1. 选词填空

take action, in the face of, by contrast, come one's way, be based on,  compared to, devote oneself to, focus on, put off, weigh up

1. （1） No one expects the accident to happen, so we must to prevent it.
3. （2） We must strengthen our unity so many difficulties.
5. （3） An opportunity because I was motivated and didn't give up.
7. （4） Successful studies good learning methods and habits.
9. （5） Optimism, , can make you happy, healthy and successful.
11. （6） developing countries, developed countries consume more energy.
13. （7） He has agriculture education and research ever since.
15. （8） In the US, most people creative thinking skills.
17. （9） I called to tell you that if it should rain tomorrow, we would (推迟) the sports meeting.
19. （10） I think we should (权衡) the situation carefully before doing it.