When students got their textbooks at the beginning of the year at San Mateo High School, they also received the Yondr pouch（小袋子）, a locking device for their phones. The phone is put into it and gets locked through a magnetic device（有磁性的装置）. It’s not unlocked again until the final bell rings. The process will be repeated every day for the rest of the school year.
Adam Gelb, the vice-president of the school, wishes to create phone-free spaces, because now most students just lower their heads and rarely communicate with each other.
Brad Friedman, another teacher at the school, said he was worried about the overuse of phones at school. He said he often saw students completely lost themselves in the mobile phones, some not talking at all with other students. Recently, he is already seeing the difference. “Everyone else was talking and eating lunch together. That’s what I wasn’t seeing enough of when phone usage was at its worst,” he said.
A senior at San Mateo High School, Djelani Phillips Diop, said he definitely panicked（受惊）at first when he heard he had to lock his phone. “I panicked, I guess. Last year when I had my mobile phone, I used it every day,” he said.
In case of emergency（紧急事件）, every classroom has the unlocking device. Teachers are still able to use their own cellphones and desk phones. “We’ve gotten all 1,700 students’ unlocked in a matter of minutes,” said Gelb. “We spoke to four students who, despite their first anger, agreed that a phone-free school experience has its benefits.”
根据短文内容，选择最佳答案。（共5小题）【小题1】What can we learn about the Yondr pouch from Paragraph 1?
| A．It is a phone only used by students. | B．It is a locking device for phones. |
| C．It is a device to be used for a year. | D．It is a bell to unlock phones. |
| A．make the students lose themselves |
| B．help the students to be happier |
| C．create spaces to use phones at any time |
| D．encourage students to have more communication |
| A．They talked with each other when eating lunch together |
| B．They did sports after class |
| C．They used their mobile phones all the time. |
| D．They spent much time reading. |
| A．Supportive. | B．Worried | C．Disagreeing | D．Doubtful |
| A．The students were willing to have their phones locked at first. |
| B．The phone will not get unlocked when there is an emergency. |
| C．Some students came to realize the advantages of the phone-free program. |
| D．Most students prefer eating lunch together with their phones in hand |
