1、Welcome unit-Hewen1.exchange n.交换；交流 vt.交换；交流；交易；兑换in exchange(for)作为(对的)交换exchange A for B 拿A换Bexchange sth.with sb.与某人交换某物2.lecture.n.讲课，讲座、vi/vt教训、训斥lecturer n.演讲者；讲师have/attend a lecture听讲座give sb a lecture 训斥某人be lectured for.因.而被责备3.register vt.&vi.登记；注册registration n.登记；注册；挂号4.nationality n.国
2、籍；民族 nation n.国家；民族；国民 national adj.国家的；民族的5.designer n.设计者 design v.设计；筹划 n.设计(方案)by design 故意地(on purpose)design.for.打算给用；目的是be designed for.为设计be designed to do.为某目的或用途而制造或设计6.formal adj.正式的；正规的 formally adv.正式地；正规地 informal adj.非正式的7.anxious adj.焦虑的；不安的anxiety n.U忧虑；渴望；C担心；忧虑be anxious for/about
3、.为担心/担忧 be anxious to do sth.渴望/急于做某事with anxiety 焦急地8.annoy.vt.使恼怒；打扰；annoyed.生气的；恼怒的be annoyed with对.生气be annoyed at被.烦扰be annoyed by对.感到不快9.frightened adj.惊吓的，害怕的frighten v.(使)惊吓；(使)惊恐frightening adj.令人恐惧的，可怕的be frightened of.害怕10.senior adj.年长的；级别(或地位)高的 n.较年长的人；前辈；资历较深者be senior to比大/年长11.impre
4、ssion n.印象；感想 impress使钦佩、给.留下深刻的好印象 vi impressive adj.令人难忘的leave/make an impression on.给留下印象be impressed by/with.被打动impress sth on sb/impress sb with sth 某事给某人留下深刻印象12.concentrate vt/vi 集中；聚精会神concentrate on(doing)sth专心(做)某事13.explore.vt/vi探索；勘探exploration n.探索；勘探14.leave.alone不打扰；不惊动leave for 动身去le
5、ave behind 留下；忘记带走；使落后leave out 省略；删去；冷落15.confident.自信的；有把握的confidence n信心；信任have confidence to do.有做.的信心16.look forward to（doing）盼望.17.organise vt/vi组织；安排；组建 organisation n.组织；机构 organised adj.有组织的的 organiser n.组织者18.improve vt/vi改进；改善 improvement n.改进；提高19.curious adj.好奇的；求知欲强的curiosity n.好奇；好奇心b
6、e curious about 对.感到好奇be curious to do sth好奇做某事meet ones curiosity满足某人的好奇心out of curiosity出于好奇 My name is Li Hua,a high school student of seventeen.I live at No.26 Huangpu Road,Shanghai,China and study in No.21 Middle School of Shanghai.In common with many teenage boys,I like playing football in my
7、spare time,and collecting stamps is also my favorite.Besides,Im quite interested in fishing.Its three years since I started learning to fish.As an outgoing boy,Im more than glad to make new friends with you.Im a warm-hearted boy.If you need help,I will do my best to help you.I plan to be an engineer in the future.
