Study is our student's personality.But many students will ask, why we must learn knowledge. Is knowledge so important to us?If we don't need to pass the exam, should we still need the knowledge?
As I am concerned, study is not only a personality of students, but also a personality of all people throughout their lives.People need to learn the knowledge whoever they are.If people don't learn knowledge, there will have no way to do things and become ignorant about world.Can you imagine a world that no people have knowledge?Leaving knowledge,the world would no get progress.If people don't learn knowledge, there will be no people to know how to use the computer ,how to write the news, even how to communicate with others.
So learning knowledge is a very important thing, it consists of our world.
你知道最大、最小的恒星分别是哪一个吗?最亮、最古老、质量最大的恒星又是哪些呢?
宇宙已经近138亿岁了,它孕育了无数颗恒星,这其中有一颗几乎和宇宙同寿的恒星,大约存在了137亿年,它就是“2MASSJ180820002—5104378”。它的`体积很小,是恒星中的红矮星,这意味着,它的生命有上万亿年!此时,它还是自己生命的婴儿时期呢!所以它是人类已知的最古老恒星。
而人类所发现最亮的恒星让人感到不可思议,它的亮度大约是太阳的870万倍!但因为离我们太远,所以你根本看不到它。它的名字是“R136a1”,是一个蓝超巨星。它好似一个大火球,正冒着耀眼的蓝色光芒。如果它代替太阳成为地球的恒星,那地球上就不会有生物了。如果它的光芒照到人类身上,那哪个人不瞎,就只能是超人了。同时,它也是质量最大的恒星,质量大约是太阳的240倍。
宇宙还“打造”出了一颗红特超巨星,它的外表是红的。可能我这么说你不明白,但换句话说,你应该就明白了,它还是最大的恒星。没错,它就是著名的“盾牌座UY”,直径足足有23。7亿千米,因此,它的内部大约可以容纳45万个太阳或2亿亿个地球。如果我们以光速前进,仍需要9个小时才能绕其一圈。但是,它的质量只有太阳的10倍左右,因为它已经是一颗“老年星”了。
最大的恒星你了解了,可最小的你知道吗?它就是“2MASSJ05233822—1403022”,距地球约40光年,直径只有木星的84%,约为120540千米。因为它太小了,所以人类也难以获取到它的更多信息。
在宇宙中有无数颗恒星,最大、最小、最亮、质量最大、最古老的恒星也只是暂时的。在科技发达的明天,我们说不定能在宇宙的某一个角落,发现更大、更小、更亮、质量更大、更古老的恒星,推翻目前的“恒星之最”!
Li Min is our monitor.She is tall, healthy and lively.She does well in all subjects.She is fond of sports and is good at singing and dancing。
Li Min works hard at English. When she came to the school, she had quite a lot of difficulties with the language. But she was not afraid of them and always tried hard to overcome them. She was active in class and did a lot of practice after class. No pains, no gains.With great efforts she made much progress in English study.
Li Min is modest and always ready to help others. She is very strict with herself in her work and daily life. She sets us all a fine example.
我们的班长 李敏是我们的班长。她很高,健康活泼。她擅长所有科目。她喜欢运动,擅长唱歌和跳舞。 李敏的英语努力工作。当她来到学校,很多困难的'语言。但她不是怕他们,总是努力克服它们。她是活跃在课堂上和课后做大量的练习。一分耕耘。以极大的努力她在英语学习中取得了很大进步。 李敏是温和的,并且随时准备帮助别人。她对自己要求很严格在她的工作和日常生活。她为我们建立了一个很好的例子。
1.她叫李敏,个子高,身体好,很活泼。她各科成绩都好,喜欢体育活动,又能歌善舞。
2.她刚进校时,在英语学习上遇到不少困难。但她不怕苦,不怕难,努力把英语学好。
3.她严于律己,乐于助人,是大家学习的.好榜样。
我们的班长
Li Min is our monitor. She is tall, healthy and lively. She does well in all subjects. She is fond of sports and is good at singing and dancing.
Li Min works hard at English. When she came to the school, she had quite a lot of difficulties with the language. But she was not afraid of them and always tried hard to overcome them. She was active in class and did a lot of practice after class. No pains, no gains.With great efforts she made much progress in English study.
Li Min is modest and always ready to help others. She is very strict with herself in her work and daily life. She sets us all a fine example.
我们的班长
李敏是我们的班长。她个子高,身体好,很活泼。她各科成绩都好,喜欢体育活动,又能歌善舞。
李敏学习英语很努力。她刚进校时,在英语学习上遇到不少困难。但她不怕苦,不怕难,努力把英语学好。她在课堂上积极主动地回答问题,课后努力学习。正如谚语所言:不劳无获。付出极大努力后,她在英语方面取得了很大进步。
在一个广阔的森林,孔雀对动物们说:“你们要参加评选森林之最的比赛,好吗?”动物们说:“好。”熊猫是第一个出场,说:“我们是中国最珍贵的国宝,因为我们熊猫在全世界数量很少,所以我们熊猫就很珍贵。”
蛇是第二个出场,说:“我们是世界上最毒的动物,因为我的牙齿咬是要了别人一口,那个人就会毒死的,所以我就是毒类动物。”
小白兔是第三个出场的.,说:“我是世界上最可爱的小动物,因为别人看到我吃萝卜的时候两个小牙齿露出来,所以我很可爱。”
狮子是第四个出场的,说:“我是世界上最凶猛的动物,因为我要是吼一下,所有的动物都会吓得逃走了,所以我是最凶猛的动物。”
孔雀是第五个出场,说:“我是世界上最漂亮的动物,因为我开屏的样子很漂亮,所以我很漂亮。”
经过了动物们的投票,它们都当选了森林之最。
Li Min works hard at English(李敏在英语这一科上很努力). When she came to the school, she had quite a lot of difficulties with the language.(当她刚来学校时,她在语言学习上遇到了困难) But she was not afraid of them and always tried hard to overcome them. (但是她不害怕,总是一直努力尝试去克服它们)She was active in class and did a lot of practice after class(她在课堂中积极表现,课后做大量练习). No pains, no gains(没有努力就没有收获).With great efforts she made much progress in English study.(通过她的.努力,也在英语学习上取得了很大的进步)
Li Min is modest and always ready to help others.(李敏是一个谦虚的人,她总是准备随时帮助别人) She is very strict with herself in her work and daily life.(她在工作上和日常生活里都严于律己) She sets us all a fine example.(她为我树立了一个好榜样)
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