导读: 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。 Passage one 话题分类:生物类 题目:Increasing Jellyfish Population 本文共6段。 第1段:
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。
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。
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!