二、课内合作探究
I、考点导练
一、根据下列各句句意及所给单词的首字母或汉语提示，写出该单词的正确形式。（每空限填一词）
1. We must take effective measures to protect limited natural r________．
2. It will be a long time before everything returns to n________．
3.The company has been t________ from a family business to a multi-million-pound operation.
4. She went to Paris with the i_______ to learn French.
