题型：选词填空（单句） 题类：常考题 难易度：普通
牛津上海（本地版）五四制七年级上册Module 3 Unit 8 Growing healthy, growing strong同步练习4
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A. repair B. clearer C. such as D. cleaner E. at least |
Do more activities puzzles, word games and learn a new language. These activities will help you improve your memory.
Try to have more free time. When you are tired, you will find ways to get rid of stress, so your brain will be and ready to have new ideas.
You need seven hours of sleep every day. Give your brain cells much time to the damage done by a day's tiring work. Eat lots of fruit, vegetables and grain. Do your best to be healthy, and these foods help you to improve your memory.
four winner as long as ring honest |
A. take off B. mean C. how D. against E. safely |
Although we still don't know whether using mobile phones can cause cancer, we should try to use our phones {#blank#}1{#/blank#}.Here are some tips:
*Use a headset（耳机） or speaker.
Headsets give out much less radiation than phones.Some wireless headsets give out low-level radiation. However, you should {#blank#}2{#/blank#} your headset when you're not talking to anyone.Using a phone with a speaker will also make it safer.
*Listen more, talk less. Your phone gives out radiation when you talk or text, but not when you're listening or getting messages.
*Hold the phone away from your body when you are talking, not {#blank#}3{#/blank#} your ear. Also, don't keep it in your pocket.
*Choosing texting over talking. 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（信号数） on your phone {#blank#}4{#/blank#} that the phone needs to give out more radiation to work. Make and take calls [when your phone has a strong signal.
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