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
1 The three energy-yielding food nutrients are carbohydrates, proteins, and fats. The amount of energy a food provides depends o
1 The three energy-yielding food nutrients are carbohydrates, proteins, and fats. The amount of energy a food provides depends o
admin
2019-07-01
16
问题
1 The three energy-yielding food nutrients are carbohydrates, proteins, and fats. The amount of energy a food provides depends on how much of each nutrient it contains. When broken down in the body, a gram of carbohydrate and a gram of protein each yield about four kilocalories of energy. A gram of fat yields nine kilocalories; therefore, fat has a greater energy density than either protein or carbohydrates. Foods with a high energy density provide more kilocalories per gram than foods with a low energy density.
2 Different meals may deliver the same number of kilocalories but varying amounts of food energy. For example, a 450-gram breakfast of cereal, milk, fruit, egg, turkey sausage, toast, and jam and a 150-gram breakfast of doughnuts both deliver 500 kilocalories. However, the first breakfast, which is higher in protein, has a lower energy density than the doughnuts and supplies three times as much food energy.
3 During a meal, as food enters the digestive tract, hunger decreases and the body reaches satiation, the signal to stop eating. The nutrient composition of a meal affects the level of satiation the meal provides. Foods low in energy density are more satiating than foods high in energy density. Of the three energy-yielding nutrients, protein is the most satiating and fat is the least satiating. High-fat foods are flavorful, which encourages people to eat more, but they are also energy-dense and deliver more kilocalories per bite. Therefore, eating meals high in fat may lead to overconsumption.
Which sentence below best expresses the essential information in the highlighted sentence in paragraph 2?
选项
A、Although the first breakfast is higher in protein, the doughnuts are higher in food energy.
B、The high-protein, less energy-dense breakfast provides three times as much energy as the doughnuts.
C、The doughnuts provide more food energy than the first breakfast, which is lower in energy density.
D、Because the doughnuts are higher in fat, they contain three times as much food energy as the other breakfast.
答案
B
解析
The high-protein, less energy-dense breakfast... is a paraphrase of However, the first breakfast, which is higher in protein, has a lower energy density than the doughnuts.......provides three times as much energy as the doughnuts is a paraphrase of ...and supplies three times as much food energy.
转载请注明原文地址:https://jikaoti.com/ti/zUhYFFFM
0
托福(TOEFL)
相关试题推荐
Whatisthemainopinionofeachofthefollowingpeople?ChooseFIVEanswersfromtheboxandwritethecorrectletter,A-G,ne
ChooseTWOletters,A-E.ForwhichTWOreasonsdoesthespeakersaypeoplegiveupgoingtothegym?AlackoftimeBlossofco
ChooseTWOletters,A-E.WhichTWOtopicsdopeoplemostfrequentlyaskabout?Atheidealtemperaturesettingonthethermostat
Choosethecorrectletter,A,BorC.WhyisJilldoubtfulaboutrenewableenergy?
Accordingtothespeakers,whatfunctionhastapaplayedinthefollowingcountries?Writethecorrectletter,A,B,CorD,ne
Choosethecorrectletter,A,BorC.Andreathinksitisunlikelystudentswillpurchasethefurniturebecause
A、Therightsofprivatebusinessownersshouldbeprotected.B、Thegovernmentshouldn’tinterfereinprivatebusiness.C、Politic
Waterplantsprovidefoodformanyanimals,and______alsosupplyoxygentothewater.
Semipreciousstonesare______preciousstonessuchasdiamonds.
随机试题
某安装工程公司承包了一套燃油加热炉安装工程,包括加热炉、燃油供应系统、钢结构、工艺管道、电气动力与照明、自动控制、辅助系统等。燃油泵的进口管道焊缝要求100%射线检测,因阀门和法兰未到货,迟迟未能焊接。为了不影响单机试运行的进度要求,阀门和法兰到
下列选项中,防火间距确定的原则包括()。
第三方物流的调研属于()。
游戏理论“生长说”的代表人物有()等。
西周以后形成了以礼乐为中心的文武兼备的七艺教育。()
下列公文抄送行为,不符合规范的是()。
旨在培养具有爱国精神和国家意识的好公民的教育思潮是
下面哪一种对鸟的分配是可以接受的?第一笼第二笼展示下面哪一项列出了该养鸟者可以同时展出的两对鸟?
C语言规定,在一个C程序中,main()函数的位置()。
Youshouldspendabout20minutesonQuestions14-26,whicharebasedonReadingPassage2below.Whyareso
最新回复
(
0
)