1.理解限制性定语从句和非限制性定语从句的概念、结构及区别。
2.能根据具体语境选择使用限制性定语从句或非限制性定语从句。
Step 1 感受新知
Ⅰ.找出下列句子的先行词和关系代词。
1.This gift was the Amber Room,which was given this name because several tons of amber were used to make it.
2.The amber which was selected had a beautiful yellow-brown colour like honey.
3.It was also a treasure decorated with gold and jewels,which took the country’s best artists about ten years to make.
4.However,the next King of Prussia,Frederick William Ⅰ,to whom the Amber Room belonged,decided not to keep it.
5.Later,Catherine Ⅱ had the Amber Room moved to a palace outside St Petersburg where she spent her summers.
