì -use public transport as much as possible Ì - use coal in heating and cooking × - burn garbage × - put garbage in dustbins so that they can be collected Ì Ì - keep our house and the surroundings clean Ì D FUN CORNER “The quickest is the winner” P S U P P L Y O V A P O U R E V O L C A N L L C A N L V O U S T R U D O X I D T P T I A S P Y G E O I C O N II R O S E N N ……………… means “to …… , food and that one of the causes air A volcanic …… without get rid of sb/sth Man cannot The adjectiveexististhe noun “volcano” of … 3.9.Water ……… may ………………… The time 4.2.An active offrompollution in the air ………… An O is synonymoccurs is …… storms example …… for “provide” anyis air pollution the or cannotof erupt at is naturally symbol keep” water we don’t want P O L L T U I O N CROSSWORD PUZZLE The synonym for “provide” is …………… Water ……… occurs in the air naturally An active ……… may erupt at any time The adjective from the noun “volcano” is ……… An example of air pollution is ……… storms A volcanic …… is one of the causes of air pollution Man cannot exist without …… , food and water ………… means “to get rid of sb/sth that we don’t want or cannot keep” O is the symbol of …………………… ... can pollute the air T / F Industry is the only source of air pollution in cities T / F B QUESTIONS What / clean air / provide / us? - What does clean air provide us with? - (Clean air provides us... gases 4 automobiles/ garbage disposal/ only/ sources / air pollution / cities? - Are automobiles and garbage disposal the only sources of air pollution in cities? - No, they aren’t Some other sources... Exhausted fume Large fires cause significant air pollution C Look at the following activities and decide what we should (Ì) and what we shouldn’t (×) to reduce air pollution: - use the car all the time