题目内容
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The babies would "smile and bubble" at the lights because ______.
A．the lights were directly related to some basic "drives"
B．the sight of the lights was interesting
C．they need not turn back to watch the lights
D．they succeeded in "switching on" the lights
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更多“The babies would "smile and bu…”相关的问题
The two babies were deliberately kept from adults ______.
A．to whether they could learn to speak without the help of adults
B．to prove that Phrygian was the first language of mankind
C．to see whether they would speak the Egyptian language
D．to discover which language would come most naturally
In Papusek's experiment babies make learned movements of the head in order to ______.
A．have the lights turned on
B．be rewarded with milk
C．please their parents
D．be praised
A. released
B. delivered
C. restored
D. applied
In Papusek's experiment babies make learned movements of the head in order to ______. ()
A．have the lights turned on
B．be rewarded with milk
C．please their parents
D．be praised
New-born babies ______.
A．can only use their right bands
B．can only use their left hands
C．can't use their hands at all
D．can use either hand to catch things
A．what
B．which
C．that
D．whose
The best title of the passage is ______ .
A．Newborn babies can use both hands well
B．Most human beings use their right hands better
C．Few human beings use their left hands
D．We live in a right-handed world
We can infer from the passage that elephants may ______
A．run into other elephant families
B．give wrong warnings to their mothers
C．run away on hearing a strange sound
D．produce more babies by gathering together often
A．a basic human desire to understand and control the world
B．the satisfaction of certain physiological needs
C．their strong desire to solve complex problems
D．a fundamental human urge to display their learned skills
The most serious problem man is facing is thought to be ______.
A．the using of the earth's resources
B．the control over the waste of the natural materials
C．how to slow down the increase of population
D．how to stop the birth of new babies
We can conclude from this passage that ______.
A．many turtles die while swimming to shore
B．female turtles protect their babies
C．once turtles leave land, they never return to the sea
D．the job of laying eggs takes tremendous strength
