题目内容
15.In the second half of each year,many powerful storms are born in the tropical Atlantic and Caribbean Sea.Of these,only about half a dozen produce the strong,rotating winds of 75 miles per hour or more that give them hurricane status (身份),and several usually make their way to the coast.There they cause millions of dollars of damage,and bring death to large numbers of people.The great storms that hit the coast start as innocent rotating disturbances (扰乱) hundreds or thousands of miles out to sea.As they travel aimlessly over water warmed by the summer sun,they are carried westward by the trade winds (信风).When conditions are just right,warm,moist (潮湿的) air flows in at the bottom of such a disturbance,moves upward through it and comes out at the top.In the process,the moisture in this warm air produces rain,and with it the heat is changed into energy in the form of strong winds.As the heat increases,the young hurricane begins to swirl (旋动) in a counter-clockwise (逆时针方向) motion.
The average life of a hurricane is only about nine days,but it contains almost more power than we can imagine.The energy in the heat released (释放) by a hurricane's rainfall in a single day would satisfy the entire electrical needs of the United States for more than six months.Water,rather than wind is the main source of death and destruction in a hurricane.A typical hurricane brings 6 to 12-inch downpours resulting in sudden floods.Worst of all is the powerful movement of the sea-the mountains of water moving toward the low pressure hurricane center.The water level rises as much as 15feet above normal as it moves toward shore.
33.When does an ordinary tropical storm turn into a hurricane?D
A.When it begins in the Atlantic and Caribbean Sea.
B.When it hits the coastline.
C.When it travels aimlessly over water.
D.When its wind reaches a speed of 75 miles per hour.
34.What is the worst thing about the hurricane?A
A.The destructive effect of water.
B.The heat it releases.
C.It lasts about nine days.
D.Strong winds.
35.The counter-clockwise swirling of the hurricane is brought about byD.
A.the low pressure center of the storm
B.the force of waves of water
C.the trade winds
D.the increasing heat.
分析 文章主要讲述了飓风的形成过程---是达到每小时75英里以上的热带风暴形成的,以及飓风对大自然和人类带来的巨大的危害.
解答 33.D 细节理解题.根据第一段第二行becomes the strong,circling windsof 75 miles per hour or more that are called hurricanes.可知当一个热带风暴达到每小时75英里以上的时候,就被称为是飓风了,故选D.
34.A 细节理解题.根据最后一段第三行Water,not wind,is the mainsource of death and destruction(毁灭) in ahurricane.可知飓风最致命的是水的灾难性的影响.故选A.
35.D 细节理解题.根据第二段的句子:As the heat increases,the younghurricane begins to swirl in a counter-clockwise (逆时针方向) motion.可知飓风的逆时针漩涡是由增加的热量造成的,故选D.
点评 本文是新闻报道类阅读,主要考查细节理解题.做题时,首先看题目要求我们理解什么细节,找出关键词,运用寻读的技巧迅速在文章里找出相应的段落、句子或短语.认真比较选项和文中细节,在正确理解细节的前提下,确定最佳答案.
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