A. Detoxicating the acorn. There are generally two kinds of acorn in the world, and both of them taste bitter. I have read a book named " guns, germs and steel", which tell me that acorn had never been domesticated by human. By smashing the acorn and sifting them in the water, you can easely get rid of the toxin from the acorm. Amazing, isn't it! B. The chestnut tree was introduced into England in Rome times. C. Ray and professor Gordon produced juice from the berries by hand! Sounds disgusting? Indeed. The juice can be put under the Sun and turned into a jelly. Yummy. They can be preserved for three years and are still tastey and sweety. D. How to cook food without pots. This time Ray asked a woman called Linda. She makes basket with straws and strings for 12 years. They first burn the rocks in a fire, then put the rocks into the acorn, smart ,isn't it? It would never occur to me.Maybe 6000 years ago, British housewives used the same method to serve their families. E. Hunting for mushrooms How can u tell a harmless fungi from a toxic one? Well, the courful , gilled fungi with tiny spores are usually toxic. The bases of the stem are bulb.戈登教授的口音好重啊，有的地方听不太明白。
