2013中考英语备考：V-ing形式的固定搭配(必背重点)
V-ing形式常常用于下列固定搭配中：be busy (in) doing sth. (忙于做某事)，spend some time (in) doing sth. (花费时间做某事)，stop / prevent sb. from doing sth. (阻止某人做某事)，feel like doing sth.(意欲做某事)，can’t help doing sth.(禁不住做某事)，have fun doing sth.(很高兴做某事)，have difficulty (in) doing...