Unit 3 Grammar-【帮课堂】2023-2024学年高二英语选择性必修二同步学与练（译林版2020）

第8讲 选择性必修二Unit3 Grammar 目标任务 课程标准 学习目标 围绕人与社会的主题语境，依托语篇，通过一系列英语学习活动，发展英语学科核心素养。 1．在语篇中观察、探究语法现象，自主归纳语法规则，并在新的语境和活动中正确使用语法。 2．通过训练与本单元语法相关的练习加强学生的英语运用意识。 02 预习导学 （一）课前阅读： 本单元的语法是现在完成进行时：“Present perfect continuous tense” Below is a personal account given by a girl who is equipped with a robotic hand. Find the sentences that use the present perfect continuous tense.（黄色标注部分） After I lost my right hand in a car accident two years ago, I began to withdraw into myself, believing I would never be able to lead a normal life again. I was equipped with an artificial hand, but it did not feel like part of me. Even simple things like getting dressed were unbelievably difficult. Three months ago, however, all that changed when I was given the chance to test a new robotic hand. Scientists have been making great progress in robotic technology in recent years, and their work on robotic limbs has really changed my life. With my new hand, I can move my individual fingers and hold on to small things like pens and pencils. More amazingly, my robotic hand is capable of feeling varying degrees of pressure, just like a real hand. In addition, it looks very lifelike with special rubber used on the outside.Over the past three months I have been testing out the limits of what I can do with my new hand, and it constantly surprises me. I have rediscovered hobbies I had enjoyed before my accident. For example, I have been cooking for my family again since I got my new hand. Not only can I do more, but I have also become more confident and outgoing. I’m so grateful for all the new possibilities my robotic hand has opened up. （二）基础梳理 一、现在完成进行时的定义 现在完成进行时表示某动作从过去某个时间开始，一直延续到现在，并且还有可能持续下去。如： Those cats have been screaming for hours. 那些猫叫了半天了。 We have been waiting for him for two hours. 我们等他等了两个小时。 The dollar has been climbing steadily all week. 整个星期美元一直在稳步增值。 二、现在完成进行时的结构 现在完成进行时由“have / has been + 现在分词”构成。如： Sales have been dropping off badly. 销售量一直减少得很厉害。 I have been waiting f