step by step (初级刀客)
step1:看单词2LISTS(回到了从前)TOEFL,IBT,托福,新托福,机经,小马过河,留学,美国,海外0 ]% b% s3 }! K! |
step2:看老友记也算吧小马过河-新托福专业备考社区) _. Z1 o/ V. F
step3:看了昨天听写的内容(如下)www.xiaomaguohe.net5 q3 ?8 Z. e9 d
www.xiaomaguohe.net h; C, d9 j1 k
horse的讲义
2 Y- y& E4 a& j9 ?8 B1 V& Iwww.xiaomaguohe.netwe all heard the proverb"beauty is only skin-deep" meaning that the outward appearance is not a valuble way to judge person's worth. but research studing why animals are attracted to each other had found that opposite may be true for animals. for them a beautiful face and body are reasonable reliable indicators of underline quality and experiments had shown that many species appear to look for at least one classic characteristic of beauty mainly symmetry. now according to this theory , a more selective partner in the pair usually the female seek the maximum possible balance between the left and right half of the potential mate's body. for exampe, certain femle birds first check to see if the male's wing is the same length and shape of the right to get clues about the bird's health and strength. now what other evidence do we have of this kind of behavior? well, in one of the experiments,researchs put color bands on both legs over those that has different color on each leg. another experiment involve the male elks indicate the importance of symmetry inthe antlers. asymmetric antlers of course often indicate that the male has lost a fight to another male and he is therefore not the strongest
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+ T t C- f+ K% D3 \/ A% P8 A小马过河-新托福专业备考社区进度有些慢哦... [小马过河-新托福专业备考社区]9 `2 g' n* V# J [# C& @7 P+ ^
坚持就是胜利
