2021年6月四级 第1套 Section A 选词填空

Most animals seek shade when temperatures in the Sahara Desert soar to 120 degrees Fahrenheit. But for the Saharan silver ant, __26__ from their underground nests into the sun's brutal rays to __27__ for food, this is the perfect time to seek lunch. In 2015 these ants were joined in the desert by scientists from two Belgian universities, who spent a month in the __28__ heat tracking the ants and digging out their nests. The goal was simple, to discover how the __29__ adapted to the kind of heat that can __30__ melt the bottom of shoes.

Back in Belgium, the scientists looked at the ants under an electronic microscope and found that their __31__, triangular hair reflects light like a prism (棱镜), giving them a metallic reflection and protecting them from the sun's awful heat. When Ph.D. student Quentin Willot __32__ the hair from an ant with a __33__ knife and put it under a heat lamp, its temperature jumped.

The ants' method of staying cool is __34__ among animals. Could this reflective type of hair protect people? Willot says companies are interested in __35__ these ants' method of heat protection for human use, including everything from helping to protect the lives of firefighters to keeping homes cool in summer.