Mrs. Luo is a teacher. She asked her students to hand in their homework through a QR code (二维码). “When students finish the homework, they keep it on WeChat. So I can check their homework everywhere using my computer or mobile phone,” said Luo.
Most 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 Tingting, a student of Luo’s.
“The paper is not easy to keep, but the code is easy to keep and share,” Luo 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 little time communicating with teachers. But in fact, it is unnecessary. Students still need to ▲ information in books and write it down when they do their homework, which doesn’t take them too much time. As for teachers, it allows them to check the students’ work at any time. And it is also an easy way to share homework with other students.
1.How did Mrs. Luo ask her students to hand in their homework?A.Through e-mail. | B.Through the post office. | C.Through a QR code. |
A.Interesting. | B.Boring. | C.Difficult. |
A.hand in homework in time | B.improve their study | C.not fall behind times |
A.look out | B.look up | C.look after |
A.A new way to keep homework and its advantages. |
B.A new way to hand in homework and its advantages. |
C.A new way to do homework and its advantages. |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2