Ⅱ.重點(diǎn)句型詳解

1．...only then did we decide to answer violence with violence.……只有到那時(shí)我們才決定用暴力反抗暴力。

only 修飾的時(shí)間、條件和方式狀語(yǔ)，為了強(qiáng)調(diào)而提到句首時(shí)，句子要用部分倒裝形式，把原句中的情態(tài)動(dòng)詞、系動(dòng)詞或助動(dòng)詞提到主語(yǔ)前面。only 如修飾從句而提到句首，主句要部分倒裝。

①Only at that time did he realize that he had made a mistake.直到那時(shí)他才意識(shí)到自己犯的錯(cuò)誤。

②Only by practising a few hours every day will you be able to master English.只有通過(guò)每天練習(xí)幾個(gè)小時(shí)你才能掌握英語(yǔ)。

③Only with all your time and energy can you do the job well.只有用上你全部的時(shí)間和精力你才能把這項(xiàng)工作做好。

④Only when I came back was I informed of the news.直到我回來(lái)，我才被通知這個(gè)消息。

⑤Only if I get a job will I have enough money to go to college.我只有找到了工作才有足夠的錢(qián)上大學(xué)。

提示：(1)在部分倒裝句中，如果謂語(yǔ)部分無(wú)助動(dòng)詞，則須找助動(dòng)詞來(lái)“幫助”它構(gòu)成倒裝句。如：

×Only after the war learned he the sad news.

√O(píng)nly after the war did he learn the sad news.

(2)only 修飾狀語(yǔ)從句時(shí)，從句不可倒裝。如：

×Only when did he return did we find out the truth.

√O(píng)nly when he returned did we find out the truth.

(3)only修飾主語(yǔ)時(shí)，句子不可倒裝。如：

×Only can he answer the question.

√O(píng)nly he can answer the question.

[即境活用1](2008?江蘇)______ you eat the correct food ______ be able to keep fit and stay healthy.

A．Only if; will you　B．Only if; you will?? C．Unless; will you D．Unless; you will

解析：“only＋if從句”放于句首，主句用部分倒裝。

答案：A

2．I felt bad the first time I talked to a group. 第一次給旅行團(tuán)作講解時(shí)，我的感覺(jué)很不好。

the first time 相當(dāng)于連詞，引導(dǎo)一個(gè)狀語(yǔ)從句，意為“第一次”。這類(lèi)特殊短語(yǔ)還有：

(1)each time, every time, next time, last time, any time 等也可以做連詞用，表示“無(wú)論何時(shí)”“每當(dāng)”“每次”等，引導(dǎo)一個(gè)時(shí)間狀語(yǔ)從句。

Every time we come to Beijing, we go to visit the Forbidden City. 每次我們?nèi)ケ本?，我們都去參觀故宮。

I didn' t have any penny last time I saw you.上次我看見(jiàn)你時(shí)，我身無(wú)分文。

(2)immediately, directly, instantly 可活用為連詞，引導(dǎo)時(shí)間狀語(yǔ)從句，表示“一……就……”，相當(dāng)于 as soon as。

The young man rushed out of the hall immediately he heard the sound.那個(gè)年輕人一聽(tīng)到聲響就沖出了大廳。

(3)the moment, the minute, the second, the instant 等名詞短語(yǔ)也可用做連詞，也相當(dāng)于 as soon as，表示“一……就……”。

The moment Professor Wang appeared on the platform, the audience all stood up and clapped warmly.王教授一出現(xiàn)在講臺(tái)上，聽(tīng)眾就站起來(lái)熱烈鼓掌。

(4)the morning/afternoon/evening, the night, the day, the week, the year, the spring/summer/autumn/winter 等一些表示時(shí)間段的名詞短語(yǔ)也可以引導(dǎo)時(shí)間狀語(yǔ)從句。

The morning Mr Smith was walking along the lake, he met an old friend.那天早晨史密斯先生在湖邊散步時(shí)遇到了一位老朋友。

[即境活用2]　______I toured Zhangjiajie, I was deeply impressed with its beautiful scenery.

A．For the first time B．At first? C．It was the first time D．The first time

解析：the first time 用做連詞，引導(dǎo)時(shí)間狀語(yǔ)從句。

答案：D