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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 |
用所给单词的适当形式填空。
Jim's bike is ________ (good), Lucy's ________ (good), Lily's is ________ (good).
Helen is ________ (tall) than Jill. Emma is ________ (tall) than Helen. Emma is ________ (tall).
Oldies 102.1 FM is pretty ________ (bad). It's ________ (bad) than All Tack 970 AM. It has ________ (bad) music.
Basketball is ________ (popular). Football is ________ (popular). Table tennis is ________ (popular).
查看习题详情和答案>>句型转换
I think it is good for animals in cages.(改成否定句)
I ________ think ________ good for animals in cages.
查看习题详情和答案>>Mary is an American schoolgirl. She is now in Beijing with her parents. Mary doesn't know Chinese. But she is trying to learn and speak it. She often tries to speak Chinese to her Chinese friends. Sometimes they don't understand (理解,明白) because she can't speak Chinese very well. It's Sunday morning. She goes out. She is walking in the street. She is going to the zoo to see the elephants and monkeys, but she doesn't know how to get there (怎样到达那里). She stops a Chinese schoolboy and asks him the way. The boy can't understand her. She looks worried. Then she finds a way to express what she wants to say. She takes out a pen and some paper. She draws an elephant on it and shows the picture to the boy. The boy has a careful look at the picture, reads it and smiles and then he shows Mary the way to the zoo.
(1) This article mainly tells us a story of ________.
[ ]
A.the picture to the boy
B.the way to the zoo
C.how to learn Chinese in China
D.an American girl Mary in Beijing
(2) The underlined words “understand her” in the text means ________ in Chinese.
[ ]
(3) The underlined words “express” in the text can be replaced by “________”.
[ ]
(4) Why does Mary stop a schoolboy in the street?
[ ]
A.Because she wants the boy to see her picture.
B.Because she wants to have a talk with a Chinese boy.
C.Because the schoolboy is on his way to the zoo.
D.Because she wants to know the way to the zoo from him.
(5) She draws an elephant and shows it to the boy, because ________.
[ ]
A.she is good at drawing
B.she wants the boy to know where she wants to go
C.she doesn't know how to say “elephant” in Chinese
D.she wants to help the boy say “elephant” in English
查看习题详情和答案>>阅读理解。
阅读下列短文,根据短文内容选出正确的答案。
Jeff is fifteen now, but he's still in Grade One. He likes playing football and does not like to use his head. He does not listen to the teachers in class and so he can not do his homework. His teachers do not like him. They tell his parents about it, but they do not know what to do. It's Sunday today. Jeff gets up early in the morning. After breakfast, his mother tells him to do his homework. He goes to his bedroom. When his mother is busy with her housework, Jeff goes out with a ball. Now it's time for lunch, but she can't find Jeff. Then he comes back. His parents look very angry, but says nothing. After lunch Jeff wants to go out again. His father stops him and asks, “Is your homework over?”“No,”answers the boy.“I can't do it.”He pulls(拉)him by the ear and says,“Where is your ear?”“Oh, dear!”Jeff calls out,“It's in your hand.”
1.What grade is Jeff in? ________.
[ ]
2.Why don't the teachers like him? Because ________.
[ ]
A.he is good at playing football
B.he does not listen to the teachers in class and he can not do his homework
C.he likes to use his head
D.he is late for school
3.Does Jeff get up early on Sunday morning? ________.
[ ]
4.Why do his parents look angry? ________.
[ ]
A.He plays football well
B.He is good at his lessons
C.He doesn't do his homework
D.He doesn't do his homework well
5.Isn't Jeff a good student?________.
[ ]
A.Yes, he is
B.No, he isn't
C.He is a good boy
D.He isn't good at his lessons
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