Unit 3 Part Ⅲ Grammar and usage & Integrated skills(课件)-【高考领航】2023-2024学年高中英语选择性必修第二册同步核心辅导与测评（译林版）

Part Ⅲ　Grammar and usage & Integrated skills 1 课时规范训练 语法精讲·难点透析 写作素养·读写结合 随堂训练·巩固提升 观察下列句中加黑的部分，然后完成后面的归纳。 ①(教材原文P30)Geneticists have been trying to identify which genes relate to which diseases，as they believe genome editing is an effective means of disease treatment and prevention. ②(教材原文P31)Despite the public argument over this technology，its possibilities have been creating much excitement throughout the entire medical community and beyond. 语法精讲·难点透析 第一板块　Grammar—The present perfect continuous tense 语 法 体 会 1 课时规范训练 语法精讲·难点透析 写作素养·读写结合 随堂训练·巩固提升 ③He has been writing a novel，which will be finished next month. ④I have been waiting for this chance ever since my accident，and I'm so grateful for all the new possibilities my robotic hand has opened up. ⑤I have been visiting my hometown recently，and it impresses me differently each time. ⑥I have visited my hometown recently，whose changes have left a deep impression on me. ⑦Recently she has always been helping me. ⑧Recently she has helped me a lot. 1 课时规范训练 语法精讲·难点透析 写作素养·读写结合 随堂训练·巩固提升 【自我归纳】 (1)由句①②③看出现在完成进行时的构成形式为： _________________________。 (2)比较句④中所使用的两种时态，___________________强调动作未完成；而______________________强调动作已经结束。 (3)比较句⑤⑥，_________________强调动作的重复，_______________可以表示一次性动作。 (4)比较句⑦⑧，_________________表示一种感情色彩；______________则陈述一种事实。 have/has＋been＋doing 现在完成进行时 现在完成时 现在完成进行时 现在完成时 现在完成进行时 现在完成时 1 课时规范训练 语法精讲·难点透析 写作素养·读写结合 随堂训练·巩固提升 知 识 精 要 1 课时规范训练 语法精讲·难点透析 写作素养·读写结合 随堂训练·巩固提升 一、现在完成进行时 1．现在完成进行时的构成：助动词have/has＋been＋v.-ing形式。 2．现在完成进行时的用法： (1)表示动作或状态从过去某一时间开始一直持续到说这件事时，动作或状态刚刚结束或还有可能继续下去。这种时态常和all the time，this week，this month，all day，all the morning，these days，recently等时间状语连用，还常与since和for构成的时间状语连用。 The students have been working hard on their lessons and their efforts will be rewarded with success in the end. 学生们一直在努力学习功课，他们的努力最终将会获得成功的回报。 语 法 精 析 1 课时规范训练 语法精讲·难点透析 写作素养·读写结合 随堂训练·巩固提升 (2)表示一直到说话时为止的一段时间内一再重复的动作。 We've all along been making mistakes like this. 我们一直犯这样的错误。 (3)表示感情色彩。 You know，you really hav