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1. There is one PC for every 32 pupils in America, four times as many as DVD players
2. There is one PC for every 32 pupils in America, four times as many as for school teachers.
3. There is one PC for every 32 pupils in America, four time as many as in China.

請(qǐng)問老師這三句話是正確的嗎？這后邊的比較分別省略了什么呢？

那which指代什么呢？

謝謝管理員老師的回答；

但是有個(gè)問題，這樣解釋which成了定語從句；前邊的先行詞是Pc 而前邊說的是one Pc, which作為關(guān)系代詞數(shù)應(yīng)該和先行詞相同。所以Pcs沒有辦法解釋呀

指代句子的情況非常常見，指代兩句成份例如主語或者賓語+定語也很多。

但是如果兩個(gè)成分一個(gè)是賓語一個(gè)是狀語我一時(shí)還想不起來。

上邊這個(gè)例子He was probably talking to himself,

這里talling to himeself應(yīng)該算是一個(gè)復(fù)合的成份，就像動(dòng)名詞有復(fù)合結(jié)構(gòu)一樣。

上邊這個(gè)賓語和狀語按道理來講不應(yīng)該能夠算是一個(gè)結(jié)構(gòu)

He was probably talking to himself, which he often did now.

這里確實(shí)不是復(fù)合結(jié)構(gòu)，我的只是打個(gè)比方說talling to himself在整個(gè)結(jié)構(gòu)上是一個(gè)成份，動(dòng)名詞可以有自己的狀語，但是句子層面上我們只能說它們整體做表語。

Avoid abrasives on the tiles, which can damage

這里有兩個(gè)問題；

1.Avoid abrasives on the tiles 是什么意思？

它的意思應(yīng)該是Avoid using abrasives on the tiles 和talling to himself一樣它應(yīng)該整體是一個(gè)結(jié)構(gòu)。盡管按道理來講名詞不可以有自己的狀語。但不管怎么樣它不是句子的狀語。

我們把on the tiles 放到句首； on the tiles Avoid abrasives.我認(rèn)為這時(shí)侯意思就變成了在地板上避免使用腐蝕劑-----只要你站在地板上就不要用，你可能只是用腐蝕劑腐蝕別的東西，但在地板上不要這樣去做。

2. 如果這個(gè)句子加上主語會(huì)怎么樣？

I avoid abrasive on the tile ,which ……。我認(rèn)為這時(shí)侯意思就會(huì)變的完全相反----我不在地板上使用腐蝕劑----結(jié)果腐蝕了地板。

按照上邊的理解，我認(rèn)為賓語和狀語單獨(dú)是沒有辦法理解的肯定加上謂語，它和句子的區(qū)別就在于拋開了主語。但這時(shí)會(huì)造成岐義。我們沒有辦法判斷到底是指代句子還是賓語加狀語。

另外我不明白的還有one Pc for every 32 students 這里相當(dāng)于一個(gè)分子分母都有單位的分?jǐn)?shù)。

每32人一臺(tái)電腦，這比老師多多了，或者這比CD多多了----我認(rèn)為比較的對(duì)象不對(duì)等。

不知道我的理解哪里出了錯(cuò)，請(qǐng)管理員老師指正我

avoid using abrasives on the tiles 的表述可能也有問題

因?yàn)槲也恢�道on the tiles 倒底算是補(bǔ)語還是怎么回事，我的意思是說on the tiles肯定是和abrasives 在句子中整體上是一個(gè)成份。on the tiles不是句子的狀語

繼續(xù)頂

There is one PC for every 32 pupils in America, four times as many as DVD players.

To begin with the first,I can tell what is left out in the sentence is ‘for every 32 pupils in America’ that follows the ‘DVD players’.　　

How many DVD  players are there for every 32 pupils in America?　　

Though I am not good at maths,the answer is easy for me to work out.That is, there is 1/4 DVD player for every 32 pupils in America. So the completed sentence is: there is one PC for every 32 pupils in America,four times as many as DVD plays for every 32 pupils in America.　　

And I think the others can be solved this way.　　

qinjian沒有看我們的討論

我上邊可能當(dāng)成狀語也不恰當(dāng)，不知道這算不算個(gè)分?jǐn)?shù)。如果是狀語肯定不能這樣比，如果是個(gè)分?jǐn)?shù)我們按照管理員老師的思路。

One PC for every 2pupils is four times as many as DVD plyers (for every 32 pupils in America) 這里dvd plyer 連一個(gè)都不能怎么會(huì)是復(fù)數(shù)？

總之我認(rèn)為這不是一個(gè)正確的句子，我也沒有見過這樣的比較。順便說一句，這個(gè)句子并不是來自什么權(quán)威工具書或者書刊，只是一些網(wǎng)友跟據(jù)考試題自己推演的。