高中英语词汇公开课课件(原创).ppt

Which word comes to your mind when you see the picture? It is useless asking her for help，she is always the last to help others. 译文_______________________ We found it useless to persuade him to go with us . 译文____________________________? It is no use trying 译文_____________________________ 用法：it is useless to do/doing sth it is no use doing sth compete vi.比赛，竞争compete(竞争)→complete ( ) 1）派生词：competition n. 竞争；competitor n. 竞争者 搭配：compete against／with sb. in sth. ／for sth. 在某方面／为得到某物与某人竞争 The world’s best athletes compete Olympic Games. The little girl competed _____her brother___that cakes. This not only drew public attention to research into back injures but also encouraged a lot of people living with all kinds of problems. 译文：这不仅_________________________，还鼓舞了很多有各种问题的人。 莎士比亚不但是作家而且还是演员 Shakespeare _________________________. * Unit 2 New words skilful 1. skillful adj.灵巧的，熟练的。 skill(n. 技术)+-ful(形容词后缀)→灵巧的，熟练的。 1）同义词；skilled adj. 熟练的 2）搭配：be skillful at sth／doing sth. 在……方面很熟练。 他擅长教学 ————————————————————— 3）辨析：skillful 和 skilled Skillful：强调手的灵巧 Skilled：强调专门技术 A______job He is skillfull at teaching. skilled The boy is 18 years old He can not take care of himself. Which word comes to your mind when you see the picture and the phrase? useless useless adj. 无用的。无效的. useful:有用的 use(n. 用处)+-less(否定后缀，构成形容词)+无用的；无效的 否定前缀主要有dis-, il-, im-, in-, ir-和un-，可译成汉语“非”、“无”、“不（是）”、“未 1)dis-常加在名词、形容词、动词之前。disagreement ___________ disappear ______ disadvantage ___________dishonest __________ dislike ______ 2) im-常加在以字母m-, p-开头的形容词之 immoral _________???? impossible ________impolite _____________ 3)un-常加在名词、形容词、副词之前 unhappiness_______ unusual _________ unimportant ________ unfriendly __________ 分歧；不一致 消失 不利条件；缺点 不诚实的 不喜欢 不道德的 不可能的 无礼的；粗鲁的 不幸福 不寻常的；罕见的 不重要的 不友好的 unhealthy _________________ uncrowded _________ unable ___________unfair