This is a photo i took during my trip to japen这话是新概念上面的意思是：这是我到日本旅行时拍的照片.那个TOOK不是take的过去式吗,在这句话为什么要有它呢?TOOK在这里是不是去的意思呢?i shaved it off when i came home.意思是我回到家就把它（胡子）刮掉了.请问 when干嘛会出现呢,
问题描述：
This is a photo i took during my trip to japen
这话是新概念上面的意思是：这是我到日本旅行时拍的照片.那个TOOK不是take的过去式吗,在这句话为什么要有它呢?TOOK在这里是不是去的意思呢?
i shaved it off when i came home.意思是我回到家就把它（胡子）刮掉了.请问 when干嘛会出现呢,
答
第一题,i took 属于修饰photo的定语,强调照片是我拍的,有短语take photo ,是定语从句,就是去掉他句子也通的…第二题,when 及其后面都是壮语,若没when.两个句子不能并列存在,强调在我回家时,等上高中你就知道了