题目

第Ⅱ卷（共45分） 第四部分  写作（共两节，满分45分） 阅读表达  阅读下面的短文并回答问题。（每题3分，共15分） The flag, the most common symbol(象征)of a nation in the modern world, is also one of the most ancient. With a clear symbolic meaning, the flag in the traditional form is still used today to mark buildings, ships and other vehicles related to a country. The national flag as we know it today is in no way a primitive(原始的)artifact(人工制品). It is, rather the product of thousands of years’development. Historians believe that it 已知tanα＝3，求下列各式的值． (1)sinα·cosα；　　(2)sinα＋cosα； (3)＋；　　(4)sin6α＋cos6α．