2017屆高考英語非謂語動詞
j.can’t help doing情不自禁做…… can’t help to do不能幫助做…… 2.做賓補時的比較 不定式可以表示一次性、具體性行為，以及將來意義的行為。現在分詞可以表示當時正在發生的進行意義的行為，亦可表示-個持續時間的延續性的行為動作。過去分詞可以表示完成意義的行為或狀態，及物動詞的過去分詞亦有被動意義，不及物動詞的過去分詞仍是主動意義。 when i came in, i saw her dancing happily. i often hear her sing songs in english in her room. they had the lights burning all night long. i saw li ping pass by and enter the next room just now. the mother will have the doctor examine her son again. tomorrow i'll have my hair cut. when i got home i found the window broken and the thief gone away already. when they returned to their hometown, after an absence of twenty years, they found everything changed. 3.做表語時的比較 不定式和動名詞做表語解釋主語內容，且可以和主語顛倒，意思仍然通順，回答what的問題。它們有時存在經常性和一次性行為的區別，分詞做表語表明主語的性質、特征和狀態，不能和主語顛倒，可以回答how的問題。 her job is cleaning offices.(what is her job?) (=cleaning offices is her job.) our job today is to clean the office.(=to clean the office is our job today.) the news is very exciting.(how is the news?) they are very tired after a long walk. the door is locked now. the children are well dressed these days. 4.做定語時的比較 不定式做定語與先行詞有動賓、主謂和解釋先行詞內容等關系。在時態上常是將來意義，現在分詞做定語是現在時或進行時態意義;過去分詞做定語則是完成時態意義。此外，不定式做定語時只能后置，不可前置，而單個分詞做定語可前置，分詞短語做定語則須后置。動名詞做定語，須前置，且要重讀，它表明先行詞的用途。而分詞做定語表明先行詞的性質、特征和狀態。 a swimming boy=a boy who is swimming a swimming pool=a pool for swimming the boiling water=the water that is boiling drinking water=water for drinking today i have a letter to write. please find a man to help us. it is a good chance to practice your spoken english.練習你的口語 i like reading books written by lu xun. the woman standing over there is our english teacher.站在那邊的 the house to be built (=which will be built/which is to be built) next year will be our new library. the house being built (=which is being built) now will be our new library. the house built (=which was built) last year is our new library now. 5.做狀語時的比較 不定式和分詞做狀語各有不同分工。動詞不定式多做目的、結果和原因狀語，且多放在句末;分詞 可以表示時間、原因、條件、讓步、方式狀語，多置于句首，做伴隨狀語，多放在后面。分詞用于go doing結構中作目的狀語。