Unit 3 Conservation Lesson 1 Focus on language 非限定性定语从句课件 -2023-2024学年高中英语北师大版（2019）选择性必修第一册

Conservation Unit 3 Lesson 1 Focus on language Relative Clauses (4) - Defining and Non-Defining Clauses 1 LOREM IPSUM DOLOR SIT AMET, TJBT 1. Extinctions, where entire species are wiped out, are not unusual in our Earth's history. 2. These include the third mass extinction, known as the “Great Dying”, which killed 90% to 96% of all species. 3. And the fifth event, which occurred 66 million years ago, caused the death of the dinosaurs. Have a 非限制性定语从句 Non-defining attributive clauses 1. 非限制性定语从句中关系词的使用规则； 2. 非限制性定语从句与限制性定语从句的异同。 (1) Beijing, which is the capital of China, has a very long history. (2) This is New York, which I have visited for several times. (3) He seems not to have grasped what I meant, which greatly upsets me. (4) He was late again, which made the teacher very unhappy. 注：which引导的非限制性定语从句，其先行词可以是主句中的一个名词（指物），也可以是整个句子；which在从句中可作主语、宾语或定语等，不可省略。 which指Beijing，在从句中作主语 which指New York, 在从句作宾语，不可省略 which指前面的整个主句, 在从句作主语 which指前面的整个主句，在从句作主语 TJBT (1) Taiwan belongs to China, as is known. (2) Things will turn out contrary to one's wishes, as/which is often the case. (3) As the saying goes, “A year's work begins with spring.” 注：as可以像which 一样引导一个定语从句修饰整个先行主句，而不是某一个单词，常常可以译为“正如，正像；这”。 as是关系词中唯一可以置于句首的关系词。 众所周知，台湾是属于中国的。 事与愿违，这是常有的事。 正如俗语所说，一年之计在于春。 (1) The car,____________ I paid a lot of money, is now out of date. (2) I suggest you go to a specialist, _______________ you can get answers to most of your questions. (3) In this chapter, one of our problems is to discover the principles ______________ these tests are based. 2. 介词 + 关系代词也可引导非限制性定语从句，但在这种定语从句中，介词通常前置,关系代词也不可省略。 for which from whom on which (1) St Petersburg,________ is a very beautiful city, was once called Leningrad. (2) Yesterday I met Li Ping, __________ seemed to be verybusy. (3) He came to the United States in 1914, _______World War Ⅰ broke out. (4) Singapore, ____________ I have lived ten years, is a nice place. (5) The Queen will visit the town in May, ___________ she will open th