Hayes cited research done more than 75 years ago by a chemist named Fox and a geneticist named Blakeslee, showing that individuals differ in their ability to taste certain chemicals. As a result, Hayes explained, we know that a wide range in taste acuity exists, and this variation is as normal as variations in eye and hair color.
Some people, called supertasters, describe bitter compounds as being extremely bitter, while others, called nontasters, find these same bitter compounds to be tasteless or only weakly bitter. he said. Response to bitter compounds is one of many ways to identify biological differences in food preference because supertasting is not limited to bitterness.
41. John Hayes points out in a recent study that
A. it is healthy to eat food without salt.
B. many people reject low-salt food completely.
C. food with less salt tastes better.
D. many people accept low-salt tasteless food reluctantly.
【答案】:D
42. The fourth paragraph describes briefly
A. the purpose of the study.
B. the analysis of the research results.
C. the research methodology.
D. the conclusion of the study.
【答案】:C
43. The article argues that supertasters
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