初中现在完成时讲解(完整版)

1、The present perfect tense，present perfect tense现在完成时，主语have/has过去分词法(PP)，助词，无意义，现在完成时的结构，Winter has already，主语have/has过去分词法(PP)，否定形式havent (have not)过去分词法hasnt (has not)过去分词法，疑问句在词组中加入语气动词have/has，现在完成了I have planted all the trees。he/shehas planted all the trees。they have planted all the trees。区分hav

2、e和has的用途，主题是第三人称单数动词用法has，1)表示到目前为止完成或刚刚完成的动作。now web have planted all the trees . he has just comback . they have built many buildings in this city。现在完成时使用，2)表示过去发生的动作，强调对结果或当前的影响。Someone has broken the window。(窗户现在坏了)I have already lost the key。(我现在没有钥匙了)I havent read that book yet .(不理解书的内容)I hav

3、e just cleaned my hands。(手干净)，经常与already(已)、just(刚才)、ever(一次)等一起使用，already:经常用于肯定的句子。yet:经常用于否定句，疑问句的末尾。3)意思是从过去到现在持续的行动或状态，总是和包括现在在内的一定时间内的副词一起使用。Shehas learned English for 5 years。he has lived in beijin since 5 years ago。Since:(之后)1)since时间点he has stayed here Since 5 o clock . 2)Since期间ago he has

4、stayed here Since 5 hours ago . 3)Since子句for :(最长)for持续时间he has kept the book for 2 weeks。since，for的用法：for或since填充空格，brown has had his TV _ _ _ _ _ 15years .I ve taken driving lessons _ _ _ _ _ _ _ last month . my sis er cell phone _ _ _ _ _ a month . my friends hav，for，since，for，for，since，注意：作为时间副词

5、的所有句子现在并不能理解完成时一般过去和现在完成时的差异。I worked here for more than twenty years。(我不再在这工作了)I have worked here for more than twenty years .(我现在还在这工作)，疑难点，have been to和have gone to的区别，我的father has gone to Shang hai for a meeting。他已经去了上海。我的father has been to Shang hai for a meeting。他(去过一次)上海。She has been to China

6、。她去过中国。人回来了have been to someplace。去过某个地方。已经回来了。has gone to some place。有人去了某个地方，还没有回来。she has gone to China last week。上周她去了上海。(人可能回来了，也可能没有回来)用have/has been to，have/has gone to填空：1。where is your brother？-he _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ the shop . he ll be backsoon . 2 .-_ _ _ _ _ _ _ _ _ the-yes，I _

7、 _ _ _ _ _ _ _ _ _ _ new York twice . 3 .-here you are at last！Where _ _ _ _ _ you _ _ _ _？-I _ _ _ _ _ _ _ _ _ _ _ London . 4 .-David _ _ _ _ _ _ _ _ _ _ _ ostraia。-I m sure he s already arrived . 5 .-is benny here？-no，he _ _ _ _ _ _ _ _ _ _ _ _ _ _ the school library . he left five minutes ago，Has

8、 gonghe _ _ _ _ _ _ _ _ _ _(go)to school on foot every day . 10 . _ _ _ _ _ _ _ _(find)11.if it _ _ _ _ _ _ _(be)fine tomorrow，ill go with you . 12 . the students _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _the monkey _ _ _ _ _ _ _ _ _ _ _ _(climb)the tree . 14 . my mother _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

9、 _ _ _ _ _ _ _ _ _ _ _ _(see)it anywhere？goes、have、found、is、were reading、is climbing、is coming、have、seen、1。I _ _ _ _ already _ _ _ _ _ _(see)the film。I _ _ _ _ _ _ _ _ _ _ _(see)it last week . 2 . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ itnot yet . 3 . my father _ _ _ just _ _(come)back from work。he is tired now.4. wheres Li Ming？he _ _ _ _ _ _ _ _ _ _ _(go)to the teacher s office . 5 . I _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ tofor two weeks . 8 . I _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _(fin