题目内容

_____Nanshan Middle School you see today is ______different school from what it used to be.

A.The; aB./; theC.A; theD.The; /

A

解析试题分析:考查冠词。第一空是专有名词The Nanshan Middle School前面要使用the表示特指;第二空后的school是一个可数名词,故使用a表示泛指。句意:今天你所看见的南山中学是一座和以前完全不一样的学校。故A正确。
考点:考查冠词
点评:本题着重理解定冠词和不定冠词的区别,定冠词the表示特指,不定冠词a/an表示泛指;对于冠词特指和泛指的考察是历年来高考的必考点,平时的学习要多进行积累,仔细分析特指还是泛指。同时,更为重要的是要多去积累习惯表达,特殊表达,这也是近几年高考习惯考的地方。总而言之,多解题、多理解、多积累才是关键。

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Air pollution is one of the hottest topics at present because poor air quality is an important factor in both the incidence and cause of respiratory(呼吸道) diseases.

Zhong Nanshan, a deputy to the NPC and a member of the CAE, said recently when the concentration of PM2.5 rises by 10 micrograms per cubic meter, hospitalization may rise by as much as 3.1 percent. Meanwhile, when the concentration of PM2.5 rises from 25 mgs per cubic meter to 200, the average daily death rate may rise to 11 percent.

Zhi Xiuyi, a leading expert in lung cancer treatment and also vice-president of the CATS, said medical authorities used to focus on tobacco control as a primary means of preventing lung cancer. "But in fact, air pollution is no less harmful than smoking and our research team released a report earlier this year showing that the cancer rate in Beijing is closely related to industrialization," he said.

The report, conducted by the Beijing Institute of Cancer Research, shows that the number of cancer patients in China has increased markedly during the past ten years. Chaoyang District, the city's main area of industrialization, has the highest incidence of cancer, almost double that of Yanqing, an area on the outskirts of the city. About four out of 1000 Chaoyang residents have some form of the disease, with lung cancer at the top of the list.

"The risk of having cancer largely depends on the length of exposure and the concentration of noxious gases(有毒气体的浓度)," said Zhi. In response to the doubt whether seven years' exposure to poor air quality will almost result in cancer, Zhi said the time scale was taken from research overseas that suggested the rate of incidence generally peaked in the seventh year of exposure to a heavily polluted environment.

1. What is the passage mainly about?

A. Medical researches on environment.

B. The disadvantages in big cities.

C. The only reason for the lung cancer.

D. Poor air quality contributing to lung cancer.

2.What can you conclude from the 3rd paragraph?

A. Compared with smoking, air pollution is more harmful.

B. Air pollution is as harmful as smoking.

C. It is very important to prevent people from smoking.

D. People realize the importance of keeping healthy.

3.If there were 3,000,000 people in Chaoyang District, how many would have respiratory diseases?

A. 16000?????? B. 12000?????? C. 8000??????? D. 7500

4.What can you infer from the passage?

A. Industrialization has its weakness as well as strengths.

B. The average death rate rises with different ages and places.

C. The air in Beijing is much more polluted than that in the other cities.

D. The more heavily-polluted air you breathe in, the sooner youll have cancer.

 

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