A2
Although + S + V, S + V · S + V, so + S + V
although, however, so, because
讲解
although 表示转折，放在从句开头。however 也表示转折，但放在【句子】开头，后面有逗号。so 表示结果，because 表示原因。 常见陷阱：中文常说“虽然……但是……”，前后两句都有连词；英语只能用一个：Although it was raining, but we went out ✗。
例句
Although it was raining, we went out.
虽然下雨，我们还是出去了。
It was expensive. However, I bought it.
它很贵。不过，我还是买了。
I was tired, so I went to bed.
我累了，所以去睡觉了。
She stayed home because she was sick.
她因为生病待在家里。
练习
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高效学习“Although + S + V, S + V · S + V, so + S + V”
语法点“Although + S + V, S + V · S + V, so + S + V”（although, however, so, because）是 CEFR 2 级别的重要结构之一。要熟练运用这个结构，你需要弄清楚它的使用语境，并经常练习。
学习小贴士：把例句大声朗读多遍，培养自然的语感反应。然后试着结合自己的生活情境造句。用发音按钮听标准发音并跟着练习。
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