练习材料：
Lesson 49 The end of a dream
Tired of sleeping on the floor, a young man in Teheran saved up for years to buy a real bed. For the first in his life, he became the proud owner of a bed which had springs and a mattress. Because the weather was very hot, he carried the bed on to the roof of his house. He slept very well for the frist two nights, but on the thrid night, a storm blew up. A gust of wind swept the bed off the roof and sent it crashing into the courtyard below. The young man did not wake up until the bed had struck the ground. Alough the bed was smashed to pieces, the man was miraculously unhurt. When he woke up, he was still on the mattress. Glancing at the bits of wood and metal that lay around him, the man sadly picked up the mattress and carried it into his house. After he had put it on the floor, he promptly went to sleep again.
任务配置：
L0+L4
知识笔记：
save up 攒钱
proud /praʊd/骄傲，feeling deep pleasure or satisfaction as a result of one's own achievements, qualities, or possessions or those of someone with whom one is closely associated.
spring 弹簧
mattress /mætrəs/床垫，a fabric case filled with deformable or resilient material, used for sleeping on.
roof /ruːf/屋顶
blew up /bluː/（指暴风雨）出现并加剧；刮起
gust /gʌst/一阵风，A gust is a short, strong, sudden rush of wind.
smash /smæʃ/碰碎，摔碎 If you smash something or if it smashes, it breaks into many pieces
courtyard /kɔːʳtjɑːʳd/ 庭院
struck /strʌk/打击
miraculous /mɪrækjʊləs/奇迹般的，If you describe a good event as miraculous, you mean that it is very surprising and unexpected.
bit 碎片，A bit of something is a small part or section of it.
glance /glæns/扫视
promptly /prɒmptli/迅速地，If you do something promptly, you do it immediately.
练习感悟：
这节的生词比较多，读起来有一定难度。忘记计时，在家效率也不咋高。
