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1、现在完成时He is full .He has had a big breakfast.1.过去某一时间点发生的动作对现在产生影响。功能 ：nI have just cleaned my clothes. 我刚洗过衣服。 （“洗衣服”是发生在过去的动作，对现在造成的结果是“衣服 干净了”）nI have just had my breakfast. (对现在的影响：不饿)通常与表示包括现在在内的时间副词 just（刚刚）, already （已经）, before, yet（一般疑问：已经；否定句：还） never, ever等状语连用n I have never heard of that
2、before.n Have you ever ridden a horse?n She has already finished the work.I I have learnedhave learned English for ten years English for ten years2.过去某一时间点发生的动作持续 到现在或还将持续下去。I have been here for just over two years. He has worked here since 1989. 从1989年，通常和 for（段时间）, since（点时间） 引导的 时间状语连用.以及 so far,
3、 by now, these days, in the last ten years 等连用。 nI havent seen her these days. nShe has learnt English for 3 years/since 3 years ago. nThey have lived here since 1990.n注意点一： n现在完成时与一般过去时的用法比较 n现在完成时表示过去的动作一直延续到现在甚至会继续 下去或表示过去的动作对现在造成的影响；一般过去时 表示动作发生的时间在过去。现在完成时属于现在时态 范围，因此，不能和表示过去的时间状语连用。 如： yesterd
4、ay, last night, two weeks ago等 n试比较： nThe plane has arrived . 飞机已经来了。（说明现在的 情况：飞机在这儿） nThe plane arrived a quarter ago. 飞机是一刻中以前来 的。（强调动作发生的时间在过去） nI have taught here for fifteen years. 我在这儿已经教 了十五年。（表示十五年前的动作一直延续到现在，还 可能会继续。） nI taught here for fifteen years. 我过去在这儿教过十五 年。（表示“我“现在已经不在这儿任教了）基本结构基本结构
5、have / has + done 助动词 （可以帮助 构成肯定、疑问和 否定句）注意点三：have been in, have been to 与have gone to 的用法1、have (has) been in 表示“在某地（多长时间）”，现在仍在那里。常与表示一段时间的状语连用。例如： Mr. Brown has been in Shanghai for three days. 布朗来上海已经有三天了。They have been in Canada for five years. 他们到加拿大有五年了。2、have( has)been to表示“曾经去过某地”，现在已经不在那里了
6、。可与just, ever, never等连用，例如：I have just been to the post office. 我刚才去邮局了。Mary has never been to the Great Wall. 玛丽从未去过长城。Have you ever been to Hangzhou before? 你以前曾经去过杭州吗？Have (has) been to 后面可接次数，表示去过某地几次。例如：They have been to that village several times. 他们去过那个村庄好几次了。3、have (has) gone to 意为“到某地去了”，表示
7、到了某地或正在去某地的途中。总之，说话时该人不在现场，例如： -Where is Tom? -He has gone to the bookshop. 他到书店去了。Jack Johnson has gone to London. 杰克.约翰逊到伦敦去了。1.He has cleaned his room. (写一个一般疑问句）Has he cleaned his room?2. She has lived in London for four years. (划线部分提问）How long has she lived in London?3. He has been to China, _
8、_?（写出反义疑问句部分）hasnt he 4. They have come back from work.(写否定句）They havent come back from work.What are the key words for the Present Perfect Tense?A: _ your brother _ his homework yet? (finish)B: Yes, he s already done it.Key Key wordswordsHas finished yet already 注意：already 用于肯定句，yet 用于疑问句和否定句中A: _
9、you ever _ to the park? ( be )B: No, never. Key Key wordswordsHave been yet already ever never 注意： ever 曾经 用于疑问句中never 从不 带有否定意义I _ just _ the desk, you can take it to your classroom . (mend )Key Key wordswordshave mended yet ever never just already Just 刚刚 与现在完成时连用 一般置句中Just now 刚才 与一般过去时连用Tom _ in
10、 the factory since he left school ten years ago. (work )Key Key wordswordshas worked yet ever never since already since 后面带过去时间或有一般过去时的句子A: How long _ you _ in this school? (teach )B: For 6 years. Key Key wordswordshave taught yet ever never since for already + 一段时间We _ only _ 100 trees so far. (ans
11、wer ) Key Key wordswordshave planted yet ever never since for just already so far 到目前为止Key Key wordswordsyet ever never since for just before already so far in the past 10 years twice 也可以是其他表示次数的词how long He has bought the book. He has bought the book for a week. He has had the book for a week.buyha
12、vecome /go/get tobe injoin be inbe a memberleave be away borrow keep begin be on finish be over die be dead reture be back She has bought the computer for two years. hadbuyhave/has hadHow long have you come to the United States？ been income tohave/has been inbuyhave/has hadAnn has gone to China sinc
13、e three months ago. been income tohave/has been inbuyhave/has hadgo tohave/has been inMy brother has joined the army for five years. been inbeen a soldier come tohave/has been inbuyhave/has hadgo tohave/has been ingot tohave/has been injoin have/has been inhave/has been a soldier I have left Shangha
14、i for 3 days. been away for 3 days. come tohave/has been inbuyhave/has hadgo tohave/has been ingot tohave/has been injoin have/has been inhave/has been a soldier leave have/has been away I have borrowed the dictionary since 3 days ago . kept come tohave/has been inbuyhave/has hadgo tohave/has been i
15、ngot tohave/has been injoin have/has been inhave/has been a soldier leave have/has been away borrow have/has kept The film has begun for 10 minutes. been on come tohave/has been inbuyhave/has hadgo tohave/has been ingot tohave/has been injoin have/has been inhave/has been a soldier leave have/has been away borrow have/has kept begin have/has been on The concert has fini
