1. 什么是最高级
Jack is the tallest of the three.
杰克是三人中最高的。
The novel is the most interesting one of all.
这本小说是所有小说中最有趣的一本。
He went farthest among the explorers.
这些探险家中他走得最远。
She behaved most generously.
她表现得最大方。
2. 最高级的修饰语
It was of the very highest quality.
它的质量是最高的。
This is much the most important.
这是最重要的。
Hainan is China's second largest island.
海南是中国第二大岛。
This is by far the most expensive bicycle in the shop.
这是这家商店里最贵的自行车。
3. not more than = at most
I'll stay here not more than three days.
我在这里最多待三天。
He has not more than three shirts.
他最多只有三件衬衫。
The experiment was done by not more than 5 persons.
做这个试验的人至多五个。
It is not more than ten minutes，walk from the station.
由车站走到这里最多10分钟。
4. not less than = at least
I'll stay here not less than three days.
我在这里至少要待三天。
He has not less than seven daughters.
他至少有七个女儿。
He has not less than three shirts.
他至少有三件衬衫。
It is not less than ten minutes' walk from the station.
由车站走到这里至少要十分钟。