C U 天（空） the upper air; the space above the Earth where clouds and the sun, moon and stars appear

　ascend to the ～　升上天
　darken the ～　使天空黑暗
　fly up to the ～　飞上天空
　hide the ～　遮住天空
　look up at the ～　仰望天空
　read the ～　看天色
　shade the ～　遮天蔽日
　touch the ～　高耸入云
　blue ～　蓝天
　bright ～　明亮的天空
　bright blue ～　蔚蓝的天空
　clear ～　晴朗的天空
　cloudless ～　晴朗的天空，无云的天空
　cloudy ～s　多云的天空
　distant ～　远处的天空
　dull ～　暗淡的天空
　frightening ～　令人恐惧的天空
　gray ～　阴沉的天空
　heavy ～　阴天
　sunny ～s　阳光灿烂的天空
　water-clear ～　水一般清澈的天空
　watery ～　像要下雨的天空
　night ～　夜空
　sunrise ～　日出时的天空
　sunset ～　日落时的天空
　beneath a ～　在蓝天下
　drop from the ～　从天而降
　in the ～　在天空里
　stars in the ～　天上的群星
　under a foreign ～　在异乡
　under the open ～　在户外
　～ of cloudless blue　万里无云的蓝天
　～ without clouds　无云的天空

　What colour is the sky?　天空是什么颜色?
　The sky turned dark as the storm came near.　随着风暴的来临，天空变得黑沉沉的。
　The sky looks as if it would clear off soon.　天空看来马上就会放晴了。
　The sky is quite blue and cloudless.　蔚蓝的天空晴朗无云。
　The sea and the sky seemed to blend into each other.　大海和蓝天似乎连成了一片。
　A thin column of smoke climbed into the sky.　一缕轻烟徐徐升入空中。
　A field of burning grass billowed thick black clouds of smoke into the sky.　一块燃烧着的草地冒起黑色浓烟，滚滚升上天际。
　The searchlight sent its beam into the night sky.　探照灯的灯光射入夜空。
　The mountain reaches to the skies.　那座山耸入云端。
　Air safety is the concern of all who travel the skies.　空中的安全是所有乘飞机的人所关心的。
　What a sky!　多美的天空啊！
　A red sky in the morning is said to be a sign of bad weather.　早晨天上呈红色据说是坏天气的预兆。
　There is a bit of blue sky between the clouds.　云彩之间有一抹蓝天。
　Pink clouds floated in a pale sky.　淡淡的天空飘着彩云。
　The bird is flying in a clear, blue sky.　这鸟在晴朗蔚蓝的天空中飞翔。
　Sunset dyed the red sky.　落日染红了天空。
　The white peak contrasts finely with the blue sky.　白色的山峰和蓝色的天空映衬得很美丽。
　I glanced out of the window at the blue sky.　我看了一下窗外的蓝天。
　Large white clouds sailed across the clear blue sky.　大片大片的白云悠然飘过蔚蓝的晴空。
　They work under the open sky.　他们在露天干活。
　The papers forecast clear skies tomorrow.　报纸预报明天晴天。
　We expect sunny skies for the next two days.　我们盼望明后两天天气晴朗。
　Warmer skies would do wonder to your health.　较暖的天气会大大有助于你的健康。
　In Britain the skies are often cloudy.　在英国常常阴天。
　English skies are temperate in spring.　英国春天的气候是温暖的。
　What about a month's leave under our temperate Kunming skies?　你在我们这不冷不热的昆明休一个月的假好不好?
　The roof had holes that let the sky in.　屋顶上有洞，可以看到天空。
　His grandfather was raised to the skies last year.　他的祖父去年死了。

 ♣ in the sky
　在天空　in the heavens
　It is impossible to count the stars in the sky.　天空中的星星数不清。
　The storm was over, there were stars in the sky.　暴雨过后，天上出现了星星。
　The moon was low in the sky.　月亮低挂在天边。
　The moon is the brightest object in the night sky.　月亮是夜空上最明亮的物体。
　The hawk was circling high in the sky.　鹰在天空中高高地盘旋。
　The plane still drummed in the sky.　飞机依然在天空中轰鸣。
 ♣ out of a clear sky
　突如其来地　arise suddenly; come all of a sudden; appear out of nowhere
　His visit came out of a clear sky.　他的来访实在出人意料。
　The cowboy thought he was alone but suddenly out of a clear sky there were Indians all around him.　牛仔认为只有他一个人，但是突然四周围满了印第安人。
 ♣ the sky is the limit
　〈非正〉毫无限制　 there is no upper limit
　Order what you want. The sky is the limit.　你想要什么，就点什么，毫不限制。
 ♣ to the skies
　非常　extraordinary; unusual; special
　He praises them up to the skies.　他极力褒扬他们。
　Alexandra's former employer praised her to the skies.　亚历山德拉的原上司对她大加赞扬。
　All the girls praised the new dances to the skies.　所有的姑娘都把新的舞蹈捧上了天。

 ♣ in the sky, in the air
　参见air条。
 ♣ sky, heaven, space, universe
　参见heaven条。

1. 天要下雨了。
　［误］ The sky will rain soon.
　［正］ It will rain soon.
　［析］ 表达天气情况一般用it作主语，不用the sky作主语。
2. 看看较暖和的气候是否对你的身体有一点帮助。
　［误］ See if warmer sky can help you a little.
　［正］ See if warmer skies can help you a little.
　［析］ sky作“天气”解时，一般用复数形式。
3. 大片的白云飘浮在晴朗的蓝天上。
　［误］ Large white clouds sailed across clear blue sky.
　［正］ Large white clouds sailed across the clear blue sky.
　［析］ 当sky前有两个或两个以上的描述性定语修饰时，须用定冠词the.

　［词源］　古挪威语sky（云）