The hunter-gatherer tribes that today live as our prehistoric human __1__
0 X' g& p' @7 N6 U$ ] ancestors consume primarily a vegetable diet supplementing with animal foods __2__
5 {8 r) `! z9 o8 v7 n An analysis of 58 societies of modern hunter-gatherers, including the Kung of
' Y6 ]5 o: u$ W8 G4 }. K# d, k: z southern Africa, revealed that one-half emphasize gathering plants foods,
. P) N; b; u0 c# f; C& |8 ]& } one-third concentrate on fishing, and only one-sixth are primarily hunters,
$ n% A( J0 z4 d G/ O- m/ U1 | Overall, two-thirds and more of the hunter-gatherer’s calories come from __3__+ Y" | M7 r( {6 `; K, D. c+ |
plants. Detailed studies of the Kung by the food scientists at the University* Z: P2 T0 r# N0 I& d/ S; S
of London, showed that gathering is a more productive source of food, M9 ^7 @5 _( Y& K- h: C w6 F
than is hunting. An hour of hunting yields in average about 100 edible __4__
" i# u" @" O8 e# b5 f) Z$ X5 ]( f C calories, as an hour of gathering produces 240. __5__
: b: m1 v* D0 c Plant foods provide for 60 percent to 80 percent of the Kung diet, and no __6__
& u, L) a+ b4 \% Y one goes hungry when the hunt fails. Interestingly, if they escape fatal infections
3 n+ v% G! h: h9 S3 S i6 y. `* ^, l: m or accidents, these contemporary aborigines live to old ages despite of the absence __7__
+ g# H3 C5 K" n4 ^7 P S5 h& L of medical care. They experience no obesity, no middle-aged spread, little; d5 A; E, B4 ^$ s# e
dental decay, no high blood pressure, no heart disease, and their blood& U) x* ?5 V3 o& z/ U- m9 W
cholesterol levels are very low (about half of the average American adult). __8__
5 ~5 d$ T7 Y6 l, `/ ~ L If no one is suggesting that we return to an aboriginal life style, we certainly __9__
, U, \( H) v% e7 S could use their eating habits as a model for healthier diet. __10__7 \4 Q: K0 l, m! T0 K7 K
参考答案及解析:1 X* y: ]0 ^6 S# ?) C/ I" T
1. 将as 改为like
3 u+ ^2 d. T/ e& e3 O8 {/ p5 x 此处的意思是“像史前人类祖先那样生活”。) O( w3 |# ^" w+ P4 ~8 `) Z
2. 将supplementing改为supplemented9 P; {6 F" I" d7 l/ v" C, S
supplemented 修饰diet,可以看作which is supplemented with animal foods的简化形式。8 n# G. R+ L; b2 R2 W' W
3. 将and 改为or0 `6 J4 q K W
4. 将in改为on
5 \4 ^7 `) q: w! w- H# k on average 是固定用法。* \8 n! y7 w0 |2 [. G) r: d
5. 将as 改为while或者whereas1 h: @$ d4 o, @! W- `% g
6. 删掉for,或者将provide改为account
3 R6 j, L1 s. C8 o# N+ F+ { 此处provide 是及物动词,后面不用介词for& g4 f f l g
7. 删掉第一个of. A+ }+ C5 G) {
despite 做介词,后面直接接名词。
: R, I! D* A! ]! ~# G6 F 8. 在half后加that
3 l/ T7 ~2 g) J7 \9 n6 F2 k 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。
. R/ K; V7 J, v5 f 9.将if改为whereas或者while
% R2 Y1 `( D9 q. c4 G7 v 此处意思为“尽管没有人……,但是……”,是转折关系。& D* m0 E% r q* F" c8 L6 Q% V
10.在for后面加不定冠词a。 |