1 слайд
TEXT COMPRESSION
2 слайд
Many computer users are familiar with
compressed formats such as zip, gzip, or gif images.
These are based on a method called Ziv-Lempel coding,
which turns out to be an interesting exercise in finding
patterns in text.
Show “The Rain” . Look for the patterns of letters
in this poem. Can you find groups of 2 or more letters
that are repeated, or even whole words or phrases?
(Replace these with boxes as shown in the diagram
below.)
3 слайд
The Rain
Pitter patter
Pitter patter
Listen to the rain
Pitter patter
Pitter patter
On the window pane
4 слайд
Pitter Patter
Pi tter Pa
5 слайд
Many of the words and letters are missing in this poem. Can you fill in the
missing letters and words to complete it correctly? You will find these in the
box that the arrow is pointing to.
6 слайд
Pease porridge hot,
Pease porridge cold,
Pease porridge in the pot,
Nine days old.
Some like it hot,
Some like it cold,
Some like it in the pot,
Nine days old.
7 слайд
Replacement (simplification)
•
homogeneous terms by a generalizing
word;
•
complex sentence - simple;
•
part of a sentence or series of sentences by
a common notion or expression;
•
direct speech - indirect;
•
part of the text - one sentence;
•
parts of sentence by a pronoun, etc. One of the methods of text compression
8 слайд
Books
It goes without saying, books are our teachers and
friends. They teach us to be kind, clever, polite,
hardworking, friendly. Books help us to learn more
about nature, the world around us and many other
interesting things.
There are a lot of books on history, about animals,
travellers, children, school and so on. Children like to
read adventure and magic books, science fiction and
detective stories.
Books are our teachers and friends. They teach us to
be good person. Books help us to learn more about
environment. There are a lot of different books.
Children like to read fantastic books.
9 слайд
Practice
My name is Tanya. I live in Minsk, the capital of Belarus.
I live in Gerasimenko street in a large nine-storeyed
house. Our flat is on the eighth floor. Our flat is not large
but it is very cosy. There are two rooms in our flat. There
is a living- room and a bedroom in our flat. There is a
kitchen, a bathroom and a toilet there, too.
Our living-room is light and comfortable. There is only
one window in it, but it’s very large. There is modern
furniture in our living-room. There is a wall-unit, a TV-
set, a sofa, two armchairs and a table in the room. There
is a large carpet on the floor. But there is no carpet on the
wall. There are some pictures on the walls. I like to watch
TV in the living-room and to play or talk with my parents
in the evening there.
10 слайд
Сіз үшін 400 000 ұстаздардың еңбегі мен тәжірибесін біріктіріп, ең үлкен материалдар базасын жасадық. Төменде пәніңізді белгілеп, керек материалды алып сабағыңызға қолдана аласыз