牛津译林版（2020）必修第一册 Unit4语法课件

答辩时间：20XX/05/20 Restrictive relative clauses with relative adverbs Unit 4 Grammar and usage when 选题意义 1. when指时间，在定语从句中做时间状语 (从句中不缺主干成分)，不可省略。 I still remember the day when I first came to the school. There are times when I wonder why I do this job. The last time I went to Scotland was in May when the weather was beautiful. This was the moment when Neil Armstrong became the first man to step on the Moon. where 选题意义 2. where指地点，在定语从句中做地点状语 (从句中不缺主干成分)，不可省略。 Shanghai is the city where I was born. The house where I lived ten years ago has been pulled down. The lab where chemists and physicists often do experiments there is not far from here. It’s one of the few countries where people drive on the left. why 选题意义 2. why指地点，在定语从句中做原因状语 (从句中不缺主干成分)，先行词通常为reason，不可省略。 I don’t know the reason why he looks unhappy today. There is no earthly reason why they should ever change. The reason why the injection needs repeating every year is that the virus changes. 注意：当先行词为reason时，引导词并非都用why. T