risk doing...冒险做......

risk one's health/life以健康做赌注/冒着生命危险

at risk＝in danger处于危险中

at the risk of doing...可能导致不快等，冒做......的危险

at all risks无论如何

run/take a risk/risks冒险

run/take the risk of doing...冒做......的危险 (2)They knew they risked being arrested.

他们知道自己冒着被捕的危险。

(3)If you don't obey me，you should be at your own risk.

你如果不服从我的话，你应该自担风险。

(4)We don't want to run the risk of losing their business.

我们不想冒险失去他们的生意。

[即时跟踪]

(1)汤姆冒着失去工作的危险去帮助你摆脱困境。

Tom risked losing his job to help you out of the trouble.

(2)也许我难免显得无知，可互联网到底是怎样运作的呢？

At the risk of showing my ignorance，how exactly does the Internet work?

(3)You are willing to risk lose some data in the log.(单句改错)lose→losing

3．various adj.不同的，各种各样的

(1)(原句)You can find all these in the various extreme sports...

你可以在各种各样的极限运动中找到所有这些......

[归纳拓展]

(1)variety n．种类，多样性

a variety of＝varieties of种种的；各种各样的

(2)vary v．不同；改变

vary from...to...由......到......不等

vary with随......变化

vary in在......方面变化 (2)There are a variety of books for us to choose from，like history books，science books，literary