2024年中考英语难点语法条件状语从句：“主将从现”&巩固练习学案（无答案）

中考英语难点语法条件状语从句：“主将从现”&巩固练习 相信大家对于“主将从现”这一说法并不陌生，中学老师给我们的例子“如果明天不下雨，那么我们就去野炊吧”从我念初中开始至今还仍然在使用，但是说到底你是否了解其中的用法呢？下面就由我来给大家一一详述。 首先我们知道一个句子的成分包含，“主谓宾定状补”，那么在句中作状语的从句称为状语从句。状语从句由从属连词引导，它可以表示时间、地点、原因、目的、结果、条件、让步、比较和方式。今天给大家详细讲解其中的一种条件状语从句，它常由if，unless，as long as等引导。 一、由if引导的条件状语从句，意为“如果” 1.He will come if you invite him. --如果你邀请他的话，他将会来的。 2.They won't go to the beach if it rains. --如果下雨的话，他们将不会去沙滩。 3.Your parents will be happy if you study hard. --如果你学习努力的话，你的父母将会很开心。 主句用一般将来时，if引导的条件状语从句用一般现在时。 这就是我们经常听到的“主将从现”，那么除了“主将从现”以外还存在“主情从现”“主祈从现”。 主句有情态动词，从句用一般现在时。 1. If you are hungry, you should eat something. 2. If you feel tired, you must have a rest. 主句是祈使句，从句用一般现在时。 1. Come with me if you have time 2. Don't be sad if you fail the exam. 接下来我们来做几个小练习吧！检测一下自己是否真正掌握知识呢！ Exercises：合并句子 I play basketball. My mother is angry. If I _____ basketball this weekend, my mother _____ angry. 2. The traffic light is red. You must stop. You _____ if the traffic light _____ red. 3. I get up late. Don't wait for me. _____ for me if I _____ up late. 答案： 1.play, will be 2.must stop, is 3.Don't wait, get 重点拓展：if从句还可以表示不可实现的条件或不存在的条件，即一种虚拟条件或者假设，从句多用一般过去时或过去完成时。 1. What would you do if you had a million dollars 如果你有100万美元你会做什么？ 2. If I were a boy -- Beyonce 除了if以外，还有unless，as long as等引导条件状语从句，它们同样遵循“主将从现”的规则，在这里就不加以赘述了，下面就以这些词的用法以例句的形式进行一下简单总结。 二、由unless引导的条件状语从句，意为“除非”，unless 等于if... not... 1.如果明天不下雨，我们就去远足。 If it doesn't rain tomorrow, we'll go hiking. =We'll go hiking unless it rains tomorrow. 2.如果你不把肉存放在冰箱，它就会变质。 If you don't keep the meat in the fridge, it goes bad. =Unless you keep the meat in the fridge, it goes bad. 三、由as long as 引导的条件状语从句，意为“只要” 1. As long as you love me. -- Justin Bieber 2. We'll go as long as the weather is good. --只要天气好我们就去。 3. But I think friends are like books -- you don't need a lot of them as long as they're good. --但我认为朋友就像是书--只要是好书，就不需要很多。 巩固练习 1.If you _____ to the party, you’ll have a great time. A. will go B. went C. go D. going 2. It will be a long time ____ Peter _____ his work. A. since, has finished B. after, finishes C. when, will finish D. before, finishes. 3. What will father _____ us from Japan A. take B. bring C. carry D. make 4. Weifang is famous _____ kites. A. for B. to C. on D. with 5．I ____ her the answer if she ____me. A. can tell, will ... ...