Despite nutrition experts’ best efforts to educate people about the dangers of a diet filled with processed food, it appears that the world doesn’t want to listen. Medical specialists point out that, although eating too much unhealthy food is likely to be as dangerous in the long term as smoking, regular consumption of high-calorie food has somehow become more socially ________ than ever. While local authorities in some towns and cities have taken measures to fight the rise in this trend by ________ the number of fast food outlets permitted to be open at the same time, critics argue that people have every right to make their own decisions about what they eat and how they choose to live. However, the way in which we have come to eat a lot of takeaways isn’t only a(n) ________ issue of weight gain, or of buying larger clothes. The consequences of mass overconsumption should strike ________ into the hearts of everyone. Research suggests that there is an evolutionary reason as to why people ________ overeat—it is simply part of our inborn behaviour. When humans evolved, we did not have the adequate supply of food that we enjoy today, and so eating was more about ________ than pleasure. We became more likely to choose high-calorie foods, with high fat content, that could ________ us through cold winters when the supply of nourishment became inadequate. This explains why a 600-calorie burger seems so ________ : it makes us feel well fed and inspires contentment. Processed food ________ the reward response in our brains, so we feel obliged to overeat, and not necessarily in a healthy way. Junk food acts as a trigger (触发器) for chemicals such as the ‘feel good’ dopamine to flood through the brain and cause a sensation of happiness. ________ , high amounts of sugar and sodium (one of the chemicals in salt and other ingredients of fast food) cause a huge rise in blood sugar, pushing it to unnatural levels. This occurs within the first few moments of eating a high-calorie meal. From there, routinely processing such high levels of sodium is ________ . The body’s organs are pushed beyond their ________ ability to do so. The kidneys (肾脏) cannot remove all the extra salt from the blood, and thus extra sodium causes the heart to pump faster while transporting blood through the veins (血管). There are multiple dangers of high blood pressure, especially for the elderly and in the long term. Sodium ________ in such quantities can lead to dehydration, a condition whose symptoms are extremely similar to hunger, and this leads to a painful truth: as soon as you have finished your junk food meal, you immediately start to ________ another. Thereafter, the body starts to digest the food. Usually, this takes between 4 and 12 hours, but with fast food, where the fat content is so much higher, the same ________ lasts at least three days. 【小题1】 A．worthwhile B．acceptable C．relevant D．responsible 【小题2】 A．declaring B．estimating C．increasing D．limiting 【小题3】 A．alternative B．meaningless C．collective D．personal 【小题4】 A．boredom B．relief C．fear D．satisfaction 【小题5】 A．compulsively B．reluctantly C．defensively D．objectively 【小题6】 A．appetite B．evolution C．survival D．fighting 【小题7】 A．sustain B．please C．guide D．supply 【小题8】 A．tremendous B．surprising C．attractive D．expensive 【小题9】 A．stimulates B．guarantees C．produces D．illustrates 【小题10】 A．Predictably B．Therefore C．Comparatively D．Meanwhile 【小题11】 A．inevitable B．impossible C．significant D．powerful 【小题12】 A．natural B．superior C．minimum D．learned 【小题13】 A．turned up B．passed down C．looked over D．taken in 【小题14】 A．offer B．prepare C．desire D．share 【小题15】 A．symptom B．process C．damage D．hunger