| protect， pollute， find， choice， bad， discuss， harm， recent， she， solution |
Have you ever heard of a documentary titled Under the Dome（穹顶之下）？Without any advertisement， it became a hit on the Internet
(1) ．
In the film， Chai Jing， a former news host，
(2) where smog comes from and how to beat it． She visited many polluted places and talked to officials and scientists． She said that burning too much coal and oil is the main cause of PM 2.5and smog in China． To make things
(3) ， according to Chai， the coal and oil we are now burning are of poor quality． They don"t meet the standards for environmental
(4) ， too． They have produced more
(5) gas and particles （颗粒）in the air．
Chai also suggested that besides the government， every one of us could actually do something to help beat the air
(6) ． For example， instead of riding in cars， we could
(7) subways or buses． Also， if you find things that could harm the environment， call 12369-a hot line． Chai had tried it
(8) ． Zhang Zihua， a 15-year-old schoolboy in Shanxi，
(9) these suggestions very encouraging． "I used to think it"s not my thing to help
(10) the problem，" he said， "But next time when I see someone harming the environment， I know I can call 12369．"