初中英语连词知识点：引导条件状语从句的连词
引导条件状语从句的连词(重点)：1）条件状语从句主要由if, unless, supposing(suppose)引导：
if: If it rains tomorrow , we will have to stay at home.
unless: I won't write unless he writes first.我不写信，除非他先给我写。
2）条件状语从句还有其他形式：(难点)
You will always have a home as long as I have anything.
只要我有家产，你就永远会有一个家。
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