第9题: [简答题]How do you understand the relationship between the grammatical forms of a language and their communicative functions 参考答案:
The relationship between the grammatical forms of a language and their communicative functions is not a one-to-one correspondence. Whereas the sentence structure is stable and straightforward, its communicative function is variable and depends on specific situational and social factors. The fact is that a single linguistic form can express a number of functions, so also can a single communicative function be expressed by a number of linguistic forms.
第15题: [单项选择]树脂类中药一般不溶于 A. 水 B. 乙醇 C. 乙醚 D. 氯仿 E. 石油醚 参考答案:A 答案解析:[解析] 本题考查树脂类中药的通性。
树脂类中药是很多高分子脂肪族和芳香族化合物的混合物，含树脂烃、树脂酸、果酮酸、龙脑等成分，因而遇热软化，渐熔融；燃烧时有浓烟，并有特殊浓烈的香气。一般不溶
A. produces heat in its body cells B. burns fuel to produce heat C. sends out heat through its skin D. takes in oxygen for burning fuel 参考答案:C 答案解析:[A]选项具有一定的迷惑性，文中破折号后的名词heat及其两个后置分词修饰语对“a living radiator”做了解释说明，其中最能解释radiator的明显是“give off”。
