Question

China’s government has been trying all measures to reduce pollution in the past few years. Now people can enjoy a fresh environment everywhere. The following two graphs are adopted from the column of “City Information” on the webpage of Beijing Review.

Graph 1: Olympic Cities Air Quality Report

City	Date	API	Major Pollutant	Air Quality Degree	Quality Condition
Beijing	Sep. 8	37	N/A	Ⅰ	Very good
Qinhuangdao	Sep. 8	52	PM10	Ⅱ	Good
Qingdao	Sep. 8	68	PM10	Ⅱ	Good
Shanghai	Sep. 8	67	PM10	Ⅱ	Good
Shenyang	Sep. 8	88	PM10	Ⅱ	Good
Tianjin	Sep. 8	54	PM10	Ⅱ	Good

Graph 2: Chinese National Standard

API Values	Levels of health concern	Colors
When the API is in this range:	...air quality conditions are:	...as symbolized by this color:
0 to 50	Very good	Blue
51 to 100	Good	Green
101 to 150	Slight pollution	Yellow
151 to 200	Moderate pollution	Orange
201 to 250	Medium pollution	Red
251 to 300	High pollution	Purple
301 to 500	Hazardous	Brown

Notes:

**API stands for Air Pollution Index(指数).

**Particulate matter (PM10) is a major component of air pollution that threatens both our health and our environment. It consists of very small liquid and solid particles floating in the air.

**Sulfur dioxide(SO2) acts as an acid．Inhalation(吸入) results in labored breathing, coughing, or a sore throat and may cause permanent lung damage.

1.If your city is symbolized by either red or purple, the pollution in your city is _______.

A. Moderate or high.    B. Moderate or slight.

C. Medium or high.    D. Medium or slight.

2.Which of the following statements is TURE?

A. With API value below 150 the air is free from being polluted.

B. The colors from purple to Yellow indicate the air quality is becoming much worse.

C. When there are floating solid particles and dust in the air, it is dangerous pollution.

D. On September 8th the color-symbol of Beijing City’s air quality is ‘Blue’.

3.When more citizens are beginning to have labored breathing soon after they are in the open air, it suggests that_______.

A. there is a large amount of sulfur dioxide in the air

B. it is so cold that they may have caught a cold

C. they are starting to cough or have a fever

D. they must be infected with permanent lung disease

Answer

1. C

2. D

3. A

【解析】

本文是一篇新闻报道。在过去的几年里，中国政府一直在尝试所有的措施来减少污染。现在人们可以到处享受一个新鲜的环境。本文的两幅图取自《北京周报》网页“城市信息”栏目，来说明一些城市的污染情况。

1.推理判断题。根据Graph 2: Chinese National Standard中201 to 250，Medium pollution，Red；251 to 300，High pollution ，Purple.可推知，如果你的城市以红色或紫色为象征，那么你的城市的污染程度是中等或高的。故选C。

2.推理判断题。根据Graph 1: Olympic Cities Air Quality Report中Beijing，Sep. 8 ，37和Graph 2: Chinese National Standard中的0 to 50 ，Very good，Blue。由此推知，9月8日，北京空气质量的颜色象征是“蓝色”。故选D。

3.推理判断题。根据Notes:中二氧化硫(SO2)作为酸。吸入会导致呼吸困难、咳嗽或喉咙痛，并可能导致永久性肺损伤。故选A。