a.表達倍數(shù)是兩倍/大一倍Double增長/減少了n倍 Increase/decreasen timesb.大約的表達方式
    數(shù)字 + or so
    Approximately + 數(shù)字
    About/around + 數(shù)字
    c.趨勢類詞匯
    波動動詞類:fluctuate
    持平動詞類: remainthe same, stabilize, remain stable, remain constant
    上升動詞類: increase, go up, rise up, grow up, jump up, surge, shoot up, keepanupward tendency下降動詞類: decrease, go down, decline, fall down, drop, sink, dip,keep adownward tendency
    修飾動詞的副詞:
    slightly 輕微地, slowly 緩慢地, gradually 逐漸地, steadily 穩(wěn)定地, rapidly 迅速地,moderately 溫和地, 輕微地, significantly 明顯地, sharply 明顯地, dramatically急劇地,drastically 急劇地
    句型表達
    句式一: 變化主體/圖畫中主體+趨勢動詞+副詞+時間區(qū)間
    句式二: There be + 形容詞 + 表示趨勢的名詞 + in+ 變化的主體+ 時間區(qū)間
    極值類詞匯和表達
    點:reachthe peak/top/highest point
    Increase to the peak/top/highest point(所有上升類的動詞都可以替換掉increase)
    最低點: reachthe bottom/lowest point
    drop to the bottom/lowest point(所有下降類的動詞都可以替換掉drop)
    占的最多:occupy/make up/take up/account for thelargestproportion/number/percentage of …
    占的最少:occupy/make up/take up/account for thesmallestproportion/number/percentage of…