Unit 6 Crossing Cultures 状语从句讲解与练习 2025-2026学年人教版英语八年级下册

Unit5 Crossing Cultures语法讲解与练习

语法精讲 so ... that,unless,as soon as引导的状语从句

一、语法概述

在复合句中，用作状语的句子叫作状语从句。so…that,unless,as soon as分别引导结果状语从句、条件状语从句和时间状语从句。

二、so ... that,unless,as soon as引导状语从句的用法

引导词	用法及示例
so ... that “如此⋯以至于⋯”	*so+形容词/副词+ that从句 *so+形容词+a/ an+可数名词单数+ that从句 *so+ many/ few+可数名词复数+ that从句 *so+ much/ little+不可数名词+ that从句 【口诀】“多多少少(many/ much/ few/ little)要用so” She is so beautiful a girl that we all like her. 她是如此漂亮的一个女孩，以至于我们都喜欢她。
unless “除非；如果不”	相当于if…not.引导条件状语从句，句中的谓语动词常用一般现在时代替一般将来时，即遵循“主将从现”原则。 If it doesn't rain tomorrow, we will go swimming. = Unless it rains tomorrow, we will go swimming. 如果明天不下雨，我们将去游泳。
as soon as “一⋯就⋯”	引导时间状语从句，若主句是一般将来时，从句用一般现在时表示将来，即遵循“主将从现”原则；若主句是一般过去时或过去将来时，从句用一般过去时。 I will do my homework as soon as I finish the meal.

我一吃完饭就会做作业。

 

三、拓展延伸

1.在so…that中,当that引导的结果状语从句是肯定句且从句主语与主句主语相同时,so…that可以与…enough to do进行转换；当that引导的结果状语从句是否定句时,可与too…to…或not…enough to do进行转换。

He is so strong that he can carry the box.

= He is strong enough to carry the box.

他如此强壮，能搬动这个箱子。

Jimmy is so young that he can't go to school.

= Jimmy is too young to go to school.

= Jimmy is not old enough to go to school.

吉米(年龄)太小了，不能去上学。

2. such…that也可以引导结果状语从句，其结构为：

such+a/an+形容词+可数名词单数+that从句

such+形容词+可数名词复数+that从句

such+形容词+不可数名词+that从句

They are such good students that the teacher likes them.

他们是很好的学生，所以老师喜欢他们。

 

课后作业

一、用方框中所给词或短语完成句子

as soon as, so… that, unless