New Words：

den [den] 兽穴；书房；兽窝；窝点
branch [brɑːntʃ] 树的分枝（区别于“主干”）
branches [ˈbrɑːntʃɪz] branch的复数
log [lɒɡ] 采伐后未经加工的木料

Sample Sentence:

The tiger went back to its den.
I can see the branches of the trees.
I saw a man saw a log with a saw.
She went to warm her hands by the log fire.

worry

New Words：

under control 得到控制;被控制住;得到控制
lose control 失去控制;情绪失控
out of control 失去控制;不受控制

Sample Sentences：

Please keep your dog under control!
Don't worry ─ everything's under control!

He lost control of himself and hit her.
I don't want to lose control of my life again.

The fire was out of control.
' She's out of control! ' I thought.

New Words：

follow [ˈfɒləʊ] 跟随;跟着
control [kənˈtrəʊl] 控制;掌管

Sample Sentences：

He followed her into the house.
Follow me please. I'll show you the way.
Follow this road until you get to the school, then turn left.

Can't you control your children?
She lost control of her car.
She lost control of her car on the ice.

New Words：

nation [ˈneɪʃn] 国家;民族;国民
national [ˈnæʃnəl] 国家的;民族的
National Day 国庆节

Sample Sentences：

China is a very old nation.
Pandas are the treasures of our nation!
We are a great nation, the leader of the world.

Happy National Day to all of you!
What are the colors of our national flag?
Today is National Day. It was a fine day for going out.

flag [flæɡ] 旗;旗帜

New Words：

lead [liːd] 带领；领导；引导
led [led] lead的过去分词和过去式
leader [ˈliːdər] 领导者;领袖;首领
kept [kept] keep的过去分词和过去式

Sample Sentences：

He is ready to lead this nation.
Jack led the way down the rock.
You lead the way and I'll follow you.

Dogs must be kept on a lead in the park.
You must keep your dog on a lead in the park.
If you can't control your dog, put it on a lead.