現(xiàn)在進(jìn)行時(shí)1、現(xiàn)在進(jìn)行時(shí)的構(gòu)成現(xiàn)在進(jìn)行時(shí)是由“am, is, are +現(xiàn)在分詞”構(gòu)成的。I'm reading the evening newspaper.我正在看晚報(bào)。2、現(xiàn)在進(jìn)行時(shí)的用法(1)現(xiàn)在進(jìn)行時(shí)的基本用法①表示說話的此刻正在進(jìn)行的動(dòng)作通常由表示“此刻”的時(shí)間狀語(now, at this moment)，或通過Look/Listen!這兩個(gè)提示語來表明此時(shí)此刻動(dòng)作正在進(jìn)行。She is making a fire now.她正在生火。Listen! Mary is singing an English song in the classroom.聽!瑪麗正在教室里唱英文歌。②表示現(xiàn)在時(shí)間段中正在進(jìn)行的動(dòng)作They are planting trees on the hill these days.這幾天他們正在山上種樹。③表示按計(jì)劃或安排將要發(fā)生的動(dòng)作能這樣用的動(dòng)詞并不多，通常是arrive, begin, come, do, drive, fly, go, leave,stay等表示位置轉(zhuǎn)移的動(dòng)詞。這種用法比較生動(dòng)，給人以一種期待感。Where are you staying in Guangzhou?你到廣州后準(zhǔn)備住在哪里?(2)現(xiàn)在進(jìn)行時(shí)的特殊用法①表示一種重復(fù)的動(dòng)作，帶有“厭惡”、“贊嘆”等感情色彩現(xiàn)在進(jìn)行時(shí)往往與constantly, always, forever等狀語連用，給現(xiàn)在的動(dòng)作披上一層感情色彩。She's constantly complaining.她不停地抱怨。②表示某一具體動(dòng)作或心理狀態(tài)的發(fā)展過程The house is falling down.房子正在倒下。【注意】有時(shí)表示一個(gè)動(dòng)作剛剛開始。I'm forgetting my English.我的英語開始忘了。Food is costing more.食品貴了起來。③強(qiáng)調(diào)動(dòng)作的重復(fù)The train is arriving late almost every day this summer.這個(gè)夏季火車幾乎天天晚點(diǎn)。④表示兩個(gè)動(dòng)作是同一動(dòng)作He who helps others is helping himself.幫人就是幫自己。⑤be動(dòng)詞的進(jìn)行時(shí)態(tài)be動(dòng)詞一般不用于進(jìn)行時(shí)態(tài)。但有時(shí)可用“am, is, are + being +形容詞”結(jié)構(gòu)表示暫時(shí)或故意如此。The boy is being naughty.這孩子有點(diǎn)兒淘氣。He is being modest.他現(xiàn)在很謙虛。
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