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英语专业四级听力50篇 18 Flowering Plants

时间:2018-03-01 07:02来源:互联网 提供网友:qing   字体: [ ]
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    (单词翻译:双击或拖选)

What arc the parts of a flower?

Flowers can have male parts and female parts. The female parts make eggs that become seeds. The male parts make pollen1. Pollen is a powdery material that is needed by the eggs to make seeds. To make seeds, pollen and eggs must come together. The wind, insects, and birds bring pollen to eggs. Many animals love flowers' bright colors. They also like a sugary liquid in flowers. This is called nectar. While they drink nectar, pollen rubs off on their bodies. As they move, some of this pollen gets delivered to the female flower parts.

Over time, the female parts turn into fruits that contain seeds. Animals often eat the fruits and the seeds pass through their bodies as waste. The animals do not know they are working for the plants by planting seeds as they travel to different places!


点击收听单词发音收听单词发音  

1 pollen h1Uzz     
n.[植]花粉
参考例句:
  • Hummingbirds have discovered that nectar and pollen are very nutritious.蜂鸟发现花蜜和花粉是很有营养的。
  • He developed an allergy to pollen.他对花粉过敏。
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TAG标签:   英语听力  英语考试  专业四级
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