【预讲练结】人教选修七Unit 4 Sharing总结
词汇详解：
1. hear from sb.收到某人的来信，
相当于receive one’s letter。
Have you heard from your brother? 你收到你哥哥的信了吗？
I heard from my sister in New York yesterday.
我昨天收到了在纽约的姐姐的来信。
I look forward to hearing from you. 盼望着收到你的信。
hear of/about 听说
She disappeared and was never heard of again.
她消失了，再也没人听到过她的消息。
I was sorry to hear about your accident.
获悉你遇到意外，我很难过。
2. For sure 确定； 肯定
