题目内容
17.It may appear strange to hear that crops are making headlines.But this is no ordinary produce-these fruits and vegetables have been grown in simulated(模拟的)Martian and lunar soils!Though the possibility of growing crops in outer space only gained widespread interest after Matt Damon grew potatoes in the movie"The Martian",scientists have been testing the idea for many years.Fresh produce will after all be the key to setting up space colonies(殖民地).
Among the pioneers in this effort is a team led by Wieger Wamelink,a scientist at Netherland's Wageningen University.In 2013,they planted fourteen varieties of plants in simulated Martian and lunar soils.Though the"Mars"plants did not bear any produce,they grew better than the"lunar"plants,most of which died shortly after being planted.Lack of vapor in the soil,according to the scientists,might have accounted for the failure.
The second experiment began in late 2015.The researchers selected the same crops,while this time they used larger containers and added grass to them.In March 2016,their efforts were rewarded with a variety of produce including the vegetable that kept"The Martian"alive:potatoes.
However,the researchers were still not sure if the produce was safe to eat.That's because the Martian and lunar soils contain heavy metals like lead and arsenic,which do not affect plants but are poisonous to humans.
After months of testing,earlier this week,the team finally confirmed that the produce was safe for human consumption.Some of the crops even contained lower levels of heavy metals than plants grown in the"ordinary"earth soil.
To celebrate the success,the scientists held a dinner party that centered ground the crops.While there is no word on how the food tasted,it sure looks delicious.
24.Scientists are trying out the idea of growing crops in outer space becauseC.
A.the movie"The Martian"has opened up the possibility for the idea
B.soils on the Mars and the moon are similar to the earth soil
C.it is of great importance to space exploration in the future
D.it is a good solution to the world's growing population
25.What change was made in the second experiment?C
A.The shape of the containers.
B.The types of the plants.
C.The conditions of the soil.
D.The temperature of the lab.
26.Which of the following might be the best title for the passage?D
A.Wieger Wamelink-a Pioneer in Space Crop Growing
B.Space Colonies-Far from Possible
C.Food Safety-a Main Public Concern
D."Martian"and"Lunar"Crops-Safe for Humans.
分析 本文介绍科学家在太空做实验,种庄稼,以及太空种植的庄稼对人类的安全.
解答 4.C推理判断题.根据第二段Though the possibility of growing crops in outer space only gained widespread interest after Matt Damon grew potatoes in the movie"The Martian",scientists have been testing the idea for many years.Fresh produce will after all be the key to setting up space colonies(殖民地).可知在太空种庄稼对未来太空探索非常重要.根据句意可知选C.
5.C细节理解题.根据倒数第三段However,the researchers were still not sure if the produce was safe to eat.That's because the Martian and lunar soils contain heavy metals like lead and arsenic,which do not affect plants but are poisonous to humans.可知在第二个试验中土壤的状况发生了变化.根据句意可知选C.
6.D主旨大意题.根据第一段It may appear strange to hear that crops are making headlines.But this is no ordinary produce-these fruits and vegetables have been grown in simulated(模拟的)Martian and lunar soils!和最后一段中While there is no word on how the food tasted,it sure looks delicious.可知本文主题应该是太空种植的庄稼对人类的安全"Martian"and"Lunar"Crops-Safe for Humans,故选D.
点评 本文是一个科技类阅读,题目涉及多道细节理解题,做题时结合原文和题目有针对性的找出相关语句进行仔细分析,结合选项选出正确答案.推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案,切忌胡乱猜测,一定要做到有理有据.
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