题型：任务型阅读 题类： 难易度：普通
浙江省义乌丹溪中学2024-2025学年九年级上学期10月独立作业检测英语试卷
How to use mobile phones safely?
Although we still don't know whether using mobile phones can cause cancer, we should try to use our phones safely. Here are some tips:
Headsets(耳机) give out much less radiation(辐射)than phones. Some wireless headsets give out low-level radiation. However, you should take it off your ear when you're not talking to anyone. Using a phone with a speaker will also make it safer.
Your phone gives out radiation when you talk or text, but not when you're just listening or getting messages. So try to listen rather than talk.
Keep the phone away from your body when you're talking, not against your ear. Also, don't keep it in your pocket. Because cell phones give off radiation, which can be harmful if you use it for long time.
Phones give out less radiation when sending texts than when making calls. Texting also keeps radiation away from your head.
Poor signal? Stay off the phone.
Fewer signal bars(信号格数)on your phone mean that the phone needs to give out more radiation to work. Make and take calls when your phone has a strong signal.
A. Keep off mobile phones. B. B. Use a headset or speaker. C. Choose texting instead of talking. D. D. Hold the phone away from your body. E. E. Listen more, talk less. |
As students, can we use mobile phones at school? Why? (回答不超过25个单词)
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