高中英语 Unit 4 Friends forever Period Ⅱ Using language——Grammar Vocabulary教学案 外研版必修第一册-外研版高一第一册英语教学案

Period Ⅱ Using language——Grammar & Vocabulary Grammar(定语从句 1)课前自主预习[观察句子，总结规律]①The digital age also enables us to find people who share our interests, such as collecting model cars or playing an unusual instrument.②On social media sites, people tend to post only good things that make them appear happy and friendly.③Born in 476 BC, he came from a family which was very poor.④Do you know the girl whose English is excellent?⑤The woman (whom) you saw just now is our teacher. ⑥Nowadays, we can move around the world and still stay in touch with the people (that) we want to remain friends with.[我的发现]通过观察可知：(1)句①②③中画线部分的引导词是关系________，均在定语从句中充当________，________省略。(2)句④画线部分的引导词是关系________，在定语从句中充当________，________省略。(3)句⑤⑥画线部分的引导词是关系________，在定语从句中充当________，________省略。答案：(1)代词；主语；不可 (2)代词；定语；不可 (3)代词；宾语；可以精讲课时语法1.定语从句的定义与分类在复合句中，修饰某一名词或代词的从句叫定语从句。被修饰的名词或代词叫先行词，定语从句一般放在先行词的后面。根据定语从句与先行词的关系，定语从句可分为限制性定语从句和非限制性定语从句。前者紧跟先行词，主句与从句不用逗号分开，从句不可省去；后者主句与从句之间用逗号分开，起补充说明作用，如果省去，意思仍然完整。2．关系代词的用法(1)who 的用法：who 指人，在从句中可作主语、宾语和表语。1There is a girl who wants to see you.有个女孩儿想见你。(2)whom 的用法：whom 指人，在从句中作宾语，此时也可用 who 代替。The old man who/whom you saw yesterday is a thinker.你昨天见到的那位老人是位思想家。(3)whose 的用法：whose 既可指人也可指物，在从句中修饰名词作定语，相当于所修饰成分的前置所有格。它可以转化为“the＋名词＋of which/whom”和“of which/whom＋the＋名词”的形式。This is the scientist whose_name is known all over the country.＝This is the scientist the_name_of_whom is kn...