module 1 life in the future
explanations for new words and phrases
1、alternative： 导学p2-1
adj. (二者当中) 选其一的；非此即彼的；替换的，供选择的，其他的，两者选一的。无比较级形式。
alternative energy替代性能源 alternative ways可供选择的方法
wind power and hydro power are two main alternative energy in the west of
they had an alternative plan. we returned by an alternative road.
do you have an alternative solution to the problem? 你有没有别的办法来解决这个问题？
the road was blocked, so we went by an alternative road. 这条路被封锁了，因此我们走了另一条路。
n. [c] (二者当中) 选一个；供选择的东西。 have no alternative but to do = have no choice but to do
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