大师作文网课文 详细文章是什么?[急]
来源：学生作业帮 编辑：大师作文网作业帮 分类：英语作业 时间：2024/09/28 19:27:28
课文 详细文章是什么?[急]
好急地说 要整篇的说尽量多几篇 要完整 一定要完整呢~
好急地说 要整篇的说尽量多几篇 要完整 一定要完整呢~
![课文 详细文章是什么?[急]](/uploads/image/z/4299663-39-3.jpg?t=%E8%AF%BE%E6%96%87+%E8%AF%A6%E7%BB%86%E6%96%87%E7%AB%A0%E6%98%AF%E4%BB%80%E4%B9%88%3F%5B%E6%80%A5%5D)
自己看巴.你没有书吗?a little from a pen-friend
dear may
hi!l saw you name and address in pen friend magazine,and l would like to be your penfeiend .first,l'll tell you something about myshelf.my name is sidney yipeichun,i'm
fourteen years old.l'm about five feet tall.l have short black hair and brown eyes.my favourite hobby is playing computer games.l also enjoy palying chess.
l live with my parents.they came to england about 30 years ago.they came from hong kong,but l have never been there .nowmy parents own a chinese restaurant.l can speak chinese but l can't write it very well.l have a brother called edwin.he is 23.he worked as an architect,in lundon.
l'm in form one at walker school.it is near my house,so i can walk to school.l like my school because the teathers are very friendly
my school has many sports fields.l'm keen on sports.l enjoy playing rugby and badminton in the winter and tennis in summer.my best subjectat school is physics.my ambition is to be anengineer.
numbers：everyone’s language
how many languages do you know?everyone knows at least two—his or her own language and the international language of numbers
ancient numbers
in ancient times,people wrote numbers in many different ways-as these pictures of number six show.however,they nearly all counted in thesameway-intens
zero
the systerm of numbers that nearly everyone uses today consists of numbers from 1-9 and zero.with zhe tennumbers,we can write nang numbers from the langerest to zhe smallest.the indian first invented the 1-9 systerm of thenumbers.they then invented zero.this was a very imporent invention because it made it seaier to write big numbers and to calculate.
calculating machines
one of the first calculating matines was an abcues.abcues are so fast and accurate that people stil use them today.on the abcues in the pictures,the beads on the wires represent ones,tens hundreds,and thousands and starting from the bottom wire.
the picture on the right shows a modern electrinic calculator.it can add ,multiply and divide.it can also calculate percentages and square roots.
the picture on the right shows a computers.computers are very powerful calculating machines.in a flash,it can do a calculation that you could not do in your whole lifetime.
brain againest computer
some people call brain a living computer.is a human brain a more powerful calculator than a computer?the following story may give you an answer.
shakuntala devi is a lady from indian with an amazing brain.it can calculate like lightning.in a america,shakuntala and a very powerful computer were given this problem to solve.
shakuntala’s brain took fifity seconds to find the answer.the computer took a minute .however,before computer could begin calculating,someone had
to program it with instructions,and that took mang hours no one had to program shakuntala!
use your own living computer to solve the program above if it is not powerful enough,you will find the answer on page 59.
dear may
hi!l saw you name and address in pen friend magazine,and l would like to be your penfeiend .first,l'll tell you something about myshelf.my name is sidney yipeichun,i'm
fourteen years old.l'm about five feet tall.l have short black hair and brown eyes.my favourite hobby is playing computer games.l also enjoy palying chess.
l live with my parents.they came to england about 30 years ago.they came from hong kong,but l have never been there .nowmy parents own a chinese restaurant.l can speak chinese but l can't write it very well.l have a brother called edwin.he is 23.he worked as an architect,in lundon.
l'm in form one at walker school.it is near my house,so i can walk to school.l like my school because the teathers are very friendly
my school has many sports fields.l'm keen on sports.l enjoy playing rugby and badminton in the winter and tennis in summer.my best subjectat school is physics.my ambition is to be anengineer.
numbers：everyone’s language
how many languages do you know?everyone knows at least two—his or her own language and the international language of numbers
ancient numbers
in ancient times,people wrote numbers in many different ways-as these pictures of number six show.however,they nearly all counted in thesameway-intens
zero
the systerm of numbers that nearly everyone uses today consists of numbers from 1-9 and zero.with zhe tennumbers,we can write nang numbers from the langerest to zhe smallest.the indian first invented the 1-9 systerm of thenumbers.they then invented zero.this was a very imporent invention because it made it seaier to write big numbers and to calculate.
calculating machines
one of the first calculating matines was an abcues.abcues are so fast and accurate that people stil use them today.on the abcues in the pictures,the beads on the wires represent ones,tens hundreds,and thousands and starting from the bottom wire.
the picture on the right shows a modern electrinic calculator.it can add ,multiply and divide.it can also calculate percentages and square roots.
the picture on the right shows a computers.computers are very powerful calculating machines.in a flash,it can do a calculation that you could not do in your whole lifetime.
brain againest computer
some people call brain a living computer.is a human brain a more powerful calculator than a computer?the following story may give you an answer.
shakuntala devi is a lady from indian with an amazing brain.it can calculate like lightning.in a america,shakuntala and a very powerful computer were given this problem to solve.
shakuntala’s brain took fifity seconds to find the answer.the computer took a minute .however,before computer could begin calculating,someone had
to program it with instructions,and that took mang hours no one had to program shakuntala!
use your own living computer to solve the program above if it is not powerful enough,you will find the answer on page 59.