63. By writing the
passage, the writer mainly wants to tell us _______.
A. why so many people can’t
sleep well at night
B. how to enjoy a good
night’s sleep
C. that sleeping problems
are troubling more and more people
D. that people may
solve their sleeping problems by some habits
CBDD
6(河南省郑州市盛同学校高一第一次月考) Some inventions are so useful, but seem
so simple, that we wonder why no one thought of them long ago. Post-it Notes,
the pieces of paper that you can fasten almost anywhere and then remove without
leaving any sign that they were there, are an example of such an invention.
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 colleague(同事), 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
colleague. Soon, co-workers were asking Fry for more samples(样品) 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.