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Animals do not eat more than their bodies need. They seem to have the (1)___
Animals do not eat more than their bodies need. They seem to have the (1)___
游客
2023-11-11
17
管理
问题
Animals do not eat more than their bodies need. They seem to have the (1)______ to eat when they are hungry. It has been demonstrated that rats will,(2)______given a choice over a period of time,(3)______ water with vitamins to water without vitamins(4)______there is no difference in taste or smell between the two water bottles. When a(5)______ flavor was added to the vitamin-enriched (6)______, the rats did seem to (7)______ a taste for it and kept drinking it, even after the vitamins were (8)______to the clear water.(9)______, however, they broke the habit and went back to(10)______ the necessary vitamins were.
In a classic experiment, babies of 6 to 12 months old were(11) ______ in a cafeteria feeding arrangement,(12)______a wide selection of baby food before them. They were given whatever food they pointed to or appeared(13)______in. We are told that at first they showed some unusual eating (14)______, but that over a period of time they managed to select well-balanced(15)______.
So, in selecting food, rats and babies do seem to know and act(16)______ what’s best for them. Apparently, humans soon(17)______a kind of " body wisdom" when growing up.(18)______of us do not eat as wisely as we could. Many of our food preferences are(19)______determined and influenced by long-established habits. Some people eat fox, dog and blackbirds,(20)______we eat cows and pigs. So what people eat and how much they eat seems to be greatly influenced by what is going on around them. [br] (2)
选项
A、because
B、when
C、if only
D、whereas
答案
B
解析
连词辨析题。[B]when引出过去分词短语作状语,表示“在……的情况下”,符合句意,故为正确答案。由于句子各部分间不是因:果关系,所以可以排除[A]because;[C]if only与虚拟语气连用,表示“要是……多好”,而此处不是虚拟语气,可以排除;[D]whereas的意思是“然而”,表示转折,不符合上下文逻辑关系,故排除。
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