Calla lily is a perennial stout herb in the family of Amanita, genus Calla Lily, with basal leaves, thicker leaves, green in color, spathe 10-25 cm long, and cylindrical fleshy inflorescences. Crabapple is an epiphytic succulent plant of Cactaceae, Crabapple genus, stems without thorns, multi-branched, old stems lignified, young stems flattened flowers solitary at the top of the branch, the color of the flower is rose-red.
Nomenclature means that we need to focus on what characteristics of the object the word refers to is named according to, and in the 2019 National Exam a question on naming by shape was tested:
Example Calla Lily:Crab Claw Orchid
A. Petunia:Plantain
B. Cabbage:Nightshade
C. Lantern Pepper:Enoki Mushroom
D. Bergamot: Mimosa
Calla lilies and crabapple orchids are both plants in the question, and they are in an oppositional relationship. Observation of the options can be found, the four options of the words are the juxtaposition of plants, is an opposing relationship, can not choose the only option. At this point, we can carry out secondary analysis, the question stem "calla lily" and "crabapple orchid" are named after the appearance. In item C, "bell peppers" and "enoki mushrooms" are both named after their appearance, which is consistent with the logical relationship of the question, and the answer is obvious.
Naming by Function
"Naming by Function" means naming a word according to the function of the object to which it refers. For example, the function of a water heater is to heat water, the function of a calculator is to do calculations, and the function of laundry detergent is to do laundry.
Naming by material
"Naming by material" means that words are named according to the material from which they are made, e.g., the material of a wooden chair is wood, the material of a plastic bowl is plastic, the material of an iron basin is iron, the material of a badminton ball is feathers, and so on.
Named according to origin
"Named according to origin" of the word is named according to the origin of the object referred to by the word, for example: Xuan paper origin is Anhui Xuancheng, Darjeeling tea produced in Darjeeling, India and so on.