— _________ crowded Guanqian Street is!
— Yes, because the number of people has kept _________ greatly since 1990.
A.What; rising B.How a; raising C.What; raising D.How; rising
—As a member of bus drivers, I am proud of Wu Bin.
—___________. He is a hero in my heart.
A.So am I B.So do I
C.So I am D.Neither am I
After trying several times, I _________ to see him.
A.managed B.won C.succeeded D.came
If there are _________ cars, the air in our city will be _________ dirtier.
A.less; more B.more; more C.more; much D.more; less
Although you failed four times, I still hope you can have ______ try.
A.the fifth B.a fifth C.the fourth D.a fourth
Mr. Guo is a teacher from Xi’an. He asked his students to hand in their homework through a QR code. “ We spent an hour or two in class learning how to generate (使产生) the codes, and in the end everything gets easier,” said Guo. “When students finish the homework, they keep it on We Chat. Then, each student makes his own QR code and gives it to me. So I can check their work anywhere using my computer or telephone.”
The QR codes can be sent to Mr. Guo by email, QQ and We Chat. When Guo scans (扫描) his students’ QR codes, their homework appears on his phone. He finds that their homework becomes more creative, with many pictures, music and even videos.
Guo’s students like the new way and think it is interesting. “We are living in the information age. Many students like to work with computers, which makes learning more fun,” said Ting Ting, a student of Guo’s.
“The paper is not easy to keep, but the code is easy to keep and share,” Guo said. “It is worth trying 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 worried. They are afraid that their children will spend too much time on computers and less time communicating with teachers. But in fact, it’s unnecessary. Students still need to look up information in books and write it down when they do their homework. They only use the codes when they hand in their work, which doesn’t take them too much time. Also for teachers, it allows them to check the students’ work at any time. And it’s also an easy way to share homework with other students.
阅读短文，根据短文内容，回答下面的问题。
1.According to the passage, Guo’s students can keep their homework on We Chat, can’t they?
2.How can the QR codes be sent to Mr. Guo?
3.What is one of the advantages of the new way of handing in homework?
4.What do some parents worry about?
5.What do you think of the new way of handing in homework?
