New Words：
grand [grænd] adj. 重大的, 豪华的, 宏伟的, 壮丽的
phrase [freiz] n. 短语；词组；习语；成语
Sample Sentences：
He lives in a grand house.
How grand the mountains look in the early evening!
Which words or phrases do you like best?
Our teacher told us to make sentences with these phrases.
New Words：
ruin ['ruin]
n.破产；毁灭；破坏；废墟；遗迹
v.毁灭；破坏；毁坏；糟蹋
Sample Sentences：
The flood ruined the crops.
The heavy rain ruined our holiday.
The country was ruined by the war.
The old castle is now little more than a ruin.
They have created a new factory out of an old ruin.
New Words：
plug [plʌɡ]
n.插头；插座；塞子
v.堵塞；封堵；插上插头
Sample Sentences：
She pulled the plug to let out the water.
They used electricity from a plug in the garage.
He plugged his ears with cotton balls.
Will you plug in the TV for me?
New Words：
invent [in'vent] v. 发明；创造
invention [in'venʃən] n.发明；创造
Sample Sentences：
Edison invented the electric light.
Can you tell me who invented the telephone?
Which of these do you think is the most useful invention?
New Words：
compete [kəm'pi:t] v. 竞争, 比赛, 对抗
competition [.kɔmpi'tiʃən] n. 竞争, 比赛
Sample Sentences：
We can compete with the best teams.
His dream is to compete for an Olympic medal.
No student in our class can compete in English with Mary.
She won first prize in the competition.
The team put on a good show in the competition.
They had a competition to see who could throw the furthest.