时差N小时 果实成熟(上)

 

Usually a green, sour fruit is just a fruit that’s not ripe yet. If you left a lime on the tree longer would it eventually change color and become sweet, like an orange? Actually, limes do become much more yellow and less sour as they ripen¹. Under ripe limes are darker green and quite bitter. There are other clues to their ripeness too. Ripe limes are heavy with juice and more aromatic², with a fragrant³ “limey” smell. Most fruits we eat use similar cues to advertise ripeness.But why? Why would plants want parts of them to be eaten? Fruiting plants have evolved a partnership⁴ with certain animals in order to increase the success of their seeds. Tasty fruit pulp⁵ is the reward plants offer to animals in exchange for dispersing⁶ their seeds.

通常，一个绿色、酸味的水果还没成熟。如果你将酸橙留在树上，它最终会改变颜色，口味变甜吗？就像桔子那样吗？其实，酸橙成熟时确实变得更加黄，味道也不那么酸了。未成熟时，颜色变得深绿，味道也更苦。成熟也可其他方面看出来，成熟的酸橙果汁饱满，气味更芳香味。大部分我们吃的水果使用类似的方面来鉴定成熟度。d但是为什么？植物为什么会希望其中自身的一部分被吃掉？结果的植物进已经进化成与某些动物的关系来增加其种子的存活率。可口的水果是奖励动物们散播种子的回报。

1 ripen   

vt.使成熟；vi.成熟

参考例句：

• I'm waiting for the apples to ripen.我正在等待苹果成熟。
• You can ripen the tomatoes on a sunny windowsill.把西红柿放在有阳光的窗台上可以让它们成熟。

2 aromatic   

adj.芳香的，有香味的

参考例句：

• It has an agreeable aromatic smell.它有一种好闻的香味。
• It is light,fruity aromatic and a perfect choice for ending a meal.它是口感轻淡，圆润，芳香的，用于结束一顿饭完美的选择。

3 fragrant   

adj.芬香的，馥郁的，愉快的

参考例句：

• The Fragrant Hills are exceptionally beautiful in late autumn.深秋的香山格外美丽。
• The air was fragrant with lavender.空气中弥漫薰衣草香。

4 partnership   

n.合作关系，伙伴关系

参考例句：

• The company has gone into partnership with Swiss Bank Corporation.这家公司已经和瑞士银行公司建立合作关系。
• Martin has taken him into general partnership in his company.马丁已让他成为公司的普通合伙人。

5 pulp   

n.果肉，纸浆；v.化成纸浆，除去...果肉，制成纸浆

参考例句：

• The pulp of this watermelon is too spongy.这西瓜瓤儿太肉了。
• The company manufactures pulp and paper products.这个公司制造纸浆和纸产品。

6 dispersing   

adj. 分散的 动词disperse的现在分词形式

参考例句：

• Whereas gasoline fumes linger close to the ground before dispersing. 而汽油烟气却靠近地面迟迟不散。
• Earthworms may be instrumental in dispersing fungi or bacteria. 蚯蚓可能是散布真菌及细菌的工具。