Question

【题目】More and more scientific experiments prove that physical exercise can reduce the dangers of some illnesses in middle-aged persons．Exercise strengthens the heart muscle，reduces blood pressure and help to prevent muscles from changing into fat．Physical exercise is just as important for children．

Exercise and food affect growing speed in young lab animals．Baby mice start running as soon as they are big enough to use an exercise wheel in their cage．If they get extra food and run a lot，they will grow as much as 1.5 times bigger than normal．

The same differences in growing speed might be found between active and inactive children．Physical exercise helps active children grow faster than inactive children．One experiment shows that the brains of the mice that had enough exercise weighed about 3％more than those of the mice that did not exercise The mice that exercised are much quicker to learn doing new exercise than the mice that did not exercise．

The results of the experiments suppose the theory that exercise can help babies learn to talk and walk sooner than expected．

The good effects of physical exercise are not limited to children and middle-aged people．Exercise continues to be an important part of our lives after we grow old．For example，people over 50 years old begin to lose calcium(钙) from their bones，which get weaker and can break easily．Physical exercise，however，helps to strengthen the bones and to prevent them from losing calcium．Of course，old people can take medicines to prevent themselves from suffering from losing calcium．But the medicines they take increase the chance of developing some kind of cancer(癌)．So physical exercise is a much safer treatment(治疗)．

根据短文内容完成下列表格，一空一词。

Title	Physical exercise
Theme	Physical exercise does 【1】 to people’s health ,both young and old.
【2】 of experiments	·Baby mice will be as much as 1.5 times bigger than normal on 【3】 that they eat extra food and run a lot. ·The brains of the mice that had enough exercise were 【4】 than those of the mice that didn’t exercise.
【5】	Children	·Helping active children grow faster than inactive children. ·Being【6】 For babies to learn to talk and walk sooner.
	The middle-aged	·【7】 the heart muscle. ·Reducing blood pressure . ·Preventing muscles from changing into fat.
	Old people	·Helping the old people’s bones get 【8】 by preventing them from losing calcium. ·【9】 the chance of developing some kind of cancer 【10】 by medicine.

Answer 1

【答案】【1】good

【2】Examples

【3condition

【4】heavier

【5】Results/Importance/Effects

【6】Helpful

【7】Strengthening

【8】Stronger

【9】Reducing

【10】caused

【解析】【1】 第一段是主体段落，讲述体育锻炼对人的好处。do good to对……有好处。

【2】 由第二段用老鼠做实验为例子可知。

【3】condition on condition that条件是……

【4】heavier 由第三段第三句可知。

【5】Results/Importance/Effects 表格右边分别列举了体育运动对小孩，中年人和老年人的影响。

【6】helpful 由第四段可知。be helpful for somebody对某人有好处。

【7】stronger 由最后一段第四句可知，体育运动可以使老年人骨骼更强壮。

【8】strengthen v．加强，增强。

【9】Reducing 根据最后一段末尾“.. . but the medicines they take increase the chance of developing some kind of cancer. So physical exercise is a much safer means of treatment”可知，吃药可以强壮骨骼，但药物会增加患某种癌症的几率，而体育锻炼是使骨骼强壮更安全的方法。也就是说，可以减少由药物引起患癌症的几率。

【10】caused 同79题，increase the chance of 替换成cause,caused 过去分词做后置定语修饰cancer。