(1)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's no alternative ... ......别无选择

　　an alternative to ... ......的替代品

　　(2)alternatively adv. 可供选择地

　　①The way was blocked, so we went by an alternative road.

　　这条路被挡住了，因此我们走了另一条路。

　　②There were so many cars held up by the heavy rain on the road that we had no alternative but to_wait (wait)．

　　路上被大雨堵的车太多了，我们只好等待别无选择。

　　③If you don't like the school lunch, you have the alternative of bringing your own.

　　要是你不喜欢学校准备的午餐，你可以自己带饭。

　　[名师点津]　(1)alternative通常指两者之间的选择，而choice则指一般意义上的选择。

　　(2)"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.等。在这些结构中若but之前出现实义动词do的某种形式，but之后要用省略to的不定式，否则，but之后的to不能省略。

　　2．(教材P37)Did they suffer from cold, starvation or disease?

　　他们遭受过寒冷、饥饿或疾病的痛苦吗？

　　suffer from 忍受；遭受(疾病、痛苦、困难等)

　　①Many people in this area are suffering from hunger and cold.

　　该地区有很多人挨饿受冻。

　　[辨析比较]　suffer from, suffer

suffer(vi.) from 通常表示"遭受战争、自然灾害所带来的苦难"及"患病"之意。suffer from a war/the flood/a headache"遭受战争/洪水/头疼" suffer(vt.) 意为"遭受痛苦、损失；忍受侮辱"等，其宾语通常是pain, loss, punishment, disappointment等 　　

　　选用上述词语填空

　　②He's been suffering_from cancer for two years.

　　他得癌症已经两年了。

　　③She's suffering a lot of pain.

她遭受着巨大的痛苦。