19. A. added up B. ruled out C. went beyond D. turned down
20. A. glad B. sad C. angry D. upset
Ⅲ. 七选五型阅读理解
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Could your body replace mobile-device batteries? Researchers have developed a way to create the power equivalent (相当于)of two double-A batteries, using nothing more than motion of the human body.
1 The energy is captured and used by nano generators(纳米发电机), according to a team of scientists from Georgia Institute of Technology. This research, presented at a meeting of the American Chemical Society, demonstrated how a small, flexible chip containing millions of tiny wires-500 times thinner than a human hair-could use the human heart to create electrical energy. 2
Any kind of bodily movement could theoretically be used to generate power, and nano wires can also generate electricity in response to wind, rolling tires, or other kinds of motion. 3 But these most recent findings do signal a breakthrough.
Researchers are convinced the technology has a future. "A few volts may not seem like much. 4 " said the project's lead scientist, Zhong Lin Wang. "Additional nano wires and more nano generators, put together, could produce enough energy for powering larger electronics. 5 "
A. The technology is not new.
B. Then we can use it to charge an iPod or a cell phone.
C. Anything from walking to a standing heartbeat could produce energy.
D. So it is necessary to save energy in case we run out of it at the sky point.
E. There is still a long way to apply this kind of technology in our daily life.
F. The researchers used a nano generator to power an LED light and LCD display.
G But it has grown by leaps and bounds over previous versions of the nano generator.
Ⅳ. 语法填空
阅读下面材料,在空白处填入1个适当的单词或括号内单词的正确形式。
Disney's cartoon movie, Coco, has become 1 hit and received plenty of positive 2 (review). It tells a story about a Mexican boy 3 (name) Miguel. Despite his family generation-old ban 4 music, Miguel dreams of becoming an accomplished musician. Desperate to prove his talent for music, he finds 5 (he) in the amazing and colorful Land of the Dead, 6 (follow) a mysterious chain of events. Along the way, he 7 (meet) a singer, Hector, and 8 (passionate) they set off on an extraordinary journey.