人教版英語八下unit8haveyoureadtreasuresectiona-2課件(已修改)
2024-12-24 16:07 本頁面
【正文】 Unit 8 Have you read Treasure Island yet? 現(xiàn)在完成時態(tài) present perfect Grammar Focus Have you read Little Women yet? Yes, I have./No, I haven39。t. Has Tina read Treasure Island yet? Yes, she has. She thinks it39。s fantastic. Have you decided which book to write about yet? Yes, I have. I39。ve already finished reading it. It was really good. 現(xiàn)在完成時： 表示過去發(fā)生或已經(jīng)完成的某一動作對現(xiàn)在造成的影響或結(jié)果，或從過去開始一直延續(xù)到現(xiàn)在的動作或保存的狀態(tài)。 結(jié)構(gòu)： 主語 + have / has + 動詞的過去分詞 一般疑問句 ： have / has … ? Yes, I have. No, I haven’t. Yes, she has. No, she hasn’t. 1. 現(xiàn)在完成時動詞構(gòu)成 have /has + v 過去分詞 助動詞 否定 haven’t hasn’t 疑問 Have you…? Has he…? 常與下列時間狀語連用： just , already, yet, ever, never, before, several times 現(xiàn)在完成時 。和 already， never,ever,just,before,yet等狀語連用。 ，持續(xù)到現(xiàn)在的動作或狀態(tài)， 常與 for或 since引起的一段時間狀語連用。 動詞構(gòu)成： have/has+v過去分詞 have breakfast I have just had my breakfast. (現(xiàn)在我不餓 ) I’m not hungry now moved here in 2021 I still live here I have lived here for three years. I have lived here since 2021/three years ago. now past 2. 現(xiàn)在完成時動詞可以表示開始于過去持續(xù) 到現(xiàn)在 (也許還會繼續(xù)進行下去 )的動作或狀態(tài)。 1) I have studied English since last year. 我從去年開始學(xué)習(xí)英語。 2) She has lived in Beijing for five years. 她住在北京已經(jīng)五年了。 注意 : e, go , leave, arrive, buy, lose, receive, join, die, bury 和 marry 等動詞所表示的動作是 一時的 , 不能延續(xù)的 , 故不能與 for …, since … 等開頭的表示一段時間的狀語連用。不過 , 這些 詞用于否定句則可以與表示持續(xù)的時間狀語連用， 即動作的不發(fā)生是可以持續(xù)的。 不能說 : *He has e to Beijing for two years. *He has bought that book for three weeks. *He has joined the Army for one and a half years. *His grandma has died for nine months. * I have received his letter for a month. 可以說 : He has been in Beijing for two years. He has had that book for three weeks. He has been in the army for one and a half years. His grandma has been dead for nine months. I haven39。t received his letter for almost a month. 或者說： It is two y
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