Going to outer space is a little like going camping. Food with all the water dried out is lightweight and doesn't spoil (变坏). So, many space foods are dried on Earth and stored in special packets. .
On Earth, gravity is the force that keeps your feet on the ground and your sandwich on your plate. To keep food from floating (漂浮) away, astronauts on the Space Shuttle attach the packets to a special tray (托盘). The tray can be fixed to a wall or to the astronaut's lap. To prepare their food, astronauts use liquid forms of salt and pepper. The liquid sticks to the food better. Regular salt and pepper would float away, maybe up an astronaut's nose.
So astronauts drink everything from a small bag with a straw (吸管) that can be closed. Astronauts say that most space foods taste pretty good.
Some, such as apples and pudding, are the same as the foods you eat on Earth. Astronauts eat tortillas instead of bread because they make fewer crumbs (碎屑). Your body uses food in space the same way it does on Earth. Your body must deal with waste in space too.
During take-off and landing, astronauts can't leave their seats to go to the bathroom. They wear diapers (尿布) under their spacesuits instead. The Space Shuttle has a bathroom the size of a small closet. The toilet has bars that keep astronauts from floating away. .
A. Liquids float right out of cups and glasses, though.
B. But there's no gravity in space.
C. In outer space, everything seems to be different.
D. Rubbish from daily life can not be thrown everywhere.
E. Some, such as dried pears, taste good right out of the packet.
F. Floating crumbs could get stuck in equipment or an astronaut's eye.
G. A strong flow of air is used instead of water to flush waste down the toilet.
