题目

How to Prepare a Lecture Being invited to give a lecture is an honor.It means that people regard you as an authority on a given field，subject，or issue.It means you are worth listening to.__16__   You have to make sure your lecture is interesting，and full of wisdom，from which the audience can take valuable insights.This is why it is important for you to prepare your lecture well. 1.Think of a good topic. You most likely will be assigned to talk about a certain topic.If that's the case，you only need to make an outline and do some research.But in some cases，you will have to thMr Smith used to smoke　　 ,but he has given it up. A.seriously　　　　　B.heavily　　　　C.badly　　　　D.hardly