题目内容
18.Helping others is a habit,_______ you can learn even at an early age.( )| A. | it | B. | that | C. | what | D. | one |
分析 句意:帮助别人是一个习惯,一个从小就可以学到的习惯.
解答 答案D. one═a/an+名词单数.one在这里是同位语,既one=a habbit,然后后面有个定语从句来修饰.it"指代前面提到过的事物";that"替代特指的可数名词单数和不可数名词(═the one)";what"在名词性从句中做主语,宾语和表语".根据句意"一个可以从小学得的习惯"故选D.
点评 本题是基础题,考查不定代词的用法,要熟悉不定代词在具体语境的运用.
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