Smoggy weather has become common in China. But these days, air pollution levels in the north eastern city of Harbin surpassed the previous record levels.
The city was essentially shut down after PM2. 5, fine Particulate(微粒物) pollution that is considered hazardous(有害的) . reached levels of 1000 micrograms per cubic meter-40 times the safety level remended by the World Health Organization. Schools, motorways and an airport were closed on Tuesday as visibility in some areas of the city dropped to less than 10 meters.
Photos from Harbin showed residents covering their mouths with masks and scarves, and moving like ghostly shadows through the fog. Cars and motorcycles are moving slowly as traffic came to a standstill with traffic lights barely visible. .
Just days previously , the World Health Organization's International Agency for Research on Cancer (IARC) classified air pollution as a carcinogen(致癌物) . It stated that there is " sufficient evidence" that exposure to outdoor air pollution causes lung cancer and also linked it with an increased risk of bladder cancer. It's said that exposure has increased significantly particularly in " rapidly industrial countries with large populations".
"The air we breathe has become polluted with a mixture of cancer-causing substances" , Dr Kurt Straif , head of the IARC said in a press released. "We now know that outdoor air pollution is not only a major risk to health in general, but also a leading environmental cause of cancer deaths. "
On the Chinese social media site Weibo , many users complained about the pollution and shared their concerns. References to "feed people with smog "have become popular on Weibo and there is a sarcastic play on the expression "serve the people" , as the two have a similar pronunciation.
"The impact of air pollution on people will be gradual. 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.
小题1: As thick smog has become a common scene in Harbin, ______
A．students there can go to school as usual
B．residents in the city can see as far as 20 meters
C．traffic lights can be easily visible
D．the urban traffic has been seriously influenced小题2: When exposed to outdoor air pollution, what kind of disease can be caused?
A．Cancer of stomach
B．Breast cancer
C．Bladder cancer
D．Ovarian cancer小题3: According to Dr Kurt Straif , we can learn that_______.
A． the effect of the. smoggy weather is gradual
B． air pollution is the man environmental cause, of cancer deaths
C．exposure has greatly increased in countries with large populations
D．"feed people with smog" has bee a hot word小题4: The purpose of this passage is to
A．awaken people's environmental awareness
B．warn people not to go out in smoggy weather
C．call for the public to wear their masks
D．advise people not to live in Harbin
小题1:D
小题2:C
小题3:B
小题4:A
在本文中详细描述了哈尔滨PM2.5超标，说明了空气污染对于人类健康的影响，特别会导致一些诸如肺癌，膀胱癌的发生。目的在于提高人们对于环境保护的意识。
小题1:D
【试题解析】细节题。根据文章2,3段中的Cars and motorcycles are moving slowly as traffic came to a standstill with traffic lights barely visible和Schools, motorways and an airport were closed on Tuesday as visibility in some areas of the city dropped to less than 10 meters可知由于PM2.5浓度太高，导致能见度降低，车辆无法迅速行驶，导致交通堵塞。故D正确。
小题2:C
【试题解析】细节题。根据第4段It stated that there is " sufficient evidence" that exposure to outdoor air pollution causes lung cancer and also linked it with an increased risk of bladder cancer.可知接触到被污染的空气和肺癌以及膀胱癌有关。故C正确。
小题3:B
【试题解析】推理题。根据文章第五段"The air we breathe has become polluted with a mixture of cancer-causing substances" , Dr Kurt Straif , head of the IARC said in a press released. "We now know that outdoor air pollution is not only a major risk to health in general, but also a leading environmental cause of cancer deaths. "可知Dr Kurt Straif认为空气污染不仅仅是健康的威胁而且也是一个主要导致癌症死亡的原因。故B正确。
小题4:A
【试题解析】推理题。作者在本文中详细描述了哈尔滨PM2.5超标，说明了空气污染对于人类健康的影响，特别会导致一些诸如肺癌，膀胱癌的发生。目的在于提高人们对于环境保护的意识。故A正确。
【长难句解析】
Photos from Harbin showed residents covering their mouths with masks and scarves, and moving like ghostly shadows through the fog.
【翻译】来自哈尔滨的作品显示当地居民用口罩和围巾盖住他们的嘴，像魔鬼一样穿过浓雾。
【分析】本句中含有一个宾语及宾语补足语的结构，动词show后面的宾语是residents，宾语补足语的动词cover与宾语residents构成主动关系，使用使用现在分词表示主动和正在进行。