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          北外網課過去完成時常用知識點 給你實用英語口語表達技能

          2017-04-27 02:30:43 來源:北外網課

          我們知道,如果想要掌握駕輕就熟的英語口語表達技能,就必須掌握基本的語法要點。今天,北外網課(北京外國語大學網絡課堂)老師就整理了英語中一類常見的語態相關知識——關于過去完成時的常用知識點,帶你輕松掌握,給你實用的英語口語表達技能。

          what would have happened if she had not been there.

          這是一個表示與過去事實相反的虛擬語氣句,時態屬于過去完成時。虛擬語氣表示說話人所說的內容并不是事實,而是一種假設或推測,分為現在時虛擬語氣和過去時虛擬語氣。該句子因為敘述的內容與過去事實相反,符合過去時虛擬語氣中非真實條件句結構:(與過去事實相反)if+過去完成時, would(should, could, might)+ have+過去分詞。因此主句if she hadnot been there(如果沒有她),從句what would have happened(會發生什么事情),全句意為:如果她不在這兒,不知道會發生些什么。

          The fish would not have been burnt if you had told me. 要是你告訴我,魚就不會糊了。

          Would the little girl have hurt herself if her mother hadnt left heralone? 要不是她媽媽把她一個人留下了,小女孩會弄傷自己嗎?

          主句中過去完成時表示到過去某一時刻動作已經完成,或持續到過去某一時刻的動作或狀態,其結構是:had+p p (過去分詞)。句中常出現:beforeafteroncebyuntilwhenas soon as用來引導時間狀語。

          He deeply realized the love in his soul only after she had left.只有當她離開以后,他才深深地意識到自己心中的愛。

          All of us hadnt cried for even a drop of tear until the final departure came up.大家都忍著不流一滴眼淚,直到那最終的離別到來。

          過去完成時的用法中要注意:

          no soonerthan…和hardly/scarcelywhen…結構中,主句的謂語動詞多用完成時。

          Many graduators had no sooner received new jobs than quit because ofdissatisfaction with the salary.許多畢業生找了新工作不久就會因為不滿意薪酬而辭職。

          Mum had scarcely rested when she began to cook for us.媽媽還沒休息就又開始給我們做飯了。

          如果否定詞出現在句首,主句的主謂要注意倒裝。

          Hardly had you celebrated for this success when the next task came. 還沒等慶祝成功,新任務就下來了。

          No sooner had I bought a new dictionary than it was stolen. 我剛買了本新字典就被偷了。

          在主從復合句中,如果主句的謂語動詞用過去時,其后的賓語從句謂語的動作是先發生的,常用過去完成時。

          They clearly remembered what crime the guy had committed.他們清晰地記得那家伙犯下的罪。

          John was warned that he had made the same mistake for several times.約翰被警告說同樣的錯誤他已經犯過多次了。

          在“It was thefirst time that…”結構中,從句的謂語動詞用過去完成時。

          It was the second time that I had been in such a dilemma in my life.這是我人生中第二次陷入這樣的兩難之境。

          It was the first time that we tried French food.那是我們第一次吃法國菜。

          過去完成時和before連用,表示“還沒……就……”。

          Girls put on colorful summer dresses before the spring hadcompletely gone.春天還完全沒有離去,女孩子們就都換上了五彩繽紛的夏裝。

          He rushed out before I had finished all my words.我話還沒有說完,他就沖出去了。

          wishexpecthopemeanintendsupposeplanthinkwant等詞在過去完成時里表示過去沒有實現的愿望、打算、計劃,也表示失望和惋惜等情緒。

          The thief had intended to break into the house, but he was unluckilycaught by the police.小偷試圖破門而入,不幸反被警方逮住了。

          The rain stopped me, or I had really wanted to come over to your party.要不是雨,我是真的很想來參加你的聚會的。

          The father had wished his son to find an ideal job, but disappointedat last.那位父親希望兒子能找到理想的工作,最后卻失望了。

          在敘述歷史事實時,可以不用過去完成時,而用一般過去時。

          The guides told visitors that the monument was there since World War.導游告訴游客這個紀念碑二戰起就在這兒了。

          更多英語口語外教一對一的練習,北外網課也攜優質全明星教師團隊,打造了一系列精品網絡課程,給你實用外教一對一會話練習,詳情點擊:http://www.k3pn18.fun/got?iqMJru

          更多精彩,盡在北外網課:http://www.k3pn18.fun/got?qiYNzi


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