珍惜时间 　　Making Good Use Of Time 　　四—五年级 　　Goodmorning/afternoon,everybody!A famous American poet says , "Life is short, study is long." Everyone should work hard and study well. Never waste any time.

There are no words to describe the grief and anger that our city is feeling this morning. Tragically, six people have been killed in this sickening attack, and more than 40 injured, some of them criti

米歇尔·奥巴马在伦敦一所女校发表讲话，充满热情地以自身经历敦促每个学生认真对待教育。她说这些有才质的一代新人将会缩小现实世界与理想世界的差距。 This is my first trip. My first foreign trip as a first lady. Can you believe that? (Applause) And while this is not my f

And in doing so, we were breeding them for parasitism. 为了做到这点，人类用喂养的方式来让它们寄生于我们。 We were giving them all sorts of reasons to adapt new ways. 我们给了动物们适应新环境的各种理由。 So, for example, rats are incredibly res

希腊先贤的爱国情怀：德摩斯梯尼号召希腊人反抗马其顿统治的演讲 The Third Philippic(Excerpt) By Demosthenes Many speeches are made, men of Athens, at almost every meeting of the Assembly, with reference to the aggressions which Phili