請將下面這段話翻譯成英文：

　　中國是茶的故鄉。據說早在五六千年前，中國就有了茶樹,而且有關茶樹的人類文明可以追溯到兩千年前。來自中國的 茶和絲綢、瓷器樣，在1000年前為世界所知，而且一 直是中國重要的出口產品。目前世界上40多個國家種植茶，其中亞 洲國家的產量占世界總產量的90%。其他國家的茶樹都直接或間接 地起源于中國。

　　參考翻譯：

　　China is the homeland of tea. It is believed that China has tea- shrubs as early as five to six thousand years ago，and human cultivation of teaplants can date back two thousand years. Tea from China，along with her silk and porcelain, began to be known the world over more than a thousand years ago and has since always been an important Chinese export. At present more than forty countries in the world grow tea with Asian countries producing 90% of the worlds total output. All tea trees in other countries have their origin directly or indirectly in China.