问题 辨析题

某班同学讨论为什么“春节比国庆节期间苹果价格高”的问题,同学发言踊跃,各抒已见。同学甲:国庆节期间的苹果刚摘下来,水分多,味道酸甜;到了春节,苹果水分少了,味道甘甜,价格当然要高。同学乙:春节期间苹果供应量比国庆节少,而人们走亲访友需求增多,供不应求造成价格上涨。同学丙:两位同学的观点我都不同意。苹果从国庆节到春节,经过几个月的包装、储存,耗费了人们大量劳动,价值量大了,价格自然要高。利用商品的有关知识分别评析甲、乙、丙三位同学的观点。

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答案

(1)甲是以商品的使用为标准来衡量苹果价格是错误的,因为价格高低应由价值大小决定,而不是使用价值决定。(2)乙正确指出了苹果作为商品,它的价格受供求关系影响,价格应该上涨,但没有指出苹果价值量的增加,是片面的。(3)丙正确指出了苹果经过人们劳动加工,自身价值增加了,因此价格应上涨,但没有指出供求关系的影响,也是片面的。

完形填空
完形填空。
     Stress is the feeling you get when you're really worried about something. This is the kind of worry that
troubles you for hours, or even days. It makes you feel  1 , scared, or angry. You may find it difficult to eat
and sleep, or you might eat and sleep much  2  than usual. Stressing out will lead to serious problems like
heart illness.  3  not all stress is bad for you. The good kind  4  your body and mind alert (机敏的) and can
make you perform better, like when you're giving a speech to? your class or running to the finish line.
     What causes stress? Do you know  5  your dad is worried about the bills (账单), or your mom is unhappy?
Because they're stressed out! There are lots of things in your life that  6  cause stress-having too much
homework, taking a test in a subject that you are not good  7 , or hearing your parents argue!
     There are some ways to  8  stress. If you're stressed out, try these quick and easy ways to relax! Take
part in sports and out-of-class activities. Try to get at least eight hours of sleep every night. Eat a healthy,
balanced  9  that includes all kinds of food. Talk with your close friends, family members or teachers. It'll
make you feel better, and  10  may be able to give you advice and help you solve your problem.
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单项选择题