Module 3 Period Three-【步步高】2019版学案导学与随堂笔记英语（外研版必修4）

Period Three　Grammar & Writing 单元语法——条件状语从句和让步状语从句 Ⅰ.选词填空 1．If you say the word “communication”，most people think of words and sentences. 2．Although words and sentences are very important，we communicate with more than just spoken and written words. 3．I won’t say anything unless he asks me. 4．Whatever you do，don’t leave immediately after the meal is finished. 5．However hungry you are，you shouldn’t start to eat before your host does. Ⅱ.完成句子 1．只要你高兴，你干什么都无所谓。 As long as you’re happy，it doesn’t matter what you do. 2．他说他将出席这个会议，条件是没人让他发言。[来源:学_科_网Z_X_X_K] He said he would attend the meeting on condition that no one asked him to speak. 3．万一我忘记了，请提醒我一下。 In case I forget，please remind me about it. 4．不管航程多么短，你总是能在这架班机上吃点东西。 However/No matter how short the journey is，you always get something to eat on this airliner. 5．不管你忙不忙，都要参加这个典礼。 Whether you are busy or not，you have to attend the ceremony. 一、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。条件状语从句可置于句首，也可置于句尾，有时还可置于主语和谓语之间。 1．引导条件状语从句的常用引导词(组)为：if，unless，as/so long as，once，in case，on condition that，supposing (that)，providing (that)，provided (that)，given (that)等。在条件状语从句中，用一般现在时代替一般将来时，一般过去时代替过去将来时。 We’ll come over to see you on Wednesday if we have time.如果有空，我们星期三来看你。 I’ll lend the book to you on condition that you return it to me next week. 我可以把书借给你，条件是你下星期得还给我。 The sports meeting will begin tomorrow unless it rains.运动会明天将要开始，除非下雨。 2．真实条件句与非真实条件句 假设的情况有可能发生的条件句叫真实条件句；假设的情况完全是一种假设或发生的可能性不大的条件句则叫非真实条件句。 If it is fine next Sunday，we shall have a spring outing.(真实条件句)如果下星期日天气好，我们就去春游。 If we had more time yesterday，we could have finished the work.(非真实条件句) 如果昨天我们还有时间的话，我们就可以把工作做完了。 二、让步状语从句 在句子中作让步状语的从句称为让步状语从句。让步状语从句可置于句首，也可置于句尾，有时还可置于句中。 让步状语从句通常由下列词或短语引导：though，although，even though，even if，as，while，whether...or...，whether...or not，whatever，whichever，whoever，whomever，whenever，wherever，however，no matter＋疑问词等。 1．though，although和as (1)though与although几乎完全相同，though比although通俗，不如although正式，两者通常互换使用。though/although引导让步状语从句时，主句可用yet或still引导，更加强调对比性，但不可