New words：

pitch black [pitʃ] adj. 漆黑的；漆黑一片
pitch dark adj. 漆黑的；漆黑一片

Sample Sentences：

Outside it was pitch dark and it was raining cats and dogs.
To them Chairman Mao shone as a star in the pitch-black night.
Standing in the pitch black, we had no idea what our surroundings looked like.

surrounding [sə'raundiŋ] n. 环境；周围的事物

New words：

elf [elf] n.（故事中的）精灵
elves [elvz] elf复数

Sample Sentences：

I'm a human, but I was raised by elves.
My little daughter is as lovely as an elf.
An elf is sitting between the green branches and leaves lost in thought.

New words：

concert ['kɔnsət] n.音乐会；演奏会

Sample Sentences：

The concert will raise money for local hospitals.
The first arrivals at the concert got the best seats.
The children are too young to sit through a concert.

New words：

loads of [ləud] adj. 大量；许多

Sample Sentences：

I've got loads of things to do today.
She missed loads of lessons because she was ill.
Loads of people were taking pictures and some were definitely Chinese.

New Words：

stretch [stretʃ]
v.伸展；延伸；伸出；舒展
n.伸展；弹性；舒展

Sample Sentences：

He rose and stretched himself.
The desert stretches for thousands of miles.
She stretched across the table for the apple.
I got out of the bed and had a good stretch.