初中英语知识点讲解.docx

第 1 页 共 en before appears in the countryside. 农村出现了前所未有的旺盛。(which / that在从句中作主语)
　　(2) The package (which / that) you are carrying is about to come unwrapped. 你拿那个包袱快要散开了。(which / that在从句中作宾语)
　　留意： 代表物时多用which，但在下列状况中用that而不用which：
　　a)先行词是anything, everything, nothing , none等不定代词时;
　　b)先行词由every, any, all, some, no, little, few, much等修饰时，这时的that常被省略;
　　c)先行词前有序数词或被形容词最高级修饰时;
　　d)先行词中既有人又有物时;
　　e)整个句中前面已有which，who,that时;
　　f)当先行词为物并作表语时;
　　g)先行词为one时;
　　h)先行词同时又被the only,the very,the same修饰时;
　　二、关系副词引导的定语从句
　　1、when指时间在定语从句中做时间状语也可做连接词用 　　I still remember the day when I first came to the school.
　　2、where指地点在定语从句中做地点状语 　　 Shanghai is the city where I was born.










　　3、why指缘由在定语从句中做缘由状语 ，用在reason 后面。 Please tell me the reason why you missed the plane.
　　初中英语学问点讲解：虚拟语气
　　一、条件状语从句
　　1、与现在事实相反
　　若与现在事实相反，虚拟语气的条件从句的谓语用过去式(be通常用were)，主句谓语用should (would, could, might)+动词原形。如：
　　If I were you, I would take an umbrella. 假如我是你，我会带把伞。(事实上我不行能是你)
　　If I knew her number I could ring her up. 要是我知道她的电话号码，我就可以给她打电话了。(事实上我不知道)