九年级英语全册Unit 6导学案.docVIP

英语九年级上册第九单元教学案 执笔人 Section A 第一课时 课前预习 翻译下列句子或短语be used for ______ be invented by _________ light bulb_________ operate on sb._______ microwave oven_________ 陷入 （ ） 意外的（ ） 用这种方法 （ ） When was the telephone invented ? _____________________________________ What are they used for ? ______________________________ What do you think is the most useful invention ? ________________________________ I ‘d like to have a radio because I could listen to music all day. ______________________________________ 重点讲解及课堂练习 一、重点单词 1、invent v. 发明，创造 例：Do know who invented the computer? 你知道谁发明了计算机吗？ [拓展]invention n. 发明（物），创造物 例：Here are some important inventions in human history. 这是人类历史上的一些重要发明。 Inventor n. 发明家，该词是由动词invent+or 构成的名词。 例：Edison was a great American inventor. 爱迪生是一位伟大的美国发明家。 Operate v. 操作，操纵，开动；运转，工作；管理，经营；起作用，奏效；动手术，开刀 例：①This machine does not operate smoothly. 这台机器运转不灵。 ②The doctor operated on the baby’s eyes. 这位医生给这个婴儿做眼部手术。 自我测评： 1.Thomas Edison was a great American (invent). He had more than one thousand (invent) in his life. 2.The boy is badly hurt, so he needs an (手术) at once. 3.Personal computers about 30 years ago. A. invented B. was invented C. were invented D. inventing 4.These new types of computers are easy . A. operation B. to operate C. to operation D. operation 5.When was umbrella ? A./;invented B. a;discovered C. an; discovered D. the; invented 6.The doctor operated him at once and he at last. A. with; was saved B. on; saved C. on; was saved D. with; saved 二、重要短语 1、be used for 被用于……，其中的for是介词，因此其后跟名词或动词作介词宾语。 例：A knife is used for cutting. 刀是用来切东西的。 [辩析]be used for, be used as , be used by ，be used to do sth., used to do sth. 与 be /become /get used to doing sth. (1) be used for 被用于……，被用来做……，强调用途或作用。 (2 )be used as （被）作为……而使用，强调被当作工具或手段来用。 (3) be used by 被……使用，by后跟