借助当前先进的纳米技术，美国科学家2004年推出一项震惊世界的新发现，它很可能将成为2l世纪重大科学发现之一，这一新发现便是细胞的歌声：有些细胞的歌声低沉而浑厚，另一些细胞的歌声则悲伤凄惨。这一新发现促成了一个新型科学门类…细胞声学（sonocytology）的诞生。在不久的将来，科学家们一定能够通过识别细胞的声音来对疾病进行早期诊断。以上发现说明！[ ]
①科学技术的发展日新月异
②纳米技术正走向我们的生活
③纳米技术将会渗透到日常生活的各个方面
④人们会在不久的将来享受这一科技所赐予的种种好处
A．①②③
B．②③④
C．①③④
D．①②③④
答案：D
| 完形填空 | ||||
| On a cold November afternoon, my mother and I were walking home from a pizza store. We were dressed warmly and 1 with the rented(租)video we had been dying for watch. I was feeling a little 2 , as I was carrying our shopping bags of snacks and the 3 .They were so heavy that I decided to 4 some things. So I started to walk towards the garbage can 5 I noticed a poor man walking his bike out of the restaurant in front of us. He 6 a paper bag with his dirty hand. He headed over to another nearby garbage can and started 7 it. I suddenly felt very 8 because I was about to do away with a new drink just 9 it was heavy. I knew this man would take all he could 10 , so I walked up to him and 11 the drink and some snacks to him. The man looked up 12 and took what I gave him. A huge smile spread 13 his face and this caused me to feel indescribable 14 . I felt like I 15 be happier with myself, but then he said, "This is my son's lucky day!" With that, he 16 me happily and started off on his bike. I even heard him 17 a song as he rode away. I got a warm feeling inside and I knew I had done something good, for the man and his family. I now understand what is 18 by the saying "Giving is getting". Since then, every time I have the 19 to do something nice, the image of the man's happiness caused by my small gift appears in my mind. This is the 20 of charity. | ||||
|