四级Most roads, bridges, transit, water systems, the electric grid, and communications networks were installed 50 to 100 years ago, and they are largely taken for granted until they fail.

大多数道路、桥梁、交通、供水系统、电网和通信网络都是50至100年前安装的，在出现故障之前，它们基本上被视为理所当然。

2017年6月阅读原文

六级There are some very commendable characteristics of the CFL [compact fluorescent ( ' , 荧光的 ) light bulb], yet the selection of any light source remains inseparable from the luminaire ( ' , 照明装置 ) that houses it, along with the space in which both arc installed, and lighting requirements that need to be satisfied.

紧凑型荧光灯（CFL）有一些值得称赞的特性，荧光的 ) 灯泡]，但任何光源的选择都离不开灯具（“，照明装置 ) 其中包括安装电弧的空间以及需要满足的照明要求。

2015年12月阅读原文

六级There are some very commendable characteristics of the CFL (compact fluorescent light bulb), yet the selection of any light source remains inseparable from the luminaire that houses it, along with the space in which both arc installed, and lighting requir

紧凑型荧光灯泡（CFL）有一些值得称赞的特性，但任何光源的选择都离不开其所在的灯具，以及安装电弧的空间和照明要求

2015年12月六级真题（第一套）阅读 Section B

六级Having to install a different app for each smart appliance in your home is annoying; it would be nicer if you could manage everything together.

必须为家中的每个智能设备安装不同的应用程序是很烦人的；如果你能一起管理一切就更好了。

2016年12月阅读原文

四级So any parents who install Smart Wheel can keep track of the teens' driving habits.

所以，任何安装智能车轮的家长都可以了解青少年的驾驶习惯。

2018年6月四级真题（第二套）听力 Section C

六级A CFL cannot be simply installed in an incandescent fixture and then expected to produce a visual appearance that is more than washed out, foggy, and dim.

CFL不能简单地安装在白炽灯夹具中，然后期望产生的视觉外观不仅仅是褪色、模糊和暗淡。

2015年12月阅读原文

六级Having to install a different app for each smart appliance in your home is annoying; it would be nicer if you could manage everything together.

必须为家中的每个智能设备安装不同的应用程序是很烦人的；如果你能一起管理一切就更好了。

2016年12月六级真题（第二套）阅读 Section B

四级It's certainly new territory, especially as home security cameras become easier to install, says lizzie Post, president of the Emily Post Institute, America's foremost manners advisors.

美国最重要的礼仪顾问艾米丽·波斯特研究所（Emily Post Institute）的主席莉齐·波斯特（lizzie Post）说，这无疑是一个新领域，尤其是当家庭安全摄像头变得更容易安装时。

2018年12月四级真题（第二套）阅读 Section C

六级More than 90 meters of cable were incorrectly installed.

超过90米的电缆安装不正确。

2019年12月六级真题（第二套）听力 Section C

四级The panels are also designed so that they can be installed directly on top of existing roadways, making them relatively cheap and easy to install.

面板的设计也使其可以直接安装在现有道路的顶部，从而使其相对便宜且易于安装。

2017年12月四级真题（第二套）听力 Section A

四级However, this is the first time a panel has been designed to be laid directly on top of existing roads and the first project to install the panels on public highways.

然而，这是第一次在现有道路上直接铺设面板，也是第一个在公路上安装面板的项目。

2017年12月四级真题（第二套）听力 Section A

六级” There are some very commendable characteristics of the CFL [compact fluorescent(焚光的）light bulb], yet the selection of any light source remains inseparable from the luminaire(照明装置）that houses it, along with the space in which both are installed, and lighting requirements that need to be satisfied.

“紧凑型荧光灯有一些值得称赞的特性(焚光的）灯泡]，但任何光源的选择都与灯具密不可分(照明装置）容纳它的空间，以及两者安装的空间和需要满足的照明要求。

2015年12月大学英语六级考试真题（二）

六级Several countries have used subsidies to jump-start the market, including Japan, where almost 1 million heat pumps have been installed in the past two years to heat water for showers and hot tubs.

包括日本在内的几个国家已经利用补贴启动了市场，在过去两年里，日本安装了近100万台热泵，为淋浴和热水浴缸供暖。

2007年12月英语六级真题

六级Shenwu puts up the initial investment to install a heat exchanger that preheats the air going into the furnace，slashing the client’s fuel costs .

神武公司投入了最初的投资，安装了一个热交换器，对进入熔炉的空气进行预热，从而大幅削减了客户的燃料成本。

2007年12月英语六级真题

四级In the last 30 years, however, a secret-revelation (揭示) machine has been installed in 98 percent of American homes.

然而，在过去的30年里，一个秘密的启示(揭示) 这台机器已经安装在98%的美国家庭中。

2003年9月大学英语四级(CET-4)真题

四级“It's certainly new territory, especially as home security cameras become easier to install,” says Lizzie Post, president of the Emily Post Institute, America's foremost manners advisors.

“这当然是一个新领域，尤其是随着家庭安全摄像头变得更容易安装，”美国最重要的礼仪顾问艾米丽·波斯特研究所所长莉齐·波斯特说。

2018年12月大学英语四级考试真题（第2套）