英語(yǔ)六級(jí)攻克閱讀關(guān)鍵句284. Treatments for chronic conditions can eas

284. Treatments for chronic conditions can easily top $2,000 a month—no wonder that one in four Americans can't afford to fill their prescriptions.

譯文　慢性疾病每個(gè)月的治療花銷很容易達(dá)到2000美元——難怪有四分之一的美國(guó)人都治不起病。

點(diǎn)睛　本句的主干是Treatments...can...top $2,000...，破折號(hào)后的內(nèi)容則是對(duì)主句進(jìn)行補(bǔ)充說(shuō)明。one in four意為“四分之一”。

top在句中作動(dòng)詞，意為“達(dá)到，超過(guò)”，此外還含有“給……加頂；給……蓋蓋子”之意。如：

The workers are going to top the building tomorrow. 工人們打算明天給建筑封頂。

考點(diǎn)歸納　top作名詞時(shí)，相關(guān)的短語(yǔ)很常見(jiàn)。如：

from top to bottom / from top to toe意為“從上到下，從頭到腳；完全地”。如：

I know marketing from top to bottom. 我對(duì)市場(chǎng)營(yíng)銷了如指掌。

The stranger eyed me from top to toe. 陌生人從頭到腳地打量著我。

from the top意為“從頭，從開(kāi)始”。如：

The guitar player replayed the song from the top. 吉他手把這首歌從頭開(kāi)始又彈了一遍。

get on top of表示因無(wú)能為力而使（某人）感到挫敗和沮喪。如：

I don't want these boring things to get on top of you. 我可不想讓這些煩人的事情纏住你。

on top of意為“在……之上；除……之外”。如：

Five people were crushed when the building collapsed on top of them. 那座大樓倒塌時(shí)把下面的五個(gè)人砸死了。

On top of borrowing a large amount of money, he asked us to lend him our car. 他向我們借了一大筆錢，此外還向我們借汽車。

on top of the world本義指“在世界的頂端”，引申義為“幸福到極點(diǎn)，興高采烈”。如：

I was on top of the world when Mike proposed to me. 當(dāng)邁克向我求婚時(shí)，我感到幸福極了。

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