《2025年新课程新教材导航学八年级英语上册外研版》

B
The mobile phone is a great invention. It makes our lives more convenient. Now most people have a mobile phone. Do you have a mobile phone? Do you send text messages to your friends and family with your mobile phone?
Text messaging or “texting” is becoming very popular. However,scientists have discovered that texting can give us problems with our hands. Be careful! Too much texting can cause swelling (肿胀) in our thumbs and wrists (手腕). Our thumbs are not made for pushing small buttons,over and over. Scientists call this problem RSI.
We spoke to a doctor called Harriet Wilson,who had treated many patients with RSI. She said we needed to see how much time we were spending in typing text messages. If we are spending more than 10—15 minutes once,we could have problems in the future.
We also talked with Dr Harjeet Deepa who treats RSI patients. He told us that the youngest patient she had treated was a five - year - old girl. She wasn’t doing well at school,so her parents took her for treatment. It was found that she had such bad RSI in her hands. She couldn’t hold a pencil.
As mobile phones develop,they are getting smaller with buttons closer together. Texting with a smaller phone is worse than using a larger phone with bigger buttons. Using a computer keyboard and playing video games can also cause the same problem. So more and more people could find themselves with RSI.
Many university students and teenagers have RSI,as they do not know the danger of spending so much time on computers,video games and mobile phones. If we don’t do something about this,too many young people could grow up in terrible pain.
5. Why might students be at high risk for RSI?
A. Because they use small phones.
B. Because they ignore time limits.
C. Because they text too fast.
D. Because they play sports.
6. What does the underlined word “once” mean in the third paragraph?
A. Right away.
B. Finally.
C. At a time.
D. At least.
7. Why COULDN’T the five - year - old little girl hold a pencil?
A. Because she didn’t go to school.
B. Because she suffered a lot from RSI.
C. Because she had no thumbs at all.
D. Because she was too young.
8. What’s the passage mainly about?
A. The hidden health dangers of texting.
B. How phones improved communication.
C. Doctors’ new discoveries.
D. Children’s technology use.

答案： 5.B 6.C 7.B 8.A