下列各句加线字的词类活用现象与其它三句不同的一项是  （     ）

    I love reading. At age 6, I could be found reading Harry Potter, a difficult book for a 6-year-old but I ____(enjoy) it all the same. ____ soon became obvious that spelling for me was not difficult and I had a wide vocabulary. This is one way I benefited ____ reading at such a young age.

    My advice for you as English learners would be to read the English novels ____you have often read in your native language. Reading novels is a great way of ____(improve) your vocabulary and spelling without realising it as you are absorbed（全神贯注的）in the storyline. You know the sorry well, so its ____(usual) easy to follow it in English even if you do not understand every word.

    This is another essential（基本的）point: it's not necessary ____(understand) every word. If you understand the ____(mean) of the sentence, each word is not necessarily important. Quite often, if a word is used several times in a text, you'll gradually get an idea of ____ it means.

    Give it a try. If you like reading yon could open up ____ whole new world of literature.

____

依次填入下列各句検线处的成语，最恰当的一组是（  ）                  
①医疗质量是关系到病人生命安危的大事，救死扶伤是医务人员 _________ 的天职。
②中国传统的严父慈母型的家庭关系，常令父亲们 _________地承担起教育子女的义务。
③在全国比赛中屡获金奖的我省杂技团，_________ 地承担了这次出国演出任务。