1) The Sahara is the biggest desert in the world.
形容词最高级前通常必须用定冠词 the，副词最高级前可不用。
形容词most前面没有the，不表示最高级的含义，只表示"非常"。
It is a most important problem.
=It is a very important problem.
注意： 使用最高级要注意将主语包括在比较范围内。
(错) Tom is the tallest of his three brothers.
(对) Tom is the tallest of the three brothers.
2) 下列词可修饰最高级，by far, far, much, mostly, almost
This hat is nearly / almost the biggest.
注意：
a. very可修饰最高级，但位置与much不同。
This is the very best.
This is much the best.
b. 序数词通常只修饰最高级。
Africa is the second largest continent.
3) 句型转换：
Mike is the most intelligent in his class.
Mike is more intelligent than any other students in his class.
4) "否定词语+比较级"，"否定词语+ so… as"结构表示最高级含义。
Nothing is so easy as this.
=Nothing is easier than this.
=This is the easiest thing.
（实习编辑：刘佰万）
托福高分指南 托福考试听力细节题怎么做
托福考试中，听力是最重要的部分，也是最容易失分的地方，所以大家考托福一定要掌握技巧。下面就和留学在线网看看托福高分指南 托福考试听力细节题怎么做？
一.托福听力细节题概览
听力细节题分布：Conversation1-2道，lecture当中2-3道，总共占所有题目中的50%以上。
考点位置：篇章中的各种重要细节。
听力细节题难点：1.不知道哪里是重点细节。2.很容易忽略各种细节。3.听过就忘记了。
二.托福听力细节题解题方法
解题思路：拼命定位及记忆重点细节
解题方法：
1.尽量筛选出所有出现在逻辑后面的细节：并列、转折、因果、举例、解释
2.比较关系有可能会是考点
3.教授强调的重点，如interesting、don＇t forget几乎都是考点
4.利用好笔记，通过各种逻辑符号帮助做题时回忆起重要细节
三.细节题解题例子
例子29 Lecture1 Ecology
7/34 According to the professor， in what way is the soil in forested areas generally different from soil in other areas？
A. In forested areas， the soil tends to be warmer and moister.
B. In forested areas， the chemistry of the soil changes more rapidly.
C. In forested areas， there is usually more variability in soil types
D. In forested areas， there is generally more acid in the soil.
解题思路：
-听力讲座的主旨是分析古老森林中土壤多样性的成因及其应用
-排除掉信息不同步的
-排除掉没有出现的观点
例子21 Lecture3 Biology
27/34. Why does the professor mention the brown tree snake？
A. To support a hypothesis about the evolution of constrictor snakes
B. To support a hypothesis that venomous snakes evolved from constrictor snakes
C. To give an example of a snake species that was never venomous
D. To give an example of a type of snake that can change its color
解题思路：
-听力讲座的主旨是通过分析毒液的DNA而进一步了解蛇的进化过程
-排除掉过于极端的
-排除掉没有出现的观点
托福高分指南 托福考试大学英语四级语法大全之many,old 和 farmany,old 和 far：
1) 如果后接名词时， much more +不可数名词
many more +可数名词复数
2) old 有两种比较级和最高级形式：older/oldest 和elder/eldest。 elder，eldest 只用于兄弟姐妹的长幼关系。
My elder brother is an engineer.
Mary is the eldest of the three sisters.
3) far 有两种比较级，farther，further. 在英语中两者都可指距离。
在美语中，father 表示距离，further表示进一步。
I have nothing further to say.
（实习编辑：刘佰万）
From:https://www.zgghmh.com/CET-4/20000227.asp