grade

英 [gre?d] 美[ɡred]

CET4TEM4考研CET6中頻詞基本詞匯

復數(shù):?grades;第三人稱單數(shù):?grades;過去式:?graded;過去分詞:?graded;現(xiàn)在分詞:?grading;

grade 等級，年級

來自PIE*ghredh, 走，臺階，層級，詞源同ingress, aggressive.后詞義通用化，年級。

grade (n.): 1510s, "degree of measurement," from French grade "grade, degree" (16c.), from Latin gradus "step, pace, gait, walk; step on a ladder or stair;" figuratively "a step, stage, degree," from gradi (past participle gressus) "to walk, step, go," from PIE *ghredh- "to walk, go" (cognates: Lithuanian gridiju "to go, wander," Old Church Slavonic gredo "to come," Old Irish in-greinn "he pursues," and second element in congress, progress, etc.). Replaced Middle English gree "step, degree in a series," from Old French grei "step," from Latin gradus.

Meaning "inclination of a road or railroad" is from 1811. Meaning "class of things having the same quality or value" is from 1807; meaning "division of a school curriculum equivalent to one year" is from 1835; that of "letter-mark indicating assessment of a student's work" is from 1886 (earlier used of numerical grades). Grade A "top quality, fit for human consumption" (originally of milk) is from a U.S. system instituted in 1912. To figuratively make the grade "be successful" is from 1912; early examples do not make clear whether the literal grade in mind was one of elevation, quality, or scholarship.
grade (v.): 1650s, "to arrange in grades," from grade (n.). Meaning "to reduce (a road, etc.) to a level or degree of inclination" is from 1835. Meaning "assign a letter mark to" is from 1931. Related: Graded; grading.

1. The boy first showed promise as an athlete in grade school.: 這個男孩在上小學的時候就初次顯示出成為運動員的潛力。

2. South Point College does not grade the students' work.: 南點學院不對學生的作業(yè)評分。

3. It was actually used for enriching uranium to weapons-grade levels.: 實際上，它是用來將鈾濃縮以制造武器。

5. All parts are machined from top grade, high tensile aluminium.: 所有零件都是用頂級高強度鋁加工而成。