根据文中:Astronautsexerciseonbikesandothermachinesforabouttwohourseveryday.Inthatway,theycanstillbehealthywhentheygetbacktotheearth.(宇航员每天在自行车和其他机器上锻炼大约两个小时。这样,当他们回到地球时,仍然可以保持健康。)可知,宇航员在太空中骑自行车和其他机器锻炼,这样他们才能健康。故选C。
NASA/JPL-Caltech/MSSS NASA has big goals for Mars. It wants to collect thefirst-ever samplesfrom the Martian surface and deliver them back to Earth in an ambitious mission called Mars Sample Return. But even in its development phase, the mission hasrun into problems. With a ballooning budg...
What can astronauts do for fun in space?(3). What will happen easily if astronauts don't exercise in space when they get back home?(4). How long do astronauts exercise every day in space?(5). What will happen if astronauts don't tie themselves to the beds in space?(...
1. Life in space is much different from life on the earth. How do astronauts live in space? 2. In the past, astronauts could eat only small pieces of dried food. But now astronauts are able to eat more everyday food like fruit, vegetables and ice-cream. 3.All the people in the IS...
根据“Astronauts exercise on bikes and other machines(机器) for about two hours every day.”可知。故选B。【小题3】C细节理解题。根据“Astronauts exercise on bikes and other machines(机器) for about two hours every day. That way, they can still be healthy when they get back home.”可知。
66.A.细节题,结合最后Many people think their lives are very interesting and their dream jobs are to be the astronauts.可知是有趣的,故选A.67.D.标题判断题.结合第一段Life in space is much different from life on earth.How do astronauts live in space?是介绍宇航员的生活,故选D. 本文是介绍...
Thatseems like a hard way to sleep, but astronauts say sleeping in space3. Astronauts exercise foris really not too bad.every day.ExercisingThis is more important in space than on earth. Astronauts4. When astronauts get back home theyexercise on bikes and other machines for about two hours ...
Eating.In the past,astronauts could eat only small pieces of dried food.But now astronauts are able to eat(1) ___ (much) everyday food like fruit,vegetables and ice cream. Sleeping.All the people in the ISS(国际空间站)have their own rooms.They have to tie (2) ___ (them)to thei...
That seems like a (B)way to sleep,but astronauts say sleeping in space is really not too bad. Exercising This is more important in space than on earth.Astronauts exercise on bikes and other machines for about two hours every day.That way,they can still be healthy when they get back ...
(5). What will happen easily if astronauts don't exercise in space when they get back home? ___ (6). How long do astronauts exercise every day in space? ___ 相关知识点: 试题来源: 解析 (1).【答案】 It is fun to live in space! 【解析】 从短文中可以知道,在太空生活太有趣...