Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文: Facial expressions carry meaning that is determined by situations and relationships. For instance, in American culture, the smile is typically an expression of pleasure. Yet it also has other functions. A smile may show affection, convey politeness, or disguise true feelings. It is also a source of confusion across cultures. For example, many people in Russia consider smiling at strangers in public to be unusual and even suspicious behavior. Yet many Americans smile freely at strangers in public places. Some Russians believe that Americans smile in the wrong place; some Americans believe that Russians don't smile enough. In Southeast Asian cultures, a smile is frequently used to cover emotional pain or embarrassment.
Our faces reveal emotions and attitudes, but we should not attempt to "read" people from another culture as we would "read" someone from our own culture. The degree of facial expressiveness one exhibits varies among individuals and cultures. The fact that members of one culture do not express their emotions as openly as do members of another does not mean that they do not experience emotions. Rather, there are cultural restraints on the amount of non-verbal expressiveness permitted.
If we judge people whose ways of showing emotions are different according to our own cultural norms, we may make the mistake of "reading" the other person incorrectly.
(27)
A.The meaning of facial expressions depends on situations.
B.Facial expressions can cause misunderstanding across culture.
C.People from one culture may lack facial expressions because they experience less emotion.
D.Facial expressions may disguise true feelings.
第2题
不是PCR反应必需成分的是
A、dNTP
B、DNA聚合酶
C、RNA聚合酶
D、模板DNA
E、特异性引物
第4题
聚合酶链式反应体系中不是必需的成分是
A、引物
B、Taq聚合酶
C、缓冲液
D、甘油
E、dNTP
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