人教版英语八年级下册Unit8语法专项课件(现在完成时1) (共21张PPT).pptVIP

易错点 现在完成时/一般过去时用法不同 I saw this film yesterday. I have seen this film. （一般过去时：强调动作） （现在完成时：强调影响） 已经知道内容 易错点 现在完成时/一般过去时结构不同 现在完成时 一般过去时 肯定句： 主语 + have/ has + 过去分词 +... 肯定句：主语 + 过去式 +... 主语 + was/were + 表语. 否定句: 主语+haven’t ( have not) +过去分词+... 主语+hasn’t ( has not ) +过去分词+... 否定句： 主语 + did not (didn’t) + 动词原形 + … …was/were not （wasn’t/weren’t) + 表语. 疑问句:Have / Has+主语+过去分词...? 疑问句：Did + 主语 + 动词原形 + …? Was/Were + 主语 + 表语? 易错点 现在完成时经典例句： I have been to Australia before. I haven’t been to Australia before. Have you been to Australia before? 现在完成时/一般过去时结构不同 易错点 现在完成时/一般过去时结构不同 一般过去时经典例句： My father flew to Australia yesterday. My father didn’t fly to Australia yesterday. Did you father fly to Australia yesterday? 易错点 现在完成时/一般过去时标志词不同 现在完成时 一般过去时 副词作标志词：just, already, yet 过去时间点：just now, at that time, yesterday, this morning, three years ago since + 时间点/(时间段+ago)/一般过去时句子 for + 时间段 过去时间段：in the past, in + 过去的年份, last week, once upon a time等 表示次数的时间状语：once, twice, three times, ever, never 特殊结构： used to + 动词原形 （过去常常） 易错点 现在完成时/一般过去时标志词不同 She returned yesterday. There was a temple in the past. He has been in New York for many years. Have you ever been to Beijing？ （一般过去时） （现在完成时） 【典例1】He _______ in this factory for 20 years already. A. will work B. works C. has worked D. is working 考查时态。already为现在完成时标志词,且 for + 时间段表明对现在的“影响”，故选用现在完成时结构have/has done。 【典例2】—Is Richard still living here? —No, he ______ to Paris already. A. had moved B. moved C. will move D. has moved 考查时态。No说明Richard不在此处，且already为完成时标志词，选用现在完成时结构have/has done。 【典例3】Julie’s father ______ to London last month. He ______ there three times. A. went, had gone B. has gone, has been C. went, has been D. has been, had gone 考查时态。last month为一般过去时标志词，选用went；three times表明去伦敦的“结果”“影响”，选用现在完成时。 模板来自于 / * * * * * * * * * 初中英语人教版七年级下册 初中英语人教版八年级下册 初中英语外研版七年级下册 初中英语外研版八年级下册 初中英语仁爱版七年级下册 初中英语人教版七年级下册 初中英语人教版七年级下册