单项选择题
1、
I apologize for __________my promise.
A． not having kept 
B． being kept 
C． not to have kept 
D． having not kept


2、 Expected noises are usually more __________ than unexpected ones of the like magnitude.
A．manageable
B．controllable
C．tolerable
D．perceivable


3、
Questions are based on the following passage.
For some time spent it has been widely accepted that babies -- and other creatures --learn to do things because certain acts lead to "rewards"; and there is no reason to doubtthat this is true．But it used also to be widely believed that effective rewards, at least in theearly stages, had to be widely related to such basic physiological (生理上的) "drives" asthirst or hunger．In other words, a baby would learn if he got food or drink or some sort ofphysical comfort, not otherwise.
It is now clear that this is not so．Babies will learn to behave in ways that produceresults in the world with no reward except the successful outcome.
Papousek began his studies by using milk in the normal way to "reward" the babies andso teach them to carry out some simple movements, such as turning the head to one side orthe other．Then he noticed that a baby who had had enough to drink would refuse the milkbut would still go on making the learned response with clear sign of pleasure．So he began tostudy the children's responses in situations where no milk was provided．He quickly foundthat children as young as four months would learn to turn their heads to right or left if themovement "switched on" a display of lights -- and indeed that they were capable of learningquite complex turn to bring about this result, for instance, two left or two right, or even tomake as many as three turns to one side.
Papousek's light display was placed directly in front of the babies and he made theinteresting observation that sometimes they would not turn back to watch the lights closelyalthough they would "smile and bubble" when the display came on．Papousek concluded thatit was not primarily the sight of the lights which pleased them, it was the success they wereachieving in solving the problem, in mastering the skill, and that there exists a fundamentalhuman urge to make sense of the world and bring it under intentional control.
According to the author, people used to believe that babies learn to do things which__________.
A．are directly related to pleasure
B．will meet their physical needs
C．will bring them a feeling of success
D．will satisfy their curiosity


4、
Though he was generally acknowledged to be very competent, his co-workers__________about his promotion in the company.
A．expected
B．indicated
C．resented 
D．regretted


5、 He will write to me as soon as he ________home．
A．will have returned 
B．returns
C．returned
D．will return


6、 I can ________you for your rude manners but you must apologize in public．
A．forbid
B．forget
C．forecast 
D．forgive


7、 He tried several times to pass the exam. __________ the end, he succeeded.
A．On
B．In
C．At
D．By


8、 --Have you heard that Wang has divorced her husband.?
--________. She looks quite miserable.
A．I've heard of it
B．I've never heard of it
C．I feel so sorry
D．It's a pity


9、 Not a single mistake________in the test．
A．he made
B．did he make
C．he has made
D．made he


10、 The organization had broken no rules, but __________had it acted responsibly.
A．neither
B．so
C．either
D．both

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