1.這是一個(gè)when引導(dǎo)的時(shí)間狀語(yǔ)從句,在時(shí)間、條件狀語(yǔ)從句中,當(dāng)主句和從句的主語(yǔ)相同或者指代同一事物,且從句中有be動(dòng)詞時(shí),可以省略從句的主語(yǔ)和be動(dòng)詞.
所以When trying to put out the fire,two firemen lost their lives.成立
2.When they go there,they will found a plane.
這個(gè)句子你給出來(lái)的時(shí)候有誤,will是將來(lái)時(shí),found如果作“發(fā)現(xiàn)”講的話,就是find的過(guò)去式,我猜測(cè)你想表達(dá)的是：When they go there,they will find a plane.當(dāng)他們?nèi)ツ莾簳r(shí),他們將會(huì)發(fā)現(xiàn)一架飛機(jī)
這里的時(shí)間狀語(yǔ)從句里可以省略they,轉(zhuǎn)化成when going there,they will find a plane.
當(dāng)沒(méi)有be動(dòng)詞時(shí)可轉(zhuǎn)化為動(dòng)名詞或者過(guò)去分詞的復(fù)合結(jié)構(gòu),但是一定要保證前后主語(yǔ)一致,不能有邏輯錯(cuò)誤.
當(dāng)從句謂語(yǔ)主動(dòng)時(shí)轉(zhuǎn)化為動(dòng)名詞結(jié)構(gòu),主句謂語(yǔ)被動(dòng)時(shí)轉(zhuǎn)化為過(guò)去分詞結(jié)構(gòu).
3.第一個(gè)句子中代詞they用在了所指代的two firemen前,準(zhǔn)確的地講這不是習(xí)慣不習(xí)慣的問(wèn)題
When引導(dǎo)的是一個(gè)時(shí)間狀語(yǔ)從句,只是從句
我們可以這么理解,當(dāng)你和別人說(shuō)two firemen lost their lives,這是這是主句,是說(shuō)話人真正要表達(dá)的意思,兩個(gè)消防員失去了生命
那么聽(tīng)話人會(huì)緊跟著問(wèn)一句“when?"什么時(shí)候?
那么說(shuō)話在補(bǔ)充：When they were trying to put out the fire
我是用這樣的方法講解給我的學(xué)生聽(tīng)的,