1 定语从句（ Attributive clause）学案一、定义：定语从句（ The Attributive Clause ）或称为____________。定语从句在句子中作定语，用来修饰一个名词、名词词组或者代词。被修饰的名词、 名词词组或代词叫做__________；在先行词和定语从句之间起连接作用的词叫做___________。引导词可分为“ ________”和“___________”。二、限制性定语从句和非限制性定语从句（1）限制性定语从句是先行词不可缺少的部分，去掉它主句意思往往不明确；非限制性定语从句是先行词的附加说明，去掉了也不会影响主句的意思，它与主句之间通常用逗号分开。He has two sons, who work in the same company. (He has only two sons) 他有两个儿子， 他们在同一家公司工作。（_____________）He has two sons who work in the same company.（Perhaps he has more than two sons.）他有两个在同一家公司里工作的儿子。（_______________）（2）非限定性定语从句还能将整个主句作为先行词, 对其进行修饰 , 这时从句谓语动词要用第三人称单数；例如：He seems not to have caught what I meant, which greatly upsets me. 他似乎没理解我的意思，这使我心烦。★★说明：在非限定性定语从句中：①关系代词that 和关系副词why 不能引导非限定性定语从句。②关系代词和关系副词在任何情况下都不省略。三、关系代词和关系副词关 系 代 词例句That 在从句中做主语或宾语指物It ’s a question that needs careful consideration.The house (that) they built in 1990 stayed up in the earthquake. 指人The girl (that) we saw yesterday is Tom’s sisterWhich 在从句中做主语或宾语指物They needed a plant which didn't need as much water as rice. The farm (which) we visited yesterday is located in the suburb of Beijing. Who, whom 指人He is the man who wants to see you. 作主语2 在从句中分别作主语或宾语The man to whom you spoke was a scientist. 作宾语Whose 在从句中作定语指人或物Edison is a great inventor whose fame is world-wide. Please pass me the book whose cover（=of which the cover/the cover of which ）is green. ★ 注意：当关系代词在从句中作宾语时，可...
