重点讲解：
1. be going to do sth.
想要（做…）；决定（做…）；
eg. I'm going to go to bed.
我要睡觉了Z3oySirUcqt。
eg. He announced that he's going to resign.
他宣布他即将辞职75j9f&]bsx。
eg. I was not going to compromise.
我决不妥协dD0gw(nKOq)3,9uT。
2. for example
例如；比如；
eg. A few simple precautions can be taken, for example ensuring that desks are the right height.
可以采取一些简单的预防措施，比如确保桌子的高度合适U3k!7E)mq!yS。
eg. Many great men have risen from poverty---Lincoln, for example.
许多伟人从贫困中崛起，例如林肯,&S945;qPLQE。
eg. There are many sources of air pollution; exhaust fumes, for example.
空气污染有许多来源，例如废气PM,o*Sq9zxMpU+80。