Question

A strong wind can be a dangerous thing— sometimes it is powerful enough to knock you off your feet．But to plants,the wind is a source of new life,carrying them or their spores （孢子）thousands of miles． 　　A NASA satellite called Quik SCAT has discovered highways of wind over the Earth's oceans．Scientists believe these invisible roads may explain why many nonflowering plants,such as mosses（苔）and lichen（地衣）,grow where they do． 　　The satellite is able to send microwaves（微波）from space to the surface of the ocean．The pattern of signals that come back shows which way the winds are blowing． 　　Using this data,the scientists studied a group of islands in the southern hemisphere（半球）,nearAntarctica．Winds tend to blow anticlockwise（逆时针）in this region,but there are lots of local differences． 　　When the researchers compared these local patterns to botanical（植物学的，植物的）data,they found that the wind had an important effect on where species of mosses,lichen,and other nonflowering plants grow． 　　For example,Bouvet Island and Heard Island,share 30 percent of their moss species,29 percent of liverworts（叶苔）,and 32 percent of lichen— even though they are 4,430 kilometers apart．In contrast,Gough Island and Bouvet Island,separated by just 1,860 kilometres of sea,share only 16 percent of mosses and 17 percent of liverworts．They have no Lichen in common． 　　Ferns（蕨类植物）and flowering plants don't ravel as well in the wind,so they don't show the same kinds of distribution（分布）patterns． (1) This story is about ________ [　　] A． the discovery of wind highways B． how wind travels C． how wind affects different plants D． one function of the wind (2) The underlined word“data”in the fourth paragraph means ________ [　　] A． signal B． pattern C． information D． research (3) Which of the following is wrong? [　　] A． Bouvet Island,Heard Island and Gough Island are all in the southern hemisphere． B． Winds in the researched area blow anticlockwise． C． The scientists shouldn't base this research on how winds affect the places where ferns grow． D． Without the discovery of Quik SCAT,the research wouldn't have made sense． (4) Which of the following diagrams shows the correct position of the islandos? [　　] A． B． C． D．

Answer 1

答案：1．D;2．C;3．B;4．D;
解析：

(1)	主旨题。从全文来分析，本文讲述的是“海风的一种功能”，即“许多不开花的植物通过海风把它们的子女移往远方”。
(2)	词义猜测题。根据上下文可知，data指的是卫星发回的“信息”。
(3)	判断题。根据文中“Winds tend to blow anticlockwise in this region,but there are lots of local differences．”一句可判断B项是错误的。
(4)	图形题。根据短文倒数第二段的文字表述及风向可知：A图与C图中，三个岛的距离与原文内容不符。B图中三者在距离上与短文相符，由于风向是逆时针的，而Gough岛在Bouvet岛的左方，即在风前进的方向上，植物种子就能从Bouvct岛飞到Gough岛，从而形成这两地有更多的相同植物种类，这与短文内容不符。D图中三者在距离上与短文相符，由于风向是逆时针，尽管Bouvet岛与Heard岛相距较远，但Heard岛在Bouvet岛的左方，即在风前进的方向上，植物种子还是能从Bouvet岛飞入Heard岛。而Gough岛是在Bouvet岛的右下方，即背离了风前进的方向，尽管Bouvet岛与Gough岛相距较近，两地相同的植物种类却不多，这与短文内容相符。可判断出图形D是正确的。