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as / though引導(dǎo)讓步狀語從句時要用倒裝嗎

as / though引導(dǎo)讓步狀語從句時，一般須用部分倒裝。如：

Old as / though he is, he works like a young man. 盡管他很老了，但他工作起來卻像個年輕人。

Hard as / though he was working, he didn’t pass the exam. 雖然他一直在努力學習，但他還是沒有通過那次考試。

Try again as / though he will, he can’t succeed. 盡管他還會再試一試，但是它不會成功。

as / though引起的倒裝分三種情況：表語、動詞原形及狀語的倒裝。

1. 表語的倒裝

一般直接將表語提前到句首，若表語是帶不定冠詞a / an的單數(shù)可數(shù)名詞，倒裝后，不定冠詞a / an須被省略。如：

Fine as / though he looks, he is ill with some serious diseases.

Child as / though he is, he knows much about the society.

2. 原形動詞的倒裝

A. 動詞前面帶有情態(tài)動詞may, might, will, would, can, could等時，只將行為動詞提到句首，而這些情態(tài)動詞保留在原處。

B. 若動詞前面沒有情態(tài)動詞時，應(yīng)在動詞原來的位置加上助動詞do的適當形式。

C. 用于這一句型的動詞一般是不及物動詞，而不能是系動詞或及物動詞。如：

Swim as / though he can, he can’t swim so far. 盡管他會游泳，但是他游不得那么遠。

Run as / though he did, he didn’t run fast enough to catch the bus. 雖然他跑，但是他跑得不夠快而沒有趕上汽車。

3. 狀語倒裝

In the classroom as / though he stays, he doesn’t read his texts. 盡管他呆在教室里，但他不讀書。

Carefully as / though he worked, he made some mistakes. 盡管他工作很細心，但還是除了一些差錯。