内容正文:
专题 03 草莓表面的籽是并非它的种子(食物的发现与问题)
--2023年高考选材时文阅读外刊新闻+热词必背+高考链接+语法填空+全文翻译
主题语境
草莓表面的籽是并非是它的种子
话题
人与自然
文章来源
www.iflscience
食物与生活
食物与问题
目录:
1. 外刊时文
2. 热词+短语
3. 高考链接--词汇运用
4. 长难句解析
5. 全文翻译
6. 高考链接--语法填空
一 外刊原文
Those White Dots On Strawberries Aren't Strawberry Seeds
People who study plants don't consider strawberries to be true berries. True berries, such as cranberries and blueberries, have seeds inside them. If you cut open a strawberry, you will notice right away that there are no seeds inside.
Of course not! The seeds are on the outside, right? Well, sort of…
Technically, what we think of as a strawberry is an enlarged part of the plant called the "receptacle," which is located adjacent to the part of the plant called the "stamen." Usually, a fruit develops from the ovaries of a flower.
Most scientists —and all cooks —still consider strawberries to be fruits, though. Sometimes strawberries are called "aggregate accessory fruits" since the part we eat comes from the part that holds the ovaries instead of the ovaries themselves.
Strawberries are technically come from the family Rosaceae. Raspberries and blackberries also fall into this category, and they all belong to the same family as roses.
The "seeds" you see on the outside of a strawberry are actually the plant's ovaries and are called "achenes." Each "seed" is technically a separate fruit that has a seed inside of it.
Strawberry plants send out what's called "runners" as they grow, essentially little strawberry clones that will take root and begin growing when they reach the ground.
So how did the strawberry get its name?
Some believe that English children in the 19th century would pick strawberries and string them on grass straws to sell as "straws of berries." Others think the name came from the practice of placing straw around the plants to protect them from the weather. Most people, however, believe "strawberry" came from "strewn berry" since strawberries appear to be "strewn" a