When the bell rings, every student takes out an iPad. The light from the screens makes their young faces pretty and lively. That’s what happens every day at my school in the US. We use iPads in class.
I felt surprised and excited when I got an iPad the first day I arrived at the school. But it was not free. I spent about $100 to rent (租) it for three years.
Every iPad at my school has a special learning system (系统)
called Focus. Teachers put their teaching materials like textbooks and PPTs on it. When we have classes, we enter the system and download (下载) the materials with our iPads.
It makes the classes interesting and efficient (高效的). For example, a few weeks ago, we learned about London in the UK. Our teacher prepared a video in which we saw many places of interest in London. We could not only watch the video, but also see the words at the same time. Because of the video, I know more about the city.
We also do our homework with iPads. We can know how well we do our homework right after we submit (提交) our homework.
However, there are still some bad points about learning with iPads. Some of my classmates play games or surf the Internet in class.
I believe the key to use iPads well is to have good self-control (自制), isn’t it?

In the writer’s class, every student ________.

A．gets a free iPad from the teacher

B．plays games on iPads in each class

C．shares an iPad with their classmates in class

D．rents an iPad to use at school for three years

The underlined word “Focus” is ________.

A．a special learning system

B．PPTs and videos

C．teachers’ teaching materials

D．the name of the iPad at school

When students are learning with iPads, they should not ________.

A．play games

B．watch some videos

C．download the materials

D．submit the homework

According to the example in Paragraph 4, we learn that ________.

A．students don’t like to use iPads in class

B．iPads are not useful when having classes

C．students use iPads to watch videos every class

D．iPads make the classes interesting and efficient

What does the writer think of using iPads in school?

A．Students should use iPads as often as possible.

B．To use iPads in school is very bad for students’ eyes.

C．Students should have good self-control when using iPads.

D．All students should use iPads to surf the Internet in class.