2017年4月1日托福阅读考试机经回忆【新航道版】
今天上海新航道雅思培训班 小编为大家整理了2017年4月1日雅思考试阅读真题回忆,每次考试后新航道雅思小编会在1-2天内更新雅思机经回忆,希望对大家的雅思考试有一定帮助,更多更全的雅思机经,可添加微信:shnc_2018索取。
2017年4月1日托福真题回忆-Reading
Passage 1
Topic:Jellyfish
Content Review
第1段:Whether we should worry about the increasing jellyfish population. 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 raised up to 500 million each day.
第2段:指出导致jellyfish 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.
Passage 2
Topic:美国早期的邮递业
Content Review
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.随着交通发展,越来越多的方式can deliver mails: sailing ship, stagecoach, steamboat, canal, boat and railroad.
Passage 3
Topic:Green Revolution
Content Review
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提离了产量,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 genetically enhanced seeds.
Passage 4
Topic:鸟类进化
Content Review
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modem 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.