C．can follow home­made videos

　　D．can understand metaphorical language

　　解析：选A　推理判断题。根据倒数第二段的最后一句可推知，Aloimonos可能认为目前该机器人还不能完全消化它学的东西。应选择A项。

　　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

　　解析：选D　细节理解题。根据倒数第二段的前两句"But why teach a robot ... a fixed program? Aloimonos believes predetermined instructions lack flexibility."可知，教机器人理解视频是因为预定指令不够灵活，应选择D项。

　　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

　　解析：选C　标题归纳题。文章主要介绍了通过观看视频学做饭的机器人，因此C项是最佳标题。

　　Ⅱ.语法填空

　　I was in trouble in overcoming my addiction to alcohol, and __1__ was my friend Mike. We never met each other until we came __2__ in the same treatment facility. Then we __3__ (be) out of the treatment center for about a year and returned to our life. Finally we became inseparable friends like brothers.

　　There was never a time __4__ I called him and he did not call me right back within a couple of __5__ (hour). We valued every chance we have to keep __6__ (we) both on the right track.

　　One day, I called Mike but he wasn't in. As usual, I had to leave a message, fully __7__ (expect) to heard from him later that evening or the next day. But I had not heard from him for nearly two days, and I became very __8__ (anxiety). On the third day, I received a message from Mike's wife that she said Mike had been killed in __9__ unexplained truck crash on the morning of my call.

I attended my friend's funeral, and even though I could __10__ (hard) walk, I helped carry my friend to his final resting place. Mike is still here too, in my heart and my soul.