首页
登录
职称英语
Most people associate tears with people who are crying because they are up
Most people associate tears with people who are crying because they are up
游客
2024-08-19
40
管理
问题
Most people associate tears with people who are crying because they are upset, angry or extremely happy, but there are actually three different kinds of tears.
Firstly there are basal tears.These are tears regularly produced by the tear glands which are above your eyes, under the eyelids and protect the eyes by keeping them clean and wet.Basal tears are spread evenly over the eye by blinking.They are made up of a mixture of water, oil and mucus (粘液).
But there are other tears which have no connection with emotions either.These tears also protect the eyes.So how are they different? The second kind of tears are called reflex tears and their job is to wash out.foreign objects that come into contact with the eye—when an eyelash or an insect gets stuck in your eye, for example.Reflex tears can also be caused by the smell of onions or smoke, which contain chemicals and tiny particles.In addition, cold air or wind, which dries out the eyes, causes the tear glands to produce reflex tears.In English we often say our eyes are "watering" when this happens.
And then there are "real" tears—emotional tears.They are produced by emotional stress or pain and have been found to contain more hormones than other types of tears.Most mammals produce basal or reflex tears, but we humans produce emotional tears.
Emotional tears and reflex tears also come from the tear glands.Some of the tears drain away through the tear ducts in the corner of your eyes.But when too many tears are produced, they roll down your face.Your tear ducts are also connected to your nose, which is why tears sometimes run down into it.Both reflex tears and emotional tears are more watery than basal tears.
What, is the function of emotional tears? Studies indicate that our bodies use them as a way of re-establishing balance of the nervous system.They are a way for us to calm down after a period of stress.Research across cultures also indicates that emotional tears help people to establish a bond with people they care for.Tears express vulnerability and most people react with sympathy to tears.
[br]
选项
答案
foreign objects
解析
文章第三段第四句提到,第二种眼泪是反射性眼泪,其作用是冲洗掉接触到眼睛的异物。故填入“foreign objects”。
转载请注明原文地址:https://tihaiku.com/zcyy/3727209.html
相关试题推荐
Mostpeopleassociatetearswithpeoplewhoarecryingbecausetheyareup
Mostpeopleassociatetearswithpeoplewhoarecryingbecausetheyareup
Mostpeopleassociatetearswithpeoplewhoarecryingbecausetheyareup
Peopledidn’tusetothrowthingsaway.Weusedtomendourclothesandweusedt
Peopledidn’tusetothrowthingsaway.Weusedtomendourclothesandweusedt
Peopledidn’tusetothrowthingsaway.Weusedtomendourclothesandweusedt
Peopledidn’tusetothrowthingsaway.Weusedtomendourclothesandweusedt
Peopledidn’tusetothrowthingsaway.Weusedtomendourclothesandweusedt
Peopledidn’tusetothrowthingsaway.Weusedtomendourclothesandweusedt
AskpeopletolisttheUnitedStatespresidents.Mostpeoplewillremembe
随机试题
AstheworldexcitedlygreetedSnuppy,thefirstcloned(克隆)dog,commentators
America’smostpopularnewspaperwebsitetodayannouncedthattheeraoffre
脑膜炎双球菌为A.严格需氧的革兰阳性球菌 B.厌氧的革兰阴性球菌 C.严格需
如图所示,一半径为R的带电塑料圆盘,其中有一半径为r的阴影部分均匀带正电荷,面电
房地产投资的风险主要体现在( )四个方面。A.投入资金的安全性 B.相关政策
下列不属于自动喷水灭火系统喷头外观标志检查的是()。A.边墙型喷头上有水流方向
关于危害公共安全罪的认定,下列哪一选项是正确的? A.猎户甲合法持有猎
【背景资料】 某碾压土石坝工程,总库容为5260万m3,左岸设有开敞式溢洪
混凝土实体检验的主要检验项目是()。A.混凝土强度 B.钢筋保护层厚度 C.
施工质量保证计划内容包括:明确质量目标以及()。A、确定组织机构 B、质量管
最新回复
(
0
)