give somebody the boot（译文~1）

A:Foolish Kate!
B:Anything wrong?
A:Yes,she quarreled with her boss and she was given the boot.She should have known better than to quarrel with her superior.
A:凯特真蠢！
B:她出问题了吗？
A:是的，她和上司吵架了，因此被炒了鱿鱼。拓本该明智一点儿，不能和上司吵架。

cap n. 帽子
put on one's thinking cap （译文~2）

A:Is the reprot important?
B:Yes,important enough to shape your future.
A:So I'll have to put on my thinking cap before writing anything down.
A:这个报告重要吗？
B:是的，重要到可以改变你的未来。
A:看来在动笔之前我必须得认真思考了。

cloth n. 布
cut one's coat according to one's cloth (译文~3)

A:Can we buy a house of our own,dear?
B:Not now.My salary isn't large at the moment and we can't afford to get a loan from the bank.We must cut our coat according to our cloth.
A:亲爱的，我们能买套房子吗？
B:现在不行。我现在的工资不高，而且我们也贷不起银行的款。所以我们必须量力而为。

参考答案:

1.解雇某人
2.动脑筋想，认真思考
3.量力而为，随机应变