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。例:2005年6月大學(xué)四級(jí)第65題 I was _______ the point of telephoning him when his letter arrived. A) in B) to C) at D) on 答案是D)。on the point of doing是固定詞組,意思是“正要、打算”。全句的意思是:“當(dāng)他的信到的時(shí)候我正要打電話給他。”注意事項(xiàng): 在以if, when, as long as, as soon as, after, before, in case, until, unless等連詞以及具有連詞作用的副詞(immediately, the moment, directly)等引導(dǎo)的狀語(yǔ)從句,一般用現(xiàn)在時(shí)代替將來(lái)時(shí)。強(qiáng)調(diào)延續(xù)性或動(dòng)態(tài)時(shí),可用完成時(shí)?! ±篒 hope his health will have improved by the time you e back next year.(我希望到明年你回來(lái)的時(shí)候,他的身體已經(jīng)好多了。)四、現(xiàn)在進(jìn)行時(shí)(be doing) 概念:表示現(xiàn)階段或說(shuō)話時(shí)正在進(jìn)行的動(dòng)作及行為?! r(shí)間狀語(yǔ):now, at this time, these days, etc. 基本結(jié)構(gòu):am/is/are+doing 否定形式:am/is/are+not+doing. 一般疑問(wèn)句:把be動(dòng)詞放于句首。五、過(guò)去進(jìn)行時(shí):用法:A)表示在過(guò)去一個(gè)比較具體的時(shí)間正在發(fā)生的動(dòng)作?! ±篗ary was listening to light music 10 minutes ago.(10分鐘前,瑪麗正在聽(tīng)輕音樂(lè)。)B)如果when, while這樣的時(shí)間狀語(yǔ)引導(dǎo)詞所引導(dǎo)的主從句之一是一般過(guò)去時(shí),則另一個(gè)句子常用過(guò)去進(jìn)行時(shí)?! ±篒 was washing my hair when you knocked at the front door.(你敲前門時(shí)我正在洗頭發(fā)。) 時(shí)間狀語(yǔ):at this time yesterday, at that time或以when引導(dǎo)的謂語(yǔ)動(dòng)詞是一般過(guò)去時(shí)的時(shí)間狀語(yǔ)等?! 』窘Y(jié)構(gòu):was/were+doing 否定形式:was/were + not + doing. 一般疑問(wèn)句:把was或were放于句首。六、將來(lái)進(jìn)行時(shí)(will be doing)用法:強(qiáng)調(diào)在將來(lái)的某個(gè)具體時(shí)間正在發(fā)生的動(dòng)作或事情。例:Don39。t worry, you won39。t miss her. She will be wearing a red Tshirt and a white skirt at that time.(別擔(dān)心,你不會(huì)認(rèn)不出她的。她到時(shí)會(huì)穿一件紅色的T恤衫和一條白色的短裙。)句子結(jié)構(gòu):主語(yǔ)+will be+doing/主語(yǔ)+be going to+be+doing時(shí)間狀語(yǔ):soon, tomorrow, this evening, on Sunday, by this time, tomorrow, in two days, tomorrow evening.Iwill be studyingEnglish when you arrive tonight.明晚你來(lái)的時(shí)候,我會(huì)正在學(xué)習(xí)英語(yǔ).I’m going to be studyingEn