1. more＋原级/名词＋than＋原级/名词, 意为“与其说是……不如说是……”。如:
He is more diligent than clever. 与其说他聪明，不如说他勤奋。
2.“比较级＋and＋比较级”和“more and more＋多音节词原级”, 表示程度递增。这种结构后不可接than引导的从句。如:
Things are getting better and better. 事情变得越来越好。
She plays the piano more and more beautifully. 她钢琴弹得越来越漂亮了。
3.“the＋比较级, the＋比较级”表示两种情况同时变化。这个句型中的第一句相当于状语从句, 不能用将来时态。如:
The more medicine I take, the worse I seem to feel. 我吃的药越多，我感觉越糟糕。
4. “no＋比较级＋than...”意为“都不”, 是对两者的共同否定, 侧重前者; “not＋比较级＋than...”意为“不及”, 表示前者不如后者, 隐含对两者的肯定, 侧重后者。如:
He is no taller than I. 他和我一样都不高。
My handwriting is not better than yours. 我的字迹不如你的好。
5. “the＋比较级＋of the two(＋名词)”, 表示“两者中较……的一个”。如:
The taller of the two boys is my brother. 两个男孩中较高的一个是我的兄弟。
最高级表示在一定范围内某事物或某人在性质、高低或大小等方面程度最高或最低。“……之中最……”, 用于三者或三者以上的比较。同类范畴用of, 不同类用in。
He talks (the) least and does (the) most in his class. 他在班上讲得最少，做得最多。
He is the fastest runner of the three boys.
7. not/never＋比较级 “最……不过”。
His work couldn’t be worse. 他的工作不会更糟糕了（空前绝后的糟糕）。
He has never spent a more worrying day. 他从来没有度过一个更令人担忧的一天。
Nothing is better than a hot drink on a cold winter day.
（1）A is three(four, etc.)times the size(height, length etc.)of B.
The new building is four times the size(the height)of the old one.
（2）A is three(four, etc.)times as big(high, long, etc.)as B.
Asia is four times as large as Europe.
（3）A is three (four, etc.)times bigger(higher, longer, etc.)than B.
Your school is three times bigger than ours.
1．—Who would you like to be your assistant, Jack or David?
—If I had to choose, David would be ______ (good)choice.
2.Lily seems to know a lot about Hong Kong, but_______ (actual)she has never been there.
3．China is no longer ______ (mere)a production base; it is also one of the most important consumer markets.
4. To our delight, the result of the experiment is entirely______consist） with what we expected.
5. Whatever background you come from, you can be ________ (equal)successful with your hard work like many others.
6．Your statement is too general.Could you be more ________ (specifically)about what you’re going to do in the future?
7．The contract is not ________(validity)， because one of the people who signed it is not legally old enough to do so.
8．Don’t take it for granted that parents should show their unconditional love to you.You should also understand and be ________ (sense)to their feelings.
9.History is the best teacher. It ______ (faith)records the development path of each country and foretells the future to us.
10．In face of trouble, although I feel disappointed about where I am, I still think ________ (optimistic)about where I am going.