高中英語(yǔ)module5grammar課件外研版選修6(已修改)
2024-12-03 17:00 本頁(yè)面
【正文】 （ 1）真實(shí)條件句 表示提出的假設(shè)完全可以成為事實(shí) , 謂語(yǔ)動(dòng)詞用陳述語(yǔ)氣 . If time permits, we39。ll go fishing together. 如果有時(shí)間的話，我們就一起去釣魚。 （ 2）虛擬條件句 表示所提出的假設(shè)實(shí)現(xiàn)的可能性極小與事實(shí)相反 , 謂語(yǔ)動(dòng)詞用虛擬語(yǔ)氣 . 虛擬語(yǔ)氣也可以表示愿望 ,請(qǐng)求及建議等 . If it had rained yesterday, we would have stayed at home. 如果昨天下雨的話，我們就會(huì)留在家里。 一、與現(xiàn)在事實(shí)相反的假設(shè) 從句： if + 主語(yǔ) + 動(dòng)詞的過(guò)去式 (be 用 were) + …… 主句 ：主語(yǔ) + would (should, could , might) + 動(dòng)詞原形 + …… If I were you, I would go with him. If I were you, I should buy it. 注意：如果動(dòng)作在進(jìn)行中，主句要用： 主語(yǔ) + would be + 進(jìn)行式動(dòng)詞 + …… If they were here, he would be speaking to them now. 二 .與過(guò)去事實(shí)相反的假設(shè) 從句： If + 主語(yǔ) + had +過(guò)去完成式動(dòng)詞 + …… 主句： 主語(yǔ) + would (should, could, might) + have +過(guò)去完成式動(dòng)詞 +…… If you had studied harder last term, you could have passed exam. If it had snowed, I would have skied in the park. 注意：如果動(dòng)作在進(jìn)行中，主句要用： 主語(yǔ) + would+ have + 完成進(jìn)行式動(dòng)詞 +…… If they had been here, he would have been speaking to them. 三 .與將來(lái)的事實(shí)可能相反 從句： If + 主語(yǔ) + should (或 were) + 動(dòng)詞原形 +…… 主句 ：主語(yǔ)
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