十万个为什么·科学阅读30篇（9）

25 / 30

已读 0 / 30 课

植物如何利用微小的毛状结构收集晨露

Many desert plants have tiny hairs on their leaves and stems that look almost invisible.
These hairs create a rough surface which helps water vapor condense more easily at dawn.
When cool night air meets the warmer plant surface, dew forms on those fine hairs.
The droplets then slide down the hairs toward the base of the plant where roots absorb them.
This process lets plants survive weeks without rain by harvesting moisture from thin air.
Scientists study these structures to design better water-collecting materials for dry regions.
Unlike leaves that rely only on roots, these plants gain water from above and below.
The hairs also reduce evaporation by shading the leaf surface during hot daylight hours.
Some cacti and succulents evolved this trick over millions of years in arid climates.
Researchers even copied this design to build fog-harvesting nets used in Chilean villages.

听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。

Scientists study these structures to design better water-collecting materials for dry regions. 科学家研究这类结构，以设计更适合干旱地区集水的新型材料。
Researchers even copied this design to build fog-harvesting nets used in Chilean villages. 研究人员甚至仿照该结构，制造出用于智利村庄的雾水收集网。
This process lets plants survive weeks without rain by harvesting moisture from thin air. 这一过程使植物能靠从稀薄空气中收集水分，在无雨状态下存活数周。

这篇中文题目最接近哪一句？植物如何利用微小的毛状结构收集晨露一次学校运动会的通知一份超市购物清单

课文第一句的意思更接近？许多沙漠植物的叶片和茎上长有几乎看不见的细小绒毛。今天学校放假了。请把窗户打开。

这一课主要在讲什么？（看英文标题） How Plants Use Tiny Hair-Like Structures to Trap Morning Dew How to cook noodles A maths worksheet

Scientists study these structures to design better water-collecting materials for dry regions.

Scientists study these structures to design better water-collecting materials for dry regions.

第一版：录下来、回听、再听标准音。系统打分以后再加。

用今天的表达，自己说一句。

例子：Scientists study these structures to design better water-collecting materials for dry regions.