全面理解商品的价值量人教版

全面理解商品的价值量人教版
全面理解商品的价值量人教版

全面把握“商品的价值量”

一、弄清三组概念

1. 商品的价值量和商品的价值总量。

商品的价值量是指商品价值的大小。它通常是指单位商品的价值量。商品的价值总量是指某一部门或某一商品生产者在一定时间内所生产的商品的价值量的总和。它等于商品的数量与单位商品价值量的乘积。

2. 社会必要劳动时间和个别劳动时间。

社会必要劳动时间是指在现有的社会正常的生产条件下,在社会平均的劳动熟练程度和劳动强度下制造某种使用价值所需要的劳动时间。个别劳动时间是指生产同一种商品的不同生产者各自所耗费的劳动时间。由于每个生产者的条件不同,其个别劳动的时间也不同。

3. 社会劳动生产率和个别劳动生产率。

社会劳动生产率是指某部门或整个行业的劳动效率。个别劳动生产率是指某一单位、企业或某一商品生产者的劳动效率。

二、明确六组关系

1. 劳动生产率和劳动时间的关系。

劳动时间随劳动生产率的变化而变化,劳动生产率提高,劳动时间就缩短,反之,则延长。

2. 商品的价值量和社会必要劳动时间、社会劳动生产率的关系。

商品的价值量由社会必要劳动时间决定,生产某种商品所耗费的社会必要劳动时间越多,其价值量就越大,反之,则越小。社会必要劳动时间随社会劳动生产率的变化而变化,生产某种商品的社会劳动生产率越高,所耗费的社会必要劳动时间就越少,商品的价值量也就越小,反之,则越大。所以,商品的价值量和社会必要劳动时间成正比,与社会劳动生产率成反比。

3. 商品的价值量和个别劳动时间、个别劳动生产率的关系。

商品的价值量和个别劳动时间、个别劳动生产率都无关,因为商品的价值量是由社会必要劳动时间决定的。

4. 商品的价值总量和社会劳动生产率的关系。

社会劳动生产率无论如何变化,同一劳动在同一时间内所创造的价值总量是不变的。因为生产某种商品的社会劳动生产率越高,生产单位商品所耗费的社会必要劳动时间就越少,那么在单位时间内所生产的商品数量就越多,而单位商品的价值量则随着社会劳动生产率的提高而降低,这样二者的乘积即价值总量没有变化。

5. 商品的价值总量和个别劳动生产率的关系。

个别劳动生产率与同一时间创造的商品的价值总量成正比。因为个别劳动生产率提高,说明商品生产者在同一时间内创造的商品数量增加。由于社会必要劳动时间不变,单位商品价值量不变,故商品的价值总量增多。

6. 劳动生产率与商品使用价值的关系。劳动生产率提高,生产单位产品的时间就减少,在同一时间内生产的产品数量就增多,使用价值也就增多,所以劳动生产率同商品的使用价值量成正比。

通过以上分析,可得出以下结论:

三、把握两方面意义

1. 提高个别劳动生产率的意义。

①个别劳动生产率提高后,个别生产者在相同的时间内创造的价值总量增加,在竞争中可获得额外的收益,在竞争中处于有利的地位。因此,个别劳动生产率的高低直接影响着商品生产者的盈亏状况。②个别劳动生产率的普遍提高,有利于促进社会劳动生产率的提高。

2. 提高社会劳动生产率的意义。

社会劳动生产率提高后,单位时间内所生产的商品数量增加,单位商品的价值量降低,价格下降,从而可以使人们购买到更多物美价廉的商品,不断满足人们日益增长的物质文化生活需要。

四、典型例析

(2020年上海高考题)“旧时王谢堂前燕,飞入寻常百姓家”常被用来形容过去的一些昂贵商品现在变成了大众消费品。造成这种变化的主要原因是

A. 社会劳动生产率提高

B. 大众消费观念发生变化

C. 人民生活质量提高

D. 商品市场日益繁荣

解析:该题主要考查学生对商品的价格、价值和社会劳动生产率之间关系的理解、应用能力。价值决定价格,价值又和社会劳动生产率成反比,所以,社会劳动生产率提高后,单位商品的价值量降低,价格下降,人们就可以购买到更多物美价廉的商品,昂贵商品也就变成了大众消费品。故正确答案是A项。

