pollen是什么意思

短语搭配

(1)pollen tube花粉管

(2)pollen grain花粉粒

(3)pollen analysis花粉分析；孢粉学

(4)pollen count花粉统计；花粉记数

(5)pollen basket花粉筐

(6)pollen zone花粉带

双语例句

(1)Bees play an important role in the process of pollen transmission.

蜜蜂在花粉传播的过程中扮演着重要的角色。

(2)The little girl is allergic to all kinds of pollen.

这个小女孩对一切花粉都过敏。

(3)The transmission of pollen relies mainly on wind and animals.

花粉的传播主要依靠风力和动物。

(4)Pollen is a fine powder produced by flowers.

花粉是由花产生的细粉

(5)Well, that’s terrifying. I only have animal and pollen allergies. So, I get hay fever in the spring.

这太可怕了。我只有对动物和花粉过敏。所以，一到春天我就会得花粉症。

(6)Seeds and pollen are spread by the wind.

种子和花粉是随风传播的。

(7)As the day goes on, the pollen dries up and becomes hard.

随着日子一天天过去，花粉变得又干又硬。

(8)Avoid trips to the country while the pollen count is high.

花粉计数高时，尽量避免去乡村旅行。

(9)Many people are allergic to airborne pollutants such as pollen.

许多人对空气中花粉之类的污染物质过敏。

(10)The air is pure, with neither pollution nor pollen.

空气纯净，没有污染也没有花粉。

同根词

词根 pollen

(1)pollinator n. 授花粉器

(2)pollinium n. [植] 花粉块

(3)pollinosis n. 枯草热，花粉病

(4)pollenate vt. 给…授花粉

释义

n.

a fine powdery substance, typically yellow, consisting of microscopic grains discharged from the male part of a flower or from a male cone. Each grain contains a male gamete that can fertilize the female ovule, to which pollen is transported by the wind, insects, or other animals.

花粉。

词源

" mid 18th cent.： from Latin, literally ‘fine powder’. "

考纲分布

近6年出现7次

重要程度: 5星

100%; n 花粉

考纲释义

( 1)n. 花粉

真题例句：

If my neighbors grow bad corn, the bad pollen will have bad influence on mine.

如果我的邻居种了坏的玉米，坏的花粉会对我产生不好的影响。[2018年 新疆乌鲁木齐卷 短文填空]

The wind picks up pollen from the corn and blow it from field to field.

风从玉米上带走花粉，并把它从一块地吹到另一块地。[2018年 新疆乌鲁木齐卷 短文填空]

They do not have to get pollen from another dandelion flower in order to form seeds.

它们不需要从其他蒲公英花中获取花粉来形成种子。[2018年 苏州卷 阅读理解]

(1)Having been delivered by an insect, two cells from the pollen burrow deep into the flower's ovary.

昆虫将花粉运送到花柱上，每粒花粉中都有两个细胞它们一路向下，进入花朵的子房。《How To Grow A Planet》《植物之歌》

(2)But, and here's the clever bit, the second cell from the pollen does a completely different job.

然而真正的聪明才智体现在花粉中的第二个细胞有着完全不同的使命。《How To Grow A Planet》《植物之歌》

(3)They became targets, using insects to transfer the right pollen to the right plant, even over great distances.

这样有的放矢，即使距离很远，昆虫也能够将花粉传递到与之匹配的花朵上。《How To Grow A Planet》《植物之歌》

(4)Instead it was reliable. Insects carried pollen directly to other plants. It was the birth of flowers.

昆虫传粉则非常可靠，因为它们直接把花粉传到另一株植物那里，这就是花的诞生。《How To Grow A Planet》《植物之歌》