【成才之路】2014-2015学年高中英语：unit4earthquakessection2课件人教版必修1.ppt

成才之路·英语;Earthquakes;Section Ⅱ Learning about Language;课前新知预习 ;课前新知预习;观察下列句子，写出黑体词(关系代词)所指代的词及在定语从句中所作的成分 ①A huge crack that was eight kilometers long and thirty meters wide cut across houses, roads and canals. (指代_______，作______) ②Then later that afternoon, another big quake which was almost as strong as the first one shook Tangshan. (指代_______，作______) ③I dont know the girl whom you talked to just now. (指代_______，作______);④The number of people who were killed or injured reached more than 400,000. (指代_______，作______) ⑤Workers built shelters for survivors whose homes had been destroyed. (指代__________，作______);课堂要点探究;一、基础点拨 1．定义及分类。;2.关系代词的用法。;This is the film which / that created a great sensation. (which / that 在定语从句中作主语) 这就是那部引起很大轰动的电影。 The book (which/that) they sent me is very good. (which/that在定语从句中作宾语)他们寄给我的书非常好。 The man who/that stole your car has been arrested. (who/that在定语从句中作主语) 偷你汽车的人已经被捕获了。;The man (whom/that) I saw told me to come here.(whom/that在定语从句中作宾语) 我见到的那个人让我到这里来。 Please pass me the dictionary whose cover is black. (whose在定语从句中作定语)请把黑色封面的字典递给我。;名师点津 (1)关系代词that可指人，可与关系词which/who/whom互换，但是不可直接放在介词的后面作宾语。 (2)作宾语或表语时who与whom可互换，若紧跟在介词后面则使用whom；whom在从句中不作主语。 (3)关系代词作宾语时可省略(与介词连用时除外)。 (4)关系代词在从句中作主语时，谓语动词的单复数取决于先行词。;(5)如果whose所修饰的是无生命的名词，常可用“the＋名词＋of which(指物)”或“of＋which＋the＋名词”代替“whose＋名词”。 This is the office in which I used to work. 这就是我过去工作过的办公室。 This is the building whose windows(the windows of which/of which the windows) were all painted green. 这就是窗户都被漆成绿色的那幢楼。;二、难点突破 关系词只用that，而不用which或who的情况： 1．当先行词为all, everything, nothing, anything, little, much等不定代词或先行词被这些词修饰时。 All that can be done has been done. 一切能做的都已经做了。 2．当先行词是序数词、形容词最高级或先行词被序数词或形容词最高级修饰时。 This is the most beautiful park that I have visited. 这是我游览过的最漂亮的公园。;3．当先行词被the only，the very, the last修饰时。 Chatting was the only thing that interested her. 聊天是她唯一感兴趣的事。 4．当先行词既指人，又指物时。 She took photographs of the things and people that she was interested in. 她把她感兴趣的人和物都拍摄了下来。 5．当主语是以who或which开头的疑问句时，