高三英语联考推理判断题细节理解题
Corn is among the most commonly consumed grains on the planet. Globally, the average human will consume 70 pounds of corn each year! That's a whole lot of corn that needs to be grown each year, and that's not even accounting for corn being grown for animal consumption and biofuel. Just like many other popular foods, farmers are finding it difficult to get enough corn produced.
Of course, complicating matters is the fact that corn is a tropical(热带的) plant, meaning farmers can't produce it during the colder months of the year. Now, researchers from Cornell University's Boyce Thompson Institute have developed their own solution:a new variation of corn that recovers much more quickly after being exposed to cold temperatures.
Lead researcher David Stern, president of the Boyce Thompson Institute, and his team made this incredible breakthrough by building on research originally published two years ago. That study had discovered that increasing the levels of an enzyme(酶) called Rubisco in plants caused them to grow more rapidly and reach larger sizes. Rubisco helps plants turn atmospheric carbon dioxide(CO2) into sugar. Regarding corn specifically, Rubisco levels in corn drop considerably in cold weather.
This time, the research team planted a large group of corn plants, and provided a portion of the group with more Rubisco. Then, they allowed all the plants to grow for three weeks at 77 degrees Fahrenheit (normal growing temperature for corn) before dropping the temperature to 57 degrees Fahrenheit for two more weeks. Finally, they heated things up back again to 77 degrees.
“The corn with more Rubisco performed better than regular corn before, during and after chilling(冷却),” explains first author Coralie Salesse-Smith.“In fact, we were able to reduce the severity of chilling stress and allow for a more rapid recovery.”

All in all, the corn with more Rubisco was able to recover from the colder temperatures more quickly and with less damage done. The Rubisco corn plants grew to be taller. These results are very promising. However, Stern and his team say they're still working on improving their approach.

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9.What makes the research particularly necessary according to the text?
A.The great climate change.
B.Lack of heat-tolerant corn.
C.The large demand for corn.
D.Corn's insensitivity to climate.
10.What did the researchers do during the study?
A.They made those corn plants resist Rubisco.
B.They assessed corn plants' ability to absorb CO2.
C.They removed all the chilling stress on corn plants.
D.They exposed corn plants to different temperatures.
11.What should the researchers think of the corn plant they developed?
A.It has functioned well in solving global starvation.
B.It is qualified enough to be grown around the world.
C.It recovers from the colder temperatures more slowly.
D.It isn't yet completely perfect for chilling tolerance.
12.Which of the following can be the best title for the text?
A.Much More Corn Plants Are Badly Needed
B.Corn Plants Aren't Sensitive to Cold Weather
C.Scientists Have Developed Cold-resistant Corn
D.Tropical Corn Is Going to Become History Soon

答案
[语篇解读] 本文是一篇说明文。来自康奈尔大学博伊斯·汤普森研究所的研究人员研发出一种新的玉米品种。它暴露在低温环境后恢复得更快。
9.C 推理判断题。根据第一段的内容可知,玉米的消耗量很大,而第二段指出普通的玉米在寒冷的季节又无法生产。由此可推断,对玉米需求量大使这项关于培育新品种玉米的研究显得尤其必要。
10.D 细节理解题。 根据第四段“Then, they allowed all the plants to grow for three weeks at 77 degrees Fahrenheit(normal growing temperature for corn) before dropping the temperature to 57 degrees Fahrenheit for two more weeks. Finally, they heated things up back again to 77 degrees.”可知,研究人员将玉米植株暴露在不同的温度下。
11.D 推理判断题。 根据最后一段可推断,他们可能认为他们研发出来的玉米植株的耐寒性还不够完美。
12.C 主旨大意题。 通读全文,尤其是文章第二段的“Now, researchers from Cornell University's Boyce Thompson Institute have developed their own solution:a new variation of corn that recovers much more quickly after being exposed to cold temperatures.”可知,本文主要讲述的是:科学家研发出了一种耐寒的玉米品种。