The hunter-gatherer tribes that today live as our prehistoric human __1__ancestors consume primarily a vegetable diet supplementing with animal foods __2__An analysis of 58 societies of modern hunter-gatherers, including the Kung of southern Africa, revealed that one-half emphasize gathering plants foods,( S& ]" t- T+ Z$ Z3 A1 y& Z
one-third concentrate on fishing, and only one-sixth are primarily hunters,Overall, two-thirds and more of the hunter-gatherer’s calories come from _3__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. An hour of hunting yields in average about 100 edible __4__calories, as an hour of gathering produces 240. __5__Plant foods provide for 60 percent to 80 percent of the Kung diet, and no __6__one goes hungry when the hunt fails. Interestingly, if they escape fatal infections or accidents, these contemporary aborigines live to old ages despite of the absence __7__of medical care. They experience no obesity, no middle-aged spread, little dental decay, no high blood pressure, no heart disease, and their blood cholesterol levels are very low (about half of the average American adult). __8__If no one is suggesting that we return to an aboriginal life style, we certainly __9__could use their eating habits as a model for healthier diet. __10__! f! Y, U1 `) u) l- c+ `8 }
答案:
4 x! L- x! z. ^: t1 n: l3 x/ n3 D 1 将as 改为like。此处的意思是“像史前人类祖先那样生活”。 V$ c" l0 M1 j" z4 f5 z, P
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。5 W( a) v& Z+ q/ C
3 将and 改为or。
! |0 X/ g6 M2 v* b" ~ 4将in改为on。on average 是固定用法。4 W) c& h3 j- X0 f; v! ]% F/ C- e
5 将as 改为while或者whereas
9 x! P6 i- [$ j6 {5 a, K 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for5 e4 A" h, o' M) k( d
7 删掉第一个of。despite 做介词,后面直接接名词。7 z+ c1 A' e' b2 |
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。, x4 v: x% Y: @7 J
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。
+ l% e- y2 {5 A 10在for后面加不定冠词a。 |