你的数学水平一定很高吧，那么就成功地演算下列算式吧！

　　(1)seven minus two equals ________

　　(2)three plus six equals________

　　(3)________ plus three equals seven

　　(4)one plus ________ equals two

　　(5 )seven minus two equals ________

　　(6)________ plus three equals five

　　(7)seven minus one equals ________

　　(8)nine minus one equals________

　　(9)two plus ________ equals nine

根据对话意思和所给首字母，写出完整正确的单词

The Proper Way(s) for Students to Relax

I am the monitor of Class 3, Grade 9, No. 22 Middle School. Recently I have made a survey of the students in my class on ways to r   51      after class.

There are 60 students in my class (31boys and 29 girls). D   52      students have different ways to relax. H   53     of the students often watch TV. 12 students like to play computer games or c  54    with classmates on the Internet w   55    only 8 enjoy listening to music. 5 students think doing sports is a good way and another five are too busy  to relax.

It’s Friday evening. My daughters, 3 and 9, sigh(叹息) when I gently take the iPads away from their laps. One by one, our screens are turned off. We light the candles and sit down to have a big meal.

Most people in our lives know they will not be able to contact us by using computer or moblie  phones for 24 hours. And so it has gone, every week for three years. We call it our “Technology Shabbat(科技安息日)" which lasts from sunset on Friday to sunset on Saturday.

I first understood the importance of disconnecting in 2008, when my father was told that he

had got brain cancer. Some days he would have ony one good hour, and I wasn’t willing to be disturbed when I was with him, so I’d turn off my mobile phone.

Soon after, encouraged by National Day of Unplugging(全国断网断电日) on March 1st, my husband and I decided to unplug for one full day every week.

During our “Technology Shabbats”, time slows. Our Saturdays now feel like mini-vacations. We drive our car or ride our bike. We, with our kids, work in the garden, play board games and cook meals. I feel more balanced. I feel like a better mother, wife and person.

Keeping a balance between the good and the bad of technology is my lasting state. The technology we’ve created makes it possible for us to share knowledge and take in carious ideas all over the world. But the technology also take something away from us. When we stay up late at night linking(连接) from website to website or sending messages or e-mailing, we click again, and again, and again until we’ve overloaded(超负荷的).

When we rush into the time full of high technology, it's necessary for us to pay attention to what we are doing online and when we should go off.

I will always remember the most important thing in my family: “Technology Shabbat".

1. When is “Techtwhgy Shabbat' in the writer's family?

A. Only on Sunday.

B. From sunset on Friday to sunset on Saturday.

C. Only on Friday.

D. From sunset on Saturday to sunset on Sunday.

2. The writer's family have “Technology Shabbat" every week mainly becausc they hope to ______.

A. save energy 

B. enjoy life together

C. stay away from others

D. follow National Day of Unplugging

3. What do the writers family NOT do during their “Technology Shubbats”?

A. They drive their car or ride bikes for mini-vacations.

B. They light the candles and sit down to have a big meal.

C. They work in the garden, play board games and cook meals.

D. They stay up late at night linking from website to website.