牛津译林版八年级下_Unit1_Past_and_present_Grammar_课件3(现在完成时态复习).ppt

Present perfect tense;The Present Perfect Tense (现在完成时）;二、现在完成时的构成;3现在完成时的一般疑问句 句型 Have/Has+主语+过去分词+…. Have you finished the work? Has she arrived here? Have they eaten supper? 4现在完成时的特殊疑问句 句型 特殊疑问词+have/has+主语+过去分词+……. How many times have you been to the Great Wall? How long have you known each other? What have you finished recently?;三、过去分词的构成;规则动词的过去分词的变化规律 1 一般情况下，动词词尾加?-ed?，如：?? work?---worked? play---played? want----wanted? act----acted? 2、以不发音的?-e?结尾动词，动词词尾加?-d，如：?? live---lived? move----moved? taste---tasted? hope---hoped?? 3、以辅音字母?+?y结尾的动词，把-y变为-i?再加-ed，如：?? study---studied? copy---copied? cry---cried? carry---carried?? 4、以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加?-ed，如：??stop?---stopped??;B 不规则动词的过去分词;; He speaks French so fluently. He learned it in Paris. He was there for two years.He has studied French. (他学过法语。)这句话所说明的结果是他现在懂法语。;这种用法常与already, just, yet, ever, never, before(句末)等连用. ;现在完成时的时间副词和时间短语:; - I have never been to the Great Wall. 我从未去过长城。;;注意：当在肯定陈述句中含有already或just 时，在转换成否定句或疑问句时，要把句中的already 或just 去掉，在句末加上yet. ;用法2：表示动作或状态从过去开始一直延续到现在甚至将来;Mike borrowed the books two days ago.;切记有些动词是非延续的，在此用法中要换成其相对应的延续性动词：;如: I havent seen him for two years. 我两年没有见过他了。;标志词：for +一段时间, since+过去的时间点, over these years, so far, in the past/last …years;三.表示人曾有过或到目前为止从未有过的经历.(到现在为止的生活经历）;Complete the sentences using the present perfect tense.;Complete the conversation using the correct forms of the verbs in brackets.; 1)?你已经收到你爸爸的来信了吗？ 2)?我已经很长时间没有看见我姑姑了。 3)??Simon曾经去过几次中国? 4)??她刚刚写好两篇文章。 5)??他们已经去电影院了。 6)??Smith夫妇还没有回来。 7)??自从上午9点你就在等他吗？ 8) 人们自从1998年开始使用这个新机场。 ;用正确时态填空 Hurry up! Lunch ________already _________(begin). ________ he ever _________(ride) a bike? Liming ________(hurt) his arm last week. He ________ already ________(stay) in bed for five days. Yesterday, she ________(buy) one book in the bookshop. She ___________ (not read) it since then. I ______