五、阅读短文,完成下列任务。
Long long ago, people wrote on bamboo strips and silk. Books were expensive and rare. About 2,000 years ago, Cai Lun improved(改进) the paper-making process. It is one of the greatest inventions in the world. 1. ____
The Wright Brothers invented the airplane. They watched the eagles and made the first plane like a kite. They tried many times. 2. ____
Do you like reading news on the Internet? If so, you can thank Tim Berners-Lee. He invented the World Wide Web. First, the Internet connects(连接) computers all over the world. 3. ____
Don't forget Hedy Lamarr. She worked with her friend and developed(开发) a new way to send radio messages(无线电消息). 4. ____
(一) 新趋势 句子回填 从方框中选择合适的句子完成短文。
A. Then, WWW lets computers share information through the Internet.
B. After that, people could write more easily.
C. This helped invent other things like Wi-Fi.
D. Finally they could fly the plane high in the sky.
(二) 阅读短文,完成下列句子。
1. People wrote on bamboo strips and silk ____ Cai Lun improved the paper-making process.
2. The Wright Brothers invented the airplane by ____.
3. Computers ____ are connected through the World Wide Web.
4. Hedy Lamarr and her friend developed a new way of ____.

(一) 1. B 2. D 3. A 4. C (二) 1. before 2. watching the eagles 3. all over the world 4. sending radio messages