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比較級形容詞或副詞 + than
You are taller than I.
They lights in your room are as bright as those in mine.
注意：
1)要避免重複使用比較級。
(錯) He is more cleverer than his brother.
(對) He is more clever than his brother. (對) He is clever than his brother.
2)要避免將主語含在比較對象中。
(錯) China is larger that any country in Asia.
(對) China is larger than any other countries in Asia.
3)要注意對應句型，遵循前後一致的原則。
The population of Shanghai is larger than that of Beijing.
It is easier to make a plan than to carry it out.
4)要注意冠詞的使用，後有名詞的時候，前面才有可能有名詞。
比較：Which is large, Canada or Australia?
Which is the larger country, Canada or Australia?
She is taller than her two sisters.
She is the taller of the two sisters.
可修飾比較級的詞
1)a bit, a little, rather, much, far, by far, many, a lot, lots, a great deal, any, still, even等
2)還可以用表示倍數的詞或度量名詞作修飾語。
3)以上詞(除by far)外，必須置於比較級形容詞或副詞的前面。
和more有關的詞組
1) the more… the more… 越……就越……
The harder you work，the greater progress you'll make.
2) more B than A 與其説A不如説B
less A than B
He is more lazy than slow at his work.= He is less slow than lazy at his work.
3) no more… than… 與……一樣……，不比……多
The officials could see no more than the Emperor.
no less… than… 與……一樣……
He is no less diligent than you.
4) more than 不只是，非常
She is more than kind to us all.
一些容易混淆的介詞
1.表示時間的'at、on、in的用法區別
at主要表示：
(1)在某具體時刻之前，如at seven o’ clock，at 7：30。
(2)在固定短語中，如：at noon，at night，at that time，at the age of at the weekend，at Christmas。
On用來表示“在……天”，如：On Monday，On May lst，On Children’s Day。
in用來表示：
(1)在某年、某月、某季節。
(2)在—段時間之後，如：in two hours，in a few days。
注意：在純粹地表示在上午/下午/晚上時，用in the morning/afternoon/evening，但在某一天的上午、下午、晚上前要用介詞on。如：on Monday morning，on the morning of Children’ s Day。
2. 表示地點的at，in，on的用法區別
(1) at通常指小地方，in一般指大地方。
(2) at 所指範圍不太明確，in指“在……裏”。
(3) in指在內部，on指“在……之上”。
3.表示“一段時間”的for與since的用法區別
for後面接時間段，since之後接時間點。
4.表示時間的before與by的用法區別
before與by都可表示“在……之前”，但by含有“不遲於……”、“到……為止”的意思。如果by後是將來的時間，則與將來時連用，若by後是過去的時間，則與過去完成時連用。 與above(under與below)
over，above都表示“在……的上面”，over表示“正上方”，而above只表示“在上方”但不一定在“正上方”。above還可表示温度、水位等“高於”，over還可表示“越過……”。over的反義詞是under，above的反義詞是below.例如：
There is a bridge over the river
Our plane flew above the clouds.
6.表示“用”的with，by，in的用法
with多指用工具，用身體的部位或器官;by表示使用的方法、手段;in指使用某種語言。如：We see with our eyes. We go there by bike.
Please say it out in English. He cut it open with a knife.
【介詞】
介詞的省略
表示時間介詞at, on, in 的省略
(1) 在 next, last, this, these, today, yesterday, tomorrow, one, every, each, all等詞前,一般不用 at, in, on.
(2) 在某些名詞詞組前,可以省略(也可不省)如: (on) that day, (in)the year before last
常見搭配
1.動詞+介詞，如：
listen to, laugh at, write to, hear from, get to, look at, shout at, shout to, knock at,
look for, look at, ask for, wait for, get on, get to, put on, turn on, operate on, take off, turn off, learn from, worry about ...
2.形容詞+介詞，如：
afraid of, full of, angry with, strict with, busy with, good at, good/bad for, late for,
sorry for, ready for, famous for, polite to, far from...
3.名詞+介詞 / 介詞+名詞
key to, visit to, at home, in surprise, after class, for ever, on time, at last, at first, for example...
