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How do experts evaluate the hazard that can be caused by BPA？
A.They think it is so common in bodies that it isnt hazardous material．
B.Different groups hold different viewpoints on this issue．
C.They believe it will be transformed into other safe materials．
D.They consider the amount of BPA in bodies decides its harmfulness．
答案
更多“How do experts evaluate the hazard that can be caused by BPA？A.They think it is so commo”相关的问题
第1题
CONCERNED IN CONTRIBUTES A. DO THEIR JOBS (62)______THEIR OWN WAY
B. AS FAR AS INCREASING PRODUCTIVITY IS (63)______
C. HOW MUCH EACH WORKER (64)______TO THE PRODUCT HE IS MAKING IN RECENT YEARS MANY COUNTRIES OF THE WORLD HAVE BEEN FACED WITH THE PROBLEM OF HOW TO MAKE THEIR WORKERS MORE PRODUCTIV
E. SOME EXPERTS CLAIM THE ANSWER IS TO MAKE JOBS MORE VARIE
D. BUT DO MORE VARIED JOBS LEAD TO GREATER PRODUCTIVITY？ THERE IS EVIDENCE TO SUGGEST THAT WHILE VARIETY CERTAINLY MAKES THE WORKERS" LIFE MORE ENJOYABLE, IT DOES NOT ACTUALLY MAKE THEM WORK HARDER. (65) , THE VARIETY IS NOT AN IMPORTANT FACTOR. OTHER EXPERTS FEEL THAT GIVING THE WORKERS FREEDOM TO (66)______IS IMPORTANT AND THERE IS NO DOUBT THAT THIS IS TRU
E. THE PROBLEM IS THAT THIS KIND OF FREEDOM CANNOT EASILY BE GIVEN IN THE MODERN FACTORY WITH ITS COMPLICATED MACHINERY WHICH MUST BE USED IN A FIXED WAY. THUS WHILE FREEDOM OF CHOICE MAY BE IMPORTANT, THERE IS USUALLY VERY LITTLE THAT CAN BE DONE TO CREATE IT. ANOTHER IMPORTANT CONSIDERATION IS (67)______HE IS MAKIN
G. IN MOST FACTORIES BOSSES ARE NOW EXPERIMENTING WITH HAVING MANY SMALL PRODUCTION LINES RATHER THAN ONE LARGE ONE, SO THAT EACH WORKER CONTRIBUTES MORE TO THE PRODUCTION ON HIS LIN
E. IT WOULD SEEM THAT NOT ONLY IS DEGREE OF THE WORKER CONTRIBUTION AN IMPORTANT FACTOR, BUT IT IS ALSO ONE WE CAN DO SOMETHING ABOUT.
第2题
Other experts feel that giving the worker freedom to do his job in his own way is important and there is no doubt that this is true. The problem is that this kind of freedom cannot easily be given in the modern factory with its complicated 【C4】______ which must be used in a fixed way, Thus while freedom of choice may be important, there is usually very little that 【C5】______ to create it. Another important 【C6】______ is how much each worker contributes to the product be is making. In most factories the worker sees only one small part of the product. Some car factories are now experimenting with having many small production lines rather than one large one, so that each worker contributes more to the production of the cars on his line It would seam that not only is the 【C7】______ of workers' contribution an important factor, 【C8】______ , but it is also one we can do something about.
To what extent does more money lead to greater productivity？ The workers themselves certainly think this is important. But perhaps they want more money only because the work they do is so boring. Money just lets them enjoy their spare time more. A similar argument may explain 【C9】______ for shorter working hours. Perhaps if we succeed in making their jobs more interesting, they will neither want more money, nor will shorter 【C10】______ hours be so important to them.
【C1】______
A．have been faced
B．have been facing
C．were faced
D．had faced
第3题
Other experts feel that giving the worker freedom to do his job in his own way is important and there is no doubt that this is true. The problem is that this kind of freedom cannot easily be given in the modern factory with its complicated machinery which must be used in a fixed way. Thus while freedom of choice may be important, there is usually very little that can be done to create it. Another important consideration is how much each worker contributes to the product he is making. In most factories the worker sees only one small part of the product. Some car factories are now experimenting with having many small production lines rather than one large one, so that each worker contributes more to the production of the cars on his line. It would seem that not only is the degree of workers' contribution an important, factor, therefore, but it is also one we can do something about.
