题目内容

13.Sitting too long before the computer is harmfulto people's health.

分析 在电脑前坐得太久对人们的健康有害.

解答 答案是harmful.本题考查语境中选用恰当的词或短语;harmful adj.有害的;be harmful to 对…有害的;故答案是harmful.

点评 首字母填空必须在对语境整体理解的基础上抓住指向答案的关键线索、固定句型或搭配等,并联系首字母,同时注意所选词的形式变化.

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3.How to Care for Your Ears?Ears not only let us hear,but they also play a role in maintaining our balance,which is vital to our ability to function in daily life.Yet,we ignore them.We can't even see our ears,except in a mirror.We take it for granted what they do for us day in and day out-until we notice something wrong,such as when an earache strikes or when we start having to ask people to repeat what they say.(31)D
◆Clean your ear with a washcloth-covered finger only.
Never put anything inside your ear canal,including cotton swabs(药签).(32)F
◆Leave earwax(耳垢)alone.
Wax is your ear's way of eliminating(消除)anything foreign that gets into the ear canal.(33)EIf you find you have too much earwax,use a few drops of earwax remover in the canal.After a few minutes,wash the ear with warm water.
◆Avoid noisy places.
Rock concerts and construction sites are just a few places that frequently have noise levels that can damage hearing.Any place where you have to shout to be heard should be avoided.
◆(34)A
Be careful not to play MP3too loud,especially if using earphone.
◆Be careful with illness and medications.
Respiratory(呼吸的)illnesses should be treated to avoid their spread to the ears.Certain medications can damage hearing,so follow the directions carefully before taking them.
See your doctor if you suffer from sudden hearing loss or hear noises in your head.(35)C

A.Turn the volume(音量)down.
B.Avoid using earphones while listening to MP3.
C.In such case,go to see a doctor as soon as possible.
D.This article will show you how to care for your ears.
E.Most people don't need to clean wax out of their ears.
F.Your ear canal is very narrow.and a swab can damage it.
G.These can be symptoms of a serious illness which needs to be treated.
1.Electrical Fire Safety TipsOn any given day,it's likely that most people use several different electrical devices(装置).With electric devices being so common in modern homes,it's easy to forget that there are very real risks and angers associated with their use.Take the time to go over the rules of safe operation and make sure that everyone in your home is aware of them in order to prevent unnecessary exposure to harms and safety risks.
When an electrical short or spark does happen,it is very important to understand what to do to prevent or put out an electrical fire to keep the damage from spreading.You should,of course,call 911or other appropriate emergency services immediately in case of electrical injury or fire.The United States Fire Administration (USFA) of the Federal Emergency Management Agency (FEMA) offers a number of tips for preventing electrical fires.
◎Do not allow children to play close to small or large electrical devices.
◎Replace any tools that send out even slight electric shocks.
◎Replace any light switches that have a tendency to flash.
◎Replace any light switches that are hot to the touch.
◎Avoid overloading extension cords,sockets and plugs.
◎Do not force a three-prong plug into a two-receptacle socket.
◎Know where fuse(保险丝)boxes and circuit(电路)breakers are located as well as how to properly operate them.
◎Never attempt electrical repairs or rewiring'without proper Certification and experience.
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21.Why is it easy to ignore the dangers of electricity?B
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Jealousy is an imperfect blend of sadness,anger,disgust,and resentment.It has destroyed many perfect relationships and caused huge emotional distress to the jealous person as well as his family or friends.Extreme cases of jealousy have even been a cause for murders and suicides.Jealousy is one of the most common human emotions and is experienced by either gender.It is not culture specific and shows its presence from the age of 6months onward.
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