人教版初二英语下册Unit-10复习学案（无答案）

1、 课文学习。 二、语法学习：现在完成时。 1. Concept 表示过去发生或已经完成的某一动作对现在造成的影响或结果，或从过去开始一直延续到现在的动作或保存的状态，或开始于过去持续到现在(也许还会继续进行下去)的动作或状态。 常和for, since引导的表示一段时间的时间状语连用，如“for+时间段”、“since+过去时间点”、“since+过去时的从句”、“since+一段时间+ago”，且for与since引导的时间状语可以相互转换。谓语动词多用延续性动词。 2. Structure: S+have/has+P.P+... ◎deformation a. 否定式: haven't, hasn't b. 一般疑问句: ——Have/Has+S+P.P+...? —Yes, S have/has. No, S haven't/hasn't. c. 特殊疑问句: 疑问词+have/has+S+P.P+... How long have you had this phone? 你的手机用多久了？ 3. for & since (1)Sentence Patterns a. It is/has been+时间段+since+the adverbial of time/clause b. This is the first (second...) time that+clause *that从句通常使用现在完成时 It is four days since last Friday. 从上周五到现在已经四天了。 This is the first time that Jenny has been to China. 这是珍妮第一次来中国。 (2)Similarities between for and since a. or与since都能与现在完成时连用 b. 二者可转换：for+一段时间=since+一段时间+ago He has been here for five years. =He has been here since five years ago.