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Post-it Notes were invented about twenty years ago by Art Fry, a scientist at 3M Corporation. The idea for the product came from a frustrating experience he often had while singing in his church choir. Fry used pieces of paper as bookmarks to mark the places in his book of songs, but these bookmarks were always falling out. He knew he needed a bookmark that would stay where he put it, but that he could remove without damaging the pages.
Around that time, Fry heard about a new adhesive (粘合剂) that a workmate, Dr. Spence Silver, had created. This adhesive was special because it was sticky, but not too sticky. It was strong enough to hold papers together, but weak enough to not tear the paper when it was removed. Fry saw that the new adhesive could help solve his bookmark problem. One morning, Fry put some of the adhesive on the edge of a piece of paper. Just as he hoped, it made a perfect bookmark.
A short time later, Fry realized that his new invention had even more uses than being a great bookmark. He came to this realization when he wrote a note on one of his new "bookmarks" and attached it to a report he was going to give to a workmate. Soon, co-workers were asking Fry for more samples of his invention so that they could use the new type of notes themselves.
Fry and some other people at 3M believed so much in the new product that they persuaded the company to give away thousands of the "sticky pieces of paper" for trial use(试用). When some salespeople at 3M went to offices and showed workers just how helpful the new type of notes could be, they immediately received many orders. As more and more people discovered how useful Post-it Notes could be, the product took off.
小题1:The invention of Post-it Notes showed that Art Fry________ .
| A．had a lot of knowledge |
| B．was very hard-working |
| C．was good at creative thinking |
| D．loved his job in the church |
| A．They worked together and often discussed science. |
| B．His invention of a special adhesive made Art's invention possible. |
| C．He advised 3M Corporation to give away lots of Post-it Notes for trial use. |
| D．He worked together with Art by providing the new adhesive for Art. |
| A．started to leave the ground | B．disappeared from the market |
| C．had even more uses | D．became popular very quickly |
| A．it can stay anywhere and leave no sign when removed |
| B．it is very cheap to use |
| C．it is good to write notes on |
| D．it is very thin and beautiful |
Mary picked up a pencil and a piece of paper，saying，“Now，you want to earn money for the autumn camping trip，right?” Tom，her brother，nodded．He wasn’t able to go last year because he hadn’t earned enough money during the summer．This year he came up with a plan．
He made a necklace for his mother that everyone admired．They were surprised to learn that Tom had made it for her．Why not make more necklaces and sell them?
“OK，” said Mary，“The first thing you need to do is to figure out（计算）how much you have now．’’
“I have $20.00 in the bank，and $7.25 in my room，” explained Tom．
“That gives you a total of $27.25，” said Mary，“That is called your capital．The next thing you need to know is how much it will cost you to make each necklace．”
“Well，the pet shop wilt give me all the feathers the birds lose．I'll have to buy the beads（小珠子）and string，” said Tom．
Mary wrote on the piece of paper：
| CAPITAL $27.25 EXPENSES Feathers no coat String for lo necklaces $2.50 Beads for lo necklaces + $15.00 Total $17.50 |
“How much do you think you can sell such a necklace for?” asked Mary．
“Hmm，” Tom looked thoughtful and said，“There's a shop in town that sells almost the same kind of necklace for $ 7.50．If I charge（要价）$ 6.00，people will think that's a bargain．”
“OK．If you sell each necklace for $ 6.00，you'll make a good profit（利润）on each then，” said Mary．
“Hurray!” Tom cried，“If I sell 2.0 necklaces，I'll have enough from the profit for the camping trip and $10.00 left over．”
1．Which word best describes Mary?
A．Confident． B．Generous． C．Helpful． D．Outgoing．
2．The underlined word "bargain" in this story means “________”．
A．something sold cheap B．something sold expensive
C．something made at home D．something made by children
3．How much would Tom have to spend on the camping trip?
A．$ 47.45． B．$ 75． C．$ 85． D．$102.25．
4．How did Tom know how much he would have left over after paying for the camping trip?
A，He took the cost of the trip from the profit he would make on 20 necklaces．
B．He added the cost of the trip to the profit he would make on 20 necklaces．
C．He asked Mary for the answer．
D．He took the cost of each necklace from the amount of money he had to begin with．
5．What's the best title for this story?
A．How to Make Necklaces B．How to Sell Necklaces
C．How to Make a Plan D．How to Earn Money for a Trip
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