附加题:翻译下列句子。( 每小题2分,共计10分) 1.我们一直期待着五一的到来。(look forward to) ___________________________________________________________________________ 2.为了减肥,我的妹妹在节食。(be on a diet) ___________________________________________________________________________ 3我正要出发,天开始下雨。(be about to do) _____________________________________________________________________________ 4.谁能阻止我们实现我们的梦想?(prevent… from) ____________________________________________________________________________ 5. Mr. Smith 的演讲给我们留下了深刻的印象。(make a deep impression on) _____________________________________________________________________________