On a clear night, the moon shines brightly overhead. You might think that the moon gives off light,
but it does not. Light from the sun reflects off the moons surface. Sometimes the moon looks like a large ball steady in the sky. Other times it looks like a tiny sliver. Myths, or legends, were made up by early people to explain why the moon changes shape. The early people of Greenland thought the sun goddess was chasing her brother, the moon god, across the sky. Greenland is an island in North America. The moon god ran so much that he forgot to eat, so as days passed, he became thinner. Finally, the moon god had to stop and eat. He got bigger, and the chase began all over again. Today people understand why the shape of the moon changes. The changes in the shape of the moon are caused by the way the moon moves in space. The moon moves in two ways. It rotates, or spins around like a top. It takes the moon about twenty-nine days to rotate once. It also travels in a path around the earth called an orbit. The different shapes of the moon are called phases. This is what the phases of the moon look like:
full
waxing gibbous
half moon
waning
waxing
The phases of the moon in orderare:
full,
waning gibbous,
half moon,
crescent,
new moon,
waxing crescent,
half moon,
waxing gibbous,
and full.
gibbous
crescent
half moon
new
crescent
The moon takes about twenty-nine days to orbit around the earth. The sun always lights up half of the moon. We do not always see the lit-up half from the earth. When you see all the lit-up half of the moon, the moon appears to be a full circle. This is called the full moon. As the moon travels around the earth, we see less and less of the lit part. This is called the waning moon. Soon the lit-up part of the moon disappears from sight. This is called the new moon. Then the moon starts to look lit up again, and the lit part that you see gets bigger each day. This is called the waxing moon. It takes about twenty-nine days for all the phases. Thats the same amount of time it takes for the moon to make one
trip around the earth. Starting in the 1950s, spacecraft were sent to study the moon. The spacecraft orbited the moon. In this way, scientists learned more and more about the moon. Then, on July 20, 1969, the first spacecraft carrying astronauts from the earth actually landed on the moon! People were able to watch as a person walked on the moons surface for the first time ever.It was on television!
The astronauts sent the pictures of the moon back to the earth. The astronauts brought moon rocks back to the earth. From the rocks, scientists have learned a lot about the moon. The rocks were evidence that scientists could study to find out how the moon might have been formed. Scientists think the moon might once have been part of the earth. They think a large object from space hit the earth millions of years ago. The dust and ashes from the earth went into space and formed the moon. People have learned a lot aboutthe moon since early times!
俄顷风定云墨色,秋天漠漠向昏黑。秋,它代表着丰收,代表着热情,还代表着丰收的喜悦。
秋,丰收的开始,生命的尽头。它并非代表着生命的尽头,却依然拥有着热情与美。田野间,道路边,秋随处可见,而并不茫茫,四周都有树,平地是金色的,树也是金色的。金黄的小手掌一会儿飘在空中,一会儿又落在了平地上,无论落在哪里,都像给平地绣上了几朵金黄色的花朵,使我总想高歌一曲,表示我满心的愉快。
秋,一幅美丽的画卷,夕阳夕下,飒飒秋风,芦花飞扬,瓜果飘香,明月高悬。 秋,那朵朵小花,飘在空中,像一只只蝴蝶,落在小河里,仿佛是金色的小船。秋,那一把把小扇子,扇走了夏天的炎热,扇走了蝉鸣的歌声,扇走了绿色的毛毯。
八月秋高风怒号,卷我屋上三重芧。秋高气爽之时,偶尔狂风袭卷大地,白亮亮的雨珠跳入屋内。
金桂飘香,花好月圆。在中秋这个美好的节日里,无论是赏月、吃月饼,都寄托着人们无限的思念。海上升明月,天涯共此时。中秋那轮明月,会将我们的思念传递给我们所牵挂的人。正如苏轼所言:明月几时有?把洒问青天。
春风桃李花开日,秋雨梧桐叶落时。我爱你秋,我爱你的瓜果飘香,我爱你的秋风落叶,我爱你的绚丽多彩,我爱你
今天,告别自卑网站异常热闹,why?因为有众多知名博客云集。他们来自海内外,来自古今中外,纷纷就如何告别自卑发出了博客帖子Hi,大家好!我乃着名小提琴天才帕格尼尼。原本,上天想把我造就成一个自卑者,疾病从我一出生便纠缠住我,四岁患肺炎,六岁得喉结炎,此后一场大病又夺去了我的眼,各种病魔不断侵噬着我的肌体。但我并没就此倒下,我自信地站了起来,自信地与命运搏斗,自信地追求自己的理想。因此,希望朋友们能像我一样告别自卑!
--博客帕格尼尼
我站在风雨中,任凭风吹雨打,我不低头,我躺在大自然中,虽然不能看见大自然如诗如画的美景,不能听见鸟雀和谐之曲,甚至不能忘情的赞美道啊,美好啊!可我不自卑我要自信的享受生活,为残缺的人生抒写不残缺的乐章
--博客海伦﹒凯勒
我获得美国剑桥大学的录取通知书时,我是多么高兴啊,可随后我被无情的告知已患脊椎性侧索硬化症,好像刚怒放的鲜花被闪电折弯了腰,可我并没有自卑,我顽强的生存,不断探究黑洞。并取得了成功,同时创造了一个又一个两年半。那朵曾折断腰的花又挺立于天地间,并散发了无穷芬芳
--博客霍金
看了那么多自信着,成功者的帖子,我感触颇深,于是也尾随发了帖子
我原本也是自卑者。如一块石子,默默的躺在路边,但感谢众多博客朋友们,让我重拾了自信,远离了自卑,让我明白即使自己是一块不起眼的石子,也可以成为一块筑基石,为繁忙的交通奉献了自己的力量。李白不是曾自信的说天生我才必有用吗!我也自信长风破浪会有时,直挂云帆济沧海。因此希望所有自卑的朋友--
告别自卑
--博客重生
点评大胆的创新和别出心裁的构思是这篇文章成功的主要原因。作者采用博客发帖子的形式,先模拟帕格尼尼、海伦﹒凯勒、霍金等名人的口吻,分别讲述了自己如何告别自卑,顽强拼搏,最终成功的经历;然后,作者借重生的口吻,表达了自己决心告别自卑的心声。文章由此阐明了告别自卑的意义,使文章的观点得到鲜明的表达。在中考考场上能如此沉着大胆的构思,敢于创新,我们不能不佩服作者的勇气和写作的底蕴。综观全文,立意明确,思路清晰,层次分明,结构稳健,语言简明,叙写流畅,反映了作者较为扎实的写作功底。
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