时间
In modern society
in contemporary society
当代社会
in this day and age
（这是最牛的说法）This day and age we're living in这个我们所生活的时日与年代
in theoddays
traditionally,histrically
frequently
经常
occasionally
偶尔
not often
rarely
很少见
hardly
几乎不
程度
to a great extent
在很大程度上
mainly
primarily
主要
chiefly
greatly
extremely
非常地extremelyimportant extremely popular
传统上
nowadays
currently
如今
gradually
step by step
逐渐…….
very soon
immediately
立即
频率
under certain circumstances
在一些情况下
In most cases
在多数情况下
usually
generally
通常…….
often
just
merely
仅仅
simply
仅仅
completely
entirely
完全
祈使
admittedly
诚然…….
indeed
的确Admittedly, ……. Andindeed, …….
even so
虽然如此
although
即使
even if
即使。。。
aslong as….
只要。。。
解释，进一步说明
such as
namely
即。。。。
accordingly
相应的。。。（句首）
similarly/likewise
类似的（句首） 类比
假设
if
如果，，，，可以使不希望看到的
provided that
如果，，，，结果是希望看到的
on condition that
We will let you operate this new machineon condition thatyou follow the operating rules
举例来说 （句首）
in terms of
就什么来说。。。
furthermore
另外。。。（句首）
specifically
具体来说。。。（句首）
转折
however
otherwise
否则...rather来自than...而不是。。。
对比，类比
by contrast
句间对比
while/whereas
句内对比
副词
低级
高级
用法与例句
因果
原因
as/since
因为
due to/owing to
由于(后面只能跟名词）
因此
结果
therefore
因此 （句首）
hence
as a result
作为结果（句首）
consequently
so that
因此，只放在（句中）
目的
thereby
以此达到。。。。的目的，后面加动名词The idea was to boost spending, thereby creating demand for products, while reducing job losses.
actually
practically
实际上
virtually
实际上
as a matter of fact
事实上
technically
严格来说（学术写作常用）
obviously
markedly
显然……
apparently
显然……
evidently
显然……
for example
asa typicalexampleof….