高三英语教案 灵活多用的动词不定式
动词不定式是高考的必考内容之一，其考查内容多且复杂，高考中常考查不定式作主语、状语、宾语、补语、表语和插入语；不定式的时态和语态，主动表示被动意思等；动词不定式符号“to”的省略也在考查范围之内。
●难点磁场
1.(★★★★★)There are five pairs________,but I’m at a loss which to buy.
A.to be chosen from B.to choose from
C.to choose D.for chosing
2.(★★★★)________late in the morning,Bob turned off the alarm.
(2001京、皖、蒙春季高考)
A.To sleep B.Sleeping C.Sleep D.Having slept
3.(★★★★★)It is said that in Australia there is more land than the government knows________. (NMET 2002)
A.it what to do with B.what to do it with
C.what to do with it D.to do what with it
●案例探究
1.Robert is said________ abroad,but I don’t know what country he studied in.
A.to have studied B.to study
C.to be studying D.to have been studying
命题意图：考查动词不定式的时态（完成式）的用法。此题属五星级题目。
知识依托：不定式的完成式表示的动作通常在谓语所表示的动作（或状态）前已完成，强调动作发生在过去。
错解分析：C、D项干扰较大。若选C项，but后句子应改为but I don’t know what country he is studying in.若选D项，应改为：but I don’t know what country he has studied in.
解题方法与技巧：由题干“I don’t know what country he studied in”可得知“他在国外学习这一动作发生在过去”。故答案为A。
答案：A

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