2. 外语
  3. A simple computer program that teaches children to distinguish between sounds can dramatically【C1】______ their listening skills.

A simple computer program that teaches children to distinguish between sounds can dramatically【C1】______ their listening skills.

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问题     A simple computer program that teaches children to distinguish between sounds can dramatically【C1】______ their listening skills. It can allow them to progress by the【C2】______ of two years in just a few weeks, the game’s creator claims.
    The game, called Phonomena, was【C3】______ by David Moore of the University of Oxford, UK, as a(n)【C4】______ for children with language problems, but he says his latest【C5】______ also show that it can help any child. Other experts,【C6】______, are reserving judgement until independent tests are【C7】______.
    Phonomena is designed to【C8】______ children’s ability to distinguish between different phonemes, the basic sounds that form the building【C9】______ of language. Up to a fifth of all children【C10】______ thought to have problems【C11】______ the differences between some sounds, says Moore, who heads the UK Medical Research Council’s Institute of Hearing Research.
    In the game, children have to distinguish between【C12】______ of phonemes such as the "i" sound from the word "bit" and the "e" from "bet". They are played one phoneme【C13】______ by two more examples, and asked which one【C14】______ the first sound.【C15】______ the game progresses the phonemes are gradually "morphed" to make them more and more【C16】______, making it increasingly difficult to distinguish between them.
    【C17】______ 44 phonemes in English, there are【C18】______ more than 1,000 different pairs, but the game【C19】______ on just 22 pairs of the【C20】______ and most similar-sounding phonemes.
【C19】
选项 A、depends
B、relies
C、concentrates
D、bases
答案C
解析 固定搭配题。concentrate on表示“集中”，符合句意，故C正确。A、B也能与on搭配，意为“依靠，依赖”，不符合句意；而base on常用于被动语态be based on“以……为基础”，故排除D。
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