专题4.3 Unit 4 Grammar & Writing-学易试题君之同步课堂帮帮帮2019-2020学年高一英语人教版（必修1）

Unit 4 Earthquakes Grammar：定语从句(I) 关系代词引导的定语从句 定语从句在整个句子中担任定语，修饰一个名词或代词，被修饰的名词或代词叫先行词。定语从句通常出现在先行词之后，由关系词(关系代词或关系副词)引出。 1. 关系词 关系代词：who, whom, whose, that, which, as(句子中缺主要成分：主语、宾语、定语、表语、同位语、补语时)。 关系副词：when, where, why(句子中缺次要成分：状语时)。 2. 关系代词引导的定语从句 关系代词引导定语从句，代替先行词，并在句中充当主语、宾语、定语等主要成分。 (1)who, whom, that 指代人，who, that在从句中可作主语、宾语；whom在从句中作宾语。 ☛Is he the man who/that wants to see you? 他是你想要见的那个人吗？(who/that在从句中作主语) ☛He is the man who/whom/ that I saw yesterday. 他是昨天我见到的那个人。(who/whom/that在从句中作宾语) (2)whose 用来指人或物，只用作定语, 若指物，它还可以同of which互换。 ☛They rushed over to help the man whose car had broken down. 他们冲过去帮助那个车出故障的人。 ☛Please pass me the book whose cover is green/the cover of which is green. 请递给我那本封面是绿色的书。 (3)which, that指代物，在从句中可作主语、宾语。 ☛The package (which / that) you are carrying is about to come unwrapped. 你正在搬的那个包裹快要散开了。(which / that在从句中作宾语，可省略) (4)关系代词在定语从句中作主语时，从句谓语动词的人称和数要和先行词保持一致。 ☛Is he the man who wants to see you? 他是想要见你的那个人吗？ 3. 只能用that不能用which的情况 (1)先行词是everything, nothing