Part I – B

1- a 2- d 3- e 4- i 5- f

6-j 7-g 8-b

Tape script

A. People in England made the first computer. It was built in 1943. It was made to help England understand secret messages during World War II.

B. Someone in Australia invented the fax machine. After the fax machine was invented, it first became popular in East Asia.

C. Folding fans came from Japan. They were invented in Japan almost 800 years ago.

D. The first car came from Germany. It was invented by Karl Benz in 1885. Benz is still famous. His name is on the Mercedes-Benz car.

E. A man in Canada invented the chocolate bar. He lived in Nova Scotia- in the eastern part of Canada. He invented the chocolate bar in 1800s.

F. The first really accurate calendar was invented in Mexico. This calendar was made about 1,500 years ago. That's when people learned that the year was 365 days long. G. The first mechanical clock was invented in China. It was invented in the year 725-over1,250 years ago.

H. People think Africans created the first puppets. Actually, no one is sure, but puppets were probably created to help tell stories.

Part I – C

paper clips -1901

post-its -1980

celluar phone -1973

automatic washing machines -1930s

disposable diapers -1961

zippers -1913

Band-Aids -1921

soft contact lenses -1961

Tape script

1. The design of paper clips is perfect. There's been little improvement since Norwegian Johan Vaaler got his American patent in 1901. Only about 20% are actually used to clip papers.

2. Post-it is one of the top five best-selling office suppliers. To make Post-its, introduced in 1980, 3M had to develop the adhesive, primer, back-side coating and new manufacturing equipment.

3. The first cellular phone was developed in 1973 by Martin Cooper at Motorola, and a test of 1,000 such phones followed in Chicago. The Federal Communication Commission authorized cellular service in 1982, and we haven't shut up since. More than a third of all households in the U.S subscribe.

4. Among those credited with making electric washing machines was Alva J. Fisher. The machines used wringers to remove water from clothes. Truly automatic machines appeared in the 1930s. An early ad for a GE washer read, "If every father did the