(1)not endless→limited

　　(2)choice→alternative

　　(3)Firstly→For_a_start

　　(4)finally→eventually

　　2．按要求进行句式改写

　　(1)用with复合结构改写句①

　　With_natural_resources_getting_rare,_we_have_no_choice_but_to_get_rid_of_any_practice_that_wastes_energy._

　　(2)用被动语态改写句②

　　Firstly,_alternative_energy_should_be_exploited.

　　(3)用“no matter＋疑问词”句式改写句③

　　In a word, no_matter_where_we_are,_we should look out for our own behavior and make contributions to protecting the environment.

　　[课下练高考]

　　阅读理解提速练——练速度

　　(限时：20分钟)

　　A

　　(2016·九江市高三二模)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.”

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