问题描述：
Three afternoons a week,she has activities after school and by the time she gets home,homework is the last thing she feels like doing.
啥意思?给讲一下句型.
问题解答：
我来补答
Three afternoons a week 一周有三个下午的时间（状语）
第一句
she has activities after school
and连词（连接两个并列句子）
第二句
by the time she gets home,homework is the last thing she feels like doing.
by the time 连接时间状语从句,表示“到……的时候”
she gets home从句
homework is the last thing she feels like doing主句（定语从句）
定语从句分析：
homework is the last thing（that） she feels like doing 修饰词作do宾语,连接词that省略
homework is the last thing 主句
she feels like doing从句
翻译：
她每周有三个下午的时间可以在放学后参加活动,到回到家的时候,做作业是她最后一件想做的事.
feel like doing 想要做某事
如果仍有不懂的可以继续追问我
