1．地点状语从句。
地点状语从句多由where或wherever引起：winters were very long where he lived．在他住的地方冬天很长。
i’m standing where the brook and the river meet．我站在小溪与大河汇合处。he left the camera where it was．他把相机留在原来的地方。
wherever he went，he took her with him．不管他到**，他都带着她。sleep wherever yon like．你高兴在**睡就在**睡。you can sit anywhere you like．你爱坐哪就坐哪儿。
everywhere i go，i find the same result．不管我到**我都得到同样的结果。2．原因状语从句：
原因状语从句多由because，as，since，seeing(that)，considering that等连词引起：
you only do it because you h**e to．你这样做只是因为不得不如此。
as he had been up since 4 was very tired．由于他清晨四点就起床了，他十分疲倦。he can’t come with us since he’s ill.由于生病他不能和我们一道去。
stay in bed longer today，seeing that you were late last night.昨夜你睡得晚，你今天多睡一会儿。
considering he’s only been learning english a year he speaks it verywell.
考虑他学英语才一年，他英语是讲得很好的。
now that you h**e the chance you had better **ail yourself of it.既然你现在有了机会，你最好加以利用。下面这类句子中的从句也表示原因：
i’m glad that you are all safe．我很高兴你们都安然无恙。i’m proud that you had the thought．你有这个想法我感到骄傲。
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