一、四级精彩套句展示

It is necessary that effective actions be taken to prevent this problem.

省略，在语言中，尤其在对话中是一种常见的现象，它可以使语气明了。英语里被省略部分一般可以在句子中补上。本句是省略should的虚拟语气，完整句为It is necessary that effective actions should be taken to prevent this problem. 这种对虚拟语气的省略在四级作文句子里面广为存在，

又如：It is hoped that great efforts should be directed to (expended on / focused on) finding (developing / improving)…中的should也可省略。

二、语法精讲

1. 简介

句子中的某一成分省略的现象，在语言当中广泛存在，汉语当中也有。比如：一班的学生比二班的多。本句中在“二班的”后面就省略了“学生”一词，因为根据语境，该词我们已经可以推理得知，在语言中为了避免麻烦，将其省略。

大家可能会说：“四级考试中我就担心字数凑不够，为什么还要学习省略呢？”字数的问题确实是我们必须面对的问题，但并不是四级考核的惟一标准。省略句的合理利用，会起到事半功倍的效果。首先，启用省略句虽然在字数上吃了点小亏，但是可以让句子更精炼流畅，可谓舍一而得十；另外，很多考生为了凑字数，啰里啰嗦，让评卷老师味同嚼蜡，这时你的省略句就可能会如一缕春风，好处自不用多言。

2. 四级必考句型



(1) Although many have tried, few have succeeded in attempts to .

【分析】本句中tried后的宾语可根据后半句的语义推测得知，所以可以省略，避免重复。

Although many have tried, few have succeeded in attempts to find perfect solutions.

(2) , be it , will bring a lot of happiness into our lives.

【分析】本句是一个超难句型，中间一节省略了whether和might，并进行了倒装，将“be it”恢复后应为whether it might be。Be it…，可译为“比方说”，用来给出更多细节。

The application of electric power, be it to light our rooms or to listen to music, will bring a lot of happiness to our lives.

(3) Christie stared angrily at her boss and turned away, as though to go out of the office.

【分析】as though引导方式状语从句，谓语常用虚拟语气，本句中主句的主语与从句的主语相同，故从句中的主语和谓语省略，即省略了she wanted；如果补全，即为：as though she wanted to go out of the office.