选词填空。从下列所给单词中选出适当词语，并用其适当形式填空。（共10小题， 每题1分，共10分）
addict, pain, affect, breath, participant, genius, rare, crime, health, catch
【小题1】That was such a difficult game that a third of the participants gave up halfway.
【小题2】In the past few years, My Heart Will Go On was a popular catchy song among young people.
【小题3】She rarely watches TV because she thinks it’s a waste of time.
【小题4】Many children in this village look too thin, pale and unhealthy .
【小题5】A lot of artists were geniuses in many fields, such as Leonardo Da Vinci and Beethoven.
【小题6】The criminal had a lonely life in prison but no one wanted to pay a visit to him.
【小题7】I like getting up very early in summer. The morning air is so good tobreathe .
【小题8】The teacher’s encouragement has a positive effect on the students.
【小题9】If you have confidence, I believe you can overe your addiction to drugs.
【小题10】If he wants to win in the contest, he must take great pains with it.
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解析：
【小题1】根据句意：这是很难的比赛，三分之一的参与者都半途而废了，可知a third of后面接复数：participants
【小题2】从句子看，这里应该填形容词：catchy易记住的，朗朗上口的
【小题3】考查副词，用rarely修饰watches TV
【小题4】考查形容词;和thin, pale 并列的应该是health的形容词反义词unhealthy
【小题5】句意是：很多艺术家是天才，主语是A lot of artists 名词用复数geniuses
【小题6】这个罪犯在监狱里过着孤独的生活，但没有人想去看他，用crime的名词criminal
【小题7】句意：早上的空气呼吸起来很新鲜，用breath的动词breathe
【小题8】考查词组：have a positive effect有着积极的影响，affect改成effect
【小题9】句意：如果你有决心，我想你会戒掉毒瘾，用addict的名词addiction
【小题10】考查词组：take great pains不辞辛劳