The sun is much bigger than the earth.
错误：The sun is more bigger than the earth.
She is by far the cleverest girl in our class.
by far 到目前为止
It's becoming the third largest city in the country.
They have many more chemistry books than we.
There is much more water in this jar than that one.
They will come back a little earlier.
This time she ran a good deal faster.
Tom is six centimeters taller than John.
Of all the workers in the factory， Alice is by far the most skilled.
重点掌握：
1、只能作表语的形容词。
2、特殊形容词、副词的比较级和最高级。
3、比较级多用than，个别情况下用 of the two.比较时，前后成分一定一致。
4、the +比较级…，the+比较级
5、as+原级+as ， not as / so +原级+as
6、“as+原级+as”可以用来表示倍数。
He is almost as tall as his brother.
My father isn't as old as he looks.
This word is used less frequently in British English than in American English.
Spanish people usually speak more quickly than English people.
Winter is drawing near. It's getting colder and colder.
The more you practise writing， the better you will do it.
The more work we give our brains， the more work it is able to do.
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