下面的内容就是2017年4月1日托福阅读真题答案及解析,包括对文章话题的分类、题目回顾、文章段落的解析以及重点词汇的整理。这些文章话题之前可能也出现过,所以大家平时备考要注意总结。

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  Passage one

  话题分类:生物类

  题目:Increasing Jellyfish Population

  本文共6段。

  第1段:Whether we should worry about the increasing jellyfish population or not. On the one hand, prey population increases and water temperature changes; on the other hand, it occurs in many places. Then take Japan as example, whose jellyfish population drifted to the sea has risen up to 500 million each day。

  第2段:指出导致jelly fish population增加的因素,其一是人们对seafood 的喜爱导致overfishing ,使得predator的数置减少。

  第3段:指出另一个因素是jellyfish's thrive features: Global warming and acidification。

  第4段:海水富营养化。

  第5段:other aquatic life forms cannot exist,但是jellyfish有几个特征使得其能生存:good survival rates, rapid reproduce and low oxygen level。

  第6段:Benefits from globalization。

  词汇题:

  1. unprecedented = never seen before

  2. permanent = constant

  3. excessive= too many

  4. inadvertently = accidentally

  本文是2017年4月1日托福阅读真题答案及解析。

  Passage two

  话题分类:社会类

  題目: The Importance of Mail Service in the Early United States

  本文共四段。

  第1段:America formation promotes circulation of news and information, both velocity and volume, people trades with one another in distance。

  第2段:The United States Post Office makes news circulation easy and free。随后介绍了two decisions that help postal system to improve integrate nation: one is post office is granted to sell all the newspapers at low price, another is Congress never turning down any petition for new road or new post service.

  第3段:提出虽然post service由political purpose决定,但是它也影响了 business ,举了 wheat 的例子。

  第4段:transportation improvements, new built roads提高了mail service的capacity and speed up service, too。随着交通的发展,越来越多的方式 can deliver mails : sailing ship, stagecoach, steamboat, canal boat and railroad。

  词汇题:

  1. explicit = clear stated

  2. integration = unit

  3. suspicion = distrust

  Passage three

  话题分类: 农业类

  題目: The Green Revolution

  第1段:The green revolution can date as far back to 1930s。农业科学家做实验以 manipulate the seed of crops to improve productivity。随后指出科学家把中国大米和印度大米作为parents研究出IR8,优点是bigger head of grain and stronger stem。虽然IR8提高了产量,但是科学家仍然不满足,于是研究出了IR36,优点是:来自13个parents (母本),可以抵抗15种 pests,110 days of growing period and three crops each year。

  点击获得2017年托福考试真题及答案解析【汇总】

  第2段:global hunger makes the green revolution extraordinary。India can be self-sufficient in crop production and Asia increases the crop production.

  第3段:非洲的地理环境使得其受益较小,故科学家研发出新的super rice, which can be transplanted that depended on seeding directly instead of seedling。

  第4段:指出 the green revolution 有很多detractors ,比如 chemical fertilizers and pesticides can reduce the organic matter in the soil, and many small-scale farmers lack of financial resource to purchase genetic enhanced seeds。

  词汇题:

  1. experimenting with = trying to

  2. drastic= extreme

  3. acquired = obtained

  Passage four

  话题分类: 生物类

  题目: The Origin And Rise of Modern Birds

  第1段:指出 all bird groups are classified as Neornithes, 科学家使用K-T extinction 作为新旧鸟类的dividing line。

  第2段:传统认为modern birds起源于cenozoic。

  第3段指出有新的研究利用molecule time estimation得出modern birds实际上起源于Cretaceous。

  第4段:指出尽管 molecule time estimation是根源于gene sequence,但是不能解释导致mass extinction产生的evolution process。

  词汇题:

  1. vacated = emptied

  2. counterpart=equivalent

  3. compelling = convincing

  4. essential = principal

  以上的内容是2017年4月1日托福阅读真题答案及解析,希望对你们有更多帮助和指导!

2017年4月1日托福考试真题及解析【汇总】
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