14．
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．
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．
| Healthy tips on cellphone use |
| ☆Try to （81）keep your cellphone away from your body，both when using it and sleeping． ☆Using the speaker or an （82）earphone is a good way to reduce the radiation． ☆Avoid using a cellphone to make （83）long conversations． ☆Don't press the cellphone to your ear until the person you are calling （84）picks up the phone． ☆Listening more and talking（85）less can lower the risk of cancer． ☆Don't use your cellphone when the signal is （86）weak or when moving at a high speed． |
In winter，when the sun hides behind the clouds，everyone feels a bit low．You may be tired and find you want to sleep all the time．What you may not know is：you are suffering from （患有） SAD（季节性抑郁症）．
After a study showed that one in every ten meals in the country may be cooked with dirty oil，the State Fool and Drug Administrations（SFDA）on Thursday issues an emergency notice（发布紧急通知）to restaurant nationwide，warning them against recycling oil．
10．New Energy in the Twenty-first Century
Energy from the wind
Wind is a kind of clean energy，and there is lots of it，But，if there's no wind，there is no wind energy．
Energy from the water
When water moves from a high place to a lower place，it can make electricity（电）without pollution．However，people have to build dams（水坝） to use this energy，and building dams is very expensive．
Energy from the earth
There is heat in the rocks under the earth．Scientists use the heat to make geothermal（地热的）energy．This kind of energy is cheap，but it is only possible in a few places in the world．
Energy from the sun
Solar panels （太阳电池板） on the roofs of houses can turn energy from the sun into electricity．Solar power is clean and plentiful（丰富的）．but when the weather is bad，It doesn't work．
New Energy in Twenty-first Century
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Energy from the wind
Wind is a kind of clean energy，and there is lots of it，But，if there's no wind，there is no wind energy．
Energy from the water
When water moves from a high place to a lower place，it can make electricity（电）without pollution．However，people have to build dams（水坝） to use this energy，and building dams is very expensive．
Energy from the earth
There is heat in the rocks under the earth．Scientists use the heat to make geothermal（地热的）energy．This kind of energy is cheap，but it is only possible in a few places in the world．
Energy from the sun
Solar panels （太阳电池板） on the roofs of houses can turn energy from the sun into electricity．Solar power is clean and plentiful（丰富的）．but when the weather is bad，It doesn't work．
New Energy in Twenty-first Century
| Advantages | Disadvantages | |
| Wind Energy | Clean．There is a lot． | It needs （57）wind． |
| Water Energy | （58）No pollution | It is expensive． |
| Geothermal Energy | （59）Cheap | only possible in a few places． |
| Solar Energy | Clean and plentiful． | It depends too much on （60）weather． |