题干

调查你们班全体同学每周做家务的时间,填写统计表:

每周做家务的时间/小时

0

1

1.5

2

2.5

3

3.5

4

人数/人

2

2

6

8

12

13

4

3

(1)采取哪种调查方式最合适?

(2)这个班同学每周做多长时间家务的人最多?做多长时间家务的人最少?

(3)请你根据以上的结果,用一句话谈谈自己的感受.

上一题 下一题 0.0难度 选择题 更新时间:2015-07-15 11:24:33

答案(点此获取答案解析)

解:(1)普遍调查;

(2)每周做3小时的人最多,做0小时或1小时的人最少.

(3)从表中可以看出,这个班的同学每周做家务的时间大部分在2~3个小时,平均每天做一二十分钟,有的甚至一点也不做,我感到我们中学生做家务的时间用得太少,我们不但应该搞好自己的学习,同时也要更多的做些力所能及的家务,一方面减轻父母的负担,另一方面提高我们的自理能力.

同类题2

          The production of coffee beans is a huge, profitable business, but, unfortunately, full-sun production is taking over the industry and
 bringing about a lot of damage. The change in how coffee is grown from shade-grown,production to full-sun production endangers the very existence of, certain animals and birds, and even disturbs the world’s ecological balance.
          On a local level, the damage of the forest required by full-sun fields affects the area’s birds and animals. The shade of the forest trees provides a home for birds and other special(物种) that depend on the trees’ flowers and fruits. Full-sun coffee growers destroy this forest home. As a result, many special are quickly dying out.
        On a more global level, the destruction of the rainforest for full-sun coffee fields also threatens(威胁)human life. Medical research often makes use of the forests' plant and animal life, and the destruction of such species could prevent researchers from finding cures for certain diseases. In addition, new coffee-growing techniques are poisoning the water locally, and eventually the world's groundwater.
         Both locally and globally, the continued spread of full-sun coffee plantations (种植园)could mean the destruction of the rainforest ecology. The loss of shade trees is already causing a slight change in the world's climate,
 and studies show that loss of oxygen-giving trees also leads to air pollution and global warming. Moreover, the new growing techniques are contributing to acidic(酸性的) soil conditions.
         It is obvious that the way much coffee is grown affects many aspects many aspects of life, from the local environment to the global ecology.
 But consumers do have a choice. They can purchase shade-grown coffee whenever possible, although at a higher cost. The future health of 
the planet and mankind is surely worth more than an inexpensive cup of coffee.