that old man has fallen down and hurt himself为什么用完成时不用一般过去时

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That old man fell down and hurt himself语法上也是正确的,但是表达的意思不同,需要看上下文.
比如如果别人问"What happened to the old man?"回答就用一般过去时比较自然.
用完成式比较常见的是交待现在的情况,下面还有别的内容,例如That old man has fallen down and hurt himself.Now someone must help him up.

that old man has fallen down and hurt himself为什么用完成时不用一般过去时 An old man （）down and （）himself in the street.fell；hurt.为什 the old man fell down and hurt his knees by a_____ "The old man has fallen into poverty"是主系表结构吗?has fallen是系动词? no man is angery that feels not himself hurt. He fell down and _hurt___ his leg（为什么hurt不用加s?它不 No man is angry that feels not himself hurt,这个是什么从句,that 引导什 Michael fell down and hurt ()A.him B.he C.himself My brother __ down while he __ his bicycle and hurt himself. NO man is angry that feels not hurt himself怎么解求No man is angry that feels not himself hurt的语法结构! 选择哪个,为什么?A British man has met and married a 22-year-old wom