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英語八大時態(tài)整理-文庫吧資料

2025-04-10 01:35本頁面
  

【正文】 e或has提前。)③表示從過去某時刻開始,持續(xù)到現(xiàn)在的動作或情況,并有可能會持續(xù)下去。)②表示發(fā)生在過去但對現(xiàn)在仍有影響的動作或情況。(2) 基本結(jié)構(gòu):have/has + done(3) 時間狀語:recently, lately, since…for…,in the past few years, etc.(4) 用法:①表示動作到現(xiàn)在為止已經(jīng)完成或剛剛完成。練習(xí)(exercises):1. Mary __________(do) her homework at 7 . yesterday.2. She __________(clean) the house the whole afternoon yesterday. (她昨天整個下午都在打掃房子。例:They were building a bridge last winter.(他們?nèi)ツ甓煸诮ㄒ蛔鶚?。例:When I came home yesterday, they were having dinner.(昨晚我回家的時候他們在吃晚飯。(2) 基本結(jié)構(gòu):was/were + doing(3) 時間狀語:at this time yesterday, at that time或以when引導(dǎo)的謂語動詞是一般過去時的時間狀語等。練習(xí)(exercises):1. Hurry up! We __________(wait) for you. (快點!我們在等你。例:What are you doing? I am writing a letter. (我正在寫信。例:She is now teaching in a middle school. (她現(xiàn)在在一所初中教書。練習(xí)(exercises):1. At that time she _____(is) very good at English.2. He _____(run) across the road after school yesterday.3. 現(xiàn)在進行時(1) 概念:表示現(xiàn)階段或說話時正在進行的動作及行為。例:I wanted to ask you if I could borrow your car?(我想向您借車用一用,可以嗎?) Would you mind my sitting here?(您介意我坐在這里嗎?)(5)否定形式:帶be:主語+was/were not+動詞原形+...... 不帶be:主語+didn39。) He used to visit his mother once a week.(他以前總是每周看望一次他的母親。)特殊用法:由would/ used to do表達(dá)的句型,本身表示的就是過去時,意為過去常常。)②表示過去習(xí)慣性動作。(2) 基本結(jié)
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