朗读一篇450字的作文要多长时间（朗诵一篇六分钟的作文大概多少字） - 学习作文网

朗读一篇450字的作文要多长时间【一】

A wind and the calendar of the afternoon, me and my mother, cousin and the cousin yo dog to clean air, scenic Geleshan play. Small colorful flowers to welcome our arrival with a smile; Xiaocaohu their small head out and waved to us. We enjoy the beautiful scenery while hiking.

Along the way, yo dog to hop to hop from time to time naughty and jumped into the water hole, the others have a muddy splash. We came to a rock and saw the beautiful, fragrant honeysuckle fill the fields. Cousin cousin and I could not wait to pick up the pick pocket honeysuckle. Pick a pick, and I was honeysuckle mixed with a bit of rattan, the foot-slip, fall down on. If my hand tightly grasped the honeysuckle vines and perhaps on to pieces of it. End mining flowers, the mother asked us: "Do you know what the benefits of honeysuckle it?" Cousin said: "Honeysuckle is Shannon." Cousin said: "Honeysuckle Qingre, Reduce Pathogenic Fire." I said : "Honeysuckle can also be down summer heat." her mother said: "You are right, but the best place honeysuckle is native, does not appreciate other people's live."

After the play, I not only enjoy the beautiful scenery, but also to understand the truth in life. Ah really gain a lot.

朗读一篇450字的作文要多长时间【二】

一条绳子有多长呢？如果给你一条绳子，求它的长度，也许你会用你手中的直尺去量它。但可能会不准确，所以我们要用更精确的测量物去测量。

有一天，一位节目主持人向一位五金店老板要了一条绳子，并用尺子测量出大约为32厘米。为了求得更精确的答案，主持人去找他的好友——一位数学教授。教授带着他去了国家物理实验室，在去时的火车上，他们寻问了一位路人，这条绳子有多长？路人打量了一下说：“9英尺”。“没错，差不多”主持人说。

到了国家物理实验室，他们使用了“绳尺”去测量，所为的“绳尺”，其实是一个小机器，它会跟据一个小圆球去测量这条绳子有多长。最后测量的结为319毫米442微米。这个答案使我有点惊讶。“绳子”居然可以测量到微米，实在太厉害了。

回到酒店中，教授让主持人分别用直尺、绳子与地图测量轮，测量了在世界地图上黑撒到卢港的距离，果然这和教授说的一样，不同的测量方法真的会改变结果，结果分别是42厘米、47厘米与65厘米。教授说：“如果我们有更精确地测量方法，测出的长度可能会更长。因为你会深入任何角落和裂缝。所以，这绳子不是光滑的，它有很多褶皱的地方，所以这段绳子有多长，取决于测量的准确程度。”

最后，他们到了海滩，教授不停的让主持人画三角形，这些三角线组成了一个科赫雪花图形。只要图案不断被放大，就会有图形会被不断重复。所以教授认为这一条线也是一样的，所以得出的`结论是：绳子是无限长的！

他们用不同的方法测量出了不同的结果，越用精细的方法，绳子的长度就越准确。所以，我们在生活中要多加仔细，得到更多的知识。