It's 时间 since 从句-2025-2026学年八年级英语下册句型辨析（北师大版）

初二下册北师大版 【寒假专版】 C版句型辨析 寒假专版 【C版句型辨析】It's+时间+since从句结 构精讲 初中英语·北师大版初二下册 句型辨析精讲 辨析一It's+时间+since从句vs时间段+has passed+since从句 维度 It's+时间+since从句 时间段+has passed+since从 句 核心含义表示”自从…以来已经多久 含义相同，表达方式更强调时 了” 间的流逝过程 句式结构It作形式主语，时间（如hree时间段（如Three years)作主 years))直接置于be动词后 语，后接has passed,since从 句置于句尾 时态要求since从句用一般过去时，主句since从句用一般过去时，主句 be动词常用is/was 用现在完成时(has passed) 例句对比 It's five years since we moved to this city..(自我们搬到这个城市已经五年了) Five years has passed since we moved to this city.(自从我们搬到这个城市，五年已经过去了) 真题链接（北师大版初二下册期末真题） ten years since my grandfather A.It's;died B.They're;has died C.Ten years;dies 答案：A解析：since从句需用一般过去时，排除B、C:表示”自从祖父去世已经十年了”用It's +时间+since从句结构，选A。 初二下册北师大版 【寒假专版】C版句型辨析 辨析二It's+时间+since从句vs时间+ago 维度 It's+时间+since从句 时间+ago 核心含义 强调从过去动作发生到现在 仅表示过去某个时间点，不强 的时间间隔 调与现在的关联 句式功能可独立成句，作主句 需与一般过去时连用，作时间 状语，不能独立成句 动词形式since从句用延续性动词时表 句中谓语动词用瞬间动词，表 示”不做某事已多久”，瞬间动示动作发生在”时间+g0”的 词表示”做某事已多久” 过去时间点 例句对比 It's two hours since he left..(他离开已经两小时了，left为瞬间动词) He left two hours ago.（他两小时前离开了) It's three years since she lived here.(她不住在这里已经三年了，lived为延续性动词) 真题链接（北师大版初二下册同步练习） How long has it been since you to this school? about three years ago A.come;For B.came;Since C.came;It was 答案：C解析：第一空sice从句用一般过去时，排除A:答句强调？三年前”这个过去时间点， 用It was.ago回答，选C。 综合训练 1.five years since we started learning English A.It's;began B.They're;have begun C.Five years;begin 2.-How long has it been since you to this city? -about two years ago. A.move:For 2 初二下册北师大版 【寒假专版】C版句型辨析 B.moved;Since C.moved;It was 3.She here for three years,and it's two years since she. A.lived;left B.has lived;left C.lived;has left 从It's...since../时间段+has passed since../时间+ago中选择合适的完成句子 1.three months we finished the project.We need to start a new one now. 2.My uncle bought this car.It still looks new. 3.six hours the plane took off.We are still waiting at the airport. 1.He left home five days ago.(用It's.since.改写) 2.Three years has passed since they got married..(用It's..since.改写) 3.It's two weeks since she started working here..(用时间段+has passed since.改写) I单项选择 1.A2.C3.A Ⅱ选短语填空/完成句子 1.It's;since 2.two years ago 3.Six hours has passed since II句型转换 1.It's five days since he left home. 2.It's three years since they got married. 3.Two weeks has passed since she started working here. 3