A. On the High Uintas.
B. Where David had been to.
C. In the Grand Canyon.
D. In the Christmas Meadows.
27. What does the passage intend to tell us mainly?
A. Take enough water with you when hiking.
B. Don’t hike to the Grand Canyon in too hot weather.
C. Robin still misses his late son, David.
D. Doctors can’t necessarily succeed in saving every patient.
C
In 1975, George Carlin appeared on a popular TV show, Saturday Night Live, with his famous words about blue food. ＂Why is the re no blue food? I can’t find blue food—I can’t find the flavor of blue! I mean yellow is lemon; orange is orange and red is cherry. Where is the blue food? ＂
Well, Carlin almost has it right—there’s not no blue food, but there’s certainly not a lot of it. Fresh-picked blueberries are blue, though they become purple when they are turned into jam. The blue in blueberries—like the purple in grapes and the red in tomatoes—is found in nature. But it isn’t a hot color for food. People don’t seem to prefer blue food. Some diet programs even suggest that those determined to lose weight should make their food blue.
Eating, in part, begins with our eyes. Charles Spence—an experimental psychologist from Oxford University—points out that color can change our taste experience. Commonly, we consider red-colored foods up to 20% sweeter than they actually are and green foods as being more sour. Spence suggests: human expectations may be influenced by our long history of watching—green fruits can become sweet as they grow up and turn red.
But what about blue? Except blueberries, much of the blue food we see these days is dyed blue artificially. Food producers argue that artificial color doesn’t do much harm to health. A lot of research shows that some physical problems of kids are related to food dyes—while other studies show no effects at all. Blue birthday cake or even blue-dyed chicken can be served on the dinner table. 28. What’s the purpose of the first paragraph?
A. To introduce the topic.
B. To introduce a TV show.
C. To state the author’s opinion.
D. To explain why people dislike blue.
29. What can we learn about blueberries from Paragraph 2?
A. The blue in blueberries is found natural.
B. Blueberries are still blue when processed.
C. Most people don’t eat blueberries owing to the color.
D. People often feel cold when they eat blueberries.
30. What does the author mean by saying eating sometimes begins with our eyes?
A. People prefer red-colored food to green food.
B. We should examine food carefully before eating.
C. Our taste experience can be influenced by color.
D. Red-colored foods look sweeter than they actually are.
第二节（共5小题，每小题2分，满分10分）
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
The common over-the-counter painkiller, Aspirin (阿司匹林) gained popularity right before the turn of the 20th century, but after many a decades’ worth of work, it was eventually replaced by other medicines.
31 Soon it was being handed out by doctors for daily usage to help prevent blood clots (凝块) and being packed away in purses across the globe for the purpose of heart-attack prevention. That is, unless you’re this age, which could make a use of aspirin deadly. 32 It may just help keep your teeth in good condition, according to the BBC.
Scientists in Belfast, Ireland, recently completed a study analyzing aspirin’s ability to help protect teeth, and the results were promising. The researchers at Queen’s University found that the common painkiller improves teeth’s ability to avoid tooth decay (腐烂).
33 The researchers are currently looking into ways in which the aspirin can be applied practically, as the drug needs to be installed in a way that it can slowly release doses into the tooth over time. For example, aspirin could make fillings abandoned, because the teeth would regenerate (再生) themselves.
Professor Tom Green, one of the researchers behind the study, expressed that the commonness of aspirin can prove to be a huge advantage for future research and application: ＂We are not really talking about something in 10 or 20 years’ time. 34 This novel approach could not only increase the long-term survival of teeth but could also result in huge savings for healthcare systems worldwide.＂
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