关于help sb do sth与help sb doing sth
一、关于 help sb do sth
help sb do sth是大家比较熟悉的结构，通常也可说成help sb to do sth，其意为 “帮助某人做某事”，两者常可通用——即其中的不定式符号to可以省略，也可以保留。如：
We helped her (to) find her things. 我们帮她找东西。
I helped him (to) repair his bike. 我帮他修自行车。
Mother helped me (to) do my homework. 妈妈帮助我做家庭作业。
Will you help me (to) choose myself a new coat? 请你帮我选件新大衣好吗？
Can anyone help me (to) fill in this tax form? 有谁能帮我填写税单吗?
When she fell, a friend rushed to help her (to) get up. 她摔倒时，一个朋友冲上前把她扶起来。
二、关于 help sb doing sth
help sb doing sth 也是正确的表达，它也表示帮助某人做某事，可视为 help sb in doing sth 省略介词 in 得来。如：
I need contacts that could help in finding a job. 我需要能帮我找到工作的社会关系。
He helped her carrying her shopping home. 他帮她把买的东西提回家。