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
外语
In what ways was the forager’s diet preferable to that of the early farmer? Click on 2 answers.
In what ways was the forager’s diet preferable to that of the early farmer? Click on 2 answers.
admin
2018-08-16
32
问题
In what ways was the forager’s diet preferable to that of the early farmer? Click on 2 answers.
Listen to part of a lecture in a history class.
Professor: We’ve been exploring early civilizations, those that existed 7,000 to 8,000 years ago. And today I’d like to talk about the switch from foraging, or searching for whatever wild foods were available, to farming: intentionally cultivating crops.
Now, the way that switch is frequently portrayed is that it was an improvement. The development of agriculture is usually portrayed as a good thing, but there are advantages to foraging. For one thing, it provides a better balance of nutrients and, in particular, more protein, at least compared to the diet of the early farmers. Foragers ended up eating a greater mix of foods, both plants and animals, but the early farmers—and to some extent this is still true today—the early farmers concentrated on just a few crops, like rice and wheat. There was less variety and therefore a smaller range of nutrients and a lot more carbohydrates, so the quality of the diet wasn’t as good, and we have evidence of this. Foragers were on average almost 15 centimeters taller than the early farmers. That’s a lot! ln Greece and Turkey, when comparing skeletons from forager communities to those of early farming communities, we see that height declined when farming was adopted, quite dramatically I might add.
Furthermore, farming increased one’s vulnerability to starvation. It was riskier to live off cultivated crops than to live off the wild, partly because it meant relying plants. Farmers, even modern farmers, only cultivated about 20 different plants on average and even then they really focused on just three: wheat, rice, and maize. Modern foragers, on the other hand, depend on over 100 different plants, what with fruits, nuts, berries, roots, beans, and so on. So, if a few cultivated crops failed... if the rice crops failed, for example, the farmers were in trouble. Now, of course, wild plants could fail too, but foragers ate so many different plants, they always had something to eat. Domesticated plants also may be more prone to failure than wild plants. We need to keep in mind that agricultural crops are the result of selective breeding. Farmers chose certain seeds, ones that have the qualities they wanted, refining the crop each harvest. So if seeds from the plumpest potatoes or the whitest rice grains were chosen, the heartier strains, the ones that can resist insect attacks, or disease, or extremes of temperature, or moisture, for example, may be eliminated because the farmer hadn’t chosen seeds from plants with these characteristics.
So how did the switch from foraging to agriculture happen? Well, no one’s really sure. Some speculate that during the final phase of the last ice age about 10,000 to 13,000 years ago, there was a shift in climate in a number of locations that led to the decrease of food you could forage for. The failure of wild harvests may have caused people in different parts of the world to plant some crops to make up for the shortage. There’s evidence that the practice of cultivation existed at that time. In China, for example, rice was cultivated as long as 10,000 years ago by people who were also still eating wild rice. By counting the proportions of wild rice and cultivated rice in plant fossil remains, archaeologists have determined that the switch to farming there was a slow one, taking about 4,000 years.
So it didn’t happen overnight, and there’s evidence that other groups of people also cultivated some cereal crops, blending both foraging and farming for thousands of years. So putting people in little boxes and classifying them as either foragers or farmers, well, we don’t do that anymore. Of course there were advantages to farming. Agriculture provided a greater quantity of food, and when you have an increasing population, as was the case in ancient Southwestern Asia, that’s a definite advantage. Also, with irrigation, crops could be planted in what was until then useless land. Wheat and barley, for example, didn’t grow naturally on the land between the Tigris and Euphrates Rivers in ancient Mesopotamia, but once that land was irrigated, all of it could become cultivated and hectare for hectare farming yielded more food than foraging. Farmers needed 20 times less land, 100 times less if they irrigated to feed the same number of people as foragers needed.
选项
A、The foods were easier to digest.
B、The foods were easier to cook.
C、It had greater variety.
D、It contained more protein.
答案
C,D
解析
细节题。线索词为advantages,在解释搜索野味的优点时,教授指出:For one thing,it provides a better balance of nutrients and,in particular, more protein,即营养更均衡、蛋白质含量更高,因此C选项和D选项是正确答案。该部分教授未提到野味易消化或易烹饪,因此A选项和B选项不正确。
转载请注明原文地址:https://kaotiyun.com/show/xyfO777K
0
托福(TOEFL)
相关试题推荐
Whatistheinternshipstipulationofeachcountrybelow?ChooseFOURanswersfromtheboxandwritethecorrectletter,A-F,ne
Labelthemapbelow.Writethecorrectletter,A-E,nexttoquestions11-15.CarPark
ChooseTHREEletters,A-G.WhichTHREEtopicsaretheyinterestedinstudyinginthefuture?AqualityoflifeoftouristsBwil
Choosethecorrectletter,A,BorC.ReflectiveJournalAssignmentWhatistheman’sattitudeafterthediscussion?
Whatproblemsdothespeakersidentifyforthisproject?ChooseSEVENanswersfromtheboxandwritetheletters,A-H,nexttoq
Choosethecorrectletter,A,BorC.Thelecturewasorganisedby
ChooseTWOletters,A-E.WhichTWOthingsaremostpopularamongusers?Achildren’sbooksBtextbooksCcomputergamesDtoysE
Choosethecorrectletter,A,BorC.Americanboysdropoutofschoolatahigherratethangirlsbecause
Choosethecorrectletter,A,BorC.IfAmericanshadanextradayperweek,theywouldspendit
ChooseTHREEletters,A-G.WhichTHREEitemsdoesthestudentneedtobringtothefirstclass?ApassportBcomputerdiskC
随机试题
阅读《道士塔》中的一段文字,然后回答问题。就在这时,欧美的学者、汉学家、考古家、冒险家,却不远万里、风餐露宿,朝敦煌赶来。他们愿意变卖掉自己的全部财产,充作偷运一两件文物回去的路费。他们愿意吃苦,愿意冒着葬身沙漠的危险,甚至做好了被打、被杀的准备
∫f(x)fˊ(x)dx=________.
我国古代社会占第一位的教育内容是( )。
硝苯地平在临床上用于
患者,女,12岁,右上第二乳磨牙龋洞已露髓。若X线检查根吸收1/2,有继承恒牙,首选治疗A.盖髓术B.拔除C.根尖诱导成形术D.根管治疗术E.暂不处理
未经法定机关核准,擅自公开或者变相公开发行证券的,下列表述中正确的有()。Ⅰ.责令停止发行Ⅱ.对直接负责的主管人员和其他直接责任人员给予警告,并处以一定数额的罚款Ⅲ.退还所募资金并加算银行同期存款利息,并处以非法所募资金金额1%以上5%以下的
通常为入境旅游团队办理住宿登记手续的人员是()。
()是继2岁之后正常儿童出现强迫现象的又一高峰年龄。
()对于企业相当于裁判对于()
在抗战时期,中国共产党制定了抗日民族统一战线策略总方针,其主要内容是
最新回复
(
0
)