Do you know what smog is? Smog is dirty air that looks like (1) _____ and smoke. It is a type of air pollution.In big cities, smoke from cars and (2)_____goes up into the sky and meets the moisture in the air. When the air cools down at dawn, a huge amount of the dirty (3) ___ in the sky comes near the ground. It forms smog. It is a (4) ___ for people all over the country. It is bad for our health and as a result, more and more people have (5) ___ diseases. People need to wear masks to protect themselves in smoggy days.
举一反三
- to dirty air can cause people to suffer from
- Too much ________ dirty air can cause people to suffer from allergies and diseases that will eventually affect people’s health.
- According to Alex, as students, the best we can do is to _______. A: call on more students to save energy in our daily life B: ignore the air pollution reports and believe that the blue sky will come back C: advocate people to pay more attention to air pollution D: devote ourselves to further research in the environmental studies
- Too much to dirty air can cause people to
- 四. 段落翻译All around the world， large cities have the same problem：air pollution．Mexico City has very bad air．The air there is dirty and very unhealthy．Cars are one reason for the dirty air．Many Mexicans own their own cars and drive in the city．The factories in the area also cause air pollution．It is not easy to clean up the air in large cities．The government has to make new laws．