1.scheme的基本意思是“计划”“阴谋”“诡计”,多用于贬义,指小心地设计一种秘密、狡诈的手段以谋取私利。
2.scheme用作及物动词时,接名词、代词或动词不定式作宾语,可用于被动结构; 用作不及物动词时,与against连用,表示“勾心斗角”; 与for连用表示“计划”“图谋”; 与out连用,表示“设计”。

scheme against(v.+prep.)
勾心斗角 plan sth in a devious way
▲scheme against sb
It is clear that they are scheming against each other.很清楚,他们彼此勾心斗角。

scheme for(v.+prep.)
以欺骗的手段谋取 make a plan, often deceitful, in order to obtain sth
▲scheme for sth
Many politicians are less concerned with working for the good of the citizens than with scheming for personal right.许多政客关心的主要是为自己争权夺利,很少想到为公众谋福利。
Rebels are scheming for the overthrow of the leadership.叛乱者正策划推翻领导层。
Companies can be prevented by law from scheming for higher profits by agreeing between them on a fixed price.法律可以以限定物价的办法阻止各公司牟取暴利。

用作及物动词
▲S+～+n./pron.
The enemies are scheming her downfall.敌人正在策划使她垮台。
◇ 用于be ～ed结构
The new method of the traffic control is well schemed.新的交通管制设计得很好。
▲S+～+to-v
She schemed to keep her rivals in ignorance of her plans.她图谋不让对手知道她的计划。
They are scheming to get her elected as leader.他们正策划让她当选领导。
They were scheming to rob the bank.他们在密谋抢劫银行。

［派生词］ schemer n.计划者；阴谋家
［同义词］ n.  design, plan, plot

She has a lot of schemes.她有很多诡计。
When you began to work, you might work out a practical scheme.当你开始工作时,你可以先制定出一个可行的计划。
He proposed a new health insurance scheme.他提出了一个健康保险新方案。

scheme, artifice, device, trick
参见trick条。
scheme, design, plan, project
参见plan条。