[课 堂 检 测]
Ⅰ.用所给词的适当形式填空
1．________ (advance)lights，motors，and building designs have helped save a lot of energy and therefore prevented pollution.
2．What do you think about the ________ (surround) ecosystem?
3．The ________ (protect)of the environment is one of the basic state policies of the Chinese government.
4．The manager arranged for someone________ (drive)him home.
