首页
登录
职称英语
Another thing an astronaut has to learn about is eating in space. Food is we
Another thing an astronaut has to learn about is eating in space. Food is we
游客
2025-03-03
10
管理
问题
Another thing an astronaut has to learn about is eating in space. Food is weightless, just as men are. Food for space has to be packed in special ways. Some of it goes into tubes that a man can squeeze into his mouth. Bite-sized cookies are packed in plastic.
There is a good reason for covering each bite. The plastic keeps pieces of food from travelling in the spaceship. On the earth very small pieces of food would simply fall to the floor. But gravity doesn’t pull them to the floor when they are out of the plastic in a spaceship. They move here and there and can get into a man’s eyes or into the spaceship’s instruments. If any of the instruments is blocked, the astronauts may have trouble getting safely home.
As astronauts travel on longer space trips, he must take time to sleep. An astronaut can fit himself to his seat with a kind of seat belt. Or, if he wants to, he can sleep in a sleeping bag which is fixed in place under his seat. But be careful he must put his hands under the belt when he goes to sleep. This is because he is really afraid that he might touch one of controls that isn’t supposed to be touched until later. [br] Why does an astronaut put his hand under his belt when he sleeps?
选项
A、Because he thinks it is comfortable to sleep in that way in space.
B、Because he doesn’t want to touch any controls when he sleeps.
C、Because the instruments of the spaceship are easily broken.
D、Because he is afraid that the seat will move.
答案
B
解析
细节题。根据文章最后一段最后两句“But be careful he must put his hands under the belt when he goes to sleep.This is because he is really afraid that he might touch one of controls that isn’t supposed to be touched until later.”可知,为了防止在睡眠中不小心触碰到飞船上的控制键,宇航员睡觉的时候要将双手放在安全带下。故选B。
转载请注明原文地址:https://tihaiku.com/zcyy/3981398.html
相关试题推荐
Tom:Iseeinthepaperthey’resendingmoreequipmenttospace.Andwemightha
Hehasmadeanotherwonderfuldiscovery,________ofgreatimportancetosciencea
SpeakerA:Wouldyoucareforanotherhelping(还要再吃点东西吗)?SpeakerB:________A、I
JohnlikesChinesefood,buthe________eatingwithchopsticks.A、isusedtoB、use
Anotherthinganastronauthastolearnaboutiseatinginspace.Foodiswe
Anotherthinganastronauthastolearnaboutiseatinginspace.Foodiswe
Anotherthinganastronauthastolearnaboutiseatinginspace.Foodiswe
Peopleshouldwashfruit______withchemicalsbeforeeatingit.A、coveredB、cover
Caneatingachocolatebareverydayreallypreventage-relatedmemoryloss?
Caneatingachocolatebareverydayreallypreventage-relatedmemoryloss?
随机试题
Musiccomesinmanyforms:mostcountrieshaveastyleoftheirown.Atthe
Manypeoplebelievetheglarefromsnowcausessnowblindness.Yet,darkglas
HowtoBuildaStrongTeamSpirit1.Threeprinciplestobuildingateam■Teamw
[originaltext]Forthreegroupsofexplorersformedbycollegestudentsand
关于肾性骨营养不良的早期诊断,下列哪项最有价值:A.骨X线片 B.骨活检
Newbornbabiescandiscriminatebetween
公安赔偿是一种刑事赔偿。( )
下列有关氧化磷酸化的叙述,错误的是A.物质在氧化时伴有ADP磷酸化生成ATP
水利水电工程施工中常用土的工程分类,依开挖方法、开挖难易程度等,可分为()类。
建筑施工企业与物资供应企业就某建筑材料的供应签订合同,如该建筑材料不属于国家定价
最新回复
(
0
)