1. People used to burn (煤)to cook or keep warm.
科目：初中英語 來源： 題型：
Have you ever paid attention to the Air Quality Index (空氣質量指標）or AQI reported in the newspaper? The AQI helps us understand what the air quality around us means to our health. The AQI uses colors,numbers and words to tell us about the air. Let's see what these colors and numbers mean.
AQI colors | AQI numbers | Health word( s) | What to do |
Green | 0-50 | Good | Just enjoy the clean air! |
Yellow | 51-100 | Moderate(適中) | Air quality is fine for most people. |
Orange | 101-150 | Unhealthy for sensitive (敏感的）groups | Active children and adults and people with lung disease should spend less time outdoors. |
Red | 151-200 | Unhealthy | People with lung disease and active kids and adults shouldn't spend too long time outdoors. Everybody else should try to spend less time outside. |
Purple | 201-300 | Very unhealthy | People with lung disease and active kids and adults should not spend any time outdoors. Everybody should try not to go outside. |
根據短文內容，選擇最佳答案。
( ) 1. If the Air Quality Index is ， the air quality is good for most people.
A. orange B. red
C. purple D. yellow
( ) 2. When the AQI color is green,the AQI number may be .
A.40 B.80 C.120 D. 160
( ) 3. The ____ AQI numbers are,the air quality is.
A. bigger;better
B. smaller;better
C. bigger;nicer
D. smaller;worse
( ) 4. The doctor may advise Mr. Zhang__ if the AQI number is
between 151 to 200 because of his lung disease.
A. to stay outdoors often for fresh air
B. to spend less time outdoors
C. not to stay outdoors for a long time
D. never to spend any time outdoors
( ) 5. Which of the following is TRUE?
A. If the AQI number is 140,the AQI color will be red.
B. If the AQI color is purple,the air is the best for people.
C. People with lung disease are very sensitive to the air.
D. The AQI can't help people know the air quality.
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科目：初中英語 來源： 題型：
5. 這片樹林里以前有很多小鳥，可現在都不見了。
There used to be many birds in the woods,but now they_________.
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科目：初中英語 來源： 題型：
3. 據報道，動物園有些動物吃了游客隨章扔的食物而患重病。
______ some of the animals in the zoo are badly ill because they eat the food thrown by visitors freely.
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科目：初中英語 來源： 題型：
3. 我們學校變化很大，你最好來參觀一下。 Our school has changed a lot. You'd better____ ____ ____ ____ .
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