A psychoactive drug is one that acts(i) __________

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简答题 A psychoactive drug is one that acts(i) ___________upon the central nervous system，where it(ii) ___________brain function，causing significant changes，forexample，in mood or consciousness．

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B，E If the drug causes“ significant changes，”it does not act moderately(choice A)．It acts mostly，or primarily(choice B)，on the central nervous system，causing changes or alterations(choice F)in brain function．

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1 In the same way that Homer(i) ___________ancient traditions of sung poetry, so did the historian Herodotus use the(ii) ___________of oral storytelling．

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2Regulation of food and drugs has often--perhaps always--derived from an accidental adulteration of said food and drugs that resulted in consumer deaths． A classic example is the Bradford sweets poisoning of l858．In this case，aLine confectionary salesman known as “Humbug Billy” purchased the sweets sold
(5)at his stand from a wholesaler，Joseph Neal．To hold down costs，Neal cut the expensive sugar in his candy with daft，which may have been a less-than-nutritious combination of crushed limestone and plaster of paris．on the occasion in question，a series of circumstances led Neal’s daft supplier to substitute 12 pounds of the wrong powder．The candy was mixed witll arsenic trioxide rather than daft，
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3Tourists from America are often surprised to learn that a kipper is not a particular kind of fish but rather a fish prepared in a certain way．Kippers are herring that have been split down the spine，salted or pickled，and then smoked．Kippering，then，Line is the process of salting prior to smoking．You can kipper things other than fish；(5)for example，kippered beef is much like beef jerky．In British cuisine，kippers are often served with scrambled eggs and toast for breakfast or with potatoes and buttered bread for lunch．Many kipper aficionados believe that the best kippersin the world come from the Isle of Man．Many kippers are available online and in gourmet shops throughout the world．Consider each of the choices separately and select all that apply．
Based on the information in the passage，it can be inferred that a dictionary definition of kipper might include which of the following?

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