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r the last(past)few years (months, weeks)、in recent years等?! 、谙铝芯湫椭谐S矛F(xiàn)在完成時(shí) It is (has been) + 一段時(shí)間 + since從句 This(That / It)is the first(second…)time that + 完成時(shí) This(That / It)is the only … + that + 完成時(shí) This(that / It)is the best / finest / most interesting … + that 從句 + 完成時(shí) ?、墼跁r(shí)間或條件狀語(yǔ)從句中,現(xiàn)在完成時(shí)可以代替一般將來時(shí)。如: I shall post the letter as soon as I have written it. If you have done the experiment, you will realize the theory better. Don’t get off the bus until it has stopped. 介詞in, on, under等+名詞構(gòu)成介詞短語(yǔ)表被動(dòng)意義 表示方位的介詞與含動(dòng)作意義的名詞合用,含被動(dòng)之義,其意義相當(dāng)于該名詞相應(yīng)動(dòng)詞的被動(dòng)形式,名詞前一般不用冠詞?! ?. “under +名詞”結(jié)構(gòu),表示”某事在進(jìn)行中”。常見的有:under control(受控制), under treatment(在治療中), under repair(在修理中), under discussion(在討論中), under construction(在施工中)?! ±齌he building is under construction(is being constructed). 2.“beyond+名詞”結(jié)構(gòu),“出乎……勝過……、范圍、限度”。 常見的有:beyond belief (令人難以置信), beyond one’s reach(鞭長(zhǎng)莫及),beyond one’s control(無(wú)法控制),beyond our hope. 我們的成功始料不及?! ±齌he rumour is beyond b