Cellphones help us easily find people anywhere at any time．However，using cellphones too often may cause cancer．It's reported that people who used a cellphone for 10years or more were more likely to get brain cancer．
The suggestions below may help you reduce the risk （风险） of cancer：
◆When using your cellphone，try to keep it away from your body as much as possible．Don't put it under your pillow （枕头）or on a bedside table when you go to sleep．
◆When you're on the cellphone，use the speaker．In this way，you have just 1/100th of the contact（接触） with radiation you have when you hold it to your ear．An earphone is also a good idea．
◆Try to keep your conversations short．If you need to talk longer，use an ordinary phone instead．
◆Change ears when you're using your cellphone．Before putting it to your ear，wait until the person you are calling picks up the phone．
◆Your phone gives out radiation when you talk or text （发短信），but not when you're listening or getting messages．Listening more and talking less can lower the risk of cancer．
◆Do not use your cellphone when the signal （信号）is weak or when moving at a high speed，for example in a car or train．At high speeds your phone is trying to pick up signals，and this increases the radiation it gives out．
任务型阅读：根据短文内容，填写下列表格．
| ☆Try to （81）___ your cellphone away from your body，both when using it and sleeping．
☆Using the speaker or an （82）___ is a good way to reduce the radiation． ☆Avoid using a cellphone to make （83）___ conversations． ☆Don't press the cellphone to your ear until the person you are calling （84）___ the&nb 李雪静回答：
81．keep 细节理解题．根据When using your cellphone，try to keep it away from your body as much as possible．Don't...
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