四、阅读短文,从方框中选出能填入文中空白处的最佳选项,选项中有两项为多余选项
Many icebergs look white because they are covered with white snow. Some young icebergs look white because there are a lot of small bubbles in the ice.
Apart from white, blue and green, there are also icebergs in yellow, black and other colours.
A. What colour are icebergs?
B. Who found the icebergs in Antarctica?
C. But why do some icebergs look green?
D. That’s why many icebergs appear to be blue.
E. The bubbles reflect lights in different colours.
F. So we should stay away from icebergs when shipping.
G. Many mysteries about them are waiting for us to solve.
36.
37.
38.
39.
40.
A
36 You may answer white or blue. Surprisingly, there are green icebergs (冰山) in Antarctica.Many icebergs look white because they are covered with white snow. Some young icebergs look white because there are a lot of small bubbles in the ice.
E
37 All these lights mix together and turn white in people’s eyes. When the ice in icebergs becomes compact (坚实的) over the years, it can only reflect blue light. D
38C
39 Scientists studied their unusual colour for years. But now we know the answer—the iron oxide (铁氧化物) from rock dust (岩粉). The glacial ice with iron oxide in it drops from the Antarctic ice sheets (冰盖), mixes with ocean water and then freezes into green icebergs.Apart from white, blue and green, there are also icebergs in yellow, black and other colours.
G
40 From them, we can know more about the planet.A. What colour are icebergs?
B. Who found the icebergs in Antarctica?
C. But why do some icebergs look green?
D. That’s why many icebergs appear to be blue.
E. The bubbles reflect lights in different colours.
F. So we should stay away from icebergs when shipping.
G. Many mysteries about them are waiting for us to solve.
36.
A
37.
E
38.
D
39.
C
40.
G
答案：36.A 37.E 38.D 39.C 40.G
解析：
【分析】
本题为英语七选五题型，需结合上下文语境与逻辑关系匹配选项。解题思路：先通读全文把握主旨（介绍冰山的颜色及成因），再逐个分析空格前后内容：36空后围绕冰山颜色展开，对应提问颜色的选项；37空前提到气泡，后文涉及光的混合，对应气泡与光的选项；38空前讲冰山反射蓝光，对应说明呈蓝色原因的选项；39空后讲绿色冰山的成因研究，对应提问绿色冰山原因的选项；40空后说能从冰山了解星球，对应冰山有谜团待解决的选项。
【解析】
36空：后文提到“你可能回答白色或蓝色，还有绿色冰山”，说明此处是询问冰山的颜色，对应选项A，故36选A。
37空：前文提到冰山有很多小气泡，后文说“所有这些光混合成白色”，说明空格需说明气泡与光的关系，对应选项E，故37选E。
38空：前文提到“冰只能反射蓝光”，这是冰山呈蓝色的原因，对应选项D，故38选D。
39空：后文讲述科学家研究绿色冰山的颜色成因，说明空格是提问为何有些冰山呈绿色，对应选项C，故39选C。
40空：后文说“从它们能了解更多关于星球的信息”，说明空格是说关于冰山还有很多谜团待解决，对应选项G，故40选G。
【答案】
36.A 37.E 38.D 39.C 40.G
【知识点】
英语阅读理解（七选五）
【点评】
本题考查学生对英语文章上下文逻辑关系的理解能力，需结合语境匹配对应选项，是初中英语常见题型，难度适中。
【难度系数】
0.6
本题为英语七选五题型，需结合上下文语境与逻辑关系匹配选项。解题思路：先通读全文把握主旨（介绍冰山的颜色及成因），再逐个分析空格前后内容：36空后围绕冰山颜色展开，对应提问颜色的选项；37空前提到气泡，后文涉及光的混合，对应气泡与光的选项；38空前讲冰山反射蓝光，对应说明呈蓝色原因的选项；39空后讲绿色冰山的成因研究，对应提问绿色冰山原因的选项；40空后说能从冰山了解星球，对应冰山有谜团待解决的选项。
【解析】
36空：后文提到“你可能回答白色或蓝色，还有绿色冰山”，说明此处是询问冰山的颜色，对应选项A，故36选A。
37空：前文提到冰山有很多小气泡，后文说“所有这些光混合成白色”，说明空格需说明气泡与光的关系，对应选项E，故37选E。
38空：前文提到“冰只能反射蓝光”，这是冰山呈蓝色的原因，对应选项D，故38选D。
39空：后文讲述科学家研究绿色冰山的颜色成因，说明空格是提问为何有些冰山呈绿色，对应选项C，故39选C。
40空：后文说“从它们能了解更多关于星球的信息”，说明空格是说关于冰山还有很多谜团待解决，对应选项G，故40选G。
【答案】
36.A 37.E 38.D 39.C 40.G
【知识点】
英语阅读理解（七选五）
【点评】
本题考查学生对英语文章上下文逻辑关系的理解能力，需结合语境匹配对应选项，是初中英语常见题型，难度适中。
【难度系数】
0.6