【題目】根據(jù)短文內(nèi)容，從后面的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。

Smoggy weather has become common in China. But these days, air pollution levels in the northeastern city of Harbin surpassed the previous record levels.

The city was essentially shut down after PM2.5, fine particulate（微粒的） pollution that is considered dangerous, reached levels of 1,000 micrograms per cubic meter-【1】. And therefore schools, motorways and an airport were closed on Tuesday as visibility in some areas of the city dropped to less than 10 meters.

【2】. It stated that there is “ sufficient evidence” that exposure to outdoor air pollution causes lung cancer. 【3】. Moreover, it’s said that exposure has increased significantly particularly in “rapidly industrial countries with large populations”.

On the Chinese social media site Weibo, many users complained about the pollution and shared their concerns. 【4】. Nowadays, there is a sarcastic（諷刺的） play on the expression “serve the people”, as the two have a similar pronunciation.

“【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,” a doctor said.

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 WHO 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（膀胱）cancer is also closely connected with it.

【答案】

【1】F

【2】C

【3】G

【4】E

【5】A

【解析】

試題分析：在本文詳細(xì)描述了哈爾濱PM2.5超標(biāo)，說明了空氣污染對(duì)于人類健康的影響，特別會(huì)導(dǎo)致一些諸如肺癌，膀胱癌的發(fā)生。目的在于提高人們對(duì)于環(huán)境保護(hù)的意識(shí)。

【1】F 根據(jù)前一句.....reached levels of 1,000 micrograms per cubic meter可知哈爾濱的PM2.5的含量達(dá)到了每立方米1000，這是非常非常高的數(shù)據(jù)，為了強(qiáng)調(diào)PM2.5的濃度很高很危險(xiǎn)。F項(xiàng)“40 times the safety level reminded by the World Health Organization.”這是國(guó)家標(biāo)準(zhǔn)的40倍，恰好在強(qiáng)調(diào)這種情況。故F項(xiàng)符合上下文串聯(lián)。

【2】C 根據(jù)橫線后一句It stated that there is “ sufficient evidence” that exposure to outdoor air pollution causes lung cancer.有明確證據(jù)說明接觸戶外空前污染會(huì)導(dǎo)致肺癌。這與C項(xiàng)“Just days previously, the WHO classified air pollution as a carcinogen（致癌物）.”說法相一致。

【3】G 橫線前面一句It stated that there is “ sufficient evidence” that exposure to outdoor air pollution causes lung cancer.可知接觸到空氣污染會(huì)導(dǎo)致癌癥，且C項(xiàng)說明世界衛(wèi)生組織宣布空氣污染與癌癥有關(guān)，所以橫線句仍然是這一說法的論據(jù)，故G項(xiàng)“And meanwhile, the risk of bladder（膀胱）cancer is also closely connected with it.”與橫線前一句都在證明本文第一句。

【4】E 根據(jù)橫線前一句On the Chinese social media site Weibo, many users complained about the pollution and shared their concerns.可知在微博上很多人都在抱怨空氣污染并表示擔(dān)心。橫線句內(nèi)容應(yīng)該是人們的抱怨，E項(xiàng)“References to “feed people with smog” have become popular on Weibo.”這是這種說法。

【5】A 根據(jù)橫線后一句There won’t be a sudden outbreak of symptoms空氣污染帶來的癥狀是不會(huì)一下子就爆發(fā)出來的，有一個(gè)漸進(jìn)的過程，所以A項(xiàng)“The impact of air pollution on people will be gradual.”與之相一致。

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