2．When the clerk saw a kind face wrinkled in an apologetic smile，she stood rooted to the ground，__________whether to stay or leave．（　�。�
A．wonderingB．wonderC．to wonderD．wondered

分析 當(dāng)這個(gè)職員看到一張滿是皺紋的善良臉龐上露出的歉意微笑時(shí)，她就像生了根似的站在那里，不知道是走還是留．

解答 題干中的主語she與動(dòng)詞wonder 之間構(gòu)成邏輯上的主謂關(guān)系，即主動(dòng)意思．且動(dòng)詞wonder伴隨主句的謂語動(dòng)詞stood同時(shí)存在，所以用非謂語動(dòng)詞的現(xiàn)在分詞形式作伴隨狀語，故選A．
不定式（to do）作狀語時(shí)，可表示目的、結(jié)果（意料之外）、原因等，而題干中則表示一個(gè)主動(dòng)，伴隨的動(dòng)作，故排除C．
題干中主句的謂語動(dòng)詞stood時(shí)態(tài)是一般過去式，如果要表示一個(gè)并列的動(dòng)作，動(dòng)詞wonder則需與stood保持一致，用一般過去式wondered，但題干中又缺少一個(gè)并列連詞鏈接這兩個(gè)動(dòng)作，所以B、D都錯(cuò)誤．

點(diǎn)評 本題考查現(xiàn)在分詞作伴隨狀語的用法．解題第一步先要找準(zhǔn)動(dòng)詞的邏輯主語．接著判斷這兩者之間的關(guān)系．如果是主謂（主動(dòng)）關(guān)系，就用現(xiàn)在分詞（doing）；如果是動(dòng)賓（被動(dòng)）關(guān)系，就用過去分詞（done）．如果此動(dòng)詞的動(dòng)作發(fā)生在主句的謂語動(dòng)詞動(dòng)作之前，主動(dòng)關(guān)系就用非謂語動(dòng)詞的完成式（having done），被動(dòng)關(guān)系就用having been done．

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