New Words：
grade [ɡreɪd] n. 等级；年级
helicopter [ˈhelɪkɒptə(r)] n. 直升机
Sample Sentences：
The helicopter rose into the air.
I need you to send a helicopter to the roof.
I am a student from Class Eight, Grade Seven.
The children in Class Two Grade Three are very happy, because they're going to be in Grade Four!
New Words：
belly [ˈbeli] n. 腹部;肚子
belly button 肚脐
beer belly 啤酒肚
gas light 煤气灯
torch light [tɔːrtʃ] 手电筒
Sample Sentences：
He carried a torch to light the way.
Can you really get a beer belly from drinking?
Jason misses catching the ball and it hits his belly.
New Words：
visitor [ˈvɪzɪtər] n. 来访者;访问者;参观者;游客
foreign [ˈfɔːrən] adj. 外国的
Sample Sentences：
Visitors came from near and far.
The visitor is waiting for you in the living room.
To teach foreign languages is not so easy as you think.
Foreign countries have a different way of life from ours.
Relax! Be patient and enjoy yourself. Learning foreign languages is just a piece of cake.
New Words：
expect [ɪkˈspekt] v. 期望；预计；期待；指望
Sample Sentences：
Are you expecting visitors?
Do you really expect me to believe you?
I didn't expect him to become a successful writer.
We have one child and are expecting our second in July.
You can't expect to learn a foreign language in a few months.
visitor [ˈvɪzɪtər] n. 来访者;访问者;参观者;游客
foreign [ˈfɔːrən] adj. 外国的
New Words：
tube [tuːb] n. 管;管子;管状物;软管
Sample Sentences：
Water will come out of this tube.
Now make five holes around the end of the tube.
Every morning, she waters the flowers with tube in the garden.