New words：

hurricane [ˈhʌrɪˌkeɪn ]n.（尤指西大西洋的）飓风

Sample Sentences：

The hurricane destroyed the whole village.
We stored water and food for the hurricane.
After the hurricane, volunteers came to help.

New words：

urgent [ˈɜrdʒənt] adj. 紧急的；紧迫的；迫切的；
urgently ['ɜːdʒəntli] adv. 紧急地；急迫地
urgency [ˈɜrdʒənsi] n. 紧急；紧迫性

Sample Sentences：

Can I see you for a moment?’ ‘Is it urgent?’
The money could be better spent on more urgent cases.

I need to speak to her urgently.
He urgently begged a favour of me.

The storm urgency to our plans to leave.
There’s no urgency — we can take our time.

New words：

rooster [ˈrustər] n. 公鸡；雄鸡

Sample Sentences：

The rooster's crow woke me.
I was born in the year of the Rooster.
Roosters usually crow in the early morning.

New words：

thunder [ˈθʌndər] n. 雷；雷声
thunderstorm [ˈθʌndərˌstɔrm] n. 雷暴；雷雨；雷雨交加

Sample Sentences：

Outside, thunder boomed and crashed.
Turn off the TV set in case of thunderstorm.
The day was heavy and still. It would probably thunder later.

New words：

clap [klæp]
v.拍手；鼓掌
n.鼓掌；拍手；掌声；拍手声；霹雳声；砰然巨响

Sample Sentences：

We clapped when the singer finished.
He clapped me on the back and laughed.
The teacher clapped the ruler on the desk to quiet us.

A loud clap of thunder woke me up.
A single clap started, then everyone joined in.

thunder [ˈθʌndər] n. 雷；雷声