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him about it.→Were I to meet him tomorrow, I should ask him about it.If it had rained last night(與過去相反), it would be very cold today(與現(xiàn)在相反).Step6 虛擬語氣在名詞性從句中的語法規(guī)則在主語從句中It is demanded / necessary / a pity +that…等結(jié)構(gòu)的主語從句,謂語動詞用should加動詞原,should可省略。It is后可用的詞有三類:1. suggested, ordered, required, proposed, demanded, insisted等2. important, necessary, natural, imperative, strange等3. a pity, a shame, no wonder等在賓語從句中主要表示命令、建議、要求等虛擬語氣,主要動詞有:一、堅持insist二、命令order, mand三、建議suggest, propose, advise四、要求demand, require, request, desire這些動詞后面的賓語從句要用虛擬語氣,即謂語動詞用should加動詞原形,should可省略。在表語從句、同位語從句中suggestion, proposal, idea, plan, order,advice等名詞后面的表語從句、同位語從句中要用虛擬語氣,即(should)+動詞原形。Step7 給出簡單例句并引導(dǎo)學(xué)生思考它們分別屬于以上的那種情況,加深學(xué)生的理解We suggested that tom have a rest.He insisted that all of us should be there on time by any means.I make a proposal that we should hold a meeting next week.Ⅲ、交流互動 提出一些具體的語境和學(xué)生進行對話,也可以鼓勵學(xué)生自己創(chuàng)設(shè)語境,主動和老師對話,旨在幫助學(xué)生鞏固和掌握虛擬語氣的用法,提高學(xué)生靈活使用虛擬語氣的能力。