英語(yǔ)四級(jí)閱讀關(guān)鍵句：242. One way over-worked, under-reso

242. One way over-worked, under-resourced parents show commitment to their children is to leap to their defense.

譯文

勞累過(guò)度、資源不足的父母對(duì)孩子盡義務(wù)的一種方式就是沖上前保護(hù)他們。

點(diǎn)睛

本句的主干是one way is to leap to defense。over-worked, under-resourced parents show commitment to their children為way的定語(yǔ)從句，其中兩個(gè)由動(dòng)詞過(guò)去分詞構(gòu)成的合成詞均為parents的定語(yǔ)。

show commitment to的意思是“對(duì)……兌現(xiàn)承諾，向……體現(xiàn)忠誠(chéng)”。如：

All couples should show commitment to marriage. 所有夫妻都應(yīng)該對(duì)婚姻表示忠誠(chéng)。

leap to的意思是“立刻（做某事）”。如：

He leaped to the telephone as soon as he came into the room. 他一進(jìn)入房間就沖過(guò)去抓起了電話。

考點(diǎn)歸納

動(dòng)詞leap的常見短語(yǔ)如下：

leap sth. over sth.意為“使……跳過(guò)（障礙）”。如：

He leaped the horse over a fence. 他策馬越過(guò)了籬笆。

leap to a conclusion意為“（未經(jīng)全面考慮）匆匆作出結(jié)論”，也可用作jump to a conclusion。如：

You should be objective; don't leap/jump to a conclusion. 你應(yīng)該要客觀，不要忙著下結(jié)論。

leap at sth.意為“迫不及待地接受某事物”。如：

She leaped at the invitation to the party. 她立刻接受了參加聚會(huì)的邀請(qǐng)。