來源:網(wǎng)絡(luò)來源 作者:中考網(wǎng)編輯 2020-11-10 15:46:25
中考網(wǎng)整理了關(guān)于2021年中考英語知識點:比較until和till的用法,希望對同學(xué)們有所幫助,僅供參考。
比較until和till的用法
此兩個連詞意義相同?隙ㄐ问奖硎镜囊馑际“做某事直至某時”,動詞必須是延續(xù)性的。否定形式表達(dá)的意思是“直至某時才做某事”。動詞為延續(xù)性或非延續(xù)性都可以。正確使用這兩個連詞的關(guān)鍵之一就在于判斷句中的動詞該用肯定式還是否定式。
肯定句:I slept until midnight. 我一直睡到半夜時醒了。Wait till I call you. 等著我叫你。(在肯定句中可用before代替。例如:Let's get in the wheat before the sun sets.)
否定句:She didn't arrive until 6 o'clock. 她直到6點才到。Don't get off the bus until it has stopped. 公共汽車停穩(wěn)后再下車。I didn't manage to do it until you had explained how.直到你教我后,我才會做。
區(qū)別:1)until可用于句首,而till通常不用于句首。Until you told me, I had heard nothing of what happened.直到你告訴我以前,出了什么事我一點也不知道。
2)until when 疑問句中,until要放在句首。Until when are you staying?Until next Monday.你呆到什么時候?呆到下周一。注意:否定句可用另外兩種句式表示。
3)Not until…在句首,主句用倒裝。Not until the early years of the 19th century did man know what heat is.直到19 世紀(jì)初,人類才知道熱為何物。Not until I began to work did I realize how much time I had wasted.直到工作,才認(rèn)識到我已蹉跎了許多歲月。
4)It is not until… that….It was not until I began to work that I realized how much time I had wasted.
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