连词
and/as well as 并列(二合一) 动作先后
or/otherwise 并列(二选一) 否则,可能 与虚拟相关
also/moreover 递进
but/yet/however/in fact/actually 转折(但是) 事实前后相反、递进
though/although 转折(虽然) 事实前后相反
in spite of/despite/regardless of 转折(尽管) 强调主句“还是……….”
instead/instead of 转折(相反) 肯定一方,否定一方
while 对比(而) 前后轻微转折
for/in that/since 因果(因为) 强调原因
because/because of
so/there fore/thus 因果(所以) 强调结果
so that/so as to/In order to 因果(目的)~~ 以便……, 强调目的
if/provided that 条件(如果) 主将从现、虚拟语气
as if/as though 条件(好像) 虚拟语气
even if/eventhough 条件(即使) 强调主句绝对性
if only 条件(语气) 要是…就好了, 虚拟
once 条件(一旦) 包含 强调语气的“如果”
in case 条件(万一) 强调不确定的可能性
unless 条件(除非) 事实与条件前后相反
now that 条件(既然) 用于句首,强调现状
until/till 时间(直到) 强调主句持续性
when 时间(当…时) 具体时间、抽象条件
ever since 时间(自…后) (完成时)
as 时间因果转折 伴随状况、倒装转折
As long as/so long as 条件(只要) 等同于if
as far as 条件(程度) 就......而言
as soon as 时间(一...就) 强调时间间隔短
As often as 频率(多次) 尽可能多次