请确认作文: V2:The country of Bonaria held a major soccer event five years ago. Therefore, if the country continues to hold major sport events, tourism will increase rapidly in the country and thus bring benefits to the country's economy.
请确认作文: V2:The country of Bonaria held a major soccer event five years ago. Therefore, if the country continues to hold major sport events, tourism will increase rapidly in the country and thus bring benefits to the country's economy.
第二段是讲琥珀具体作用。开始它的作用不是专门的,但是可以起到防虫的作用。但是就是有些虫会以此为食,也就是在虫与植物的相互作用中大家共同进化。 第二段说:Resin的形成为什么呢,1)有研究表明,植物产生resin或gum树胶等物质,以驱除repel其他昆虫的,但是对于一些昆虫来说,反而形成吸引attraction。2)又有研究说,这是一种chemical XXX,意思是互相依赖interdependence of 植物的chemical和食草昆虫的习性。这里也有题!!问哪种例子符合chemical XXX的定义。
第三段读的比较快,只记得有个新学科形似ecology但更长,就是研究这样物种间相互作用。此处有题。
疑似原文: Other liquidcompounds found in plants or exuded by plants, such as sap, latex, or mucilage,are sometimes confused with resin, but are not chemically the same. Saps, inparticular, serve a nutritive function that resins do not. There is noconsensus on why plants secrete resins. However, resins consist primarily ofsecondary metabolites or compounds that apparently play no role in the primaryphysiology of a plant. While some scientists view resins only as wasteproducts, their protective benefits to the plant are widely documented. Thetoxic resinous compounds may confound a wide range of herbivores, insects, andpathogens; while the volatile phenolic compounds may attract benefactors suchas parasitoids or predators of the herbivores that attack the plant. 其它液体化合物的发现的植物或分泌的植物,如sap、橡胶、或粘液的,有时是树脂混在一起,但没有化学一样。扼杀,特别是作为营养功能,树脂却不是这样的。没有共识,为什么植物分泌树脂。然而,树脂主要包括次级代谢产物或化合物,显然是不使用的主要生理作用的植物。有些科学家观点仅作为废物树脂,其保护作用对植物的广泛的记录。脂类化合物毒性可能使一个广泛的食草动物、昆虫、和病原体;而挥发性酚类化合物可能会吸引如寄生性资助者的食草动物,或是食肉动物的攻击的植物。 原文地址:http://en.wikipedia.org/wiki/Resin#cite_note-1