關(guān)于現(xiàn)在分詞被動(dòng)式和過去分詞的問題
When first introduced to the market,the products enjoyed great success.
為什么不是being introduced?
語法書上說,作條件,讓步,伴隨狀語時(shí),用過去分詞不用現(xiàn)在分詞被動(dòng)式.
過去分詞和現(xiàn)在分詞被動(dòng)式到底該怎樣區(qū)別?
anwser:
這句話的完全形式應(yīng)該是
When they were first introduced to the market
這才是一般過去時(shí)的被動(dòng)語態(tài)的完整形式
這里省略了they were,主語和謂語
當(dāng)主句會(huì)交代出主語是什么時(shí),從句中經(jīng)常用這種省略的方式.
所以不用你說的being introduced
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剛看到這個(gè)帖子,我有一點(diǎn)不太明白.
是說所有選過去分詞的都是因?yàn)槭÷詥?
比如 Once completed,the hall will...這里不選being completed 答案書說complete和the hall是動(dòng)賓關(guān)系所以選completed
那可不可以理解為原句是once the hall will be completed,the hall will.省略了主語和謂語the hall will be,所以才選completed而不失being completed?
不然being completed 也是表被動(dòng)阿,為什么不選?