题目内容
——Didn’t you see Tom when he passed you?
——Sorry, I the kite in the sky.
A.watched B.was watching
C.had watched D.have been watching
B
【解析】
试题分析:句意:--当汤姆从你身边过时你看见他了吗?---对不起,没有。我刚才一直在看天空中的风筝。A.watched一般过去时;B.was watching过去进行时; C.had watched过去完成时; D.have been watching现在完成进行时。根据语境表示刚才汤姆经过的时间段,故选B。
考点:考查动词时态的用法。
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.According to Graph 1, which of the following cities has the worst air pollution?
A. Qinhuangdao. B. Tianjin.
C. Qingdao D. Shenyang.
2.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.
3.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’.
4.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