1、 I often help my mom with housework on weekends.
我经常在周末帮妈妈做家务。（重点：固定搭配，with后接名词，表“帮助某人做某事”，区分help sb with sth与help sb (to) do sth的用法。）
来源:【中考难度例句】蜂词侠编辑整理
2、 He helped his classmate with his math homework because his classmate was ill.
因为同学生病了，他帮同学辅导数学作业。（重点：一般过去时用法，because引导原因状语从句，help sb with sth的搭配及不定式省略to的语法规则。）
来源:【高考难度例句】蜂词侠编辑整理
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