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介詞 from 后的 wh-從句簡(jiǎn)析

wh-從句是名詞性從句的重要組成部分，其從句類型判定有時(shí)會(huì)給我們?cè)斐梢恍├�擾，因?yàn)檫@些從句有時(shí)帶有疑問(wèn)含義，有時(shí)不帶有疑問(wèn)含義。現(xiàn)僅就介詞from 后的wh-從句結(jié)合現(xiàn)行高中教材及高考真題進(jìn)行一下簡(jiǎn)單分析和歸類。

嚴(yán)格說(shuō)來(lái)，帶有疑問(wèn)含義的wh-從句才為名詞性從句；而不帶有疑問(wèn)含義的wh-從句則為名詞性關(guān)系從句或名詞性定語(yǔ)從句，引導(dǎo)這些名詞性定語(yǔ)從句的詞暗含一個(gè)定從的先行詞（比如，where= the place where; when= the time when; why=the reason why）。這些詞常被稱為縮合型關(guān)系代詞及縮合型關(guān)系副詞，它們主要有what, where, when, why, whatever, whoever, whichever等。

介詞from后面也可以跟一些wh-從句，因?yàn)?/SPAN>from一般總是表達(dá)“起始點(diǎn)，來(lái)源，原因，事物差異”等含義，所以其后的從句一般先天具有“確定性”特征，而不具備“疑問(wèn)含義”。換句話說(shuō)，通常位于其后面的wh-從句一般總是名詞性定語(yǔ)從句。跟在其后面的wh-詞最常見(jiàn)的有三個(gè)：what，where及when。

一、from what形式。這種從句多表達(dá)“推理、判斷或陳述依據(jù)”，有時(shí)from前會(huì)有一個(gè)與其搭用的某些特殊詞，表達(dá)其他含義。這里的what =all/ everything/ the things...that。

1. I inferred from what she said that you have not been well .我從她的話語(yǔ)里推斷你身體一直不太好。（表推斷依據(jù)）——《柯林斯高階英漢雙解學(xué)習(xí)詞典》

2. From what I have been told, you are not getting on well with your work. 據(jù)我所知，你的工作不順手。（表推斷依據(jù)）——《漢英大詞典》

3. From what I know of him he doesn’t play silly games. 憑我對(duì)他的了解，他不會(huì)耍滑頭的。（表推斷依據(jù)）《柯林斯高階英漢雙解學(xué)習(xí)詞典》

4. From what I could gather, he was trying to raise money by organising festivals. 據(jù)我所知，他想通過(guò)舉辦節(jié)慶活動(dòng)來(lái)籌款。（表陳述依據(jù)）——《柯林斯高階英漢雙解學(xué)習(xí)詞典》

5. Judging from what they have done these years, they are indeed “ friends ” with an honey tongue and a heart of gall. 從他們這些年的所作所為看來(lái)，他們的確是口蜜腹劍的“朋友”。（前帶judging, 依然表推斷依據(jù)）——《漢英大詞典》

6. I feel this is getting to be a distraction from what I really want to do. 我覺(jué)得這開(kāi)始讓我無(wú)法集中精神做我真正想做的事情了。（from與a distraction連用表distraction的涉及內(nèi)容）——《柯林斯高階英漢雙解學(xué)習(xí)詞典》

7. Our village is very different from what it was before. 我們村跟從前大不一樣了。（from與different連用表差異）——《漢英大詞典》

8. By feeling we tell what is hard from what is soft. 憑感觸分辨軟與硬。（from與tell連用表辨識(shí)）——《漢英大詞典》

9. Many hair problems result from what you eat. 很多頭發(fā)問(wèn)題都是由飲食引起的。（from與result連用表原因）——《柯林斯高階英漢雙解學(xué)習(xí)詞典》

10. We found the village very much changed from what it used to be. 我們發(fā)現(xiàn)這個(gè)村莊的面貌和過(guò)去大不相同。（from與change連用表對(duì)比）——《英語(yǔ)介詞習(xí)語(yǔ)詞典》

二、from where形式。這里的where= the place where。

1. It was my sister who first had the idea to cycle along the entire Mekong River from where it begins to where it ends. 首先想到要沿湄公河從源頭到終點(diǎn)騎行的人是我姐姐。——（RJ B1U3）

2. It can be difficult if the only disabled toilet is in the basement a long way from where the film is showing.如果唯一的殘疾人廁所位于地下室，離電影放映的地方很遠(yuǎn)，那就很困難了。——（RJ B7U1）

3. I count  twelve shades of green from where I stand. 放眼望去，可以分辨出12種深淺不一的綠色色調(diào)。（2019全國(guó)卷Ⅰ完形）

4. One of her cousins was shot dead only a few streets away from where she lived. 她的一個(gè)表親在離她家只有幾條街的地方被槍殺。——（2016江蘇卷Ⅰ閱讀D）

5. The car stopped short only a few inches from where I stand.那汽車終于停了下來(lái)，離我站的地方只有幾英寸遠(yuǎn)。——《英語(yǔ)常見(jiàn)問(wèn)題解答大辭典》

6. Pick yourself up from where you fell--correct your mistake where you made it. 在哪兒跌倒就從哪兒爬起來(lái)。——《漢英大詞典》

7. She swept up a hat from where it had fallen on the ground, and plunked it on her hair. 她拾起掉在地上的一頂帽子，隨意地往頭上一扣。——《柯林斯高階英漢雙解學(xué)習(xí)詞典》

三、from when形式。這里的when= the time when。

1.Many people still remember the magic of Father Christmas from when they were children.許多人仍然記得圣誕老人的魔力，從他們還是孩子的時(shí)候。 （WY B2U2）

2.To figure out how much power these devices are using，Callie Babbitt and her colleagues at the Rochester Institute of Technology in New York tracked the environmental costs for each product throughout its life—from when its minerals are mined to when we stop using the device.為了計(jì)算出這些設(shè)備使用了多少電力，紐約羅切斯特理工學(xué)院的Callie Babbitt和她的同事們追蹤了每件產(chǎn)品其生命周期的環(huán)境成本——從它的礦物被開(kāi)采到我們停止使用它。——（2018全國(guó)卷Ⅰ閱讀D）

3. A good friend of mine from when I was born showed up at my home right before I left for Beijing. 一個(gè)發(fā)小就在我動(dòng)身去北京之前意外地來(lái)到我家。——（2009安徽卷--27）