New words：

risk [risk]
n.风险；危险；危险人物；会带来风险的事物
v.使…冒风险（或面临危险）；冒…的风险（或危险）；冒险做

Sample Sentences：

He risked his life to save her.
He saved my life at the risk of losing his own.
It was a difficult decision but we decided to risk it .
The disease is spreading, and all children under 5 are at risk.

New words：

be terrified at/with 被……吓一跳
be terrified of 对……感到害怕

Sample Sentences：

I'm terrified of flying.
I used to be terrified of the dark.
The small girl was terrified at that big black cat.

New words：

terrify ['terəfai] v. 使恐惧；使十分害怕；使惊吓
terrifying ['terə.faɪɪŋ] adj. 可怕的；令人害怕的

Sample Sentences：

Flying terrifies her.
It was a terrifying experience.
The animals were terrified by the storm.
There was no doubt they must have been terrified.

New words：

moldy ['məuldi] adj. 发霉的；破旧的；乏味的；陈腐的

Sample Sentences：

Strawberries go moldy very quickly.
We had a moldy holiday - it rained every day.
I'm sure it's still good, if we just cut off the moldy parts.

New words：

rid [rid] v. 摆脱；消除；去掉
get rid of 摆脱
be rid of 摆脱

Sample Sentences：

The man rid himself of debt.
He can't get rid of the cold.
I'm glad to be rid of those bad habits.
Let's get rid of this moldy old furniture.
The new vaccine may rid the world of one of its most terrifying diseases.

moldy ['məuldi] adj. 发霉的
terrifying ['terə.faɪɪŋ] adj. 可怕的；令人害怕的