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
A、They gently touch the surface of water. B、They bend their tongues to drink water. C、They quickly accelerate their tongues. D、T
A、They gently touch the surface of water. B、They bend their tongues to drink water. C、They quickly accelerate their tongues. D、T
admin
2021-11-26
21
问题
Why is it that when dogs drink, water seems to go everywhere? When my dog drinks from her bowl, there is no question that water will end up on the floor. It looks like an unorganized way to get a good drink of water. Researchers at Virginia Tech University have been studying how dogs drink. They say dogs know exactly what they are doing. The animals are actually making precise movements at a high speed. This helps them get the fluid they need when they are thirsty. [20] It turns out that neither dogs, nor cats, have a full set of cheeks. This means they cannot suck water like humans or elephants and horses. Dogs lap, or take up the water with their tongues curled backward. As they lap, they move their tongues very quickly to build up momentum. That forces the water into a column and up into their mouths. The Virginia Tech researchers filmed 19 dogs of different sizes and breeds as they drank water. They created different laboratory models to measure tongue motion, and the amounts of water taken in. Using the data from these experiments, the researchers were able to make a model that shows how a dog drinks water. The researchers said that since the mouths of dogs and cats are structured nearly the same way, they thought they would drink water the same way, too. But here is a surprise. [21] The studies showed each family of animals has its own special drinking method. "We know cats and dogs are quite different in terms of behavior and character," said Sunghwan "Sunny" Jung, a study author and an associate professor of biomedical engineering and mechanics at Virginia Tech. "But before we did fundamental studies of how these animals drink fluids, our guess was dogs and cats drink about the same way. Instead we found out that dogs drink quite differently than cats," he said.
What is the difference? Dogs must quickly move their tongues down into the water using momentum to bring the water up and into their mouths. [22] Cats don’t bend their tongues to drink like dogs. Cats use less momentum and a more gentle action. They just skim, or barely touch, the surface of the water to drink it. "Cats tend to be viewed as neater, dogs are messier, but dogs really have to accelerate their tongues to make good use of the way the fluid column works," said researcher Sean Gart, a Virginia Tech graduate student. Their findings were published in the Proceedings of the National Academy of Sciences.
20. Why does the water seem to go everywhere when dogs drink?
21. What do we learn about animal’s drinking method?
22. How do cats drink water?
选项
A、They gently touch the surface of water.
B、They bend their tongues to drink water.
C、They quickly accelerate their tongues.
D、They don’t use their tongues to drink water.
答案
A
解析
录音提到,相比狗,猫喝水的动作更加温和,不需要剧烈的转动舌头,而是轻轻地点水(barely touch the surface of the water),A项复现该部分内容,为正确答案。猫和狗的喝水动作区别在于狗需要快速转动舌头,产生动能来把水喝进去,而猫则只是用舌尖轻轻地接触水面来喝水。B项“通过弯曲舌头喝水”和C项 “快速摆动舌头”都是描述狗的喝水方式,故排除。D项“它们不需要通过舌头喝水”与讲座内容不符,故排除。
转载请注明原文地址:https://jikaoti.com/ti/bKaFFFFM
0
大学英语六级
相关试题推荐
A、Magazinereporter.B、Fashiondesigner.C、Websitedesigner.D、Featureseditor.D事实细节题。对话一开始,男士就非常明确地介绍了女士的职业,说她是一名时尚杂志的专栏编辑。
IncreasedScreenTimeandWellbeingDeclineinYouthA)Haveyoungpeopleneverhaditsogood?Ordotheyfacemorechalleng
A、Higherprices.B、Moredemand.C、Lowerimportduties.D、Rapidgrowth.C细节辨认题。对话最后,女士明确指出,之所以家具的利润稍微高一点,是因为家具的关税低一些。因此答案为C)。
EffectiveFriday,ScreenActorsGuild-AmericanFederationofTelevisionandRadioArtists(SAG-AFTRA)hasdeclaredastrikeagai
A、Theyarebothworriedaboutthenegativeimpactoftechnology.B、Theydiffergreatlyintheirknowledgeofmoderntechnology.
DanielleSteel,the71-year-oldromancenovelistisnotoriouslyproductive,havingpublished179booksatarateofuptoseven
A、Biography.B、Nature.C、Philosophy.D、Beauty.B题干问的是男士真正感兴趣的是什么。对话中男士说他对自然的兴趣胜过对美学的兴趣,故答案为B(自然)。A项(传记)、C项(哲学)和D项(美学)均与对话内容不符,故排
A、Sheadvocatesanimalprotection.B、Shesellsaspecialkindofcoffee.C、Sheisgoingtostartacafechain.D、Sheistheowne
A、Stretchesoffarmland.B、TypicalEgyptiananimalfarms.C、Tombsofancientrulers.D、Ruinsleftbydevastatingfloods.C浏览四个选项
A、Theyareheldtwiceayear.B、Theywerefirstheldin1927.C、Theyaregivenforexcellenceinfilms.D、Theyarelessdesired
随机试题
下列关于火灾报警控制器火灾报警控制功能的描述中,错误的是()。
网织红细胞计数增高常在上消化道大量出血后何时出现
某甲采用黑客技术盗取某乙的社交网络账号、密码等信息。并将窃取到的相关数据存放在其租用的服务器中,并将盗取到某乙的个人信息等相关数据放在第三方网络交易平台上进行售卖,获利6000元。下列哪些地区的法院对本案具有管辖权?()
C建筑施工企业于2019年9月30日中标E县某酒店建设施工工程,并于10月7日签订《建设工程施工合同》。合同约定11月1日C公司进场施工,总工期270天。2020年6月1日,该项目部工人王某在物料运输过程中,为了抄近路违规进入起重机作业半径内。负
根据企业国有资产法律制度的规定,国有独资公司的下列人员中,由履行出资人职责的机构任免的有()。
以下说法正确的是()。
马航MH370航班失踪之后,国际海事卫星组织试图利用多普勒原理计算出失踪航班的下落。多普勒原理,源于这样一种物理现象(多普勒效应):随着飞机高速接近(或远离)接收微波信号的卫星,卫星所侦测到的微波频率就会越来越高(或越来越低)。下列描述的现象中,哪一种也体
下面的立体图形如果从任一面剖开,以下哪一项不可能是该立体图形的截面?
关系数据库管理系统能实现的专门关系运算包括
Theprocessby【C1】______ofwhichhumanbeingsarbitrarilymakecertainthingsstandforotherthingsmaybecalledthesymbolic
最新回复
(
0
)