1） the more…the more… 越……就越……。例如：
The harder you work，the greater progress you'll make. 越努力，进步越大。
2） more B than A=less A than B 与其说A不如说B。例如：
He is more lazy than slow at his work. = He is less slow than lazy at his work. 他工作时，与其说是反应慢不如说是懒。
3） no more… than… 与……一样……，不比……多。例如：
The officials could see no more than the Emperor. 官员们看到的和皇帝一样多。
no less… than… 与……一样……。例如：
He is no less diligent than you. 他和你一样勤勉。
4） more than 不只是，非常。例如：
She is more than kind to us all. 她对我们非常热心。
典型例题
1）The weather in China is different from____.
A. in America B. one in America C. America
D. that in America
答案：D. 本题意为"中国的天气比美国热。"比较的是天气而不是国家，C不能选。A没有名词，后句成分不全，排除。B和D中，B中的one常用来代替可数名词，而that可车以代替不可数或抽象名词，所以选D。
2）After the new technique was introduced，the factory produced ___ tractors in 1988 as the year before.
A. as twice many B. as many twice C. twice as many D. twice many as
答案C. 此句意为"这个厂1988能生产的拖拉机是往年的两倍"。表示倍数用"倍数+ as + 形容词原形+ as +比较对象"的句型。所以此句答案为C。