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influenced our ideals and aspirations as a people.
For some time..., it has been...
例文
For some time in the past it has been widely accepted that babiesand other creatureslearn to do things
because certain acts lead to "rewards": and there is no reason to doubt that this is true. But it used also to be
widely believed that effective reward, at least in the early stages, had to be directly related to such basic
physiological(生理)"drives" as thirst or hunger. In other words, a baby would learn if he got food or drink of some
sort of physical comfort, not otherwise.
survey
poll
study
report
research
例文
According to a Worldwide Wildlife Fund report, by 1970, only about 4,500 tigers survived throughout the
world-half of them in India.
as far as...is concerned
When it comes to...
In the case of
例文
In the case of man, the difficulties with the environmental concept are even more complicated because we
have to deal with man as an animal and with man as a bearer of culture.
established
proved
indicated
shown
declared
claimed
found
announced
made it known
例文
Researchers have established that when people are mentally engaged, biochemical changes occur in the
brain that allow it to act more effectively in cognitive areas such as attention and memory. This is true regardless
of age.
well known
believed
found
proved
reported
estimated
demanded
agreed
例文
It is agreed that they enjoy making noises, and that during the first few months one or two noises sort
themselves out as particularly indicative of delight, distress, sociability, and so on. But since these cannot be said
to show the baby's intention to communicate, they can hardly be regarded as early froms of language. It is agreed,
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