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新东方名师教你托福阅读精读方法

2018-05-31 13:58:44来源:网络

  Extrafloral nectaries at the base of each sepal attract several kinds of insects, but 96 percent of them are ants, several different species of them. When buds are still small, less than a quarter of an inch long, the sepal nectaries are already present and producing nectar. They continue to do so as the flower develops and while the fruit matures. Observations leave little doubt that ants protect morning glory flowers and fruits from the combined enemy force of grasshoppers, caterpillars, and seed beetles. Bentley compares the seed production of six plants that grew where there were no ants with that of seventeen plants that were occupied by ants. Unprotected plants bore only 45 seeds per plant, but plants occupied by ants bore 211 seeds per plant. Although ants are not big enough to kill or seriously injure grasshoppers, they drive them away by nipping at their feet. Seed beetles are more vulnerable because they are much smaller than grasshoppers. The ants prey on the adult beetles, disturb females as they lay their eggs on developing fruits, and eat many of the eggs they do manage to lay.

  【词】

  sepal 萼片

  bud 芽

  nip 咬

  vulnerable 易受攻击的

  prey on 捕食

  【段】

  第1句 蜜液吸引蚂蚁

  第2句 花很小的时候就会产蜜液

  第3句 蜜液的产出会一直持续

  第4句 毫无疑问,蚂蚁会保护牵牛花免受昆虫的侵害

  第5-6句 Bentley做实验支持上述观点

  第7句 蚂蚁抵抗蝗虫

  第8-9句 蚂蚁抵抗甲壳虫

  小结:接上段陈述蚂蚁会保护牵牛花,并将前四段内容进行细化陈述。

  分割线

  【总结】

  第一段 阐述花产生蜜液从而吸引昆虫保护花

  第二段 进一步叙述蚂蚁与花的关系

  第三段 陈述过去与现在的理论

  第四段 举例陈述其他昆虫对于花的破坏

  第五段 具体陈述蚂蚁保护花,并对前文进行再一次的证明陈述

  经过对于一篇文章的详细精读分析,相信你一定收获了不少。精读中,词句是基础,一定要背好、查好、分析好,段篇是进阶,要站在更宏观的角度去看待。微观加宏观才是读好、分析好一篇文章的最好的方法。当然,一切好的方法都重在坚持与不断积累,只是心血来潮的做一篇是远远不够的哟。

  以上就是为大家整理的“新东方名师教你托福阅读精读方法”,更多精彩内容请关注新东方在线托福频道!

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