Question

7．These days，many of us use computers both at work and at home．We use them to do a number of different things，from typing documents to surfing the Internet and listening to music．However，it is important to remember that using a computer for long hours can cause harm to our bodies．Here are some tips to help keep you healthy when using a computer．
Take care of your back
Make sure your chair is the right height and size for you and the desk you use．Your desk should be at about the same level as your elbows when you are sitting down．Chairs with armrests are good because they allow you to rest your arms．Do not lean forward over the keyboard towards the screen because this is bad for your back．Sit upright，with your feet touching the ground and your back resting on the back of the chair．Doing these things will help you prevent back-related problems such as pain in your neck，shoulders and arms．
Take care of your wrists and hands
Using a keyboard and a mouse can put pressure on your wrists and hands if it is not done properly．When you type，try to make sure your fingers are relaxed．You should hit the keys softly and hold the mouse gently．Mouse mats that come with soft material to support your wrist are really good too．Pain in the hands and wrists is very common among people who use computers a lot，so make sure you use your mouse and keyboard in the right way．
Take care of your eyes
Your eyes are very important and it is necessary to take care of them．You should give them regular breaks from staring at the computer screen．Every fifteen minutes，rest your eye muscles by looking away from the screen at something far away．Make sure that the top of your monitor is at eye level and that your monitor is about an arm's length away from you．
Take a break
It is important that you do not sit at a computer for too long．No matter how busy you are，try to take regular breaks from your desk．Stand up，go for a short walk or even do some stretching exercises．You should take a short break at least once an hour，and you should try to do some stretching exercises every two hours．By following all these tips，you will not feel so tired after using your computer for a long time．
Title：Using computers and staying（71）healthy 

Topic	（73）tips
It is important to keep these things in mind because using a computer for long hours can be（72）harmfulto our bodies．	Take care of your back	Choose a（74）suitablechair for you and your desk． Do not lean forward over the keyboard towards the screen． Sit upright（75）with，your feet on the ground and rest your back on the back of the chair．
	Take care of your wrists and hands	（76）Makeyour fingers relaxed when typing． Hit the keyboard softly and hold the mouse gently． Use mouse mats （77）withsoft material to support your wrist．
	Take care of your eyes	Make sure that the top of your monitor is at eye level and that your monitor is about an arm's length away from you． Give your eyes regular breaks every（78）fifteen minutes．
	Take a break	Take a short break at least（79）once an hour． Try to do some stretching（80）exercises every two hours．

Answer 1

分析 短文主要讲了对电脑的正常使用，介绍了当使用电脑时保持健康的几种建议．

解答 71．答案：healthy，根据句子Here are some tips to help keep you healthy when using a computer可知短文主要是讲如何健康地使用电脑，因此stay后接形容词healthy"健康的"．
72．答案：harmful，根据句子However，it is important to remember that using a computer for long hours can cause harm to our bodies可知使用电脑太久对我们的身体是有害的，cause harm to=be harmful to"对…有害"，故答案为harmful．
73．答案：tips，根据表格下面都是对如何健康使用电脑的建议，故使用名词tips．
74．答案：suitable，根据句子Make sure your chair is the right height and size for you and the desk you use可知要选择合适的椅子，因此使用形容词suitable．
75．答案：with，根据句子Sit upright，with your feet touching the ground and your back resting on the back of the chair．可知"坐直，脚碰到地面，背能靠在椅子后背"，故答案为with．
76．答案：Make，根据句子When you type，try to make sure your fingers are relaxed可知打字时要让手指放松，根据下面两个句子也是祈使句，因此使用动词原形Make．
77．答案：with，根据句子Mouse mats that come with soft material to support your wrist are really good too可知由柔软材料的鼠标来支撑手腕是好的，因此表示"带有"用介词with，故答案为with．
78．答案：fifteen，根据句子Every fifteen minutes，rest your eye muscles by looking away from the screen at something far away可知每隔十五分钟眼睛就要休息．
79．答案：once，根据句子You should take a short break at least once an hour可知答案为once．
80．答案：exercises，根据句子and you should try to do some stretching exercises every two hours可知答案为exercises．

点评 解答任务型阅读理解题，首先对原文材料迅速浏览，掌握全文的主旨大意．因为阅读理解题一般没有标题，所以，速读全文，抓住中心主旨很有必要，在速读的过程中，应尽可能多地捕获信息材料．其次，细读题材，各个击破．掌握全文的大意之后，细细阅读每篇材料后的问题，弄清每题要求后，带着问题，再回到原文中去寻找、捕获有关信息．最后，要善于抓住每段的主题句，阅读时，要有较强的针对性．对于捕获到的信息，要做认真分析，仔细推敲，理解透彻，只有这样，针对题目要求，才能做到稳、准．