IF you lived by the sea, you’d know that typhoons are frequent（频繁的）visitors during summer .They bring Strong winds, heavy rain and flooding（洪水）But most of the time, when people stay indoors, they’re just all right.
This is what the people in the Philippines used to believe – until they met the “super typhoon”, Haiyan.
The typhoon hit the country on Nov 8, at around 5 am, when most people were still asleep. But being at home didn’t keep them safe, since few buildings remained standing once they were hit by wind as violent as 376 kilometers per hour, according to NBC News.
“This is at the top end of any tropical system that we’ve seen on our planet,” said Bryan Norcross, a weather scientist working for NBC. And so far, Haiyan has caused more than 3,600 deaths and left millions of people homeless.
.But where did Haiyan get its destructive power?
According to Brian McNoldy, a tropical weather expert at the University of Miami, US, Haiyan was so strong because “it had everything working for it”
“All typhoons feed off the warm ocean waters,” Colin Price, a weather researcher at Tel Aviv University in Israel, told National Geographic. Tropical storms are like giant engines（发动机），powered by the heat transferred（传导）from the ocean waters to the air above. However, because of climate change, the oceans have been warming up in recent decades. “Warmer oceans will result in more intense（强烈的）storms，” Price said.
Also, Haiyan started near the equator（赤道），where it was able to pick up more heat before heading to the Philippines. Moreover, the route（路线）it traveled was mostly along open ocean, which means no land prevented it from gathering steam（水蒸气）．
In addition, there happened to be very little “wind shear（风切变）in the area this time. Wind shear is a sudden change in wind speed or direction, which can tear apart developing storms. This is like when you stir（搅动） a glass of water with a chopstick: a swirl（漩涡）will form, ‘but if you move the chopstick in the opposite direction, the swirl will quickly disappear.”
“When all those things align in a certain way, you’re going to get something like‘Haiyan’.”Jim Kossin, a scientist with the US National Oceanic and Atmospheric Administration, told National Geographic.
【小题1】Which of the following is TRUE about typhoons according to the article?A．They mostly happen early in the morning.B．They mostly do damage during winter.C．During most typhoons people can keep safe just by staying at home.D．This year, more intense storms have happened in the world,【小题2】Which of the following made Haiyan so powerful?
a, lts starting point was the equator
b, The frequency of other intense storms
c. More heat was transferred from the ocean waters to the air above,
d. There was a strong wind shear in the area
e. There was no land in its wayA．abcB．acdC．aceD． ade【小题3】The underlined word “alignin” the last paragraph is closest in meaning to A．disappearB．affect each otherC．Arrive at the topD．Happen at the same time【小题4】The article mainly talks about A．how destructive Haiyan wasB．Why Haiyan was so destructiveC．how typhoons like Haiyan form（形成）D．ways to protect yourself when typhoons hitC
网友回答
(答案→)C
解析：本文介绍了“超级台风”海燕给菲律宾人带来的灾难：3600人死亡，上百万人无家可归。海燕的危害如此巨大的原因有三：1海燕在赤道附近开始聚集更多的热量前往菲律宾。2.它移动的路线主要是沿海，没有土地阻止它收集水蒸气。3. 碰巧那里很少有风切变。
【小题1】推理判断题。文章第一段的意思是在夏季的海边台风频繁，台风带来暴风雨，但大多数情况下，菲律宾人相信，只要呆在家里就没事。由此可知，选C。
【小题2】细节理解题。在介绍海燕的强大破坏力的原因时提到许多因素使然：1海燕在赤道附近开始聚集更多的热量前往菲律宾。2.它移动的路线主要是沿海，没有土地阻止它收集水蒸气。3. 碰巧那里很少有风切变。故选C。
【小题3】词意猜测题。根据上文介绍和本句话的意思（当所有这些事情以某种方式聚齐时，你就会有像海燕那样的强台风。）可知alignin的意思是这些因素碰在一起，与D一致。
【小题4】主旨大意题。阅读全文尤其是开头可知，文章主要报道了台风“海燕”强大破坏力的原因，与B一致。