Unit 2 School in Canada Lesson 10 Mr. Woods Science Class拓展知識(shí)霧霾天氣.ppt

1、Unit 2 School in Canada,Lesson 10 Mr. Woods Science Class,霧霾天氣,Hazy Weather,Tiananmen Square is in the fog.,A couple were taking pictures amid the haze.,The Beijing National Stadium, or the Birds Nest.,Popular Science大眾科學(xué),相對(duì)濕度 relative humidity,霧Fog,霾Haze,90%,80%,能見(jiàn)度 visibility,1km,1km-10km,Measurem

2、ent 計(jì)量方式,What is PM ?,Particular Matter,PM10可吸入顆粒物PM2.5可入肺顆粒物,Burning of fossil fuels in vehicles機(jī)動(dòng)車(chē)燃油,Power plants發(fā)電廠,Various industrial processes各類(lèi)工業(yè)生產(chǎn),1.Terrifying 恐怖 Hang in there！ 忍一下,2. Ridicule 調(diào)侃 Dust and smog is crazily thick! Be strong and do not breathe!,The longest distance in the world

3、is that I couldnt see Chairman Mao even though I am right in front of the Tiananmen! 最遠(yuǎn)的距離是站在天安門(mén)前卻看不到毛主席！,3. Fearless 無(wú)畏 Whatever doesnt kill you simply makes you stronger！殺不死你的會(huì)讓你更強(qiáng)大！梅花香自苦寒來(lái)！,The causes： 第一，污染物排放量大。 Large pollutant emission 第二，擴(kuò)散條件不利。 Disadvantageous condition for dispersal 第三，區(qū)域污染和本地污染貢獻(xiàn)疊加。 Multiply effect of regional pollution and local pollution,戴面罩 wear the mask 公共交通 public transportation 混合動(dòng)力車(chē) hybrid car 清潔能源 clean energy 社會(huì)監(jiān)督 public supervision,What can we do？,We are all in this together! We shall survive and t