知识点

不定式在句子中可以充当很多成分，如名词，形容词或副词：

◆ Noun: I love TO SWIM. To swim 作为love 的宾语.

◆ Adjective: The person TO MEET is here. To meet 修饰名词person.

◆ Adverb: Sue paused TO EAT lunch. To eat 修饰动词paused.

对于不定式的使用，我们也更应该关注不定式所要表达的目的：

Right: The contractors demolished the building TO KEEP it from falling down accidentally.

demolished 的发起者是contractors ,同时也是不定式to keep的发起者，它描述了demolish 的目的，这里的it 指代building。我们再看一个例子：

Wrong: The building was demolished TO AVOID falling down accidentally.

上面的例子中building 本身不可能AVOID falling down，对于上面例子可以这样修改：

The building was demolished TO KEEP IT from falling down accidentally.

这里的it 指代building ，经过这样修改，building 变成了不定式的宾语。不定式虽然可騨发名词用但还是和名词有许多不同的地方，比如不能作为介词的宾语。
试题
Australian embryologists have found evidence that suggests that the elephant is descended from an aquatic animal, and its trunk originally evolving as a kind of snorkel.
A. that suggests that the elephant is descended from an aquatic animal, and its trunk originally evolving
B. that has suggested the elephant descended from an aquatic animal, its trunk originally evolving
C. suggesting that the elephant had descended from an aquatic animal with its trunk originally evolved
D. to suggest that the elephant had descended from an aquatic animal and its trunk originally evolved
E. to suggest that the elephant is descended from an aquatic animal and that its trunk originally evolved

答案和解析

答案:E

参考解析:
A. Suggest that… and that…. 第二个that不能省略，且and前面不需要逗号
B. Suggest的用法不符合习语
C. 句子使用过去完成时没有根据，with部分结构错误
D. 宾语从句平行，第二个that不能省略
E. 正确
看完题目反正意思就是说大象怎么来的 还有那粗象腿怎么进化的
A看到了AND发现前后不相配 前面是句子 后面怎么变异成了这玩意
B意思还行就是废话有点多 先放着吧
C 明显的问题在HAD 没有过去的过去意思啊 基本时态在GMAT中我就只用单复数和这种找错中用的过去完成时
D同上
E挺平行的 不错 留着
然后比较两BE明显E简洁 在意思对的情况下我们才能用简洁比 不要轻易一上来就用这 风险太大be descended from 排除BCD，并列的宾语从句中，第二个宾从中that不可省, 即suggest that... and that...