WelcomeUnitWordsandphrasesstudysenioradj.級別高的n.較年長的人反義詞--junioradj.地位低下的n.職位較低者，青少年beseniorto比...年長或資歷深seniorhighschool高中eg.這個老板比大多數(shù)員工的資歷都要深。Theemployerisseniortothemostemployees.atlast最后，終于outgoingadj.愛交際的，外向的shyadj.害羞的guyn.小伙子，家伙experimentn.實驗awkwardadj.令人尷尬的，難對付的explorev.探索，勘探takenotes記筆記eg.做筆記會使我們學(xué)得更好.Takingnotescanhelpuslearningwell.

2.impressionn.印象，感想

impressv.留下印象impressiveadj.感人的，給人印象深刻的beimpressedby/at/with被什么打動make/leaveanimpression留下好印象eg.我被這部電影打動了。Iamimpressedbythisfilm.找工作的時候，留下好印象非常重要。Itisimportanttomakeanimpressionwhenlookingforajob.3.whatif...要是...會怎么樣呢？

eg.要是明天下雨會怎么樣呢？

Whatifitrainstommorow?

4.concentrateV.集中注意力concentrate（one’sattention）on全神貫注于concentrateondoingsth.專心于做...eg1.我們應(yīng)該全神貫注于課堂。Weshouldconcentrateourattentiononclass.eg2.我們應(yīng)該專心學(xué)習(xí)英語。WeshouldconcentrateonlearningEnglish.5.leave...alone不打擾，不驚動leavefor動身去leave...aside擱置，不考慮leave...behind忘帶，落后eg1別煩我！Leavemealone!eg2動身去武漢。LeaveforWuhan.eg3我忘帶書了。Ileftmybookbehind.6.confidentadj.自信的

confidencen.信心beconfidentof/about/in對...有信心haveconfidencetodo有信心做...eg1.我對她有信心。Iamconfidentabouther.eg2.我有信心完成工作。Ihaveconfidencetofinishthiswork.7.forwardadv.向前adj.向前的lookforwardto(doing)sth盼望，期待eg.期待你的回復(fù)。Lookforwardtoyourrepply.eg.期待和你一起吃晚餐。Lookforwardtoeatingdinnerwithyou.8.curiousadj.好奇的curiosityn.好奇心curiouslyadv.好奇地becouriousabout對..好奇becourioustodo很想做...Itiscouriousthat.......是很奇怪的eg1.我對故事的結(jié)局感到很好奇。Iamcuriousabouttheendingofthestory.eg2.我很想喝水。I