A recent study of ancient clay deposits has provided new evidence supporting the theory that globalforest fires ignited by a meteorite impact contributed to the extinction of thedinosaurs and many other creatures some 65 million years ago.
为何不可以用to support，用supporting我能理解，但为何 provide ……to不能呢？
你并没理解为何用supporting。supporting是目前分词作evidence的定语，目前分词作定语，分词的动作与谓语时间具备同时性，即等于that supports the theory...。假如用不定式作定语，则不定式表示的动作还没发生。这就致使逻辑不通。已经提供了证据，证据却还不支持某理论，这是逻辑混乱。所以这里不可以用不定式作定语。语法剖析与逻辑分词是分不开的。逻辑上讲不通的剖析肯定是不对的剖析。
