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
2024-01-16
32
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/3366836.html
相关试题推荐
Whatyou’realwaysheard?We’reeatingwaytoomuchsalt.TheaverageAmer
Whatyou’realwaysheard?We’reeatingwaytoomuchsalt.TheaverageAmer
Whatyou’realwaysheard?We’reeatingwaytoomuchsalt.TheaverageAmer
Whatyou’realwaysheard?We’reeatingwaytoomuchsalt.TheaverageAmer
Anotherthinganastronauthastolearnaboutiseatinginspace.Foodiswe
Anotherthinganastronauthastolearnaboutiseatinginspace.Foodiswe
Anotherthinganastronauthastolearnaboutiseatinginspace.Foodiswe
Onecarwenttoofastand______missedhittinganothercar.A、completelyB、greatly
Thislightbulbdoesn’twork.Canyou______itbyanotherone?A、substituteB、repl
Somecountriesarecreatingpoliciestodealwiththegrowinge-wasteproblem.有一
随机试题
1 Divorceisoneofthosecreations,likefastfoodandliterock.thathavemo
Wheredoesthisconversationprobablytakeplace?[br][originaltext]M:Thisis
Wearenotshortofrawmaterialsatthemoment,butweneedreliable(equip)____
试述杂志传播的优点和弱点。
在施工中块体大小必须与混凝土制备、运输和浇筑的生产能力相适应,即要保证在混凝土初
经验主义课程理论流派的主要代表人物是( )。A.斯宾塞 B.杜威 C.赫钦
下列历史人物中,存在师生关系的有( )个。 ①苏轼——秦观②孔子——曾子③李
基础心理学是研究()。 (A)正常成人心理现象的心理学基础学科 (B
(2015年真题)静脉注射青霉素的适宜溶媒是( )。A.0.9氯化钠注射液
集体劳权不包括( )A.劳动报酬权 B.集体谈判权 C.民主参与权 D.
最新回复
(
0
)