题目

下列物质的用途，主要是由其物理性质决定的是（ ） A．氧气可用于医疗急救 B．澄清石灰水可用于检验二氧化碳 C．天然气可用于取暖、做饭D．铁水可铸成铁锅 答案：D词汇检测(根据所给音标或中文写出单词的正确形式，每空一个单词)：【1】The twins' father often goes running in the park /twas / a week.【2】Some of the students don't like to eat 'vedtblz/ at school.【3】Lunch gives us /'endi / for the whole afternoon.【4】Peter, is there / ’nf / bread for us to eat?【5】The Greens are living in a very /'kmftbl / house.【6】How many Chinese (英雄)does Daniel know?【7】The new term(学期)starts in (二月).【8】Lily is interested in (收集)stamps.【9】Look! Her hair clip (与……相配)her new blouse very well.【10】Can you help me work out the (总的)number of the books?