湖北省荊州市沙市八年級(jí)英語下冊(cè) unit 10 i’ve had this bike for three years課件2 -全文預(yù)覽
【正文】 ay. 從上周五到現(xiàn)在已經(jīng)四天了。 （ 3） 二者可以轉(zhuǎn)換 for + 一段時(shí)間 = since + 一段時(shí)間 + ago He has been here for five weeks. = He has been here since five weeks ago. 他到這兒已經(jīng)有五個(gè)星期了。 言外之意他對(duì)香港有所了解 ) How long have you had that bike over there? I39。 例如： He has gone to Hong Kong. 他到香港去了。 They have been to that village several times. 他們?nèi)ミ^那個(gè)村莊好幾次了。 Have you ever been to Hangzhou? 你曾經(jīng)去過杭州嗎？ Mary has never been to the Great Wall. 瑪麗從未去過長城。 They have been in Canada for five years. 他們到加拿大有五年了。 Have you ever sung this English song？ 你曾唱過這首英文歌嗎？ They haven‘t started yet. 他們還沒有身。） 4. 在現(xiàn)在完成時(shí)中 ever, never, just, already, yet在用法和意思上有什么區(qū)別？ 在學(xué)習(xí)這一概念的同時(shí)，還應(yīng)注意常與現(xiàn)在完成時(shí)連用的幾個(gè)副詞： already, just, ever, yet, never等。 現(xiàn)在完成時(shí) 與一般過去時(shí)的區(qū)別： have / has + V過去分詞 現(xiàn)在完成時(shí)表示過去發(fā)生或完成的某一動(dòng)作對(duì)現(xiàn)在造成的影響或結(jié)果。 如 : Jim has already finished his work. Jim已經(jīng)把他的工作做完了。 注意 : 現(xiàn)在完成時(shí)不能和明確指出時(shí)間的狀語 (如 : yesterday, last, year, in 1976, two days ago, just now, when she came in 等 )連用 ， 但可以和不明確指出時(shí)間的狀語 (如 : already, yet, ever, never, sometimes, always, often, before, once, twice, recently, lately等 )連用 ； 也可以和表示包括現(xiàn)在在內(nèi)的時(shí)間狀語 (如： today, this morning, this week, this year等 )連用 。 現(xiàn)在完成時(shí)與一般過去時(shí)在意義上 的區(qū)別舉例如下： I have cleaned my room. (My room is clean now.) 我已經(jīng)打掃過我的房間了。 2) She has lived in Beijing for five years. 她住在北京已經(jīng)五年了。和 already， never,ever,just,before,yet等狀語連用。 結(jié)構(gòu)： 主語 + have / has + 動(dòng)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(shí)動(dòng)詞構(gòu)成 have /has + v 過去分詞 助動(dòng)詞 否定 haven’t hasn’t 疑問 Have you… ? Has he… ? 常與下列時(shí)間狀語連用： just , already, yet, ever, never, before, several times 現(xiàn)在完成時(shí) 。 1) I have studied English since last year. 我從去年開始學(xué)習(xí)英語。 3. 現(xiàn)在完成時(shí)把過去的動(dòng)作和現(xiàn)在的結(jié)果聯(lián)系起來， 一般過去時(shí)只限于表示過去的動(dòng)作本身 , 與現(xiàn)在 的結(jié)果無關(guān)。 They have bought a dictionary. (They bought a dictionary and they have it now.)
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