Read the article and select the best answer. Article: Taste is such a subjective matter that we don't usually conduct preference tests for food. The most you can say about anyone's preference is that it's one person's opinion. But because the two big cola companies--Coca-Cola and Pepsi Cola are marketed so aggressively, we've wondered how big a role taste preference actually plays in brand loyalty. We set up a taste test that challenged people who identified themselves as either Coca-Cola or Pepsi fans: Find your brand in a blind tasting. We invited staff volunteers who had a strong liking for either Coca-Cola Classic or Pepsi, Diet Coke, or Diet Pepsi. These were people who thought they'd have no trouble telling their brand from the other brand. We eventually located 19 regular cola drinkers and 27 diet cola drinkers. Then we fed them four unidentified samples of cola one at a time, regular colas for the one group, diet versions for the other. We asked them to tell us whether each sample was Coke or Pepsi; then we analyzed the records statistically to compare the participants' choices with what mere guess-work could have accomplished. Getting all four samples right was a tough test, but not too tough, we thought, for people who believed they could recognize their brand. In the end, only 7 out of 19 regular cola drinkers correctly identified their brand of choice in all four trials. The diet-cola drinkers did a little worse----only 7 of 27 identified all four samples correctly. While both groups did better than chance would predict, nearly half the participants in each group made the wrong choice two or more times. Two people got all four samples wrong. Overall, half the participants did about as well on the last round of tasting as on the first, so tiredness, or taste _ , was not a factor. Our preference test results suggest that only a few Pepsi participants and Coke fans may really be able to tell their favorite brand by taste and price. Question: The word "burnout" (Line3, Para. 5) refers to the state of _ . Options: A: being seriously burnt in the skin B: being badly damaged by fire C: being unable to function because of excessive use D: being unable to burn for lack of fuel
C

(Question)
Read the article and select the best answer. Article: We are naturally drawn to friends and colleagues with familiar voices, scientists have found.People prefer those who have a similar accent,intonation and tone of voice to themselves , they discovered. Previous research has focused on how masculine or feminine a voice sounds.Men with deeper voices and women with slightly higher voices were thought to sound more attractive,because they suggest a bigger or a smaller body. But the new study,published by a linguistics expert in Canada,suggests there is a more complex mechanism at play.Dr Molly Babel, from the University of British Columbia in Canada, said,"The voice is an amazingly flexible tool that we use to construct our identity.Very few things in our voices are changeless,so we felt that our preferences had to be about more than a person's shape and size.'' She recorded 30 volunteers' voices and asked each to rate the others' attractiveness on a scale of one to nine.Each participant was from western America,with similar accents.The people we assessed were all in the same dialect group,but they showed that dialect to different degrees. "We seem to like people who sound like we sound,we like people who fit within what we know,"Dr Babel said.She also found that breathy voices in women-typified by the famous American actress Marilyn Monroe-were seen as more attractive. The breathy tone,caused by younger and thinner vocal cords ,implied youthfulness and health A creaky voice,suggesting a person has a cold,is tired or smokes,was seen as unattractive.The participants preferred men who spoke with a shorter average word length and deeper voices. The linguist,whose work is published in the journal PLOS One,said,"Once you're outside of a certain range of familiarity,novel and exotic sounding voices might become more attractive.We also have to keep in mind we find some accents more preferable than others because of social fixed ideas." Question: In terms of voice preferences,the new findings highlight _ . Options: A: body size and shape B: shorter word length C: thicker vocal cords D: the same social groups
(Answer)
D

Ques:Read the article and select the best answer. Article: If the eyes are the romantic's window into the soul, _ In a study published last month in the journal Science, Peter Ungar of the University of Arkansas and his partner, Matt Sponheimer of the University of Colorado, US, examined the teeth of our early human ancestors to find out what they were really eating. They already knew that different foods cause different marks on teeth. Some cause scratches, while others cause pits .The carbon left on teeth by different foods is also different. Tropical grasses, for example, leave one kind of carbon, but trees leave another kind because they photosynthesized ( ) differently. Traditionally, scientists had looked at the size and shape of teeth and skulls ( ) to figure out what early humans ate. Big flat teeth were taken to be signs that they ate nuts and seeds, while hard and sharp teeth seemed good for cutting meat and leaves. But this was proven wrong. The best example was the Paranthropus , one of our close cousins, some of which lived in eastern Africa. Scientists used to believe Paranthropus ate nuts and seeds because they had big crests on their skulls, suggesting they had large chewing muscles and big teeth. If this had been true, their teeth should have been covered with pits like the surface of the moon. They would also have had a particular type of carbon on their teeth that typically comes from tree products, such as nuts and seeds. However, when the two scientists studied the Paranthroupus, it turned out to have none of these characteristics. The teeth had a different kind of carbon, and were covered with scratches, not pits. This suggests they probably ate grass, not nuts and fruit stones. It was the exact opposite of what people had expected to find. Carbon "foodprints" give us a completely new and different insight into what different species ate and the different environments they lived in. If a certain species had the kind of carbon on its teeth that came from grasses, it probably lived in a tropical grassland, for example. Question: The example of the Paranthropus was mentioned in the article in order to _ . Options: A: tell readers that they are one of our close cousins living in eastern Africa B: tell readers they had different eating habits from modern humans C: prove that size and shape of skulls does not show accurately what early humans ate D: tell readers that living environment makes a difference to skull structure

Ans:
C