2. surely adv. 确实

1. recognize / recognise v. 认出；识别

7. Fasten a key to the end of the long string.

　　 ☆重点词汇☆

6. The money would be better spent building more roads or railways in other parts of China.

5. It was worth five hundred francs at most.

4. Pierre and I did have a good time at the ball.

3. I would rather not tell you.

2. It is dangerous or bad for your health.

1. There is no doubt that ...

22.(2006江苏)设a为实数，设函数的最大值为g(a)。

　(Ⅰ)设t＝，求t的取值范围，并把f(x)表示为t的函数m(t)； (Ⅱ)求g(a)的表达式。