The world we live is full of amazing things. Do you know the following things? Chocolate tastes nice but it may make the little dog die. We may sleep for eight hours at a time but a snail (蜗牛) may sleep for three years. Our ears and nose become bigger when we grow up but eyes keep the same after a person is born. Food usually goes bad easily in summer but you don’t need to worry about how to keep honey (蜂蜜) because honey doesn’t go bad. Most animals will die soon without the head. But a cockroach (蟑螂) can live for nine or ten days without the head. Not all birds can fly. About forty kinds of birds can’t fly, like the penguin (企鹅) and the ostrich (鸵鸟). 小题1:________ Things Little dogs 小题2:________ is bad for them and they can’t eat it. A snail It may sleep for 小题3:_______ years, but we sleep小题4:_______ hours at a time. Our eyes The size of the eyes doesn’t小题5:________. Honey It doesn’t go 小题6:_______ at any time. 小题7:______ It can live for nine or ten小题8:________ without the 小题9:________. Birds Most birds are good at 小题10:________ but some can’t.