首页
登录
职称英语
[originaltext] Everyone enjoys the seaside. Beaches are ideal places for ga
[originaltext] Everyone enjoys the seaside. Beaches are ideal places for ga
游客
2023-09-08
35
管理
问题
Everyone enjoys the seaside. Beaches are ideal places for games, sunbathing and swimming. (29)A warm sun, a clean sea and a sandy shore are most people’s idea of the perfect holiday setting But Beyond these sunny, warm, shallow shorelines lie the cold depths of the sea. Here below the surface, where the sun’s rays and light quickly fade away, is a place as hostile to men as the black depths of space. Every 33 feet Below the surface the pressure on every inch of the human body increases by I atmosphere. (30)Down to 33 feet the body, s subjected to the same pressure we endure in the upper world without even noticing it--14.7 pounds to the square inch. At 600 feet down in the sea the pressure exerted by that great volume of water is over 280 pounds per square inch. The wonderful thing is that the human body can survive such pressure without ill effects. But pressure is not the only problem. There is also the cold and the dark ness. As you have just heard, the sun’s rays only reach a short way down into the sea. The water temperature falls and the light dints to complete blackness as you go lower down.
The sea is not an empty space--it is full of life, some forms of which are dangerous to men. (31) Of course the east problem of all is breathing. Every breath of air you take must be pumped to you from above or carried with you in tanks. You must be extremely careful when you come up again from the depths in order to avoid the painful and often deadly disease known as "the bends". When a diver only breathes compressed air, nitrogen builds up in his blood stream.
选项
A、The pressure that people get.
B、The cold and darkness.
C、The greatest one is breathing.
D、The beach is not clean.
答案
C
解析
细节辨认题 。问题是关于大海对人类最有害的方面是什么。短文最后提到,Of course the greatest problem of all is breathing, 可知最大的危害是呼吸方面。所以本题正确答案选C项。
转载请注明原文地址:https://tihaiku.com/zcyy/2996819.html
相关试题推荐
[originaltext]Ifyou’vebeenoncampusforverylong,I’mcertainthatyo
[originaltext]Ifyou’vebeenoncampusforverylong,I’mcertainthatyo
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubr
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubr
[originaltext]M:Honey,thebasketballgameisabouttostart.Andcouldyoubr
[originaltext]M:Well,Amina,thanksforlettingmehaveyourdraftinsuchgoo
[originaltext]M:Well,Amina,thanksforlettingmehaveyourdraftinsuchgoo
[originaltext]M:Well,Amina,thanksforlettingmehaveyourdraftinsuchgoo
[originaltext]M:IwashopingthatwewouldseeGeorgeheretoday.W:Hewaspla
[originaltext]M:IwashopingthatwewouldseeGeorgeheretoday.W:Hewaspla
随机试题
Itisaknownfactthatphysicalactivityimprovesoverallhealth.Notonly
TherearemanytheoriesaboutthebeginningofdramainancientGreece.The
[originaltext]M:Shoppingforgiftsalwaysmakesmehungry!Whatdidyouhavei
A.骶髂关节炎 B.双手近端指间关节狭窄、骨质侵蚀 C.骨质呈虫噬样缺损
病原体侵入人体后引起疾病的主要因素是()A.机体的保护性免疫 B.机
以下关于买进看涨期权的损益说法正确的有()。 Ⅰ.当标的物市场价格小于执
《基础教育课程改革纲要(试行)》规定,我国中小学课程设置“综合实践活动”,开设的
结合实际说明教学中应如何培养学生的创造性。
施工机械、运输车辆的最外着力点与施工竖井边距离不得小于()。A.1.0m
发生在肝生物转化第二阶段A.葡糖醛酸结合反应 B.氧化反应 C.还原反应
最新回复
(
0
)