Unit7 Section2 Grammar 课件2025-2026学年沪教版英语八年级上册

Unit 7 The secret of memory Section 2 Grammar 2024新版沪教牛津8年级上册 海上列车 在列车消失之前，学生快速回答所需要填的空 Conditional Sentences 概念 条件状语从句： 1.从句在句中作条件状语成分。 2.由从属连词if,unless,as/so long as等引导，与主句 连接。 3.从句位于句首，常用逗号与主句分开，若在句末，其 前一般不加逗号。 条件状语从句的时态问题 As soon as I pass the exam,my mom will give me 100yuan as a reward. 条件状语从句十主将从现 I will play badminton with my friends if it doesn't rain today. 女女女注意 主句不遵循“主将从现”的情况 1.主句中出现情态动词 e.g.If you have questions,you can ask me. 2.主句是祈使句 e.g.Ask me if you have questions. 3.主句是客观事实，用一般现在时 e.g.If you put the paper into a fire,it burns. 条件状语从句与祈使句的转换 1.祈使句，+and+陈述句 =f引导的条件状语从句+陈述句 Get up before 5,and you'll see the beautiful sunrise. If you get up before 5,you'll see the beautiful sunrise.