Unit 5 Travels Broadens the Mind 语法条件状语从句课件-2022-2023学年中职英语外研版（2021）基础模块2

Unit 5 Travel Broadens the Mind Grammar in Use Adverbial clause of condition （条件状语从句） 1 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 Lead in———填空，思考什么是状语？ 1. I was reading_____ ______ . 我昨晚正在阅读。 2. We play football ___ _______ _______. 我们在操场踢足球。 3.We will go home _______ _______. 我们骑车回家。 4.He speaks English ______ ______. 他英语说的很好。 5.We went to France ___ ______ _______.我们去法国是为了学习法语。 last night 时间 very well to learn French on the playground by bike 程度 地点 目的 状语定义： 说明动作发生的时间、地点、方式、程度、目的、原因、频率等。 方式 中职英语（外研）·基础模块2 什么叫做状语从句：_________________________________________ 1. She didn’t come because she was ill. 2. We was reading the books when our mom came in. 3.If it rains , we will stay at home. 在复合句中作状语成分的从句叫作状语从句。 原因状语从句 时间状语从句 条件状语从句 条件状语从句：在句子中作条件状语的从句称为条件状语从句，表示主句动作或状态是在什么条件或情况下发生的。 2023/5/19 3 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 中职英语（外研）·基础模块2 课堂小结 if 条件状语从句的引导词 unless even if as/so long as “如果” “除非” “即使” “即使” “只要” in case 万一；如果 2023/5/19 4 单击此处编辑母版文本样式 第二级 第三级 第四级 第五级 一、if “如果”引导真实条件状语从句 1.If it is fine tomorrow, we will go to the park. 2.I will go to the library if I finish my homework before ten o'clock. 用法一：（主将从现） 3.If you finish your homework, you can go home. 4.You must stop if the traffic light is red. 用法二：（主情从现） 5. Don't go and play football if you don't finish your homework. 6. Please call me if he comes next Sunday. 用法三：（主祈从现） if引导的非真实条件状语从句如果与事实不符,应用虚拟语气。 虚拟条件从句(if) 主句 与现在事实相反的假设 过去式 be----were should/would/could/ might + do 与过去事实相反的假设 had done should/would/could/ might + have done 与将来事实相反的假设 过去式（be----were) should do were to do should/would/could/ might + do 中职英语（外研）·基础模块2 1.You will be late unless you leave immediately立刻. You will be late, if you don't leave immediately. 2.I shall go tomorrow unless it rains. =I shall go tomorrow,__________________. 二、unless“除非;如果不”引导条件状语从句 =“if...not” 三、as/so long as“只要”，引导条件状语从句。 1.We will go as long as the weather is good. 2.You may take this book away so long as you return归还 it on time. if