Question

17．In old times，man considered lightning to be one of the greatest mysteries of nature．In fact，a single flash of lightning 1.6 km long has enough electricity to light one million lamps．
The American scientist，Benjamin Franklin，was the first to suggest that lightning is in fact electricity formed between the Earth and clouds high above．It happened in 1752．In the same year，he also built the first lightning rod to protect buildings from being struck by lightnin g．
Modern science has discovered that lightning is very long and powerful．A lightning between a cloud and the Earth may be as long as 13 km，and travels at a speed of 30 million meters per second．Scientists have the opinion that there are about 2 billion flashes of lightning per year．In the United States alone，it kills almost one person per day．
The safest place to be in during an electrical storm is a closed car．Outside，one should go close to low ground for cover and not stop under a tree．Also one should stay out of water and away from metal fences．Inside a house，people should keep away from open doorways and windows and not touch wires or metal things．
29．In the USA，D．
A．every person can see lightning every day
B．a(chǎn)t least one person is killed by lightning every day
C．there are about 6 million flashes of lightning per year
D．a(chǎn)bout one person per day dies from lightning
30．During a lightning storm，it would be best if youC．
A．stand under a tree                  
B．go outside
C．stay in a closed car                
D．stop near windows
31． A lightning rod canA．
A．prevent accidents caused by lightning      
B．stop lightning
C．protect building from being washed away   
D．delay the coming of lightning．

Answer 1

分析 文章介紹了閃電，以及在閃電中如何保護自己．

解答 29．D 細節(jié)理解題．由下文In the United States alone，it kills almost one person per day，幾乎每天殺死一個人，故選D．
30．C 細節(jié)理解題．文章The safest place to be in during an electrical（電的）storm is a closed car可知在緊閉的車里是最安全的，故選C．
31．A 推理判斷題，根據(jù)the first lightning rod（避雷針）to protect buildings from being struck by lightnings可知是用來保證不被雷擊，而C保護建筑物不被沖走不對，故選A阻止被雷擊事故的發(fā)生．

點評 解答任務(wù)型閱讀理解題，首先對原文材料迅速瀏覽，掌握全文的主旨大意．因為閱讀理解題一般沒有標(biāo)題，所以，速讀全文，抓住中心主旨很有必要，在速讀的過程中，應(yīng)盡可能多地捕獲信息材料．其次，細讀題材，各個擊破．掌握全文的大意之后，細細閱讀每篇材料后的問題，弄清每題要求后，帶著問題，再回到原文中去尋找、捕獲有關(guān)信息．最后，要善于抓住每段的主題句，閱讀時，要有較強的針對性．對于捕獲到的信息，要做認真分析，仔細推敲，理解透徹，只有這樣，針對題目要求，才能做到穩(wěn)、準(zhǔn)．