首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
考研
You are what you eat, or so the saying goes. But Richard Wrangham, of Harvard University, believes that this is true in a more p
You are what you eat, or so the saying goes. But Richard Wrangham, of Harvard University, believes that this is true in a more p
admin
2015-05-24
42
问题
You are what you eat, or so the saying goes. But Richard Wrangham, of Harvard University, believes that this is true in a more profound sense than the one implied by the old proverb. It is not just you who are what you eat, but the entire human species. And with Homo sapiens, what makes the species unique in Dr. Wrangham’s opinion is that its food is so often cooked.
Cooking is a human universal. No society is without it No one other than a few faddists tries to survive on raw food alone. And the consumption of a cooked meal in the evening, usually in the company of family and friends, is normal in every known society. Moreover, without cooking, the human brain (which consumes 20-25% of the body’s energy) could not keep running. Dr. Wrangham thus believes that cooking and humanity have developed alongside. In fact, as he outlined to the American Association for the Advancement of Science (AAAS), in Chicago, he thinks that cooking and other forms of preparing food are humanity’s "killer application": the evolutionary change that underpins all of the other—and subsequent—changes that have made people such unusual animals.
Humans became human, as it were, with the emergence 1.8 million years ago of a species called Homo erectus. This had a skeleton much like modern man’s—a big, brain-filled skull and a narrow pelvis and rib cage, which imply a small abdomen and thus a small gut. Hitherto, the explanation for this shift from the smaller skulls and wider pelvises of man’s apelike ancestors has been a shift from a vegetable-based diet to a meat-based one. Meat has more calories than plant matter, the theory went. A smaller gut could therefore support a larger brain.
Dr. Wrangham disagrees. When you do the sums, he argues, raw meat is still insufficient to bridge the gap. He points out that even modern "raw foodists", members of a town-dwelling, back-to-nature social movement, struggle to maintain their weight—and they have access to animals and plants that have been bred for the table. Pre-agricultural man confined to raw food would have starved.
Start cooking, however, and things change radically. Cooking alters food in three important ways. It breaks starch molecules into more digestible fragments. It "denatures" protein molecules, so that their amino-acid chains unfold and digestive enzymes can attack them more easily. And heat physically softens food. That makes it easier to digest, so even though the stuff is no more calorific, the body uses fewer calories dealing with it.
Which of the following would be the best title for the text?
选项
A、The Evolution of Human Beings
B、The Evolutionary Role of Cookery
C、The Great Importance of Cookery
D、The Significance of Meat-based Diet
答案
B
解析
主旨大意题。主旨大意题要扣住关键词和中心点。本文主题是讨论烹煮对人类发展的意义。根据cookery一词锁定B项和C项。B项一语中的,表明烹煮在人类进化过程中扮演重要角色,为答案。
转载请注明原文地址:https://kaotiyun.com/show/it74777K
0
考研英语一
相关试题推荐
Inanessay,entitled"MakingItinAmerica,"inthelatestissueofTheAtlantic,theauthorAdamDavidsonrelatesajokefrom
Deathisadifficultsubjectforanyone,butAmericanswanttotalkaboutitlessthanmost.Theyhaveaculturalexpectationth
ThePewFoundationdiscoveredinarecent【C1】______thattensionsoverinequalityinwealthnow【C2】______tensionsoverraceandi
Duringtherecession,joblosseswerenotequitablyshared;employmentratesfellmoreforsomegroupsthanothers.Itisalsow
DepressionAstudyledbyresearchersattheUniversityofPennsylvaniaindicatesthattheantidepressantsworknobetterth
EducationChangesoftheKindergartenChildrenWehavetwosetsoftwinswhoareinfourthgradeandkindergartenataweli-
Parents’MistakeIdeasAboutAsthmaDiseaseWatchingachildstruggletobreatheduringanasthmaattackisfrighteningfor
Despitetheeverydayuseofelectricalappliancesandtechnicaldevices,onlyaminorityofpeoplelivingtodayhasdeeperinsig
Awomanwithatwinbrotherhasfewerchildren.Twinbrotherscanleavequiteanimpression.Themerepresenceofaboyinthes
随机试题
望舌苔变化可以分析
肺通气的原动力是()(2004年)
2个月小儿,足月顺产,进行母乳喂养,为预防佝偻病服用维生素D,每日补充的合理剂量是
“典型地震遗址、遗迹的保护,应当列入地震灾区的重建规划”的条款出自()
某建筑公司同某混凝土站签订了商品混凝土供货合同,合同约定建筑公司于合同签订后5日内支付60%货款,后建筑公司听说混凝土站负债累累,担心付款后不能供应商品混凝土,遂在合同约定付款期内拒绝付款。对此,下列表述正确的是()。
完成招标人提出的不能以实物计量的零星工作项目所需的费用应列入()。
在业务外包过程中,由于供应商的过错造成供应中断,引起银行部分支付业务无法正常运行而造成严重损失。此事件对应的操作风险成因是()。
旅游团队的人数必须在()人以上。
【2015陕西汉中】奥苏伯尔提出了下位学习、上位学习和()三种同化模式。
Shellyhadpreparedcarefullyforherbiologyexaminationsothatshecouldbesureofpassingitonherfirstendeavor.
最新回复
(
0
)