重点讲解：
1. be full of
有大量…的；满是…的；
eg. The house was large and full of art treasures.
房子很大，里面摆满了艺术珍品。
eg. The book is full of amusing sidelights on his family background.
书中有很多关于他家庭背景的趣闻。
2. lots of
许多；很多；大量；
eg. He drank lots of milk.
他喝了很多牛奶。
eg. You see studs on lots of London front doors.
在伦敦，你能看到许多人家的大门上都装有饰钉。
3. a group of
（一）组；（一）群；（一）批；
eg. They were a group of early navigators.
他们是一群早期的航海家。
eg. Psychologists tested a group of six-year-olds with a video.
心理学家用一段录像对一组6岁的儿童进行了测试。