To what extent more money led to greater productivity？ The workers themselves certainly think this is important. But perhaps they want more money only because the work they do is so boring. Money just lets them enjoy their spare time more. A similar argument may explain demands for shorter working hours. Perhaps if we succeed in making their jobs more interesting, they will neither want more money, nor will shorter working hours be so important to them.
Which of these is not a possible factor leading to greater productivity？
A．To make jobs more varied.
B．To give the worker freedom to do his job in his own way.
C．Degree of work contribution.
D．Demands for longer working hours.
第4题
【T12】
A.CONCERNED
B.IN
C.CONTRIBUTES A.DO THEIR JOBS【T7】______THEIR OWN WAY
B.AS FAR AS INCREASING PRODUCTIVITY IS【T8】______
C.HOW MUCH EACH WORKER【T9】______TO THE PRODUCT IN RECENT YEARS MANY COUNTRIES OF THE WORLD HAVE BEEN FACED WITH THE PROBLEM OF HOW TO MAKE THEIR WORKERS MORE PRODUCTIV
E.SOME EXPERTS CLAIM THE ANSWER IS TO MAKE JOBS MORE VARIE
D.BUT DO MORE VARIED JOBS LEAD TO GREATER PRODUCTIVITY？ THERE IS EVIDENCE TO SUGGEST THAT WHILE VARIETY CERTAINLY MAKES THE WORKERS" LIFE MORE ENJOYABLE, IT DOES NOT ACTUALLY MAKE THEM WORK HARDER.【T10】______, THE VARIETY IS NOT AN IMPORTANT FACTOR. OTHER EXPERTS FEEL THAT GIVING THE WORKERS FREEDOM TO【T11】______IS IMPORTANT ANDTHERE IS NO DOUBT THAT THIS IS TRU
E.THE PROBLEM IS THAT THIS KIND OF FREEDOM CANNOT EASILY BE GIVEN IN THE MODERN FACTORY WITH ITS COMPLICATED MACHINERY WHICH MUST BE USED IN A FIXED WAY.THUS WHILE FREEDOM OF CHOICE MAY BE IMPORTANT, THERE IS USUALLY VERY LITTLE THATCAN BE DONE TO CREATE IT.ANOTHER IMPORTANT CONSIDERATION IS【T12】______HE IS MAKIN
G.IN MOST FACTORIES BOSSES ARE NOW EXPERIMENTING WITH HAVING MANY SMALL PRODUCTION LINES RATHER THAN ONE LARGE ONE, SO THAT EACH WORKER CONTRIBUTES MORE TO THE PRODUCTION ON HIS LIN
E.IT WOULD SEEM THAT NOT ONLY IS DEGREE OF THE WORKER CONTRIBUTION AN IMPORTANT FACTOR, BUT IT IS ALSO ONE WE CAN DO SOMETHING ABOUT.
第5题
M: Arm exercises.'？ Is that because our arms are too fat or flabby？
W: Actually, that's not the main reason. They say that arm exercises are an ideal way to become physically fit.
M: But (19)don't arm exercises raise your blood pressure？
W: That they do. (20) But the article I read mentioned ways to compensate for that.
M : How？
W: By adding leg exercises, so the arms don't do all the work. Ann exercises alone aren't enough to increase metabolism before fatigue sets in. (2l)The more of the body that's involved in the exercise, the better.
M: And in turn, I'm sure that there's a greater chance of losing weight.
W: Sounds right to me.
M: So what exercises do the experts recommend？
W: They mentioned quite a few but some of the more popular ones (22)are cycling with special bicycles that make you use both your arms and legs, and walking vigorously while you wear arm weights.
M: I must try. that, I like to walk a lot.
(23)
A．They don't get rid of flabby arms.
B．They can damage arm muscles.
C．They aren't acceptable to most people.
D．They can raise one's blood pressure.
第6题
听力原文： When my son Ryan saw a T-shirt on sale for 5 dollars marked down from 8, he told me, "We'll save 3 dollars (32)if we buy it now. " He looked at me in surprise when I answered, "We'll save 5 dollars if we don't hay it at all. "
Today's children get lots of messages and values from television and from friends. They are encouraged to buy things they don't need. (33)What they need is an understanding of the value of the dollar. How do children learn the important facts of life？ Most schools do not teach them. It is up to parents to help their children.
