現(xiàn)在完成時(shí)語法練習(xí)課課件新目標(biāo)(存儲版)
【正文】 e days ago. 一般過去時(shí)態(tài)和現(xiàn)在完成時(shí)態(tài)同義轉(zhuǎn)換 . I have kept the book for a week . . I have been a student for over two years. I borrowed the book a week ago. I became a student two years ago. Black死了三年了。 如： Have you ever been to Hong Kong? I’ ve never traveled by air. 用 法 I have already written to her. She hasn’ t spent much time on it yet. 表示剛剛發(fā)生過的動作或事情 ， 常與just連用 。如： 表示過去發(fā)生 ， 目前還有可能仍在繼續(xù)下去的動作或事情 。如： work,read,write,study等 ,短暫性動詞 是指那些動作一次完成，不能延續(xù)的動詞。 I’ ve written three letters this morning.（說話時(shí)仍是上午） I wrote three letters this morning. （說話時(shí)仍是上午或晚上） 現(xiàn)在完成時(shí)強(qiáng)調(diào)動作或事情發(fā)生在過去，一直延續(xù)到現(xiàn)在，而且還有可能繼續(xù)延續(xù)下去；而一般過去時(shí)只表示發(fā)生在過去的動作或事情。 常與 ever或 never連用 。 常與 since或 for連用 (動作的持續(xù)性要通過一段時(shí)間來表示 ) . Kate has lived here for 3 years. Kate has lived here since 3 years ago. Kate has lived here since she came to China for 和 since的運(yùn)用對比 : for: +一段時(shí)間 for two weeks for three years since 過去的某一時(shí)刻 since then since last month 一般過去時(shí)態(tài)的時(shí)間狀語從句 since she left 注意 :for 和 since 所引導(dǎo)的時(shí)間狀語都 表示一段時(shí)間 . He has been away for a week. He has been away since last week. 對劃線部分提問都用How long 現(xiàn)在完成時(shí)態(tài)是中考的必考時(shí)態(tài)，由于現(xiàn)在完成時(shí)態(tài)既涉及到過去，又聯(lián)系到現(xiàn)在，和一般過去時(shí)態(tài)，一般現(xiàn)在時(shí)態(tài)，現(xiàn)在進(jìn)行時(shí)態(tài)既有聯(lián)系，又有 區(qū)別，所以同學(xué)們掌握起來比較困難。如： e, go, buy, die, 等。 I saw Mary an hour ago. She lost her handbag yesterday . 有些時(shí)間狀語，既能用于現(xiàn)在完成時(shí)，又能用于一般過去時(shí)，但意義上有差別。Wele to our class 現(xiàn)在 完成 時(shí)態(tài) 語法練習(xí)課
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