内容正文:
Unit 5 Into the world
Period Ⅱ Using language——Grammar & Vocabulary
Grammar(定语从句2)
课前自主导引
[观察句子,总结规律]
①Somehow they manage to travel around 4,000 kilometres south and find their way to places where they will spend the winter.
②The solution to the mystery of the monarch's amazing ability comes at a time when it is in serious trouble.
③Unfortunately, human activity is the main reason why the monarch numbers are falling.
[我的研究成果]
通过观察可知:
(1)句①中定语从句的引导词是关系 ,在定语从句中充当 状语,定语从句修饰表示 的名词places。
(2)句②中定语从句的引导词是关系 ,在定语从句中充当 状语,定语从句修饰表示 的名词time。
(3)句③中定语从句的引导词是关系 ,在定语从句中充当 状语,定语从句修饰表示 的名词reason。
答案:(1)副词;地点;地点 (2)副词;时间;时间
(3)副词;原因;原因
精讲课时语法
关系副词的用法
(1)when指时间,在从句中作时间状语。先行词通常为表示时间的名词,如:time, day, week, year等。
I cannot forget the day when I first saw you.
我永远不会忘记第一次见到你的日子。
(2)where指地点,在从句中作地点状语。先行词通常有:place, street, house, city, country以及一些抽象意义的名词,如 point, case, position, condition, situation等。
This is the house where they lived a wee