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随堂训练 1. By 2025, when the number of consumers worldwide has reached 4. 2 billion, people with high income will be, for the first time, more than ______ struggling to meet basic needs. A. oneB. thatC. onesD. those 【解析】选D。句意: 到2025年, 全世界消费者的人数将达到42亿, 高收入的人将首次超过还在想方设法来满足生活基本需要的人。根据句子中提到的people及struggling to meet basic needs可知句中填入的部分应为可数名词复数, 且为特指, 故用those。 【知识拓展】 that作替代词, 替代单数名词时, 指同类不同个(另一个同类物品)。that和those总是伴随着限定性的后置修饰语, that=the one, those=the ones。one的复数形式ones只能替代可数名词复数。它也必须带有一个限定或修饰词。 2. My best friend who saved the two drowning boys from the freezing river is a kind and brave person, that is worth respecting for ever. A. that B. one C. it D. what 【解析】选B。句意: 我的最好的朋友从冰河中救出了两个溺水的男孩。他是一个善良勇敢的人, 一个值得永远尊敬的人。根据句意, 填入的部分应为“一个人”即a person, 可用one替代, 表示泛指一个人或物。 3. (2015·宁波模拟)To British people, Canadians may sound American; to Americans, they may sound British. Canadians themselves insist on not being identified with______. | 
