重点讲解：
1. look forward to sth./doing sth. 期待；盼望；
例句：I have long been looking forward to meeting you.
我一直盼望有机会同你见面。
2. why not （表示同意别人的建议）为什么不呢，好，行；
例句：'Shall I tell them about poor Mrs Blair?'—'Why not?'
“我应该告诉他们可怜的布莱尔太太的情况吗？”——“为什么不呢？”
3. belong to 属于；归…所有；
例句：Don't take things that do not belong to you.
不要拿不属于你的东西。
4. look for 找；寻；
例句：As the tide receded we were able to look for shells.
潮水退去，我们就能寻找贝壳了。