牛津译林版(2020)必修第三册Unit 1 Nature in the balance-Grammar and usage教案

Unit 1 Nature in the balance Grammar and usage教学设计 科目：英语 课题：Grammar and usage 课时：1课时 教学目标与核心素养： 知识目标：在语境中学习和理解省略的用法。 能力目标：获取更多主题语境的信息，加深对主题意义的理解。 情感目标：在新语境中应用省略句。 教学重难点 教学重点：理解省略的用法。 教学难点：识别省略，并了解常见的省略现象。 课前准备：多媒体，黑板，粉笔 教学过程： 一、Pre-reading 1. Greeting 2. Leading-in 教师活动：教师让学生阅读第6页的part A，并回答下列问题。 (1) What is the documentary about It's about environmental protection./It's about some of the worst environmental problems we are facing today. (2) How did Jack feel when watching the documentary He felt worried when watching the documentary. (3) What do the leading experts suggest doing to solve the environmental problems Some call for the application of modern technology, and others a change of lifestyle. 学生活动：完成第6页part A下面对话。 ②watch it ③I was ④call for ⑤Have you ⑥It/That 二、While-reading 学生活动：在教师的引导下，了解省略。 1.词法上的省略 动词不定式的省略 ①有些动词（词组），如want，wish，expect，hope，would like，try，forget等后接动词不定式作宾语时，为了避免重复，动词不定式符号to后面的内容常常被省略。 I asked him to eat out, but he didn't want to.我让他去外面吃，但他不想去。 You'd better not take medicine unless your doctor told you to. 除非医生叫你吃药，否则你最好不要吃药。 ②感官动词（词组）see，look at，hear，listen to，watch 等和使役动词make，let，have等后面作宾补的动词不定式要省略to，但在此类动词（词组）的被动语态中，to不可省略。 They made the boy go to bed early.他们让这个男孩儿早睡。 The boy was made to go to bed early.这个男孩儿被迫早睡。 ③当省略的动词不定式内含有be或作助动词用的have时，to后要保留be或have。 —Has Mike finished his project 迈克完成他的项目了吗 —He seems to have (finished his project). 他似乎已经完成了。 —Are you a farmer 你是农民吗 —No, but I used to be(a farmer).不是，但我过去是。 2.句法上的省略 （1）简单句中的省略 ①在口语中，某些句子成分可以省略。 (Will you) Have a drink 你喝饮料吗 (Is there)Anything else to say 还有别的要说吗 ②在对话中，针对问题进行回答时，答语常常省略与问句中相同的部分。 —Did you go to the museum yesterday 你昨天去博物馆了吗？ —No, I didn't (go to the museum yesterday). 没有，我昨天没去博物馆。 （2）并列句中的省略 ①省略共同的主语或宾语。 Mr Li picked up an ID card on the road and (Mr Li) handed it to a policeman. 李先生在路上捡了一张身份证，并把它交给了警察。 Normally many bacteria are present in (the human body) and on the human body. 通常在人体内和人体上都存在许多细菌。 ②省略由“助动词+主动词”构成的复合谓语。 John was given a pen and Alice a book. 给了约翰一支钢笔，给了爱丽丝一本书。（第二分句中省略了was given）。 Tom has written a poem and Peter a short story. 汤姆写了一首诗。彼得写了一部短篇小说。（第二分句中省略了has written）。 ③若主语与谓语相同，则省略后一分句的主语和谓语。 His advice made me happy, but (his advice made) Jim angry. 他的建议使我高兴，却使吉姆生气。 （3）状语从句中的省略 ①在 when, ... ...