Ⅱ.重點(diǎn)句型詳解
1．So many thousands of terrified people died every_time there was an outbreak. 因此每次暴發(fā)(霍亂)時(shí)，就有大批驚恐的人死去。

這是由名詞詞組 every time 充當(dāng)連詞的時(shí)間狀語從句，意為“每當(dāng)……”，相當(dāng)于 when。某些表達(dá)時(shí)間的名詞詞組可直接充當(dāng)連詞，即“名詞連詞化現(xiàn)象”。常見的有：

(1)不定代詞＋time　如：any time, each time...

(2)序數(shù)詞＋time　如：the first/last time...

(3)the＋瞬時(shí)名詞　如：the minute/moment/instant

(4)the＋時(shí)間名詞　如：the day/night/month/time...

①He brings her flowers every time he goes to see her.他每次去看她都給她帶花。

②The first time he did the experiment, he succeeded.他第一次做實(shí)驗(yàn)就成功了。

③I‘ll give him your message the minute he arrives.等他一到，我就把你的口信給他。

④He bought a computer the day he got his salary.他發(fā)工資那天買了一臺(tái)電腦。

[即境活用1]　The boys ran off______ they saw the owner of the orchard (果園)．

A．a(chǎn)t times　　 B．the hour? C．the moment D．a(chǎn)t once

答案：C

解析：句中 the moment 引導(dǎo)時(shí)間狀語從句，相當(dāng)于 as soon as。

2．Only_if you put the sun there did the movements of the other planets in the sky make sense. 只有當(dāng)你把太陽放在中心位置上，天空中其他行星的運(yùn)動(dòng)才能說得清楚。

only 修飾副詞、介詞短語或狀語從句，放在句首時(shí)，句子要部分倒裝，即把助動(dòng)詞、情態(tài)動(dòng)詞或系動(dòng)詞 be放在主語之前。

①Only then did I realize the mistakes I had made.只有在那時(shí)我才意識(shí)到我所犯的錯(cuò)誤。

②Only in this way can you make progress.只有以這種方式你才能取得進(jìn)步。

③Only when the war was over in 1949 was he able to get back home.只有在1949年戰(zhàn)爭(zhēng)結(jié)束時(shí)他才能回家。

拓展：if only要是……該多好，但愿。if only從句可單獨(dú)使用，這時(shí)要用虛擬語氣：表示與過去相反的愿望用 had done；與現(xiàn)在相反的愿望用 did/were；表示與將來相反的愿望用 “would/could/might＋動(dòng)詞原形”。

①If only I had gone to Beijing.我要是去了北京就好了。

②If only he could come tomorrow.他要是明天能來就好了。

[即境活用2]　______both sides accept the agreement will a lasting peace be established in this region.

A．Only if B．Unless? C．If only D．As long as

答案：A

解析：主句中用了“will＋主語＋be”倒裝結(jié)構(gòu)，故選 Only if。