C．special

　　D．normal

　　解析：选A　根据语境可知，帮助老人这件事让作者母子二人都感觉很好，所以positive“良好的，正面的”符合语境。

　　课时练(二)　阅读理解提速练(练速度)

　　(限时：35分钟)

　　Ⅰ.阅读理解

　　A

　　(2016·河北五校联盟质检二)When Joshua Blue, a head teacher at the Kennedy, hosts a lecture for his students, he wears a light violet­colored tie. “You don't want so many bright colors that the kids will get distracted，” said Blue. Colors give off very specific signals, and different tie colors stand for very different impacts. Wondering what color tie to wear to your next meeting? Here's how to choose the perfect color tie for every occasion：

　　All powerful reds

　　It's not a coincidence (巧合) that many politicians wear red­colored ties with light shirts and darker suits. “Red is the powerful color，” said Mark Woodman, a trend analyst who studies color in Laurel, Maryland. “There's something about red that always comes back to strength and passion.” But the tone of your reds matters, too. Darker reds can help build trust, while lighter red and pink ties can be more of a statement about your personal style and be associated with creativity. When you want to convey a sense of ambition, consider a shiny red.

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