Unit 6 Section 3 Grammar—定语从句(3)-【赢在微点】轻松课堂2023-2024学年新教材高中英语必修第一册（外研版2019）

Section 3　Grammar—定语从句(3) 语法图解 观察句子 1.These terraces were built by the local ethnic groups to whom Guangxi is home. 2.This forms clouds from which rain falls down onto the mountain terraces once again. 3.These terraces also provide a perfect environment for birds and fish, some of which feed on insects that can harm the rice crops. 4.Building the terraces therefore meant that they could increase the areas in which they could grow rice. 我的领悟 1.“介词+关系代词”中的关系代词可以是which或whom,指人用whom,如句1;指物用which,如句2,3,4。 2.介词的判断可以根据固定短语,如句1中的短语be home to。  一、基本形式 1.“介词+which/whom”既可引导限制性定语从句,也可引导非限制性定语从句;先行词指物时,关系代词用which;先行词指人时,关系代词用whom;关系代词在从句中作宾语可以省略,但当介词放在关系代词之前时,关系代词不能省略。 ①Do not refuse to help those with whom you are not familiar.不要拒绝帮助你不熟悉的人。 ②He bought the car for more than $20,000, with which his father was angry.他花2万多美元买了这辆车,他父亲对此很生气。 ③She still remembers the day on which she won the prize.她仍然记得她获奖的那一天。 2.“the+名词+of which/whom”结构引导的定语从句,一般为非限制性定语从句。该结构中的名词和后面的关系代词为所属关系。 This is the book the cover of which is designed by Mr. Jones.这本书的封面是由琼斯先生设计的。 3.“表示全部或部分的词语+of which/whom”结构引导的定语从句。常见的表示部分的词或结构有:不定代词(all, both, none, some, most, several等);数词(基数词、序数词、百分数、分数);the+形容词最高级/比较级。 ①John invited about 40 people to his wedding, most of whom are family members.约翰邀请了大约40人参加他的婚礼,其中大部分是家族成员。 ②The football team has 15 members, the oldest of whom is 25 years old.这支足球队有15人,其中年龄最大的25岁。 ③I have bought many books, most of which are novels.我买了很多书,大多数是小说。 【微练1】　用适当的关系词填空 ①This is the house, of which the window broke last night. ②He lived in a big house, in front of which stood a big tall tree. ③I have an honest friend, with whom I shared my experiences. 二、介词的确定 “介词+which/whom”引导的定语从句中介词的确定: (1)根据从句中动词、形容词等与介词的习惯搭配来确定。 Do you know the girl with/to whom the teacher talked just now?你认识刚才和老师谈话的那个女孩吗?(talk作“交谈”讲时,常与with或to搭配) (2)根据语意表达的需要来确定。 Knowledge is the wings with which we realize our dreams.知识是我们借以实现梦想的翅膀。(with表示用某种手段、工具) 【微练2】　用适当的关系词填空 ①I walked in our garden, in which my children were pla