(
课件网) Present perfect tense (1) 现在完成时(1) 能够理解现在完成时的意义和用法，总结现在完成时的语法规则。 能够用现在完成时进行句子写作。 能够用现在完成时改写句子。 adj. 完成时的 perfect present perfect 现在完成式 past perfect 过去完成式 n. 一排，一行 row There is a row of trees in front of the house. 房子前面有一排树。 n.身高；高，高度 height Please state your height and weight. 请报一下你的身高和体重。 She is the same height as her sister. 她和她姐姐一样高。 Read the sentences from the reading passage and summarise the grammar rules. (a) I haven’t told Maddie the whole story yet. (b) I have already learnt that I am what I am. Now find one more sentences with these structures in the reading passage. I haven’t told Maddie yet how she has changed me. 现在完成时(1) 规则形式：动词过去分词的规则构成与其 过去式的构成相同。 现在完成时的构成： 助动词have / has +动词的过去分词 work → worked, pollute → polluted，plan → planned，carry → carried等。 动词的过去分词： 不规则形式：不规则动词的过去分词需牢 记。 be - was / were – been do - did – done eat - ate – eaten go - went - gone see - saw – seen find - found – found have-had–had make - made - made put - put – put let - let – let become-became-become grow-grew-grown hit-hit-hit hold-held-held leave-left-left rise-rose-risen send-sent-sent begin-began-begun break-broke-broken bring-brought-brought build – built – built buy - bought – bought catch - caught – caught come - came - come cost - cost – cost cut - cut – cut drink-drank–drunk fall - fell - fallen feel - felt – felt forget-forgot – forgotten get -got- gotten give-gave-given keep-kept-kept know-knew-known lose-lost-lost read-read-read run-ran-run say-said -said 现在完成时还可表示到目前为止已经完成的事情。 现在完成时的用法: 现在完成时可表示过去发生或已经完成的动作对现在造成的影响或结果。 e.g. The children have read the book. (强调孩子们已经了解了这本书的大概内容。) His elder brother has become a doctor. (强调他的哥哥现在是一名医生。) e.g. My aunt has travelled all over the world. e.g. The children have not / haven’t read the book. His elder brother has not / hasn’t become a doctor. 现在完成时的其它句式结构 否定句：主语+ have / has + not +动词的过去分词（+其它）. (其中have not = haven’t; has not = hasn’t) 一般疑问句及其简略回答： Have / Has +主语+动词的过去分词（+其它） 肯定回答：Yes, 主语(人称代词主格) + have / has. 否定回答：No, 主语(人称代词主格) + haven’t / hasn’t. e.g. —Have the children read the book —Yes, they have. / No, they haven’t. —Has his elder brother become a doctor —Yes, he has. / No, he hasn’t. 现在完成时常与 just, already 或 yet 等表示时间的状语连用。 e.g. I have just heard the news. Astronauts have already been to the moon. We have just started to explore other planets. 现在完成时的标志词 可以看出，just 用来表示 “刚刚”，already 用来表示 “已经”，两者都用于肯定句中，一般是置于 have /has 之后。在否定句中则可以用 yet，表示 “还未”，有 “以后可 ... ...
