Do you like watching TV or playing games? How many hours do you use your phone a day? We call the time we spend on TV, computers and phones “screen (屏幕) time”.
In a study (研究), scientists (科学家) ask 577, 000 children how much time they spend on screens, schoolwork and sports every day. They find about 68% of them spend more than 2 hours on screens.
Two hours of screen time a day is bad for children’s health. The study shows harm (伤害) starts after 75 minutes of screen time for girls and 105 minutes for boys. Why is that? “Just because ▲ . In our study, 24% of boys spend an hour a day doing sports, but only 14% of girls do that,” Dr. Khan says.
So it is important for students to do sports and balance (平衡) their screen time. Tom has a “three-time system(系统) for his son Patrick—a “go time” for schoolwork, a “slow time” to play games or talk with friends on the Internet and a “green time” for sports. “We need to get children out and move. They can walk, ride a bike and play football,” he says.
【小题1】From the passage, we know 68% of the 577, 000 children spend ___________ on screens.A.more than 2 hours | B.an hour | C.75 minutes | D.105 minutes |
A.girls can do sports well | B.boys do not like sports |
C.boys take more exercise | D.girls do more schoolwork |
A.actors | B.students | C.doctors | D.workers |
A.girls shouldn’t spend time on screens |
B.two hours of screen time is good for boys |
C.it is important for students to do their schoolwork |
D.children should do sports to balance their screen time |
Doing exercise is very important for everyone. But it can be a little difficult to keep an exercise plan when winter comes.
To stay active during the winter, you should first make it as easy as possible to do your exercise.
Walk in doors.
短文还原 根据短文内容,从下面选项中选出能填入文中空缺处的最佳选项,使短文完整。
A.Take a shower. |
B.Walking is a good way to stay healthy. |
C.Put your shorts clothes in the dryer. |
D.The cold weather makes you want to stay in your warm bed. |
E.Second, make something different before you lose interest in doing exercise. |
Sports change with the seasons. People play different games in different seasons. They will swim in summer and skate in winter. In autumn, they enjoy playing volleyball and tennis. They love going on a trip in spring. Doing sports is good for people’s health. Swimming is suitable for the hot weather(天气)but skating is great for the cold weather. Swimming in some places is popular. People living near the sea or lakes or rivers often swim in summer. Many American families do some sports at the weekend. They are happy and healthy.
【小题1】Why do many people like to do sports every day?
A.Because they can make friends. |
B.Because they can play with other people. |
C.Because they can keep healthy. |
D.Because they want to see Yao Ming. |
A.He plays football well. |
B.He watches players on TV. |
C.He does sports every day. |
D.He is a football player. |
A.Skating. | B.Swimming. |
C.Playing football. | D.Playing tennis. |
A.Winter. | B.Autumn. | C.Summer. | D.Spring. |
A.People and sports. | B.Sports and seasons. |
C.Favorite sports stars. | D.American sports. |
![](https://img.xkw.com/dksih/QBM/2020/4/30/2452615206715392/2454600747147264/STEM/4cfc5d25e5034730894aed77696a4fdb.png?resizew=109)
Practicing yoga(瑜伽)is a helpful and good way to keep fit. More and more people like it. I want to talk about it.
There are many kinds of yoga.
Harish Chaturvedi, a yoga coach(教练), teaches people water yoga for free-even the poor people can learn from him.
Do you want to learn yoga?
根据材料内容,从下面五个选项中选出能填入文中空缺处的最佳选项,使短文意思通顺、内容完整,并将其标号填写在下面题号后的横线上。
A.But practicing yoga in water can be good for your flexibility(灵活性). |
B.Many people thanked him for teaching children for free of cost. |
C.You may have heard of "hot yoga" before. |
D.More people joined him. |
E.He mainly teaches children now. |
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