現(xiàn)在完成時講解含講解及習題資料-文庫吧資料
2025-03-31 06:00本頁面
【正文】 + since + 時間點 My father has been in Shanghai for two months/ since two months ago. 我爸已經(jīng)在上海待了兩個月了。1. I have __________seen him before, so I have no idea about him.2. Jack has __________finished his homework. 3. Have you _________seen the film? No, I have ________seen it.4. Has the bus left _______? Yes, it has ________ left.5. Would you like to go to the zoo with me? Yes, but I have been there _________.★ has gone to, has been to, has been in 的區(qū)別：1. have/has gone to 去了某地（還在某地沒回來） Where is your father? 你爸爸在哪里？He has gone to Shanghai. 他去上海了。? What have they just done? 他們剛剛做了什么？d） before用于句末, 表示“以前”? I’ve seen it before. 我以前見過它。? Have you written to your parents yet? 你已經(jīng)給你父母寫過信了嗎？b） never 是否定詞，表示“從來沒有”，而ever 表示“曾經(jīng)”? We have never been to the Great Wall. 我們從來沒有去過長城。? He has already left here. 他已經(jīng)離開這里了。 標志詞： ①already, ②never, ③ever, ④just, ⑤yet, ⑥before, ⑦once/twice/數(shù)字+ times 例： I have cleaned my room. 我已打掃了房間(房間現(xiàn)在是干凈的，不需要打掃了)They have left. 他們已經(jīng)離開了,也就是說現(xiàn)在他們?nèi)瞬辉谶@里I have never had a car (我從未有過汽車。）c)以輔+元+輔結(jié)尾且中讀的動詞，要雙寫最后一個輔音字母，再加ed?，F(xiàn)在完成時講解一、構(gòu)成:肯定式：主語 + 助動詞have/has + 動詞的過去分詞. 疑問式：助動詞Have/Has + 主語 + 動詞的過去分詞?否定式: 主語 + 助動詞have/has + not + 動詞的過去分詞.過去分詞規(guī)則變化：a)一般情況下，直接加ed, （workworked，waterwatered, finishfinished等。）b)以“輔音字母+ y”結(jié)尾的動詞, 把y 變成i 再加ed, （carry carried studystudied等。 （stopstopped，shopshopped）d)以不發(fā)音的e結(jié)尾的動詞，只加d （ 過去分詞不規(guī)則變化表：二、用法：用法一：表示過去（已經(jīng)、曾經(jīng)或從未）發(fā)生的某一動作對現(xiàn)在造成的影響或結(jié)果。)I have been there twice.a）already 往往用于肯定句，用在疑問句時表示強 調(diào)或加強語氣；yet 用于否定句和疑問句。? Has he already left here? 他（真的）已經(jīng)離開這里了嗎？（表示加強語氣）? My teachers haven’t had breakfast yet. 我的老
范文總結(jié)相關(guān)推薦
鄂ICP備17016276號-1