阅读理解。

　　Good evening,ladies and gentlemen．Welcome to the nine o'clock Mystery Hour．Today we'll show you two British stories．We hope you'll enjoy them．

　　About 900 years ago two green children arrived in a small village in South England．Their eyes and skin were green and they spoke a strange language．They were very tired and weak,so the people of the village looked after them．The boy died a year later．but the girl grew strong and lived the rest of her life there．And her skin colour turned back to normal day by day．Scientists say that sometimes if people don't have enough food to eat for a long time．their skin goes very pale and can even turn green．

　　Loch Ness is the largest lake in Scotland．It's a very deep and cold lake．For hundreds of years．people have talked about a monster(怪物)called Nessie which lives in the lake．About seventy years ago．two people saw something moving in the lake．They said that the animal was playing and rolling around in the water：Since then many people say they have seen the monster．Their descriptions are always the same．It looks like a dinosaur．with a very long neck and a small head．It has a big bump(包,肿块)on its back．People have tried to photograph the animal,but the pictures have not been very clear．Scientists don't know whether there is a monster or not．Some say it may be a whale or a very large fish．Some think it's a snake．Others say there's nothing at all-nothing but people's imagination．Maybe we'll never know what's in loch Ness．

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