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(5)句意:辛迪的电话号码是3523267。根据Call Cindy: 2353267.可知辛迪的电话号码是2353267。故答案为错误。 【点评】本题考查了阅读理解,先翻译布告牌,然后根据布告牌内容,判断句子正确或错误。 2.阅读理解阅读短文,选择正确的答案。 Bruce Smith and his family's hobby is camping (野营). They often spend (度过) their Saturdays and Sundays like this. The children, Daniel and Lucy, like going fishing with their father. Sometimes they go swimming in the sea or go boating on the river. Mrs Smith likes drawing beautiful places. She often draws well with her brushes. Then Mr Smith buys a big car. It is like a house. It has beds for four people, a living room, a place for cooking and a bathroom. Mrs Smith and the children are very happy. (1)There are _____ people in Bruce Smith's family. A. three B. four C. five (2)The Smiths often go camping on _____. A. weekends B. Saturdays C. Sundays (3)Daniel and Lucy like _____. A. going fishing B. going swimming C. going boating (4)Mrs Smith is good at drawing _____. A. people B. places C. flowers (5)The Smiths buy a car. It is like a _____ car. It is like a _____. A. small, boat B. big, bed C. big, house 【答案】(1)B (2)A (3)A (4)B (5)C 【考点】阅读理解 【解析】【分析】大意:短文讲述了布鲁斯·史密斯和他的家人的爱好,以及周末的日常生活。 (1)根据短文可知布鲁斯·史密斯家有四口人。故答案为B. (2)根据Bruce Smith and his family's hobby is camping . They often spend their Saturdays and Sundays like this. 可知史密斯家人经常在周末去露营。故答案为A. (3)根据The children, Daniel and Lucy, like going fishing with their father. 可知丹尼尔和露西喜欢去钓鱼。故答案为A. (4)根据Mrs Smith likes drawing beautiful places. 可知史密斯太太喜欢画美丽的地方。故答案为B. (5)根据Mr Smith buys a big car. It is like a house. 可知史密斯先生买了一辆大汽车。就像一座房子。故答案为C.

六年级译林版小学英语阅读理解试题(附答案)

一、英语阅读理解训练 1.阅读理解读下两这封信,回答问题 Dear Mum, How are you? Every day I had fun with my cousins. On Monday we went to a restaurant. We ate good food. On Tuesday we went to a park. We sang and danced. On Wednesday we played ping-pong. On Thursday we climbed a mountain. We took many pictures. Tomorrow I'll be back home! Miss you and dad. Love. John (1)What did John do on Monday? (2)Where did John go on Tuesday? (3)What did John do on Tuesday? (4)Did John play badminton on Wednesday? (5)Did John climb a mountain on Thursday? 【答案】(1)He ate good food. (2)He went to a park. (3)He sang and danced. (4)No, he didn't. (5)Yes, he did. 【考点】阅读理解 【解析】【分析】这是写给父母,介绍自己一周生活情况的信。 (1)根据短文叙述 On Monday we went to a restaurant. We ate good food. (周一我们去了饭店。我们吃了美食。)可知周一吃美食。故答案为: He ate good food. (2)根据短文叙述 On Tuesday we went to a park. (周二我们去了公园。)可知是去了公园。故答案为: He went to a park. (3)根据短文叙述We sang and danced. (我们唱歌和跳舞。)可知是唱歌跳舞。故答案为: He sang and danced. (4)根据短文叙述 On Wednesday we played ping-pong. (在星期三我们打乒乓球。)可知不是打羽毛球,用否定回答。故答案为: No, he didn't. (5)根据短文叙述 On Thursday we climbed a mountain. (周四我们爬山了。)可知用肯定回答。故答案为: Yes, he did. 【点评】这是考查阅读理解的题目。首先仔细阅读短文,然后根据题目问题的相关叙述,来回答问题。

人教版八年级英语阅读理解训练

(A) In the world, soccer of football is the most popular sport. This is because many countries have wonderful teams for the World Cup. The World Cup is held every four years. To remember 2002 FIFA World Cup, children from different countries and more than 60 children from Japanese schools came together and spent three weekends drawing a big picture called“Dream(梦幻) World Cups”in Japan. The children drew animals, flowers and people playing soccer under a bule bright sky. They wished each football team good luck by drawing the flags(旗帜)of all the countries that will take part in the World Cup in Japan and South Korea. The picture was put up in a park near a playground in Yokohama. Some football teams will have games there. Are you a football fan(迷)?The World Cup makeds more and more people interested in football. Teenagers(青少年)like playing and watching football. Many of them love some football stars so much that they get the pictures of their favourite players on the walls of their rooms. That is the way to show their love for the World Cup as children in Japan. 1.If a country wants to take part in the World Cup ,she must have______. A.Many football fans B.a very good team C.many football player D.a big playground 2.The next World Cup will be held in_______. A.2006 B.2007 C.2005 D.2004 3.From the passage ,in the picture children drew many things except_________. A. people playing football B. pictures of some football stars C. a sunny sky D. flowers 4.In“Dream World Cup”,the children drew the flags of some countries______. A. to show their love for their owe country B. to tell the people their stories C. to show their good wishes for the football teams D. to show their new ideas about football 5.Many teenagers owe the pictures of some football stars because______. A. they are interested in football B. they are football fans C. they think their favourite players are great D. all of A, B and C (B) In 1826, a Frenchman named Niepce needed pictures for his business. But he was not a good artis. So he invented a very simple camera(照相机). He put it in a window of his house and took a picture of his garden. That was the first photo. The next important date in the history of photography (摄影术) was in 1837. That yeat ,Daguere,another Frenchman, took a picture of his reading room .He used a new kind of camera in a differentway. In his picture you couild see exerything very clearly, even the smallest thing. This kind of photo was called a Daguerreotype. Soon, other people began to use Daguerre’s way. Travellers brought back wondeful photos from all around the world. People took picture of famous buildings, cities and mountains. In 1840,

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