知识拓展
1、go bad 变坏类似的：go wrong,go mad,etc.
go 通常表示不好的变化。
Alice’s face went red with anger.
My husband’s hair is going gray.
“go+doing”表示“去干某事”，多指从事与体育、娱乐有关的活动。
go fishing 去钓鱼
go riding去骑马
go boating 去划船
go climbing去登山
go swimming去游泳
go shooting去射击
go walking 去散步
go hunting去打猎
go shopping去买东西
go cycling去骑车
go dancing去跳舞
go camping 去露营
“go+doing”还可以表示从事某种职业。
go farming务农
go nursing当护士
2、go on doing / go on to do / go on with
go on doing sth .指继续做同一件事。
如：
After a short rest , they went on working.
短暂休息之后，他们继续工作。
go on with sth . 指继续同一件事，此时with 后能接名词，代词，不能跟ing 形式。
如:
After a short rest ,they went on with the work .
短暂休息之年，他们继续那项工作。
go on to do sth . 指接着做另外一件事。
如：
After finishing the words , they went on to go over the text.
结束单词后，他们接着通课文。