New Words：

explore [iks'plɔ:r] v.探索；探讨；探究；勘探
explorer [ɪkˈsplɔrər] n. 探险者；勘探者；考察者

Sample Sentences：

We can hire bikes for a day to explore the town.
The experts are exploring every part of the island.
As soon as we arrived on the island we were eager to explore.

Christopher Columbus was one of the great explorers.
If you want to be an explorer, you must be adventurous.
The explorer told the boys about his adventures in the Arctic.

New Words：

clang [klæŋ] v.（使）发出铿锵声；（使）叮当作响

Sample Sentences：

The prison gate clanged shut.
He clanged a spoon against a glass.
The metal tool clanged when it hit the ground.

The door opened with a heavy clang.
The clang of the firebell alarmed the village.

New Words：

plain [plein]
n.平原
adj.清楚的；简单的；坦白的；平常的；朴素的；纯的

Sample Sentences：

She always wears plain clothes to work.
The meaning of the sentence is very plain.
To be plain with you, I know nothing about it.
When we reached the top of the mountain, a wide plain came into view.

New Words：

monk [mʌŋk] n. 和尚；僧侣；修道士
frock [frɔk] n. 连衣裙；女上装；罩袍；僧衣

Sample Sentences：

This monk wears a gray frock.
I was wondering if you might have a spare frock for me.
The monk and the monkey continued their journey over hills and across plains.

plain [plein] n. 平原

New Words：

bell [bel] n. 铃（声）；钟（声）；钟状物；电铃（声）

Sample Sentences：

Ring the bell to see if they're in.
Hearing the bell, we raced to the class.
A loud bell waked me from a deep sleep.
The young monk clangs the bell every morning.

monk [mʌŋk] n. 和尚；僧侣；修道士
clang [klæŋ] v.（使）发出铿锵声；（使）叮当作响