三情態(tài)動(dòng)詞
語(yǔ)法精講情態(tài)動(dòng)詞是歷年高考英語(yǔ)命題中不可缺少的考察內(nèi)容。它涉及談話所說(shuō)的內(nèi)容的態(tài)度和看法,或者表主觀設(shè)想及其他情態(tài)意義的助動(dòng)詞。正確掌握其用法是解題的關(guān)鍵。其意義與用法如下:
一. 表推測(cè)
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對(duì)現(xiàn)在的推測(cè)
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對(duì)過(guò)去的推測(cè)
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肯定
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否定
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肯定
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否定
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must do
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can’t do
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must have + V-ed
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can’t have + V-ed
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could do
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couldn’t do
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could have + V-ed
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couldn’t have +V-ed
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may do
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may not do
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may have + V-ed
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may not have +V-ed
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might do
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might not do
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might have V-ed
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might not have V-ed
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表推測(cè)性用法的含義
may: a) 許可 b)祝愿
can a) 能力 b)許可 c)驚異,懷疑,不相信的態(tài)度
must a)必須 b) 必然
ought to a) 應(yīng)該(義務(wù)和責(zé)任)