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how能引導方式狀語從句嗎

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how能引導方式狀語從句嗎
  how不能引導方式狀語從句

how

adv.怎樣; 健康狀況如何; 到何種地步; 以任何方式

n.方法; 方式;

how不能作爲方式狀語從句的引導詞.

  方式狀語從句

方式狀語從句通常由as, (just) as…so…, as if, as though, by,with引導。

1)由as, (just) as…so…引導

1) as, (just) as…so…引導的方式狀語從句通常位於主句後,但在(just) as…so…結構中位於句首,這時as從句帶有比喻的含義,意思是"正如…","就像",多用於正式文體,例如:

Always do to the others as you would be done by.

你希望人家怎樣待你,你就要怎樣待人。

As water is to fish, so air is to man.

我們離不開空氣,猶如魚兒離不開水。

You must try to hold the tool as I do.

你必須像我這樣拿工具。

Leave the things as they are.

別動這些東西。

We must do as the Party tells us (to do).

我們必須按照黨的指示辦事。.

Just as we sweep our rooms, so we should sweep backward ideas from our minds.

正如打掃房屋一樣,我們也要掃除我們頭腦中落後的東西。

2)由as if, as though引導

as if 和as though 引導的從句中的時態取決於說話者對所談內容的態度。若說話者認爲其看法是真的或可能會成爲事實,從句謂語就按常規變化。

例如:

He looks as if he is angry.

他看上去好像生氣了。

It looked as if there would be an exciting race.

看來要有一場激動人心的比賽。

When the soaceship leaves the earth at tremendous speed,the astronauts feel as if they are being crushed against the spaceship floor.

當宇宙飛船以巨大的速度離開地球時,宇航員們覺得自己好像正在被壓向宇宙飛船的底壁上去。

如果從句的內容是不真實的,是與事實相反的,從句的謂語時態要用虛擬語氣。主句謂語用一般現在時態,對從句的謂語形式沒有影響。

兩者的意義和用法相同,引出的狀語從句謂語多用虛擬語氣,表示與事實相反,有時也用陳述語氣,表示所說情況是事實或實現的可能性較大。漢譯常作"彷彿……似的","好像……似的"。這兩個連詞經常用在be,act,appear,behave,fell,look,seem,smell,sound,taste及其他描寫行爲舉止的動詞之後,引導一個方式從句。例如:

They completely ignore these facts as if (as though) they never existed.

他們完全忽略了這些事實,就彷彿它不存在似的。(與事實相反,謂語用虛擬語氣。)

He looks as if (as though) he had been hit by lightning.

他那樣子就像被雷擊了似的。(與事實相反,謂語用虛擬語氣。)

It looks as if the weather may pick up very soon.

看來天氣很快就會好起來。(實現的可能性較大,謂語用陳述語氣。)

說明:as if / as though也可以引導一個分詞短語、不定式短語、形容詞或介詞短語,例如:

He stared at me as if seeing me for the first time.

他目不轉睛地看着我,就像第一次看見我似的。

  How 可引導的從句:

1.主語從句--How he come here is a mystery.

2.賓語從句--I don't know how we can get there so soon.

3.表語從句--It was how we learned so much in so short a period.

4.狀語從句--No matter how he begged , the boss didn't care.