雅思寫作小作文的倍數(shù)該如何表達(dá)？

雅思寫作一般是圖表題，線狀圖和餅狀圖會(huì)經(jīng)常出現(xiàn)倍數(shù)增長(zhǎng)的情況，那么大家對(duì)英語中倍數(shù)表達(dá)的方式清楚嗎？表達(dá)增長(zhǎng)我們會(huì)使用increase， rise， go up這類動(dòng)詞，但是如果作文中恰好出現(xiàn)倍數(shù)關(guān)系，該如何表達(dá)呢？

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倍數(shù)基礎(chǔ)表達(dá)法：

①A +is…times +as+ adj.原級(jí)+as +B

②A +is…times+ adj.比較級(jí)+than +B

③A +is…times+ the size/length/height/width/depth +of + B

④The size/length/height/width/depth… +of+ A+ is…times of +B

⑤The +n.…+is …times+ what從句

這張桌子是那張桌子的三倍大。

This table is 3 times as big as that one.

This table is 3 times bigger than that one.

This table is 3 times the size of that one.

The size of this table is 3 times of that one.

今年的產(chǎn)量是2006年的3倍。

The output of this year is 3 times what it was in 2006.

關(guān)鍵詞：小作文 倍數(shù) 表達(dá) 

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倍數(shù)高級(jí)表達(dá)法：

(1)…是原來的…倍：數(shù)字 + -fold

(2)…增長(zhǎng)或者下降了…倍: 數(shù)字-1 + -fold

…shows / experiences / witnesses/ undergo a three-fold increase / rise / decrease / reduction

是原來的3倍 / 增加或減少了2倍

例: Between 1971 to 1975, the population was up eigh

在倍數(shù)表達(dá)中，有幾種表達(dá)方式都是等價(jià)的，它們分別是：

1.倍數(shù)+as...as

2.倍數(shù)+比較級(jí)+than

3.倍數(shù)+the+名詞+of

This bridge is three times as wide as that one.（這座橋是那座橋的三倍寬。）

=This bridge is twice wider than that one.（這座橋比那座橋?qū)拑杀丁＃?/p>

=This bridge is three times width of that one.（這座橋的寬度是那座橋的三倍。）

例句：

1，過去十年，核能所占的比例已經(jīng)由之前的5%增長(zhǎng)到現(xiàn)在的10%。

Over the past decade, the percentage of nuclear power increased by 5% to 10%. 或者用double

Over the past decade, nuclear power doubled（此時(shí)用作動(dòng)詞） its percentage from 5% to 10%. 這樣可以增加句子的靈活度，也顯示自己的語法范疇寬泛。

2，農(nóng)業(yè)用水由1900年的500km3 增長(zhǎng)至現(xiàn)在2000km3.

Water used in agriculture is 4 times as much as that in 1900(500km3).

Water usage in agriculture is 3 times more than that in 1900 (500km3).

Agriculture quadrupled its usage from 500km3 in 1900 to 2000km3 at present.

在寫作中注意，當(dāng)作文中表示增長(zhǎng)的詞（increase， rise，go up ）已經(jīng)使用過，而且前后恰好對(duì)比的倍數(shù)關(guān)系的時(shí)候，用double triple 或者quadruple就顯得比較靈活，而且表達(dá)準(zhǔn)確，更能為自己作文加分。

關(guān)鍵詞：小作文 倍數(shù) 表達(dá) 

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