Anhui. In some areas, it was down to 200 meters.

　　People usually set off firecrackers ( 爆 竹 ) to celebrate the Spring Festival. But

because of the smog, this year seemed very quiet. It was really different. A man called Zhang Wei said that his friends and he hadn't set off a single firecracker.

　　"We all suffered from last month's smog. If we don't call an end to the firecrackers, the environment will get worse and worse during the holiday." Said Zhang Wei. He called on more people to set off fewer firecrackers during this year's Spring Festival holiday by putting up a notice in his neighborhood.

　　More Chinese looked forward to celebrating the holiday in a greener way. They decided not to set off firecrackers. They also decided not to waste food. They said that the new celebrations sounded fashionable.

　　To clean the sky, more than ten provinces including Guangdong, Zhejiang and Jiangsu have started to use national 4 standard (标准), which is expected to reduce (减少) vehicle emission (车辆排放) by 30% to 50%.Beijing even has started to use the stricter national 5 standard.

　　We still have a lot to do to improve the air quality. For example, using public transportation as much as possible is not a hard thing for us to do, but it matters a lot.

( )6.What happened in a large part of China this January?

A. It experienced larger amounts of smog.

B. People set off lots of firecrackers.

　　　C. There was a heavy rain.

　　　D. Many car accidents happened.

( )7. How do people usually celebrate the Spring Festival in China?

A. By putting up a notice

B. By setting off firecrackers.