题目内容
Listening is the most important skills in learning English. In order to improve our listening, we should _______.
(1) Listen to the English tapes or CDs when we have time
(2) Watch English movies once a week
(3) Talk to foreigners and listen to their replies carefully
(4) Listen to the teacher in class carefully and we needn’t listen to our classmates when they are speaking.
(5) Stay up late to listen to English materials every day.
A. (1) (2) (3) B. (1)(3)(5) C. (2)(4)(5)
阅读理解。
PM2.5--Killer in China 10:00 a.m. April 1st,2014
Rank of Air Pollution | City | AQI | PM2.5 μg/m3 | PM10 μg/m3 | SO2 μg/m3 | NO2 μg/m3 | CO μg/m3 | O3 μg/m3 |
2 | Sanya | 24 | 13 | 21 | 1 | 10 | / | 36 |
95 | Shanghai | 72 | 52 | 71 | 13 | 48 | 1.1 | 96 |
178 | Harbin | 78 | 45 | 78 | 38 | 43 | / | 54 |
259 | Beijing | 233 | 184 | 201 | 32 | 72 | 1.5 | 41 |
261 | Tangshan | 281 | 231 | 327 | 132 | 99 | 4.1 | 53 |
0--50 | Excellent | Take part in activities &breathe fresh air |
51--100 | Good | Take part in activities |
101--150 | Light pollution | Have outdoor activities less |
151--200 | Middle pollution | Have outdoor activities less |
201--300 | Heavy pollution | Stop outdoor activities |
>300 | Serious pollution | Mustn’t go outside |
AQI
PM2.5细颗粒物。PM10可吸入颗粒。AQI空气质量指数。
PM2.5（单位：μg/m3）表示每立方米空气中可入肺颗粒物的含量。
根据表格所提供的信息选择最佳答案。
1.The AQI in Beijing is much __________ than that in Sanya.
A. better B. worse C. bad
2.The air in ___________ is both heavy pollution.
A. Shanghai and Beijing
B. Beijing and Tangshan
C. Tangshan and Harbin
3.If you are in Tangshan, you had better _________.
A. have outdoor activities
B. breathe fresh air
C. stay at home
4.The amount of _______in the air in Sanya is the same as that in Harbin.
A. SO2 B. O3 C. CO
5.Which of the following is not TRUE according to the information above?
A. The air in Harbin is middle pollution, we’d better not go out to work.
B. We can know the AQI of April 1st from the table.
C. O3 in Shanghai is the most of all the cities.