問題詳情

第二篇：Just because you’re pregnant doesn’t mean you cease to be a normal human who has regular food cravings, and at timesthat can be due to anything from dehydration to being a signal from your body that it’s craving specific nutrients. But pregnancydoes involve a surge of hormones, and that’s where things start to get weird.While many women do experience cravings during pregnancy, for some the cravings are an excuse to eat foods they’dnormally avoid. Just remember that the eating-for-two thing can be taken too far. Pregnancy can be stressful and full of fear of theunknown. Nothing will ever be the same once that little one arrives, so it’s hardly a surprise that moms-to-be might turn tocomfort foods like pasta, bread, or cookies.Some pregnancies spur a yearning for foods that are flavor-rich. From an evolutionary standpoint, this makes sense. Acraving for highly palatable foods may be hard-wired during pregnancy, as it may be nature’s way to make sure that pregnantwomen consume enough calories to ensure a healthy pregnancy.An extreme version of cravings gone really wild is pica, the practice of craving substances with little or no nutritional value.The word pica is Latin for magpie, which is a bird notorious for eating almost anything. Possibly anemia-related, pica iswell-documented in the medical literature. Some pregnant women will have longings for paper, paint chips, and, yes, loam.The reason that some women develop pica cravings during pregnancy is not known for certain, but it may be a sign of ironand zinc deficiencies. Some speculate that pica cravings are the body’s attempt to obtain vitamins or minerals that are missingthrough normal food consumption. The craving for dirt may have a physiological basis, but it also has a very strong cultural basisas well. In some cultures it is not uncommon for women to consume clay or dirt during pregnancy. In some places, people believethat the practice relieves nausea that comes with morning sickness.No matter how strong your craving, don’t give in to eating potentially unsafe stuff such as raw or undercooked meat,unpasteurized juice or milk, raw sprouts, and definitely not alcohol.
56. What is the main idea of the passage?
(A) Diagnosis of and treatment for pica.
(B) Pregnancy craving in different forms.
(C) Hormone surge and nutrition deficiency.
(D) Dietary dos and don’ts during pregnancy.

參考答案

答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)

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