Ⅰ. 选词填空
by coincidence, on the other hand, concentrate on, break away from, a great deal, for one thing
1. They broke away from the national union and set up their own local organization.
2. By coincidence, I met my favorite pop star at the airport yesterday.
3. Nuclear power is relatively cheap. On the other hand, you could argue that it’s not safe.
4. To make more money, we must concentrate on developing our foreign trade.
5. It was said that she had been married to a man a great deal older than her.
6. For one thing, she is well educated; for another, she is pretty.