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
18
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
WhydoestelevisioncarrymorenationaladvertisingthananyothermediuminPor
[originaltext]Kenyaisthethird-largestteaproducerintheworld.Almostall
关于钢筋混凝土预制桩加工制作,说法正确的是()。A.长度在10m以上的桩必须工
妊娠合并心脏病患者,第二产程处理措施不正确的是A.阴道助产 B.取膀胱截石位
《变电评价管理规定》:国网运检部每年对省公司管辖一类变电站抽查考核的数量不少于(
履行统一领导职责或者组织处置突发事件的人民政府在事后恢复与重建中的义务不包括(
下列不属于贷后检査范围的是()。A.对借款人的检查 B.对合同主体变更的
《义务教育法》的立法宗旨包含().A.发展基础教育 B.发展职业教育 C.
关于奥肯定律的含义和作用的说法,正确的有( )。A.奥肯定律揭示了经济增长和失
某公司息税前利润为1000万元,债务资金为400万元,债务税前利息率为6%,所得
最新回复
(
0
)