文档介绍：use的用法简单归纳如下:
1. used to do "过去常常做某事",它表示过去经常发生的动作或存在的状态,而现在已不再发生或存在。这个短语含有今昔对比之意,其否定形式常用used not to或didn't use to。反意疑问句中应该用did/didn't或used/usedn't。例如:
I used to swim in this river when I was 。
They used to be good friends, didn't they?他们过去是好朋友,是吗?
2. be used to sth. / doing "****惯、适应某事/做某事",它表示****惯于某一客观事实或状态,其中to是介词,后面跟名词、代词或动名词;be used可用于多种时态;e替换be。例如:
Old people are used to getting up early in the 。
I wasn't used to city life, but now I have got used to living in this ,但现在我已****惯住在这座城市了。
3.
be used to do "被用来做某事",其中use表"使用"之意,是被动语态形式,to是动词不定式符号。例如:
Wood can be used to make 。
4. be used for...意为"被当做……",其中use表"使用"之意,是被动语态形式。例如:
The seal's fur can be used for 。
5. be