UNIT 3 Section Ⅳ GRAMMAR & WRITING(课件)-【高考领航】2023-2024学年高中英语选择性必修第一册同步核心辅导与测评（北师大版）

Section Ⅳ　GRAMMAR & WRITING 1 课时规范训练 课前预习·基础认知 写作素养·读写结合 课堂探究·重难突破 [探究发现] 写出句子中的定语从句，并说明是限制性定语从句还是非限制性定语从句 1．These include the third mass extinction，known as the “Great Dying”，which killed 90% to 96% of all species. _____________________________________________________________ 2．The rate at which this is now happening is cause for concern. ___________________________________________________________ 课前预习·基础认知 (一)Grammar——限制性和非限制性定语从句 which killed 90% to 96% of all species；非限制性定语从句 at which this is now happening；限制性定语从句 1 课时规范训练 课前预习·基础认知 写作素养·读写结合 课堂探究·重难突破 3．A 2015 study by scientists who were based at Brown University and Duke University in the US，looked at how quickly species die out due to natural causes. ____________________________________________________________________________ 4．There is a long list of reasons why so many species are dying out. __________________________________________________ 5．If a sixth mass extinction occurs，scientists who have studied the issue believe that up to three quarters of all species could die out. ______________________________________________ who were based at Brown University and Duke University in the US；限制 性定语从句 why so many species are dying out；限制性定语从句 who have studied the issue；限制性定语从句 1 课时规范训练 课前预习·基础认知 写作素养·读写结合 课堂探究·重难突破 6．We need to take steps to save endangered species including setting up special areas where plants and animals can be protected. _________________________________________________________ [思考发现] 非限制性定语从句中的关系词不用____，也不能________。 where plants and animals can be protected；限制性定语从句 that 省略 1 课时规范训练 课前预习·基础认知 写作素养·读写结合 课堂探究·重难突破 限制性和非限制性定语从句 一、结构 定语从句修饰主句中的名词成分(主语、宾语或者表语)，其引导词的辨别方式在限制性与非限制性定语从句中没有区别。 限制性与非限制性定语从句主要区别如下： 课堂探究·重难突破 语 法 精 析 1 课时规范训练 课前预习·基础认知 写作素养·读写结合 课堂探究·重难突破   限制性定语从句 非限制性定语从句 1 从句不能省略，如果省略整个句子意思不完整 从句可以省略，如果省略整个句子意思仍然完整 2 可以用that引导 不可以用that引导 3 引导词有时可以省略 引导词不可以省略 4 主句与从句不需要用逗号隔开 主句与从句需要用逗号隔开 5 从句只修饰先行词 从句既可以修饰先行词，也可以修饰整个句子或句子的一部分 6 不能修饰一个事件 可以修饰一个事件 1 课时规范训练 课前预习·基础认知 写作素养·读写结合