首页
登录
职称英语
Artificial flowers are used for scientific as well as for decorative purpose.
Artificial flowers are used for scientific as well as for decorative purpose.
游客
2023-12-31
43
管理
问题
Artificial flowers are used for scientific as well as for decorative purpose. They are made from a variety of materials, such as silk and glass, so skillfully that they can scarcely be distinguished from natural flowers. In making such models, painstaking skill and artistry are called for, as well as thorough knowledge of plant structure.
The collection of glass flowers in the Botanical Museum of Harvard University is the most famous in North America and is widely known throughout the scientific world. The life-size models include 847 species, with remarkably accurate anatomical sections and enlarged flower parts. They are made entirely of glass, often reinforced internally with a wire support.
The models in colored glass are the work of two artist-naturalists, Leopold Blaschka and his son Rudolph who made them from 1887 through 1936. Their lineage of jewelers and glassmakers traces as far back as the 15th century. The parts were shaped after the glass was softened by heat. Some models were blown. Colored glass was used for many, others were "cold-painted" with a thin wash of colored ground glass or metal oxides and heated until the material fused to the model.
Since the glass flowers are always in bloom, tropical and temperate species may be studied year-round. The gallery is open during regular museum hours and is included in the general admission fee.
The museum recently installed several Blaschka glass models from the ware collection which have not been seen at Harvard for decades. You can even see amazingly realistic models of apple and apricot plants illustrating some of the diseases affecting fruits of the Rosaceae family. Other newly installed models illustrate insect pollination, displaying bees enlarged to five inches in size to show pollination techniques.
The intention of the collection was to have it represent at least one member of each flower family native to the United States. Harvard Professor George Lincoln Goodale, founder of the Botanical Museum, wanted life-like representatives of the plant kingdom for teaching botany. At the time only crude papier-mache or wax models were available. Mrs. Elizabeth C. Ware and her daughter Mary Lee Ware financed the collection and presented it.
Though
it
was never completed, it contains species representing 164 families of flowering plants, a group of fruits showing the effect of fungus diseases, and thousands of flower parts and magnified details. Every detail of these is accurately reproduced in color and structure. The models are kept in locked cases as they are too valuable and fragile for classroom use. [br] The materials for making the artificial flowers and other plants do NOT include______.
选项
A、glass
B、wood
C、metal
D、paint
答案
B
解析
错误排除。从第三段第三行开始,文章就玻璃花模型的原材料予以陈述,提到了glass,colored,cold-painted以及metal oxides,唯独没有提到wood。【知识拓展】可在原文中勾选提到的选项,然后顺利排除错误项目。
转载请注明原文地址:https://tihaiku.com/zcyy/3320489.html
相关试题推荐
Sheburiedherfaceintheflowersdrinkinguponthefragrance.upon改成in
Theflowersinthevaseshriveledbecausetheyhadn’tbeenwateredforaweek.A、
Thesecurityrationaleisveryimportantforanyscientificortechnologicalend
Scientificevidencefromdifferentdisciplinesdemonstratesthatinmosthumans
Scientificevidencefromdifferentdisciplinesdemonstratesthatinmosthumans
Theflowersinthevaseshriveledbecausetheyhadn’tbeenwateredforaweek.A、
Dozensofscientificgroupsallovertheworldhavebeen______thegoalofaprac
Ordinarypeoplearenowlackingofthescientificknowledgeaboutnutrition.A、sh
Theflowersinthevaseshriveledbecausetheyhadn’tbeenwateredforaweek.A、
Ifcauliflowersareexposedfromextremetemperatures,theheadsgetdiscolored.
随机试题
Thisagreementisvery______andopentovariousinterpretations.A、ingeniousB、am
CreateaConservation-OrientedCampus1.建设节约型校园十分重要2.原因是…3.为了建设节约型校园我们应该…
Inthedeadman’sbedroomthepolicefoundseveralimportant______whichpointed
甲单位为一中央级事业单位,在履行报批手续后对外转让一项股权投资,该投资系以单位开
在下列财务分析主体中,必须对企业营运能力、偿债能力、盈利能力及发展能力的全部信息
根据水闸承担的任务不同,用来截断河渠、抬高河渠水位、控制下泄流量称为()A.
血管内溶血最严重的标志是()A.血浆血红素结合蛋白减低B.含铁血黄素尿出现C.
庆历新政失败后,积贫积弱的局面一延其旧,改革议论不绝于朝野,神宗时任用王安石变法
男性,16岁,“三多一少”症状2个月。2日前感冒发热,食欲减退。血糖18.6m
母公司编制合并报表时,应将非全资子公司向其出售资产所发生的未实现内部交易损益全额
最新回复
(
0
)