巧用連接詞

有的學(xué)生在作文中使用過多簡單句，成了簡單句堆砌；有的寫復(fù)雜句時，動輒用so， and，then，but，or，however，yet等非但達不到豐富表達方式的目的，反而使句子結(jié)構(gòu)松散、呆板。為了避免這種現(xiàn)象，可以通過使用連接詞，尤其是一些表示從屬關(guān)系的連接詞，如 who，which，that，because，since，although，after，as，before，when，whenever，if，unless，as if等，不僅能夠豐富句型，而且還能夠把思想表達得更清楚，意義更連貫。例如： Natural resources are very limited. They will be exhausted in the near future. It is not true. But it becomes a major concern around the world. This is a widely accepted fact.

這段文字用簡單句表達，它們之間內(nèi)在的邏輯關(guān)系含糊不清，意思支離破碎。如果使用連接詞，將單句與其前后合并，形成主次關(guān)系，就把一個比較復(fù)雜的內(nèi)容和關(guān)系表達得層次清楚、結(jié)構(gòu)嚴謹。例如： It is a widely accepted fact that there is a major concern around the world for the exhaustion of limited natural resources in the near future，though it is unlikely to be true. 再如：

The Mississippi River is one of the longest rivers in the world，and in spring time it often overflows its banks，and the lives of many people are endangered.

此句用and把三個分句一貫到底，既乏味又可笑。如果使用了關(guān)系代詞which，語義就會更連貫，語言也會更流暢：
The Mississippi River，which is one of the longest rivers in the world，often overflows its banks in the spring time，endangering the lives of many people.