公共英语一级考试语法复习大纲
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比较级形容词或副词 + than
You are taller than I.
They lights in your room are as bright as those in mine.
注意：
1要避免重复使用比较级。
错 He is more cleverer than his brother.
对 He is more clever than his brother. 对 He is clever than his brother.
2要避免将主语含在比较对象中。
错 China is larger that any country in Asia.
对 China is larger than any other countries in Asia.
3要注意对应句型，遵循前后一致的原则。
The population of Shanghai is larger than that of Beijing.
It is easier to make a plan than to carry it out.
4要注意冠词的使用，后有名词的时候，前面才有可能有名词。
比较：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.
可修饰比较级的词
1a bit, a little, rather, much, far, by far, many, a lot, lots, a great deal, any, still, even等
2还可以用表示倍数的词或度量名词作修饰语。
3以上词除by far外，必须置于比较级形容词或副词的前面。
和more有关的词组
1 the more… the more… 越……就越……
The harder you work，the greater progress you'll make.
2 more B than A 与其说A不如说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… 与……一样……，不比……多
The officials could see no more than the Emperor.
no less… than… 与……一样……
He is no less diligent than you.
4 more than 不只是，非常
She is more than kind to us all.
一些容易混淆的介词
1.表示时间的'at、on、in的用法区别
at主要表示：
1在某具体时刻之前，如at seven o’ clock，at 7：30。
2在固定短语中，如：at noon，at night，at that time，at the age of at the weekend，at Christmas。
On用来表示“在……天”，如：On Monday，On May lst，On Children’s Day。
in用来表示：
1在某年、某月、某季节。
2在—段时间之后，如：in two hours，in a few days。
注意：在纯粹地表示在上午/下午/晚上时，用in the morning/afternoon/evening，但在某一天的上午、下午、晚上前要用介词on。如：on Monday morning，on the morning of Children’ s Day。
2. 表示地点的at，in，on的用法区别
1 at通常指小地方，in一般指大地方。
2 at 所指范围不太明确，in指“在……里”。
3 in指在内部，on指“在……之上”。
3.表示“一段时间”的for与since的用法区别
for后面接时间段，since之后接时间点。
4.表示时间的before与by的用法区别
before与by都可表示“在……之前”，但by含有“不迟于……”、“到……为止”的意思。如果by后是将来的时间，则与将来时连用，若by后是过去的时间，则与过去完成时连用。 5.over与aboveunder与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还可表示温度、水位等“高于”，over还可表示“越过……”。over的反义词是under，above的反义词是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，用身体的部位或器官;by表示使用的方法、手段;in指使用某种语言。如：We see with our eyes. We go there by bike.
Please say it out in English. He cut it open with a knife.
【介词】
介词的省略
表示时间介词at, on, in 的省略
1 在 next, last, this, these, today, yesterday, tomorrow, one, every, each, all等词前,一般不用 at, in, on.
2 在某些名词词组前,可以省略也可不省如: on that day, inthe year before last
常见搭配
1.动词+介词，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.形容词+介词，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.名词+介词 / 介词+名词
key to, visit to, at home, in surprise, after class, for ever, on time, at last, at first, for example...