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阅读理解。

Robots performing tasks according to a predetermined set of instructions are nothing new.But robots able to learn how to cook by watching videos are a completely different approach, which is conducted by a group of researchers at the University of Maryland.

If you have posted a video of your favorite recipe on the popular website YouTube, chances are that it will be used by a robot.University of Maryland's professor Yiannis Aloimonos, leader of the group, said “There exists a large amount of video information on the Internet that our robots can capitalize_on.”

“At present, the videos are fed electronically,”said research scientist Cornelia Fermuller.“Originally, we took our own videos, our cameras looking at us doing the cooking,”she explained.“And, as the robot advances, it reacts to good quality videos.And it will react to even lower quality homemade videos.”

So far, the robot named Julia can make a simple salad by breaking each task into basic parts, such as grasping a spoon, bringing it to the bowl, stirring the salad and observing the results.

But why teach a robot how to understand a video when it can easily follow a fixed program?Aloimonos believes predetermined instructions lack flexibility.He thinks one of the problems is how to make the robot understand and use what it learns during a certain task, the so?called feedback (反馈意见); another is the introduction of language.

“I believe it will take quite some time before the robots are able to understand metaphorical (比喻性的) language,”he added.“But,” he said,“we don't need that to create a new world where the robots will be working for us.”

1.The underlined phrase “capitalize on” in Paragraph 2 probably can be replaced by ________.

A.take hold of B.make use of

C.keep track of D.catch sight of

2.Aloimonos probably agrees that at present the robot ________.

A.can not fully digest what it learns

B.can not make a simple salad

C.can follow home?made videos

D.can understand metaphorical language

3.Robots are taught to understand a video mainly because ________.

A.they can easily follow fixed programs

B.they are smart enough to learn cooking

C.cooking videos are more interesting to watch

D.predetermined instructions are not flexible

4.Which of the following might best serve as the title of the passage?

A.Robots Creating a New World

B.Robots Making Cooking Videos

C.Robots Learning to Cook by Watching Videos

D.Robots Performing Tasks by Following Instructions

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完形填空。

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Paris Fashion Week

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We all wish we had just a bit more time. Just think what you could do with an extra hour or two each day: you could finally stick to an exercise routine, or spring?clean the house, or write your novel, or learn the guitar and so on.

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When you've got a big task to focus on, let your calls go to voicemail. 4._ Wearing headphones makes it less likely that people will try to strike up a conversation.

5.

A few minutes chatting, browsing the web, and so on, can easily turn into hours of wasted time over the course of a day.

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