遇烟雾火警撤离时，正确的方式（） A.湿毛巾捂鼻 B.半弯腰身体 C.有电梯开着就坐

Most people work or study from Monday to Friday. The weekend is usually a time of rest. But today's Chinese teenagers can hardly rest during the weekends.

According to a survey, 24% of the Grade 8 students in Beijing have classes at the weekend. Over 40% of the middle school students have less than eight hours’ sleep each night because of study.

And this isn't only in Beijing. Ji Chunying is a Grade 9 student in Guangzhou. The 14-year-old girl has to get up at 6:45 am on Saturday. Then she has a whole day of classes. On Sunday, she goes to extra classes for math and physics.

But Ji doesn't complain. She says her classmates all work very hard.

Finding time to have fun

Zhao Yang, 13, is from Dalian, Liaoning. As a Grade 8 student, Zhao's weekend is less busy. But he still spends Saturday in school. On Sunday, after finishing homework, he plays basketball. "I feel happy because I still have time to do the things I like," he said.

Some students are much luckier. They don't have to go to school on the weekend.

Ding Yi, a Grade 8 student from Laiwu, Shandong, is one of them. And she's a top student.

During the weekend, Ding usually gets up at 8 am. Then she spends some time doing homework. After that she is free to go shopping or watch TV.

Ding said her mother once wanted her to try extra classes. But when they asked Ding's teacher about it, the teacher said it was unnecessary.

"My teacher said I don't need to push myself too much. Learning well at school is enough," Ding said. "I feel pretty lucky."

小题1:Over 40% of the middle school students have less than eight hours sleep each night because of ___________.

A．playing computer games

B．playing with friends

C．busy study

D．watching TV小题2:How many students are mentioned in this passage?

A．2.

B．3.

C．4.

D．5.小题3:We can learn from the passage that ___________.

A．Some middle school students can enjoy their weekend.

B．All the students in China are busy studying on the weekend.

C．Every student in China has to go to extra classes on the weekend.

D．All the students complain about their busy weekend.小题4:The above text may be a _______.

A．a story of science

B．school notice

C．short play

D．news report

（）用未清除风窗玻璃上的雨水、雪或尘土，确保驾驶员能有良好的视线。

A.电动刮水器

B.风窗玻璃清洗装置

C.风窗除霜装置

D.电动刮水器、风窗玻璃清洗装置、风窗除霜装置都不对

After a new reform, the number of the products in the factory is now ________ it was in 2003.　　

A．three times as larger as

B．more than three times　　

C．twice as large as

D．as twice large as

细菌是单细胞生物，四联球菌中每一个细胞都是一个独立的生活个体。