作业帮I have been teaching English in China for 5 years 与I have taught English in China for 5 yearsI have been teaching English in China for 5 years I have taught English in China for 5 years分别
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I have been teaching English in China for 5 years 与I have taught English in China for 5 yearsI have been teaching English in China for 5 years I have taught English in China for 5 years分别
I have been teaching English in China for 5 years 与I have taught English in China for 5 years
I have been teaching English in China for 5 years
I have taught English in China for 5 years
分别
I have been teaching English in China for 5 years 与I have taught English in China for 5 yearsI have been teaching English in China for 5 years I have taught English in China for 5 years分别
第一句 还在做
第二句 已完成 不再做了
第一句表示我在中国连续教了5年英语，没有其他的职业。
第二句表示我在中国教了五年英语，但是中间可能做过其他 事情，不是五年一直都是教英语。
现在完成进行时并不总是具有临时的性质，如：
My mother has been teaching English for twenty years．（a）
My mother has taught English for twenty years.（b）
（a）句在此并无临时性质，但较口语化。（b）句则较为正式。又（a）句表示动作现在仍在继续．并将延续下去，（b）句的动作...
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现在完成进行时并不总是具有临时的性质，如：
My mother has been teaching English for twenty years．（a）
My mother has taught English for twenty years.（b）
（a）句在此并无临时性质，但较口语化。（b）句则较为正式。又（a）句表示动作现在仍在继续．并将延续下去，（b）句的动作是否延续下去，须由上下文决定，但在一般情况下都是延续下去的。
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I have been teaching English in China for 5 years .
我已经在中国教了5年的英语，现在还在教。
I have taught English in China for 5 years.
我已经在中国教了5年的英语，现在不在中国教了，或现在不教了。
been teaching表明这五年是持续性的在教书，后者是教学5年，中间可能有间断。