We laugh at jokes, but seldom __________ about how they work. A．we think B．think we C．we d

We laugh at jokes, but seldom __________ about how they work. A．we think B．think we C．we do think D．do we think

D



试题分析：原句意思，我们因笑话而发笑，却很少思考它们的作用。含有否定意义的副词如no, never, little, seldom, hardly 等位于句首时，要将助动词、情态动词或系动词放在主语前面，构成部分倒装。seldom 为否定副词放句首，用部分倒装。
点评：解答此类题，一定要区别是部分倒装还是完全倒装，部分倒装是将助动词、情态动词或系动词提在主语前面，而完全倒装是把谓语动词本身完全提到主语的前面。