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關(guān)閉窗口 這個情態(tài)動詞后該接什么
請看題，這個情態(tài)動詞后該接什么？
That day Mr Smith got up late, so he ran as fast as he could _________ the early bus.
A. catch B. to catch C. catching D. caught
【分析】此題容易誤選A，認為情態(tài)動詞后只能接動詞原形。但是，錯了，正確的答案是B。其實情態(tài)動詞 could 后本來有動詞原形 run，只是被省略了，即此句的完整形式應(yīng)是 …so he ran as fast as he could run to catch the early bus，其中的不定式 to catch the early bus 為目的狀語。又如：
(1) My parents did what they could _________ my aunt and uncle.
A. help B. to help C. helping D. helped
(2) He read what he could _________ his knowledge.
A. widen B. to widen C. widening D. widened
以上兩題均選B，即選不定式，且此不定式為目的狀語。但是，同學(xué)們?nèi)魮?jù)此形成思維定勢，也會麻煩。為此，請再看兩題：
(1) He ran as fast as he could _________to catch the bus.
A. hope B. to hope C. hoping D. hoped
【分析】此題的最佳答案不是B，而是C，其中的現(xiàn)在分詞短語 hoping to catch the bus 用作伴隨狀語，即一邊跑一邊在希望能趕上早班車。
(2) He spent every minute he could _________ foreign languages.
A. study B. to study C. studying D. studied
【分析】此題也應(yīng)選C，但是，它與上題選現(xiàn)在分詞 hoping 表伴隨有所不同，此題的 studying 其實與其前的動詞 spend 有關(guān)，即此句中的 studying 為動名詞，其前省略了介詞 in。注意spend 的句型：spend + 時間或金錢 + (in) doing sth(from www.hz123456.com)。
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