跟着M君做改错（38）

“跟着M君做改错”第三十八期来啦！M君的改错系列可不仅仅只是习题，附上答案的同时还会有解析哦！好啦，今天M君带来一篇改错给大家，答案和解析在文章后半部分，一定要先做题再对答案哦！

(1) The hunter-gatherer tribes that today live as our prehistoric human (2) ancestors consume primarily a vegetable diet supplementing with animal foods.

An analysis of 58 societies of modern hunter-gatherers, including the Kung of southern Africa, revealed that one-half emphasize gathering plants foods,one-third concentrate on fishing, and only one-sixth are primarily hunters, Overall, two-thirds (3) and more of the hunter-gatherer's calories come from plants. Detailed studies of the Kung by the food scientists at the University of London, showed that gathering is a more productive source of food than is hunting. (4) An hour of hunting yields in average about 100 edible calories, (5) as an hour of gathering produces 240. 

(6) Plant foods provide for 60 percent to 80 percent of the Kung diet, and no one goes hungry when the hunt fails. Interestingly, if they escape fatal infectionsor accidents, (7) these contemporary aborigines live to old ages despite of the absence of medical care. They experience no obesity, no middle-aged spread, little dental decay, no high blood pressure, no heart disease, (8) and their blood cholesterol levels are very low (about half of the average American adult). (9) If no one is suggesting that we return to an aboriginal life style, we certainly (10) could use their eating habits as a model for healthier diet.

参考答案及解析:

1. 将as改为like，此处的意思是“像史前人类祖先那样生活”。

2. 将supplementing改为supplemented。supplemented修饰diet，可以看作which is supplemented with animal foods的简化形式。

3. 将and改为or

4. 将in改为on。on average是固定用法。

5. 将as改为while或者whereas

6. 删掉for，或者将provide改为account。此处provide 是及物动词，后面不用介词for

7. 删掉第一个of，despite做介词，后面直接接名词。

8. 在half后加that，that指代前面的blood cholesterol levels，不能省略，因为这里是将部落成员的胆固醇含量与美国人的胆固醇含量相比较。

9. 将if改为whereas或者while，此处意思为“尽管没有人……，但是……”，是转折关系。

10. 在for后面加不定冠词a。

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