“__5__. There won't be a sudden outbreak of symptoms, but normally three to five days after the smoggy weather occurs, there is a peak in the number of people seeing doctors，” Deng Ying, a doctor at the Second Affiliated Hospital of Harbin Medical University was quoted as saying.

　　A．The impact of air pollution on people will be gradual

　　B．Smog has been regarded as the biggest killer nowadays in China

　　C．Just days previously, the World Health Organization classified air pollution as a carcinogen (致癌物)

　　D．The faster smog comes, the faster it goes away

　　E．References to “feed people with smog” have become popular on Weibo

　　F．40 times the safety level reminded by the World Health Organization

　　G．And meanwhile, the risk of bladder cancer is also closely connected with it

　　答案：1～5　FCGEA

　　Module 4　Sandstorms in Asia

　　[写得准] [用得活] [积得多]

　　1.mass adj.　大量的；大规模的

　　2.process n.

　　进程；过程

　　3.forecast vt.

　　预报；预告

　　4.atmosphere n.

　　大气；大气层；气氛

　　5.environment n.

　　环境

　　6.recycle v.

　　重新利用；再循环

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