题干

下列说法中,不正确的是(   )

①建国60周年庆典晚会上,天安门广场燃放的焰火是某些金属元素魅力的展现

②酒精灯加热铝箔至熔化,铝并不滴落,说明铝表面有一层致密的氧化膜

③为测定熔融氢氧化钠的导电性,将氢氧化钠固体放在石英坩埚中加热熔化

④电解从海水中得到的氯化镁溶液可获得金属镁

⑤KI淀粉溶液中通入Cl2,溶液变蓝,说明Cl2能与淀粉发生显色反应.

A:③④⑤

B:①③④

C:①③④⑤

D:①②③④

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A

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    It's generally believed that people act the way they do because of their personalities and attitudes. They recycle their garbage because they care about the environment. They pay $5 for a caramel brulee latte because they like expensive coffee drinks.

    It's undeniable that behavior comes from our inner dispositions(性情), but in many instances we also draw inferences about who we are, as suggested by the social psychologist Daryl Bern, by observing our own behavior. We can be strangers to ourselves. If we knew our own minds, why should we need to guess what our preferences are from our behavior? If our minds were an open book, we would know exactly how much we care about the environment or like lattes. Actually, we often need to look to our behavior to figure out who we are.

    Moreover, we don't just use our behavior to learn about our particular types of character — we infer characters that weren't there before. Our behavior is often shaped by little pressures around us, which we fail to recognize. Maybe we recycle because our wives and neighbors would disapprove if we didn't. Maybe we buy lattes in order to impress the people around us. We should not mistakenly believe that we always behave as a result of some inner disposition.

    Whatever pressures there can be or inferences one can make, people become what they do, though it may not be in compliance(符合) with their true desires. Therefore, we should all bear in mind Kurt Vonnegut's advice: “We are what we pretend to be, so we must be careful about what we pretend to be.”