對于準備考托福的同學們來說，不知道準備得怎么樣呢？今天就和出國留學網的小編一起來看看托福寫作有哪些表原因的詞匯？
consequently
Consequently， it is more difficult for gases to “evaporate” from them. [TPO 16-3-5]
therefore
Many scientists have therefore concluded that a sixth great mass extinction is currently in progress. [TPO 15-2-2]
thereby
He thereby transformed an inefficient pump of limited use into a steam engine of a thousand uses. [6-1-2]
so that
In the 1760s， James Watt perfected a separate condenser for the steam， so that the cylinder did not have to be cooled at every stroke； then he devised a way to make the piston turn a wheel and thus convert reciprocating （back and forth） motion into rotary motion. [TPO 6-1-2]
so as to
Another generation passed before inventors succeeded in combining these ingredients， by putting the engine on wheels and the wheels on the rails， so as to provide a machine to take the place of the horse. [6-1-4]