New Words：

line [laɪn] n. 线；线路；直线；路线
starting line 起跑线
finishing line 终点线

Sample Sentences：

The ball went over the line.
The children all stood in a line.
Please wait inside the white line.

They crossed the finishing line together.
They were all waiting on the starting line.
Who was the first to cross the finishing line?

New Words：

in time 及时

Sample Sentences：

I hope we get there in time.
He might get there in time, but I can't be sure.
If I finish my housework in time, I will go with you.
Please make sure to send the poor lady to the hospital in time.

New Words：

thank goodness [ˈɡʊdnəs] 谢天谢地，幸亏；感谢上帝；感谢上天

Sample Sentences：

Thank goodness you found the key I lost.
If you know you pain , thank goodness , you still alive.
Thank goodness, the old man is getting better and better.
Ahha! There's a well, I found some water! I can have a drink there. Thank goodness!

New Words：

track [træk]

n. 跑道；轨道；轨迹
v. 跟踪；追踪

Sample Sentences：

You'll find your train at track 8.
The train for Chicago is on track 9.
We followed the bear's tracks in the snow.
Our teacher made us run around the track ten times!

New Words：

enjoy [ɪnˈdʒɔɪ] v.享受；欣赏；喜爱

Sample Sentences：

I enjoy playing basketball.
She enjoys all kinds of music.
Thanks for a great evening. I really enjoyed it.
Let us enjoy life, enjoy the sun, enjoy work, enjoy the fun!