Unit 2 Robots reading课时作业

第一节 阅读理解

　　　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