Words and expressions• 1. unforgettable adj. ( 尤作褒义 ) • an unforgettable experience/moment• forget v. • forgetful adj. 健忘的• 2. host vt. 主办 / 主持某活动 ; 作为主人招待某人• 1)Which country is hosting the Games this year?• 2)Hosting our show this evening is the lovely Mary Smith.我们今晚的演出由美丽的…主持 .• host n. 1. 主人• 女主人 : • 1)I was away so my son acted as host.• 2) the host nation • 2.• Your host on tonight’s show is Max Astor. hostess 东道国 , 主办国( 电视节目等的 ) 主持人3. take place, happen: take place 多指有意识组织活动或渐变的事情 ;而 happen 多强调偶然发生的事件。Great changes have taken place in the past ten years in China.Something must have happened to him.The accident _________ early this morning.When does the ceremony( 仪式 ) _________?happenedtake place come aboutThey didn’t know how the change had come about. • 4.on fire ( 状态 ) • The house was on fire.• catch fire ( 动作 ), 着火• 1)Paper catches fire easily.• 2)The house caught fire an hour ago and it is still on fire now.• 5. scare • vt. 使惊吓• 1)Did the ghost story scare you?• 2)I’m scared to fly in a plane – scared that it might crash.• vi. 惊吓 • 1)He scares easily.• be scared of : • 1)He was much scared of his wife.• 2)What are you scared of?He is easily scared.害怕…• 6.rescue vt.• The firemen rescued three women from the burning house.• n.• 1)The fireman was praised for his rescue of the children in the burning house.• 2)A rescue team are trying to reach the tourists.• 7.advance v. 前进 , 进展 move forward or develop• 1)The soldiers advanced on the enemy.• 2)A month has passed and the work has not advanced.• n. 前进 , 进展 forward movement or develo...