Have your partner choose one of the speech topics and speak impromptu for two minutes.

由你的搭档挑选一个话题，即兴演说两分钟。

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They do not need to choose a topic yet, only brainstorm a minimum of 20 possible speech topics.

现在孩子们还没必要决定最后他们要用的主题，而只要给出20个可能的演讲主题就可以了。

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Perform this exercise at least three times, using different speech topics and working up to a speech time of three minutes.

用不同的话题作上述练习三次，每次不少于三分钟。

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The Obama speech in Laramie covered a range of topics, from Iraq to health care.

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Pacing around a room, they will talk for hours about future technologies such as voice recognition (they call their team working on it the "wreck a nice beach" group, because that's what invariably appears on the screen when someone speaks the phrase "recognize speech" into the system), then wander onto topics ranging from quantum physics to genetic engineering.

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Some bloggers and wrote that Microsoft hid its skeletons in the closet during the speech -- straying from tablets and smartphones, which are big topics with other companies.

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