答案:D 解题思路:根据句意,“……今天的天空这么蓝?”可知,提问时间和地点不太合适,排除A,B。如果用why引导特殊疑问句,why后面的句子应用疑问语序,而句中“the sky is…”为主谓的语序,即是陈述语序,“how come”表示“为什么,怎么会”,后面接陈述语序的句子。所以正确答案为D。 试题难度:三颗星知识点...
选项A:Why 表示 “为什么”,通常引导一个完整的疑问句 “Why is the sky so blue today?”。选项B:How come 意为 “怎么会”,可独立使用,也可以后接句子,在本题中 “How come the sky is so blue today?” 用来询问天空如此蓝的缘由。选项C:Why not 表示 “为什么不”,其后接动词原形,如“Why n...
雪白、草绿、柠檬黄，天蓝——我们形容一种颜色，总喜欢在前面加上那种颜色的事物，形容蓝色的时候，也自然加上了“天”字。那么，天为什么是蓝的而不是绿的或是红的呢？首先，你得明白一个道理：我们周围的事物之所以显现出颜色来，仅仅是因为阳光照射着它们。虽然阳光看上去是白色的，但是所有的颜色...
Mentions the Web site, BrainPOP.com, which is a source of information for K-8 students. Description of the characters in the flash-animated films; Number of movies that can ve viewed per day, free of charge; Price of a subscription.BraikerBrianEBSCO_AspNewsweek...
The sky appears blue to us on a clear day, because the atoms of nitrogen and oxygen in the atmosphere separate the suns white light into its many colors, and scatter them throughout the atmosphere.晴天，我们看天空是蓝色的，因为大气中氮原子和氧原子将太阳的白光分解成许多种颜色，...
解析 C。解析:选项 A“Because there are many stars.”有很多星星不是天空是蓝色的原因。选项 B“Because the sun is red.”太阳是红色不是天空是蓝色的原因。选项 C“Because the air scatters blue light more.”因为空气对蓝光的散射更多,所以天空是蓝色的。
Why is the sky blue on a clear day? A. Because of the clouds. B. Because of the sun. C. Because of the way light scatters. 相关知识点: 试题来源: 解析 C。A 选项云不是天空蓝色的原因。B 选项太阳不是天空蓝色的直接原因。C 选项因为光的散射方式,使得晴朗的天空呈现蓝色。
网络释义 1. 为什么天空是蓝色的 ... Someday we'll know 有一天我们会知道Why the sky is blue为什么天空是蓝色的Someday we'll know 有一天我们会知道 ... www.hjenglish.com|基于17个网页 2. 为什么天是蓝色的 体会生活中化学的重要性 - dft7815的日志 -... ... 绿色化学( green chemistry)为什么...
Why does sky look blue at day time and black at night? During the day (daylight) the sky has a blue appearance because the Sun`s light (white light) is made up of rainbow of colors (red, orange, yellow, green, blue, indigo and violet) of different wavelength. ... The black sky ...
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