题目内容
13．The plant may grow to a height of several meters，___ soil condition．（ ）| A． | depending on | B． | depends on | C． | depends | D． | depending |
分析 这种植物可能会长到几米高，这要取决于土壤条件．
解答 答案：A
解析：首先根据depend on"取决于"这一固定短语可知，C、D选项直接排除；又因为前面的句子已经完整，故后面应该使用非谓语动词形式，因此B选项排除；"是否能长到几米高"与"依赖于"之间为主谓关系，故应该使用动词（短语）的现在分词形式作条件状语（相当于一个由if引导的条件状语从句）．
点评 本题考查非谓语动词，做此类题目时一定要仔细分析句子结构，确定各分句中主谓之间的逻辑关系，以此判定非谓语动词的形式．
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Many language experts believe that evolution is （52）D for our ability to produce and use language．They （53）C that our highly evolved brain provides us with an innate （inborn：天生的） language ability not found in lower organisms （生物，有机体）．Those who support this innateness theory say that our （54）A for language is inborn，but that language develops gradually，as a function of the growth of the brain during childhood．Therefore there are critical （55）B time for language development．
Current （56）A of innateness theory are mixed； however，evidence supporting the existence of some innate abilities can not be denied．（57）C，more and more schools （流派） are discovering that foreign languages are best taught in （58）D grades．Young children often can learn several languages by being （59）B to them，while adults have a much harder time learning another language once the （60）C of their first language have become firmly fixed．
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