英语四级真题阅读长难句分析（20）

 英语四级真题阅读长难句分析（20） 78. Traffic control systems and methods of construction developed under the interstate program soon influenced highway construction around the world, and were invaluable¹ in improving the condition of urban streets and traffic patterns. (2006年6月)

【分析】本句为简单句。句子主干为 system and methods influenced construction and were invaluable。第二个and连接两个并列谓语。developed under the interstate program 是过去分词短语作后置定语，修饰 systems和methods。

【译文】在州际公路项目下发展的交通控制系统以及建筑方式很快影响到了世界范围公路的建设，并为改善城市街道和交通模式起到了重要作用。

79. By opening the North American continent, highways have enabled consumer goods and services to reach people in remote and rural areas of the country, spurred the growth of suburbs, and provided people with greater options in terms of jobs, access to cultural programs, health care, and other benefits. (2006年6月)

【分析】本句为简单句。句子主干为highways have enabled…to reach people, spurred the growth, and provided people with options。By opening the North American continent 是方式状语。

【译文】通过开通北美洲路线，公路使得消费品和服务能够到达住在边远地区和农村地区的人们那里，刺激周边地区经济发展，为人们提供更多选择，如工作、文化活动、保健及其他福利。

80. The technological² advances made it possible for the middle classes to enjoy what had once been affordable³ only to the very rich. (2006年6月)

【分析】本句为复合句。句子主干为technological advances made it possible to enjoy…。it作形式宾语，真正的宾语是to enjoy what had once been affordable only to the very rich。what 引导的从句作enjoy的宾语。possible 是made的宾语补足语。

【译文】技术上的进步使中产阶级也能享受到那些原来只有有钱人才负担得起的东西。

81. The clock, called Sleep Smart, measures your sleep cycle, and waits for you to be in your lightest phase of sleep before rousing you. (2006年6月)

【分析】本句为简单句。句子主干为 The clock measures cycle and waits，两个谓语并列平行。called Sleep Smart 是过去分词短语作定语，修饰 clock, 表示被动。现在分词短语 before rousing you 作时间状语，相当于一个从句：before it rouses you。

【译文】这种称做“睡精灵”的闹钟可以测量睡眠周期，等待人们进入浅眠状态后才将其唤醒。

1 invaluable   

adj.无价的，非常宝贵的，极为贵重的

参考例句：

• A computer would have been invaluable for this job.一台计算机对这个工作的作用会是无法估计的。
• This information was invaluable to him.这个消息对他来说是非常宝贵的。

2 technological   

adj.技术的；工艺的

参考例句：

• A successful company must keep up with the pace of technological change.一家成功的公司必须得跟上技术变革的步伐。
• Today,the pace of life is increasing with technological advancements.当今， 随着科技进步，生活节奏不断增快。

3 affordable   

adj.支付得起的，不太昂贵的

参考例句：

• The rent for the four-roomed house is affordable.四居室房屋的房租付得起。
• There are few affordable apartments in big cities.在大城市中没有几所公寓是便宜的。