1. 用作动词时，为及物动词，表示“冒……的危险”“使遭受危险”。如：
They risk their lives in order that we may live more safely. 他们冒了生死危险使我们生活得更安全。
后接动词作宾语时，要用动名词，不能用不定式。如：
They risked losing everything. 他们冒失去一切的危险。
A lot of people run the risk of being killed. 许多人冒着被杀害的危险。
2. 用作名词时，注意以下用法：
(1) 要表示冒危险，通常与动词run, take等搭配。如：
Why run the risk? 为什么要冒这种危险?
There was so much to lose (that) we couldn’t take any risks. 损失这么多，我们不能冒任何风险了。
(2) 表示“……的危险”，其后通常不接不定式，而接 of doing sth。如：
单词：risk的近义词、反义词、形近词辨析
adventure/venture/adventurous/event/prevent/invent/risk/expedition/pedestrian
记忆：
1. venture [ 5ventFE ] vent-ure 词根vent 表示到来；An undertaking that is dangerous, daring, or of uncertain outcome n. 冒险, 投机, 风险 v. 冒险, 冒昧 It’s a venture for the company to invest on such a project.公司投资于这样的工程是在冒险。 格言：Nothing ventured, nothing gained. 没有风险就没有收获。
2. adventure [ Ed5ventFE ] An unusual or exciting experience n. 冒险, 冒险的经历 v. 冒险 Have you read the Adventure of Tom Sawyer?你看过《汤姆索娅历险记》吗？
3. adventurous [Ed5ventFErEs] adj. 喜欢冒险的, 充满危险的 Tom was a clever and adventurous boy. 汤姆是个聪明而喜欢冒险的男孩。
4. event [ i5vent] e-vent 到来的事；n.事件, 事变 The event of kidnapping influenced the relation between the two countries.绑架事件影响到两国的关系。
5. prevent [ pri5vent ] pre-vent在到来之前防止； v.防止, 预防 How can we prevent the flood?我们怎样才能预防洪水？
6. invent [ in5vent] vt.发明, 创造 It’s said Thomas Edison invented hundreds of things.据说爱迪生发明了成百上千种东西。
7. risk [ risk ] vt. 冒. . . 的危险 (risk doing sth. ) n. 冒险, 风险 We cannot risk falling into the icy water. 我们不能冒掉进冰水里的风险。
8. expedition A journey undertaken by a group of people with a definite objective 词根ped表示“足”，ex-表示“外”，expedition, n. 远征, 探险队 They made a scientific expedition to the South Pole. 他们到南极作了一次科学探险。
9. pedestrian [ pe5destriEn] ped-e-strian 行走在大街上的人；n. 行人 The hurrying pedestrians paid no attention to his trouble. 急匆匆的行人没有理会他的麻烦。
另类阅读：
The company ventured to invest in adventure activities such as expedition to a lonely island. Many adventurous people are fond of them these days.
与单词：risk 相关的例句或者名人名言
Cities near the ocean often face the risk of hurricanes.
沿海城市时常面临飓风来袭的危险。
Why would you risk your safety like that?
你为什么要冒着生命危险那样做？
So he can take on more risk in his investment portfolio
因此，他可以在他的投资组合中承担更多的风险。
No data have been published on first trimester teratogenic risk with ondansetron.
没有研究表明在妊娠早期使用恩丹西酮有致畸风险。
I’ve heard eating burnt food like this can increase the risk of cancer.
我听说过吃这类烧烤食品可能增加患癌症的风险。
※He who risks nothing, gains nothing. 不入虎穴，焉得虎子。
※A brave man risks his life, but not his conscience. 勇敢的人可用生命冒险，但不以良心冒险。
