6.3【重点语法】-2021-2022学年八年级英语下册链接教材精准变式练（人教版）

Unit 6 An old man tried to move the mountains. ( 教材 重点语法 知识链接 及典例解读 ) unless,as soon as 和so...that...引导的状语从句 【教材原句】 ①But unless he can hide his tail,he cannot turn himself into a man.但是如果他不能把尾巴藏起来，他就不能把自己变成人。 ②As soon as you wake up,you must go to the forest with your father.你们一醒来就必须和爸爸去森林里。 ③That bird's song is so beautiful that we should follow it.那只鸟的鸣唱如此动听，我们应该跟着它。 【句式结构】①unless作连词，意为“除非；如果不”，引导条件状语从句。在含有unless引导的条件状语 从句的主从复合句中，如果主句为一般将来时，从句用一般现在时表将来，即“主将从现”。unless 引导 的条件状语从句通常可以与if...not结构互相转换。 You will miss the bus unless you hurry up.你要是不快点就会错过公交车了。 Unless you help us,we will be lost.除非你帮助我们，否则我们会迷路的。 ＝If you don't help us,we will be lost.如果你不帮助我们，我们会迷路的。 ②as soon as 意为“一。。。··就···..·”，引导时间状语从句，含有该从句的主从复合句表示从句的动作一发 生，主句的动作随之发生。如果主句为一般现在时，从句经常用一般现在时表将来。 As soon as she arrives,I'll tell you.她一到我就告诉你。 ③so...that...引导结果状语从句，表示“如此······以至于······”，其中so是副词，常用来修饰形容词或副 词，that后接从句。 Li Lei runs so fast that I can't catch up with him.李雷（音译）跑得太快了，以至于我追不上他。 一、单项选择 1．   Mum turned off the light, we all fell into a deep sleep. A．As soon as B．If C．Although D．Even though 2．It’s _______ good weather ________ we want to have a picnic. A．so; that B．such; that C．too; / D．very; / 3．We take down our notes we can use them again. A．in order B．such that C．in order to D．so that 4．The mountain are________ big ________ it takes a long time to walk to the other side. A．so; that B．so; much C．very; that D．too; that 5．I won’t pass the exam ________ I work hard. A．when B．if C．unless D．until 6．The problems are ________ difficult ________ students can solve them. A．so; and few B．so; that little C．so; that few D．so; that a little 7．—What’s your plan for the summer holiday? —I’ll go to Beijing _______ the school term ends. A．in order that B．so that C．as soon as D．even though 8．The sports meeting will continue ___it rains this afternoon. A．if B．since C．as soon as D．unless 9．—Nancy ________ us a report as soon as she ________ tomorrow.  —How great! I will be there. A．gives; i