3．Seed plants-plants _____ from seeds-need water，sunlight and mineral to grow vigorously．（　　）
A．grownB．to growC．to be grownD．having grown

分析 種子類植物，一種用種子培養(yǎng)出來的植物，需要水，陽光和礦物質(zhì)才會蓬勃生長的植物．

解答 答案：A
題干中g(shù)row是作plants的后置定語，要用非謂語動詞；grow與被修飾名詞構(gòu)成動賓關(guān)系，要用被動；句意表達(dá)的是客觀事實，不能用不定式．故選A．

點評 過去分詞是非謂語動詞的一種，用法很靈活，分為簡單式done（表示與謂語同時或幾乎同時發(fā)生的動作）；完成式having been done（表示先于謂語的動作）．學(xué)習(xí)時，要把握其用法特征：表示被動和完成．同時還要注意區(qū)分現(xiàn)在分詞和不定式．

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