226、The student continued to do mischief in class even though his teacher repeatedly told Him__________.（财科所2014年）
- not doing
- Not
- not to
- To
答案：C
解析：语法题。考察不定式。tell sb．not to do：告诉某人不要做某事。not to do：不定式的否定形式。故选择C。句意：尽管老师多次告诉不允许在课堂上捣乱，但是这个学生依旧我行我素。
227、He came all the way to help her ________ that she drowned himself in a well.（财科所2014年）
- only to find
- to find
- in order to find
- so as to find
答案：A
解析：语法题。only to find：结果却发现，表达出人意料或不愉快的意思。in or der to：为了。so as to：以便，以致。故选择A。句意：他大老远跑来帮她，结果发现她在一口井中溺亡。
228、During the course of its growth, a frog undergoes a true metamorphosis _________ with a fish like larval stage.（财科所2014年）
- Begin
- Began
- Beginning
- is begin
答案：C
解析：语法题。A、B、D中的谓语动词与undergo冲突，排除。C为现在分词，可以做名词的后置定语。句意：在青蛙生长期间，它从类似子鱼期开始经历了一次真正的变形。
229、Nowhere in nature is aluminum found free, owing to its always _______ with other elements, most commonly with oxygen.（财科所2014年）
- Combined
- having combined
- Combine
- being combined
答案：D
解析：语法题。考察非谓语动词。owing to是介词，后应接名词或动名词，所以排除A和C。而根据题意，后面应该接被动语态形式，进而排除B，故选择D。句意：在自然界找不到游离状态的铝，因为铝总是跟其他元素结合在一起，最常见的是跟氧结合。
230、Efforts should be made to cultivate a business and legal environment ________ fair competition between national industries and foreign-funded enterprises.（财科所2014年）
- Facilitate
- Facilitated
- Facilitating
- to facilitate
答案：D
解析：语法题。A：动词原形，B：过去分词形式，通常表被动。C：现在分词，表伴随，作状语。D：不定式，表目的，符合句意。句意：我们应该努力打造一个合法的贸易环境，以利于民族企业与外资企业展开公平的竞争。