To learn about money children need to have some. Early on, parents often handed oat money on an as-needed basis. But experts say paying certain amount of money each week is the best way to teach children the meaning of money, how to use it and how to plan.
But how much should the parents give？ Some experts suggest giving one dollar for each year of age, but (34)Dr. Olivia Mellan disagrees: " I think 5 dollars a week is too much for a 5-year-old, and 15 dollars is probably not enough for a 15-year-old." What's right depends on three things: the child's level of development, how much you can give, and what you expect him to pay for.
However much you give them, children will soon feel they need more. But Sharon M. Danes, a professor at the University of Minnesota, insists that children don't need a raise each year. "There's no lesson to be learned when children expect an increase just because they are a year older," she says. (35)"What they should learn is how to be good money earners, savers and spenders."
(33)
A．To save 3 dollars.
B．To buy it at once.
C．To ask 3 dollars from the parent.
D．To save 5 dollars.
第7题
M: Arm exercises？ Is that because our arms are too fat or flabby？
W: Actually, that's not the main reason. They say that arm exercises are an ideal way to become physically fit.
M: But don't arm exercises raise your blood pressure？
W: That they do. But the article I read mentioned ways to compensate for that.
M: How？
W: By adding leg exercise so the arms don't do all the work. Arm exercises alone aren't enough to increase metabolism before fatigue sets in. The more of a body that involves in the exercise, the better.
W: Sounds right to me.
M: So, what exercises do the experts recommend？
W: They mentioned quite a few. But some of the more popular ones are cycling with special bicycles that make you use both your arms and legs, and walking vigorously while wearing arms weights.
M: I must try that. I like to walk a lot.
(20)
A．They don't get rid of flabby arms.
B．They can damage arm muscles.
C．They aren't acceptable to most people.
D．They can raise one's blood pressure.
第8题
【T11】
A.CONCERNED
B.IN
C.CONTRIBUTES A.DO THEIR JOBS【T7】______THEIR OWN WAY
B.AS FAR AS INCREASING PRODUCTIVITY IS【T8】______
C.HOW MUCH EACH WORKER【T9】______TO THE PRODUCT IN RECENT YEARS MANY COUNTRIES OF THE WORLD HAVE BEEN FACED WITH THE PROBLEM OF HOW TO MAKE THEIR WORKERS MORE PRODUCTIV
E.SOME EXPERTS CLAIM THE ANSWER IS TO MAKE JOBS MORE VARIE
D.BUT DO MORE VARIED JOBS LEAD TO GREATER PRODUCTIVITY？ THERE IS EVIDENCE TO SUGGEST THAT WHILE VARIETY CERTAINLY MAKES THE WORKERS" LIFE MORE ENJOYABLE, IT DOES NOT ACTUALLY MAKE THEM WORK HARDER.【T10】______, THE VARIETY IS NOT AN IMPORTANT FACTOR. OTHER EXPERTS FEEL THAT GIVING THE WORKERS FREEDOM TO【T11】______IS IMPORTANT ANDTHERE IS NO DOUBT THAT THIS IS TRU
E.THE PROBLEM IS THAT THIS KIND OF FREEDOM CANNOT EASILY BE GIVEN IN THE MODERN FACTORY WITH ITS COMPLICATED MACHINERY WHICH MUST BE USED IN A FIXED WAY.THUS WHILE FREEDOM OF CHOICE MAY BE IMPORTANT, THERE IS USUALLY VERY LITTLE THATCAN BE DONE TO CREATE IT.ANOTHER IMPORTANT CONSIDERATION IS【T12】______HE IS MAKIN
G.IN MOST FACTORIES BOSSES ARE NOW EXPERIMENTING WITH HAVING MANY SMALL PRODUCTION LINES RATHER THAN ONE LARGE ONE, SO THAT EACH WORKER CONTRIBUTES MORE TO THE PRODUCTION ON HIS LIN
E.IT WOULD SEEM THAT NOT ONLY IS DEGREE OF THE WORKER CONTRIBUTION AN IMPORTANT FACTOR, BUT IT IS ALSO ONE WE CAN DO SOMETHING ABOUT.
