Unit 1 Section 4 Grammar—非限制性定语从句（讲解Word）2021-2022学年新教材高中英语选择性必修第一册【赢在微点】轻松课堂（外研版）

Section 4　Grammar—非限制性定语从句 语法图解 观察句子 1．The project, which lasted two months, cost more than $2 million. 2．She has an older brother, who is an editor. 3．He went to the beautiful city, as had been expected. 4．Mr Smith, from whom I have learned a lot, is a famous scientist. 5．The play, whose style is rigidly formal, is typical of the period. 6．She will put off the meeting until the day after tomorrow, when she will be free. 7．We went to Shanghai, where we lived for six years. 8．There are 30 chairs in the small hall, most of which are new. 我的领悟 非限制性定语从句在句中主要起补充说明作用，在非限制性定语从句与主句之间往往有逗号隔开，从句独立存在，如果把从句去掉，一般不会影响整个句子的意思。引导非限制性定语从句的关系词有_who;_whom;_as;_which;_when;_where等。 1．who引导的非限制性定语从句 Our guide, who was a French Canadian, was an excellent cook. 我们的向导，一个法裔加拿大人，擅长烹调。 2．whom引导的非限制性定语从句 关系代词whom用于指人，在句中作动词宾语和介词宾语，作介词宾语时，介词可位于句末。 Peter, whom you met in London, is now back in Paris. 彼得现在回巴黎了，你在伦敦见过他。 3．whose引导的非限制性定语从句 whose是关系代词who的所有格形式，在从句中作定语。whose通常指人，也可指动物或无生命的事物。 The boy, whose father is an engineer, studies very hard. 那位小男孩学习很努力，他的父亲是位工程师。 4．which引导的非限制性定语从句 关系代词which在非限制性定语从句中所指代和修饰的可以是主句中的名词、形容词、短语、其他从句或整个主句，在从句中作主语、动词宾语、介词宾语或表语。 (1)which指代主句中的名词，被指代的名词包括表示物、婴儿或动物的名词、表示单数意义的集体名词以及表示职业、品格等的名词。 These apple trees, which I planted three years ago, have not borne any fruit. 这些苹果树是我三年前栽的，还没有结过果实。 (2)which指代主句中的形容词。 She was very patient towards the children, which her husband seldom was. 她对孩子们很耐心，她丈夫却很少这样。 (3)which指代主句中的某个从句。 He said that he had never seen her before, which was not true. 他说以前从没见过她，这不是真的。 (4)which指代整个主句。 In the presence of so many people he was little tense, which was understandable. 在那么多人面前他有点紧张，这是可以理解的。 【小练】　完成句子 ①水是一种清澈的液体，有许多用途。 Water, which is a clear liquid,_has many uses. ②她总是马虎大意，我们可不应该这样。 She is always careless, which we should not be. 5．as引导的非限制性定语从句 as引导非限制性定语从句时，代替整个主句，对其进行说明但通常用于像as we all know, as it is known, as is known to all, as is said above, as is mentioned above, as is usual, as is often the case, as is reported in the newspaper等句式中。as