托福TPO67阅读真题+题目+答案下载：Crop Engineering

托福TPO67阅读真题+题目+答案下载：Crop Engineering

[Paragraph 1] Our current ability to precisely engineer crop genomes was preceded by a long history of genetic manipulation in agriculture Human impact and its accompanying effects began early in our history at many tropical and subtropical sites around the globe. Our ancestors were omnivores, consuming whatever plant or animal material they fortuitously encountered. Even then, humans had considerable effects on the environment, reducing and even driving to extinction populations of the animal species they hunted and expanding the distribution of plants by accidentally distributing seeds as they migrated.

[Paragraph 2] Humans probably first realized that seeds could yield a stable food supply through agriculture when they observed plants arising from refuse or wasteland, perhaps fruit trees growing along forest and jungle paths from discarded or defecated seeds or else vegetables sprouting in garbage dumps at temporary settlements. A more organized approach to agriculture began about eight to ten thousand years ago coincidentally at a number of locations around the globe. The most diverse farming developed in the Near East, with legumes, cereals, flax, sesame, and fruit trees. At about the same time, New World residents were growing beans, maize, squashes, and potatoes, and Asian farmers were beginning to cultivate rice.

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托福TPO67阅读真题Crop Engineering题目：

1. (单选题)According to paragraph 1, all of the following are true of early humans EXCEPT

A. They fed on any plants and animals that they found

B. They significantly reduced the number of animal species through hunting

C. They spread plants from one place to another as they migrated.

D. They introduced new animal species to different parts of the world.

2. (单选题)Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information

A. Humans first saw fruit trees growing along pathways and vegetables growing on garbage dumps in temporary settlements and started cultivating them for a steady food supply.

B. Humans living in temporary settlements noticed that fruit trees and vegetables that they could cultivate for a constant supply of food were growing in waste areas

C. Humans saw plants growing in waste areas at temporary settlements and got the idea that they could plant seeds to ensure a constant supply of food

D. Humans maintained a constant food supply by planting fruit trees along pathways and vegetables in garbage dumps and other waste areas in temporary settlements

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