人教版英语八下unit10i’vehadthisbikesectiona-2课件

人教版英语八下unit10i’vehadthisbikesectiona-2课件内容摘要：

Mary has never been to the Great Wall. 玛丽从未去过长城。 (3). Have (has) been to 后面可接 次数 ， 表示去过某地几次。 如： I39。 ve been to Beijing three times. 我去过北京三次。 They have been to that village several times. 他们去过那个村庄好几次了。 (4). Have (has) gone to 意为“到某地去了”，表示到了某地或正在去某地的途中。 总之，说话时该人不在现场，一般 不用第一、二人称代词作主语。 如 : —Where is Tom? 汤姆在哪里。 —He has gone to the bookshop. 他到书店去了。 例如： He has gone to Hong Kong. 他到香港去了。 (他已前往香港 , 或在途中 , 或已到达。 说话人暗示他现在不在现场 ) He has been to Hong Kong. 他曾到过香港。 (说话人认为他过去到过香港 , 现在已不在该地。 言外之意他对香港有所了解 ) How long have you had that bike over there? I39。 ve had it for three years. How long has his son owned the train and railway set? He’s owned it since his fourth birthday. Have you ever played football? Yes, I did when I was little, but I haven39。 t played for a while now. Grammar Focus for 和 since 在现在完成时中的应用 for与 since都能与现在完成时连用，但区别较大： （ 1） for后须接“时间段” He has studied English for five years. 他学英语 5年了。 （ 2） since后须接“时间点” He has studied English since 1999. 他从 1999年开始学英语。 （ 3）二者可以转换 for + 一段时间 = since + 一段时间 + ago He has been here for five weeks. = He has been here since five weeks ago. 他到这儿已经有五个星期了。 如： He has taught here since he came to China. 自从他来到中国就在这儿教书。 We have been friends since we met in school. 我们从在学校见面起就成为了好朋友。 (4) since能引导时间状语从句 (主句用现在完成时，从句用一般过去时 )，而 for则不能。 （ 5） 现在完成时常用句型： ① It is (has been) +时间段 + since +时间状语或从句 It is four days since last Friday. 从上周五到现在已经四天了。 It has been two years since Jim came to Beijing. 吉姆来北京已经两年了。 ② This is the first (second…) time that + 从句 句型中的 that从句通常使用现在完成时。 如 ： This is the first time that Jenny and Danny have been to China. 这是珍妮和丹妮第一次来屮国。 This is the third time that I have seen Karen. 这是我第三次见到 Karen。 （ 6）均须与延续性动词连用，也可以与非延 续性动词的否定式连用。 如 : I have bought this puter since four years ago. ( ) I have had this puter since four years ago. (√) I haven’ t bought anything for two months.(√ ) I。