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1、Welcome UnitWords and phrases study1.senior adj.级别高的 n.较年长的人 2.反义词-junior adj.地位低下的3.n.职位较低者，青少年 4.be senior to 比.年长或资历深 5.senior high school 高中6.eg.这个老板比大多数员工的资历都要深。7.The employer is senior to the most employees.at last 最后，终于outgoing adj.爱交际的，外向的 shy adj.害羞的guy n.小伙子，家伙experiment n.实验awkward adj.令人
2、尴尬的，难对付的explore v.探索，勘探take notes 记笔记 eg.做笔记会使我们学得更好.Taking notes can help us learning well.2.impression n.印象，感想 impress v.留下印象 impressive adj.感人的，给人印象深刻的be impressed by/at/with 被什么打动make/leave an impression 留下好印象eg.我被这部电影打动了。I am impressed by this film.找工作的时候，留下好印象非常重要。It is important to make an im
3、pression when looking for a job.3.what if.要是.会怎么样呢？eg.要是明天下雨会怎么样呢？What if it rains tommorow?4.concentrate V.集中注意力concentrate（ones attention）on 全神贯注于concentrate on doing sth.专心于做.eg1.我们应该全神贯注于课堂。We should concentrate our attention on class.eg2.我们应该专心学习英语。We should concentrate on learning English.5.le
4、ave.alone 不打扰，不惊动leave for 动身去leave.aside 搁置，不考虑leave.behind 忘带，落后eg1 别烦我！Leave me alone!eg2 动身去武汉。Leave for Wuhan.eg3 我忘带书了。I left my book behind.6.confident adj.自信的 confidence n.信心be confident of/about/in 对.有信心have confidence to do 有信心做.eg1.我对她有信心。I am confident about her.eg2.我有信心完成工作。I have confi
5、dence to finish this work.7.forward adv.向前 adj.向前的look forward to(doing)sth 盼望，期待eg.期待你的回复。Look forward to your repply.eg.期待和你一起吃晚餐。Look forward to eating dinner with you.8.curious adj.好奇的 curiosity n.好奇心 curiously adv.好奇地be courious about 对.好奇be courious to do 很想做.It is courious that.是很奇怪的eg1.我对故事的结局感到很好奇。I am curious about the ending of the story.eg2.我很想喝水。I am curious to drink water.eg3.他昨天起那么早太奇怪了。It is curious that he got up so early yesterday.