There are some differences between British English and American English. In grammar, for example, speakers of British English say "in hospital" and "Have you a pen?". Americans say "in the hospital" and "Do you have a pen?". Pronunciation is sometimes different. For example, when a learner speaks British pronunciation[da:ns] (dance), he may not understand the American pronunciation[dæns]. There are differences between British English and American English in spelling. For example, "travelled" and "honour" are British spelling, "traveled" and "honor" are American spelling. However, in most situations(情况), British English and American English are not different languages.

    Can you imagine astronauts' everyday life in space? {#blank#}1{#/blank#}They do the same things as us, but they do them differently.

    {#blank#}2{#/blank#} Gravity(重力) holds the food down and keeps the water in the glass. But there is almost no gravity in space, so food can float(漂浮)away, and astronauts must eat and drink carefully.

    Sleeping is very different in space. {#blank#}3{#/blank#} They tie the bag to a wall so that they won't float away, and astronauts must eat and drink carefully.

    Exercise is very important in space. On earth, your legs carry your body, but in space, astronauts float. {#blank#}4{#/blank#} This is very bad for their legs, so they must exercise for thirty minutes every day.

    After a day's work, astronauts relax. They may listen to music, read, watch films, play games, or talk to their friends and families by radio.{#blank#}5{#/blank#}

A. So they do not use their legs often.

B It's very expensive to take food into space.

C. Sometimes they just enjoy floating in the air.

D. They also need to eat, sleep, exercise and relax.

E. On earth, we put food on a plate and water in a glass.

F. Astronauts have already visited the Moon and lived on space stations.

G. Some astronauts like to float in the air, but most like to be in a sleeping bag.

Four Funny Inventions

       ①        

    Are you a person who wants to know the time and temperature during the day? You might like Time Temp Glasses. These special glasses show the time above your right eye and a temperature above your left eye. It is surely easier than wearing a watch, and you never have to guess the temperature.

      ②        

    Do you eat too quickly? Do you eat too much? How can the Alarm Fork help you? Aren't you curious? Well, this special fork has two lights: one green and one red. When the green light is on, it's OK to take a bite of food. The fork "knows" when you take a bite, and soon the red light is on. Wait for the green light before you take another bite.

       ③        

    How do you know if your breath(呼气) smells nice or if it smells bad? It's difficult to know, because it's very hard to smell the air that comes out of your own mouth. Smell This is useful for this situation. Smell This covers your nose and your own mouth, so it is easy to smell the air that comes out of your mouth. Does your breath smell nice, or do you need a piece of gum?

       ④       

    Has this ever happened to you? You put a banana in your bag lunch in the morning and when you open the bag at noon, the banana looks like someone drove a car over it. If you put your banana in the Banana Suitcase, this will never happen. It keeps a banana safe, delicious and looking like a banana!