Of Studies: Some books are to be tasted, others to be swallowed, and some few to be chewed
A、consist of protein molecules embedded in a fluid bilayer of phospholipids
B、consist of a mosaic of polysaccharides and proteins.
C、are a phospholipid bilayer between two layers of hydrophilic proteins.
D、are a single layer of phospholipids and proteins.
阅读理解。 |
One of today's hottest topics among women (and to an extent among men too now) is anti aging and how to reverse the signs of age. The beauty industry has responded to this by offering a wide collection of anti aging creams and other anti aging products aimed at all pocketbooks, ranging from economical to highly priced. And the question is "do any of these often much-vaunted (被过度吹嘘的) anti aging creams actually work?" And if they do,how precisely do they perform their miracles? Well the appropriate response to that is that they do work - after a fashion. There certainly are anti aging creams available for a relatively modest price that will reduce the appearance of wrinkles in a comparatively short period of regular application. But this really is the limit of their powers: they won't actually undo skin damage or eradicate (根除) all signs of age;they will simply modify them,some more effectively than others. The way they work is like so: they remove upper layers of dead skin cells and make deeper layers absorb water,serving to plump them up and make them look fuller and healthier. But since such anti aging creams only go skin deep,as it were,skin damage will reappear once you stop using the anti aging wrinkle cream. This means fairly heavy regular use,which might be costly depending on your choice of product. However,if you can afford it or think it's worth the cost,it won't be such an issue. After all,what woman wants to look older than her years when looking good is so tied up with many women's self-esteem and sense of identity. A compromise (折中) solution for thoseon a tighter budgetis to use the cheaper creams. In addition,it's always wise to be a little experimental to make sure you end up with the one that suits our skin best. So,to sum up: an anti wrinkle face cream will work within limits,depending on your objective. |
1.This passage mainly tells us something about __________. |
A. anti aging creams B. anti aging foods C. anti wrinkle face D. anti wrinkle skin |
2.According to the author,we can infer __________. |
A. anti aging creams must reverse the signs of age B. skin damage must not reappear after using creams C. anti aging creams should be properly used D. skin damage will disappear forever after using creams |
3.The benefits from anti aging creams are the following except that __________. |
A. they remove upper layers of dead skin cells B. they make deeper layers absorb water C. they make layers look fuller and healthier. D. they make wrinkle faces rough |
4.The meaning of the underlined phrase "on a tighter budget" is __________. |
A. having a larger amount of money B. having a smaller amount of money C. having no money at all D. having a lot of money |
5.Fairly heavy regular use will make you __________. |
A. spend much money on your choice of product B. easily afford your choice of product C. think your choice of product wrong D. believe your choice of product right |
A、Italy
B、the United States
C、Greece
D、Southeast Asia
A、valuable
B、invaluable
C、unvaluable
D、valueless
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