The Indian capital of New Delhi recently passed Beijing, China, for having the world's most polluted air. Now, Indian Prime Minister Narendra Modi is starting a national air quality index to monitor pollution levels in 10 of the country's major cities.

Mr. Modi started the air quality index at a two-day conference that included the environment and forest ministers from all Indian states. Officials at the conference are considering measures to strengthen environmental laws. Over the next two years, the index will be expanded to about 66 cities with a population of more than one million.

The new air pollution index will measure eight pollutants. The index will use color coding to describe the air's influence on human health. That will make it easy for citizens in big cities like New Delhi, Bangalore and Chennai to know their city's air quality.

Mr. Modi said that India has a long tradition of respecting the environment and can show the rest of the world the way in fighting climate change. He also urged Indians to reduce waste and save resources as they become more wealthy.

The high levels of air pollution in Indian cities are a major concern for residents（居民）. The World Health Organization says that 13 of the world's 20 most polluted cities are in India. The worst is Delhi. Indian officials do not agree with the WHO's findings. However，pollutants in Delhi's air in winter months can reach up to three times the safe , experts say that’s the limits on some days.

Doctors have warned that rising levels of air pollution are leading to an increased number of citizens with many diseases. About 620,000 people die of pollution-related diseases every year.

Ms. Roychowdhury also says the new index could make it easier for governments to demand difficult measures, such as restrictions on private vehicles.

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1.Which of the following cities’ air is the worst polluted now?

A Beijing

B New Delhi

C Bangalore

D London

解析：选B。B。细节理解题。根据第1段第1句话，新德里超过北京成了最严重的污染城市，可知它现在就是污染第一严重的地方。

2.What is Mr. Modi’s measure to fight against air pollution in India?

A A two-day conference.

B Strengthening environmental laws.

C Air quality index.

D Letting people know their city’s air quality.

解析：选C。C。推理判断题。根据第1段第2句可知，莫迪所提出的建议是用‘空气污染指数’来监控，所以C选项是正确的。

3.According to Mr. Modi, traditionally, Indians____in their history.

A save resources

B reduce waste

C fight climate change

D respect nature

解析：选D。D。句子理解题。根据第4段第1句Mr. Modi said that India has a long tradition of respecting the environment 可知，印度人有尊重自然的传统。

4.According to Mr. Modi, traditionally, Indians____in their history.

A save resources

B reduce waste

C fight climate change

D respect nature

解析：选D。D。句子理解题。根据第4段第1句Mr. Modi said that India has a long tradition of respecting the environment 可知，印度人有尊重自然的传统。

5.What attitude do Indian officials have towards the WHO’s findings?

A They don’t want to admit them.

B They are concerned about them.

C They respect the WHO’s findings.

D They will monitor their findings.

解析：选A。A。细节理解题。根据第5段可知，世界卫生组织发现，世界上污染最严重的20个城市中，有13个在印度，印度官员对这一发现难以接受。