Question

7．你知道他來蘇州有多久了嗎？Do you know how long he has been in Suzhou？．

Answer 1

分析 Do you know how long he has been in Suzhou？

解答 答案：Do you know how long he has been in Suzhou？這里是一個主從復(fù)合句，主句是你知道嗎？用一般現(xiàn)在時，do you know．從句時態(tài)不受限制，余下的作為know的賓語從句，從句是一個特殊疑問句，引導(dǎo)詞用疑問詞how long來充當，后加陳述語序，這里來蘇州的動作發(fā)生在過去，延續(xù)了一段時間，故用現(xiàn)在完成時have/has+過去分詞，主語是he，故has，來come to是短暫性動詞，需換成be in表狀態(tài)，be的過去分詞been，故how long he has been in Suzhou，故答案是Do you know how long he has been in Suzhou？

點評 這里是賓語從句的呈現(xiàn)，注意引導(dǎo)詞，時態(tài)和語序，這里還要注意現(xiàn)在完成時中短暫性動詞藥轉(zhuǎn)換成持續(xù)性動詞．