英语专八改错模拟练习题.docxVIP

英语专八改错模拟练习题 在英语越来越普及的今天,学好英语成了大学生的首要学习目标。为了帮助大家顺利 通过 2017 年大学专八英语级，下面，为大家有哪些信誉好的足球投注网站整理的 2017 年英语专八改错模拟练习题， 希望能给大家带来帮助!更多精彩内容请及时关注我们! Most people would describe water like a colorless liquid. They 1 would know that in very cold conditions it becomes a solid called ice and that when heating on a fire it becomes a vapor called steam. 2 However, water, they would say, is a liquid. We have learned that water consists of molecules composed with two atoms of hydrogen 3 and one atom of oxygen, which we describe by the formula H2O. This is equally true of the solid called ice and the gas called steam. Chemically there is no difference between the gas, the liquid, and the solid, all of which is made up of molecules with the formula H2O. 4 This is true of other chemical substances; most of them can exist as gases or as liquids or as solids. We may normally think of iron as a solid, but if we will heat it in a furnace, it will melt and become a 5 liquid, and at very high temperatures it will become a gas. Nothing very permanent occurs when a gas changes into a liquid or a solid. Everyone knows that ice, which has been made by freezing water, can be melted again by warmed and that steam can be condensed 6 on a cold surface to become liquid water. In fact, it is only because water is so a familiar substance that different names are used for 7 the solid, liquid and gas. Most substances are only familiar with 8 us in one state, because the temperatures requiring to turn them 9 into gases are very high, or the temperatures necessary to turn them into solids are so low. Water is an exception in this respect, which is another reason why its three states have given three different names. 10 参考谜底及解析: 改 like 为 as describe sth as sth 是把……描述成……的意思。 改 heating 为 heated 在时刻，前提，让步等啄暌癸年夜句中，昔时夜句主语和主句主语是一致的时辰，可以将年夜句的主语和 be 的转变形式省略。 改 with 为 of be composed of 意思为“搜罗，由……组成” 改 is made up 为 are made up which 指代上文中的 the gas， the liquid，and the solid，暗示复数概念，所以要用 are 将第一