獨(dú)立主格結(jié)構(gòu)與分詞短語(yǔ)都可以轉(zhuǎn)換為狀語(yǔ)從句。但是獨(dú)立主格結(jié)構(gòu)轉(zhuǎn)換為狀語(yǔ)從句后，它有自己的邏輯主語(yǔ)，與主句的主語(yǔ)不一致；而分詞短語(yǔ)轉(zhuǎn)換為狀語(yǔ)從句后，從句的主語(yǔ)與主句的主語(yǔ)一致。
1.轉(zhuǎn)換為條件狀語(yǔ)從句
Time permitting, we'd better have a holiday at weekends.
轉(zhuǎn)換為：If time permits, we'd better have a holiday at weekends.
如果時(shí)間允許,我們最好周末去度假。
Listening to English every day, you’ll learn it well step by step.
轉(zhuǎn)換為：If you listen to English every day, you’ll learn it well step by step.
如果你每天都聽英語(yǔ)，你會(huì)慢慢地學(xué)得很好的。
2. 轉(zhuǎn)換為時(shí)間狀語(yǔ)從句
Seeing from the hilltop, we can find the city more beautiful.
轉(zhuǎn)換為：When we see from the hilltop, we can find the city more beautiful.
從山頂上看，我們發(fā)現(xiàn)這個(gè)城市更美了。
Hearing their teacher's voice, the pupils stopped talking at once.
轉(zhuǎn)換為：When they heard their teacher's voice, the pupils stopped talking at once.
一聽到教師的聲音，學(xué)生們立即停止講話。
3.轉(zhuǎn)換成原因狀語(yǔ)從句
The boy leading the way, we had no trouble finding the strange cave.
轉(zhuǎn)換為：Because the bay led us the way, we had no trouble finding the strange cave.
由那個(gè)男孩帶路，我們很容易就找到了那奇怪的洞。
Not knowing her address, I can't write to her.
轉(zhuǎn)換為：Because I don’t know her address, I can't write to her.
由于不知道她的地址，所以我不能給她寫信。

還必須注意，分詞結(jié)構(gòu)的邏輯主語(yǔ)并不總是和主句的主語(yǔ)一致，也可以是主句的其他成分。
Searching for the thief in the city, it had taken the policemen a long time.
在城市里搜查小偷，花費(fèi)了警察很長(zhǎng)一段時(shí)間。（Searching短語(yǔ)的邏輯主語(yǔ)是主句中的policemen）