【第126期】美国人说环境污染

WATCH TODAY'S VIDEO ON MY 公众号 (铁蛋英语) or my 微博: 铁蛋儿TylerThe Top 10 Dirtiest Cities in AmericaCONTEXTToday's lesson is a culture lesson about pollution in America. Everyone thinks that China is so dirty and that America is so clean. Are they right?CULTURE- Did you know that big cites in America tend to be dirty?- How about the air quality in the dirties cities?- What's causing all this pollution?HOMEWORK- What can we all do differently today to start making our cities cleaner? I'm talking about the little things that can change right now.TOP 10 DIRTIEST CITIESTop 10 U.S. Cities Most Polluted by Short-Term Particle Pollution (24-hour PM2.5):·    Bakersfield, Calif.·    Visalia-Porterville-Hanford, Calif.·    Fresno-Madera, Calif.·    Modesto-Merced, Calif.·    Fairbanks, Alaska·    San Jose-San Francisco-Oakland, Calif.·    Salt Lake City-Provo-Orem, Utah·    Logan, Utah-Idaho·    Los Angeles-Long Beach, Calif.·    Reno-Carson City-Fernley, Nev.Top 10 U.S. Cities Most Polluted by Year-Round Particle Pollution (Annual PM2.5):·    Visalia-Porterville-Hanford, Calif.·    Bakersfield, Calif.·    Fresno-Madera, Calif.·    San Jose-San Francisco-Oakland, Calif.·    Los Angeles-Long Beach, Calif.·    Modesto-Merced, Calif.·    El Centro, Calif.·    Pittsburgh-New Castle-Weirton, Pa.-Ohio-W.Va.·    Cleveland-Akron-Canton, Ohio·    San Luis Obispo-Paso Robles-Arroyo Grande, Calif.Top 10 Most Ozone-Polluted Cities:·    Los Angeles-Long Beach, Calif.·    Bakersfield, Calif.·    Fresno-Madera, Calif.·    Visalia-Porterville-Hanford, Calif.·    Phoenix-Mesa-Scottsdale, Ariz.·    Modesto-Merced, Calif.·    San Diego-Carlsbad, Calif.·    Sacramento-Roseville, Calif.·    New York-Newark, N.Y.–N.J.-Conn.-Pa.·    Las Vegas-Henderson, Nev.-Ariz.