UNIT 6 Section Ⅱ GRAMMAR(Ⅰ)-【金版新学案】2023-2024学年新教材高一英语必修第二册同步课堂高效讲义教师用书（北师大版2019）

Section Ⅱ　GRAMMAR(Ⅰ) “介词＋关系代词”引导的定语从句 教材示例 分析下列教材原句中的加黑部分并体会它们的语法功能 1．Later，she studied Chinese medicine for two and a half years with experts in the field from whom she gained a deep knowledge about traditional practices. 2．They did not have enough staff，and the laboratory in which they worked had poor air quality. 我的发现 1．关系代词在定语从句中作介词的宾语时，从句常由“介词＋which/whom”引导。 2．若介词放在关系代词前，关系代词指物时只能用 which；关系代词指人时只能用 whom。 一、关系代词的确定 　“介词＋关系代词”既可以引导限制性定语从句，也可以引导非限制性定语从句。在此结构中，先行词指人时关系代词用whom，不可以用who或that；先行词指物时关系代词用which，不能用that。但如果介词后置，则不受这种限制。 Do you know the girl to whom our teacher is talking? ＝ Do you know the girl (that/who/whom) our teacher is talking to? 你认识正和我们老师谈话的那个女孩吗？ The school in which my friend once studied is very famous.＝ The school (that/which) my friend once studied in is very famous. 我的朋友曾经就读的那所学校很有名。 ◎巧学活用1 用适当的“介词＋关系代词”填空 ①Many lessons are now available online，from which students can choose for free. ②In the end，it was Becky to whom he turned for a gentle word and a smile. 二、介词的选取 “介词＋关系代词”结构中介词的选用，或根据先行词的习惯搭配，或根据定语从句中某些单词或短语的习惯搭配而定或根据上下文要表达的具体意思。具体用法如下： 学生用书↓第98页 1.根据定语从句修饰的先行词的习惯搭配来确定介词。 Do you still remember the day on which we met for the first time？你还记得我们第一次见面的那一天吗？(on the day) 2．根据定语从句中某些单词或短语的习惯搭配来确定介词。有时候，这个介词可能就是作定语从句谓语的短语动词中的一个习惯搭配，如choose from中的from等。 Is this the car for which you paid a high price? 这就是你花高价买的那辆汽车吗？(pay for) This is the computer on which I spent 3，000 yuan. 这就是我花3 000元买的电脑。(spend money on sth) The two things about/of which he was not sure were the grammar and some of the idioms. 他不确定的两项是语法和一些习语。(be sure about/of) 3．根据上下文要表达的具体意思来确定介词。有些句子的先行词完全一样，这时，需要根据句子所要表达的意思选用不同的介词。 This is the pilot with whom my brother has worked for ten years.(相当于My brother has worked with the pilot for ten years.) 这就是和我弟弟一起工作了十年的那位飞行员。 This is the pilot by whom my son was saved.(相当于My son was saved by the pilot.) 这就是救了我儿子的那位飞行员。 ◎巧学活用2 单句语法填空 ①William Hastie once suggested that history informs us of past mistakes from which we can learn without repeat