gradually中文意思 gradually( 二 )

【汉语】病毒只由核酸、蛋白质组成，有时还由膜包膜组成。感染宿主细胞后，它利用宿主细胞的分子制造新病毒，如这张简图所示。

请家长朋友特别注意：英语、法语、德语、意大利语、西班牙语表“病毒”的单词都源自拉丁语的virus 。
【英语】virus[?va??r?s]n.1. 〈医〉病毒；滤过性病原体2. 〈计〉计算机病毒
拆解：viru+s 。

词源：
virus (n.)
Origin and meaning of virus
late 14c., "poisonous substance" (a sense now archaic), from Latin virus "poison, sap of plants, slimy liquid, a potent juice," from Proto-Italic *weis-o-(s-) "poison," which is probably from a PIE root *ueis-, perhaps originally meaning "to melt away, to flow," used of foul or malodorous fluids, but with specialization in some languages to "poisonous fluid" (source also of Sanskrit visam "venom, poison," visah "poisonous;" Avestan vish- "poison;" Latin viscum "sticky substance, birdlime;" Greek ios "poison," ixos "mistletoe, birdlime;" Old Church Slavonic vi?nja "cherry;" Old Irish fi "poison;" Welsh gwy "poison").
The meaning "agent that causes infectious disease" emerged by 1790s gradually out of the earlier use in reference to venereal disease (by 1728); the modern scientific use dates to the 1880s. The computer sense is from 1972.

强烈建议大家先熟记vir（拉丁语，男人）再记忆viru- 。

英语的consist of 表“由……组成” 。

请看例句：
Water consists of hydrogen and oxygen.
水的成分是氢和氧.

【英语】consist[k?n?sist]vi.1. 由...组成，包括（of）2. 存在于（in）3. （与...）一致；并存，并立（with）4. ［古］生存；共存
拆解：con+sist 。

请牢记：源自拉丁语的con-=com-=col-=cor=co-对应源自希腊语的syn-=sym-=syl-=sy- ，表“共同，在一起” 。

例句：
Substances consist of small particles called molecules.
物质是由叫做分子的微粒组成的。

【英语】membranous /?membr?n?s/ adj. 膜的; 膜性的; 膜状的

词源：membranous (adj.)
"having a membrane; of or like a membrane," 1590s, from French membraneux (16c.), from membrane, from Latin membrana "a skin, parchment" (see membrane). The alternative form membraneous is recorded from 1630s.

【英语】membrane[?membre?n]n.1. （身体上的）薄膜，隔膜2. 细胞膜
拆解：membr+ane 。
词源：
membrane (n.)
early 15c., "thin layer of skin or soft tissue of the body," a term in anatomy, from Latin membrana "a skin, membrane; parchment (skin prepared for writing)," from membrum "limb, member of the body" (see member). The etymological sense is "that which covers the members of the body."

建议先熟悉mem-表“记忆”并顺便熟悉英语单词memory（记忆）， memorize（记下）， remember（记起）。

【英语】member[?memb?]n.1. 成员; (学会)会员; 社员; [Member ] 议员2. (身体的)一部分; 部分器官3. 部分;【语】分句;【逻】推论的命题4. (政治团体的)部门, 支部5. (植物躯干的)结构单元6. 构件7. 【地质】段8. 【数】元, 项, 分子, 端, (端)边9. 【化】节, 段; (环中)原子数

词源：member (n.)
c. 1300, "body part or organ, an integral part of an animal body having a distinct function" (in plural, "the body"), from Old French membre "part, portion; topic, subject; limb, member of the body; member" (of a group, etc.)," 11c., from Latin membrum "limb, member of the body, part," probably from PIE *mems-ro, from root *mems- "flesh, meat" (source also of Sanskrit mamsam "flesh;" Greek meninx "membrane," mēros "thigh" (the "fleshy part"); Gothic mimz "flesh").

【拉丁语】membrum：membrum, membri n. n. member, limb, organ; (esp.) male genital member; apartment, room; section;

【gradually中文意思 gradually】拆解：membr+um 。

gradually中文意思 gradually( 二 )

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