Period Three　Word power & Grammar and usage & Task

重点词汇

If I had taken an alternative path and studied medicine，I would have known a lot of medical knowledge.

如果我走上了另外一条道路去学医，我会知道很多医学知识。

(alternative adj.可供替代的 n．可供选择的事物

※an alternative to.........的替代品

have no alternative but to do sth.别无选择只好做某事

have the alternative of doing sth.有做某事的选择

There is no alternative but to do sth.别无选择只好做某事。

※alternatively adj.或者；两者择一地

(1)If you don't like the school lunch，you have the alternative of bringing your own.

(2)Try to arrange playtime for the children as an alternative to TV viewing.

(3)There were so many cars held up by the heavy rain on the road that we had no alternative but to wait (wait)．

[温馨提示]　"别无选择只好做......"的其他表达形式还有： have no choice but to do sth.；can't do sth.but do sth.；can do nothing but do sth.。在这些结构中若but之前出现实义动词do的某种形式(does，did，done)，but之后要用省略to的动词不定式。

[单项填空]

(4)China may as well keep its growth rate above 7 percent. ，the rate may be set between 6 and 7 percent，for the sake of a healthy environment.

A．Differently B．Alternatively

C．Accordingly D．Conversely