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In March, 2020, a1. of the students couldn't go to school as usual. They had to stay at home to have lessons on the Internet. Liu Ming is an English teacher. He changed the way of teaching English. He taught English online. In order to make his lessons more creative, he asked his students to hand i2. their homework through a OR code (二维码). Mr Liu said, "When students finish doing their homework, they keep it on WeChat. Then each student makes his/her o3. QR code and gives it to me. So I check their homework anywhere by  4. (use) my mobile phone."

Mr. Liu can receive the homework by email, QQ and WeChat. When Mr Liu scans (扫描) his students' QR codes, their homework a5. on his phone. He finds that their homework becomes more colourful, with many pictures, music and even videos.

Liu Ming's students like the new way and think it is interesting. We are living in the information age. Many students like to work with 6. (computer). The homework on the paper is not easy to keep, but the code is easy to keep and share. Mr Liu said, "It's worth 7. (try) to use new technology in education. Education itself is a kind of creation. I don't want my students to fall behind the times."

However, some parents are 8. (worry). They are afraid that their children will spend too much time playing games and less time studying. But in fact, most of the students still pay more a9. to their lessons. For students, it doesn't take them too much time. For teachers, it allows them 10. (check) the students' work at any time. And it's also an easy way to share homework with other students.

九年级英语单词填空中等难度题

少年,再来一题如何?
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