1. (2021·夹江模拟) 阅读下列短文，从每题所给的几个选项中，选出最佳选项。

Primary and middle school students in Shandong can't use mobile phones or tablets(平板电脑) in classrooms. It started from November 2018, according to a regulation(法规). This is to protect students' eyes.

The regulation calls on schools to keep such things for the students during school time if they bring them to school. It asks teachers not to depend on electronic devices(电子设备) when teaching or giving homework. Parents should also watch the time their children spend on electronic devices.

More than 40 percent (百分比) of primary and middle school students in Shandong were glasses. People believe the government, schools, parents and students can work together to cut down on the number in the future. Wang Jing, the mother of two primary school students in Qingdao, welcomes the plan. "Young children are easily addicted to(沉迷) electronic devices and it will hurt their health and school grades," she says.

Shandong isn't the only one to take action. A regulation came out last May in Jiangsu. It asked children not to bring mobile phones to class. And there is good news: a UK study finds that students do better when they can't get hold of a phone at school.

1. （1） What is the regulation in Shandong for?

   A . To make schools safe for students. B . To help protect students eyes. C . To let students read more books.
3. （2） What does the underlined part "such things" in Paragraph 2 refer to?

   A . Electronic devices. B . Homework. C . Regulations.
5. （3） Teachers should ______ according to the regulation. .

   A . give less homework B . spend less time on teaching C . use computer less in class
7. （4） Why does Wang Jing welcome the plan?

   A . Because she wants her children to be healthy. B . Because she does not use mobile phones herself. C . Because other provinces also took action on this problem.
9. （5） Why did the writer mention（提到）a UK studying in the last paragraph?

   A . To talk about another problem. B . To tell UK parents to take action too. C . To show that the regulation is helpful.