英語六級閱讀專項訓練題原文

　　Conversely，when large numbers of negative ions are present，then people have a feelingof well-being. Natural conditions that produce these large amounts are near the sea，close towaterfalls or fountains，or in any place where water is sprayed，or forms a spray. This probablyaccounts for the beneficial effect of a holiday by the sea， or in the mountains with tumblingstreams or waterfalls.

　　To increase the supply of negative ions indoors，some scientists recommend the use ofionisers：small portable machines，which generate negative ions. They claim that ionisersnot only clean and refresh the air but also improve the health of people sensitive to excesspositive ions. Of course，there are the detractors，other scientists，who dismiss such claimsand are skeptical about negative/positive ion research. Therefore people can only make uptheir own minds by observing the effects on themselves，or on others，of a negative rich orpoor environment. After all it is debatable whether depending on seismic readings toanticipate earthquakes is more effective than watching the cat.

　　英語六級閱讀專項訓練題

　　1.What effect does exceeding positive ionization have on some people?

　　A.They think they are insane.

　　B.They feel rather bad-tempered and short-fussed.

　　C.They become violently sick.

　　D.They are too tired to do anything.

　　2.In accordance with the passage，static electricity can be caused by___.

　　A.using home-made electrical goods.

　　B.wearing clothes made of natural materials.

　　C.walking on artificial floor coverings.

　　D.copying TV programs on a computer.

　　3.A high negative ion count is likely to be found___.

　　A.near a pound with a water pump.

　　B.close to a slow-flowing river.

　　C.high in some barren mountains.

　　D.by a rotating water sprinkler.

　　4.What kind of machine can generate negative ions indoors?

　　A.Ionisers.

　　B.Air-conditioners.

　　C.Exhaust-fans

　　D.Vacuum pumps.

　　5.Some scientists believe that___.

　　A.watching animals to anticipate earthquakes is more effective than depending onseismography.

　　B.the unusual behavior of animals cannot be trusted.

　　C.neither watching nor using seismographs is reliable.

　　D.earthquake

　　英語六級閱讀專項訓練題答案

　　B

　　C

　　D

　　A

　　A