Unit 1 People of Achievement定语从句一、定语从句的种类根据定语从句与先行词之间关系的紧密程度，我们将定语从句分为限制性定语从句和非限制性定语从句两种。【观察例句】This is the computer (that/which) he bought for his son yesterday.这是他昨天为儿子买的电脑。I will show you to the supermarket where you can find everything you want.我带你去一家超市，在那里你能找到你想要的一切东西。He is English, which I know from his accent.他是英国人，那是我通过他的口音知道的。This is our headmaster, who I think has something important to tell you.这是我们的校长，我认为他有一些重要的事情要告诉你。【归纳用法】① 限制性定语从句是先行词在意义上不可缺少的定语，用于修饰和限定先行词。如果去掉，主句的意思就不完整。这种从句和主句的关系十分密切，两者之间不用逗号分开；关系代词在从句中作宾语时可以省略。引导限制性定语从句的关系代词有 who, whom, whose, that, which, as；关系副词有 where, when, why。② 非限制性定语从句和主句的关系不是十分密切，只是对先行词或主句作些附加说明，如果去掉，主句的意思仍然完整。这种从句和主句之间往往用逗号分开。引导非限制性定语从句的关系词与引导限制性定语从句的关系词略有不同。除 that 和 why 不能引导非限制性定语从句外，其他都可以。[即学即练 1]——用适当的关系词填空①Holly, is from Australia, has a good command of Chinese.②The dictionary, our teacher bought yesterday, is helpful to us.③I am looking forward to the day my daughter can read this book and know my feelings for her.④Tu Youyou was awarded the Nobel Prize, is considered one of the highest international honours a person can receive.⑤Davis wanted to visit the farm the seawater rice was grown.[答案] ① who ② which ③ when ④ which ⑤ where二、限制性定语从句与非限制性定语从句的区别1．形式不同【观察例句】Here is the man who has been punished by the boss.这就是那个被老板惩罚的人。(限制性定语从句)The project, which lasted three years, cost no less than $1 billion...
