Artificial(假的) flowers are used for scientific as well as for decorative purposes. They are mad.

小题1:A

小题2:C

小题3:B

小题1:短文说明了美国the Botanical Museum of Harvard University收藏玻璃花的目的、收藏品的丰富、精致的细节等内容,所以用An Extensive ?Collection? of Glass Flowers作标题最合适。?

小题2:　根据第二段的“The intention was to have the collection represent at least one member of each flower family native to the United States.”可知收藏的目的是把美国所有的花都复制一种。

小题3:　根据它前后的内容:目的是使收藏能代表美国的每一类花,尽管还没有完成,只能是收藏还没有完成。?