这个短文完整读下来要多长时间?

来源:百度知道 编辑:UC知道 时间:2024/05/28 05:38:31
就是这个、
A scientific explanation of rainbow

The rainbow's appearance is caused by dispersion of sunlight as it goes through raindrops. The light is first refracted as it enters the surface of the raindrop, reflected off the back of the drop, and again refracted as it leaves the drop. The overall effect is that the incoming light is reflected back over a wide range of angles, with the most intense light at an angle of 40°–42°. The angle is independent of the size of the drop, but does depend on its refractive index. Seawater has a higher refractive index than rain water, so the radius of a 'rain'bow in sea spray is smaller than a true rainbow. This is visible to the naked eye by a misalignment of these bows.[2]

A rainbow does not actually exist at a particular location in the sky. It is an optical illusion whose apparent position depends on the observer's location and the position of the sun. All raindrops refract and reflect the sunlight in th

这个……难道不是取决于你个人的语速?@_@

我用了1分49秒全部读完。
如果你是高中,难度有点大,估计四分钟差不多。快速阅读的要点是能记住文章的关键信息。据专家说,有效的阅读速度是指在最短时间内阅读完毕,同时正确回答率必须在70%,这样的阅读速度才是有效的速度。只贪快,一眼扫过去,结果什么也记不住,这种阅读速度等于没有。因此,速度阅读要求抓住文章的关键信息点,这需要词汇、语法、习惯用法、遣词造句习惯、英语表达习惯、语感以及文章本身所讲内容都相对比较熟悉才可以,否则是无论如何也快不起来的。
供参考。

如果有高中英语水平的话,第一段没问题,第二段要4分钟

每段看首尾两句左右,再挑几个关键词(出现频率高的、数据、大写的、人名地名...)对应题目,应付选择题应该问题不大

可以了= =

差不多吧~~