Question

The growth in skyscrapers (摩天大楼) worldwide, most of which have large glass panes, has led to a great need for window washers. Though the job, which earns workers as much as $35 an hour, can be lucrative, accidents are not uncommon. However, the dangerous chore may soon be done by Ozmo, an intelligent window cleaning robot, with humans supervising (监督) from the safety of the ground.

Much like humans, Ozmo, hanging off the sides of the building, uses its arms and brushes to clean the dirt and grime on the glass panes. A 3-D map of the building programmed into its system allows the robot to skillfully move up and down. Computer vision and touch sensors (传感器) enable it to move out of the way in case of unexpected events, such as the sudden opening of a window. And the robot will self-correct and move around it so as not to break a window.

Unlike other window washers, the robot cleaner does not require soap or Windex to clean the glass. Instead, it uses purified water (纯净水) and a process called reverse osmosis (反渗透) to do the job. It is environmentally friendly.

While it takes three cleaners 480 hours each to clean the windows of a 40-story glass building, the robot will single-handedly complete the task in just 80 hours. However, unlike other robots, Ozmo will not replace human workers, only making their jobs safer. Human workers will control the robot from below.

Whether Ozmo, which is still undergoing testing, docs as good a job as humans remains to be seen. * Past efforts to use a robot to do this dangerous job have not been successful, because the machines do not have the same eye as humans and often miss the soot (烟垢) collected on window corners.

1.The underlined word “lucrative” in the passant’ probably means “________”

A.安全的 B.危险的 C.赚钱的

2.The second paragraph mainly tells us

A.why Ozmo is much more intelligent than human workers

B.how Ozmo works to clean the glass smartly

C.what makes Ozmo an intelligent window cleaning robot

3.What does Ozmo use to clean the glass?

A.Purified water. B.Soap. C.Grime or soot.

4.To finish the task of cleaning the windows of a 40-story glass building, Ozmo spends ________ hours less than a cleaner.

A.560 B.400 C.1,360

5.Which of the following is TRUE about Ozmo?

A.As an intelligent window cleaning robot. Ozmo is successful.

B.Ozmo does harm to the environment while cleaning the window.

C.Ozmo can make human window washers do their jobs safely.

Answer

1.C

2.B

3.A

4.C

5.C

【解析】

这篇短文主要介绍了擦窗机器人——Ozmo。在摩天楼擦玻璃是件危险的事情，现在机器人Ozmo可以帮助人们完成这项危险的工作。但是Ozmo也有自己的缺点，还不能完全代替人类。

1.

词句猜测。根据上文“Though the job, which earns workers as much as $35 an hour”擦窗工人每小时能赚35美元。由此可知lucrative的意思是“获利的，赚钱的”。故选C。

2.

段落大意。A. why Ozmo is much more intelligent than human workers为什么奥兹莫比人类更聪明；how Ozmo works to clean the glass smartly奥兹莫如何巧妙地清洁玻璃；what makes Ozmo an intelligent window cleaning robot是什么让Ozmo成为智能擦窗机器人。通读整个第二段可知，本段主要介绍了Ozmo是如何巧妙地擦玻璃的。故选B。

3.

细节理解。根据文中“Unlike other window washers, the robot cleaner does not require soap or Windex to clean the glass. Instead, it uses purified water (纯净水) and a process called reverse osmosis (反渗透) to do the job.” 与其他窗户清洗机不同，机器人清洗机不需要肥皂或Windex来清洗玻璃。相反，它使用纯净水和一种叫做反渗透的工艺来完成这项工作。它是环保的。故选A。

4.

数字计算。根据文中“While it takes three cleaners 480 hours each to clean the windows of a 40-story glass building, the robot will single-handedly complete the task in just 80 hours.” 虽然一座40层的玻璃建筑的窗户需要3名清洁工每人480个小时来清洁，但机器人将在短短80小时内单枪匹马地完成这项任务。也就是一个擦窗工人需要1440小时。而Ozmo只用80小时。1440-80=1360。故选C。

5.

推理判断。根据文中“Past efforts to use a robot to do this dangerous job have not been successful,” 过去用机器人做这项危险工作的努力并没有成功。可知选项A“As an intelligent window cleaning robot. Ozmo is successful.”说法错误；根据文中“Instead, it uses purified water (纯净水) and a process called reverse osmosis (反渗透) to do the job. It is environmentally friendly.” 相反，它使用纯净水和一种叫做反渗透的工艺来完成这项工作。它是环保的。可知选项B“Ozmo does harm to the environment while cleaning the window”说法错误的。根据文中“However, unlike other robots, Ozmo will not replace human workers, only making their jobs safer.” 然而，与其他机器人不同，Ozmo不会取代人类工人，只会使他们的工作更安全。可知，选项C“Ozmo can make human window washers do their jobs safely.”是正确的。故选C。