2023下半年英语六级口语备考练习(2)

2023-08-22 08:27:00来源:网络

  英语六级考试是一项难度较大的英语考试,尤其是口语考试。主要难点体现在考生的口语表达能力上。下面是小编整理了2023下半年英语六级口语备考练习(2),给大家作参考。

  2023下半年英语六级口语备考练习(2)

  温度影响口味

  Does an ice cold drink actually taste better than the same beverage at room temperature?

  Depends on what its taste is: a new study finds that the intensity of some flavors varies with temperature. The work is in the journal Chemosensory Perception. Researchers took solutions that tasted bitter, sour, sweet, or astringent ― a flavor found in legumes and raw produce that creates a dry,puckering feel in the mouth. They either chilled the solutions to 5 degrees Celsius, the recommended temperature for keeping food cool…or heated the solutions to 35 degrees Celsius, a couple degrees below human body temperature. Volunteers then rated the tastes. Both sour and astringent solutions tasted stronger at warm temperatures, and the intensity lasted longer than it did with chilled drinks. Bitter flavors came through best when chilled. And temperature had no effect on perception of sweetness. For most people, temperature can enhance flavors. But for some, dubbed thermal tasters, temperature alone can be a flavor. Heating or cooling parts of the tongue creates the sensation of taste without food― a finding that's hard to swallow.

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