UNIT 3 Section Ⅲ　Grammar -【创新思维】2022-2023学年新教材高中英语选择性必修第一册同步导学案（北师大版）

SectionⅢ Grammar 北师英语选择性必修第一册 ·专项突破攻语法 ZHUANXIANGTUPO GONGYUFA 定语从句一限制性和非限制性定语从句 [语法体会] 诵读下列句子并感知加黑部分的共性 (I)[P52教材原文]Extinctions,.where entire species are wiped out,,are not unusual in our Earth's history. (2)[P52教材原文]In the last500 million years,there have been five times when life on Earth has almost ended 专项突破攻语法 质量评估提能力 北师英语选择性必修第一册 (3)[P52教材原文]These include the third mass extinction,known as the "Great Dying",which killed 90%to 96%of all species. (4)P52教材原文]And the fifth event,.which occurred66 million years ago,caused the death of the dinosaurs. (5)[P52教材原文]Although it is not unusual for species to die out naturally,the rate at which this is now happening is cause for concern. 专项突破攻语法 质量评估提能力 北师英语选择性必修第一册 (6)[P52一53教材原文]A2015 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,that is,the"background extinction rate”. (7)[P53教材原文]There is a long list of reasons why so many species are dying out:air and water pollution,forests being destroyed,factory farming and overfishing. 专项突破攻语法 质量评估提能力 北师英语选择性必修第一册 (8)[P53教材原文]For example,we need to take steps to save endangered species,including setting up special areas where plants and animals can be protected. 1.所有加黑部分的关系词都引导定语从句。 2.从句与主句之间不用逗号隔开为限制性定语从句；从句与主 句之间用逗号隔开为非限制性定语从句。 专项突破攻语法 质量评估提能力 ________________北英器选择性必修第一册 [知识精要] ―、限制性定语从句和非限制性定语从句的区别 根据定语从句与先行词之间关系的密切程度，定语从句可以分为限 制性定语从句与非限制性定语从句。 专项突破“攻语法质量评估提能力 北师英语选择性必修第一册 1.作用不同 限制性定语从句用于修饰先行词，具有限制作用，使先行词的含义 更具体、更明确，因此不可缺少，否则主句的意思就不完整或将失 去意义。非限制性定语从句与主句的关系不是十分密切，只是对先 行词作附加或补充性的说明，即使去掉，主句的意思仍然完整、清 楚。 专项突破攻语法 质量评估提能力 北师英语选择性必修第一册 DPeople who take physical exercise regularly live longer. 经常进行体育锻炼的人更长寿。（若把定语从句去掉，句子意义不完 整)（限制性定语从句） 2His daughter,who is in Shenzhen now,is coming home next week. 他女儿现在在深圳，下星期回家。（若把定语从句去掉，句子意义仍 然完整)（非限制性定语从句） 专项突破攻语法 质量评估提能力 北师英语选择性必修第一册 2.形式不同 限制性定语从句与主句之间不用逗号隔开；非限制性定语从句必须 用逗号和主句隔开。 3The book that/which you borrowed last week is really moving. 上周你借的那本