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1、使用 than 的常见语法难点一、后接人称代词用主格还是宾格由于than既可用作连词也可用作介词，所以当后接人称代词时，可用主格也可用宾格。通常认为在正式文体中多用主格，在口语或非正式文体中多用宾语。如：Everyone here is taller than I me. 这儿的每一个人都比我高。Her sister swims faster than she her. 她姐姐游泳比她快。但是，若人称代词之后跟有动词，则只能用主格。如：Everyone here is taller than I am. 这儿的每一个人都比我高。Her sister swims faster than she
2、does. 她姐姐游泳比她快。注意：有时用主格或宾格会导致意思的变化。比较：I love you more than he (likes you). 我比他更爱你。I love you more than (he likes) him. 我爱你胜过爱他。二、后接动词用不定式还是动名词1. 当连接两个非谓语动词时，通常应使用一样的形式。如：It is much easier to get into debt than to get out of it. 借债容易还债难。He likes playing chess more than watching TV. 与看电视相比，他更喜欢下棋。比较：H
3、e thinks it is safer to drive himself than (to) let me drive. =He thinks that driving himself is safer than letting me drive. 他认为他自己开车比让我开车要更安全些。2. 若不是连接两个非谓语动词，则其后出现的动词通常用动名词形式(虽然也可用不定式，但不如用动名词普通)。如：There are worse calamities than failing your driving test. 比起你驾驶考试不合格来说，更大的灾难还多着呢。Nothing gives me m
4、ore pleasure than listening to Mozart. 再没有比听莫扎特的乐曲更让我高兴的事了。 Nothing is more unpleasant than finding to find insects in your bath. 最使人不快的是在浴室里发现有虫子。 三、引导比较状语从句的时态问题若than引导的比较状语从句与主句动作不一致，可以根据情况使用适当的时态形式。如：He drives faster than he did a year ago. 他开车比一年以前快了。 The house is rather bigger than we thought.
5、 这所房子比我们想的大得多。 若主句为将来时，than引导的从句可用现在时态表示将来，也可直接使用将来时态。如：Well probably drive faster than you do will. 我们开车可能会比你们快。 四、引导比较状语从句的倒装问题than引导比较状语从句时，从句语序通常不需倒装，但在正式文体中，有时也可倒装。如：City dweller have a higher death rate than country people do. =City dweller have a higher death rate than do country people. 城市居民
6、死亡率比农村居民高。 五、引导比较状语从句且在从句中充当成分有时可引导一个从句并在从句中充当句子成分(主语、宾语、表语)，为便于理解，有时可视为than后省略了what：We dont want to do more than is necessary. 我们不想做不必要的事情。The pain was almost more than he could bear. 这样的痛苦几乎使他受不了。Shes not a very good manager she always spends more money than she earns. 她不大会理财总是入不敷出。 Life here is m
7、uch easier than it used to be. 如今在此地生活比起从前可舒服多了。比较下面一句，than后的expected为省略结构：He returned three days earlier than (he was) expected. 他回来得比预料的要早三天。六、后接时间或条件状语从句若语义需要，有时其后可接when引导的时间状语从句以及if 引导的条件状语从句。如：You are a little fatter than when I saw you last. 你比我上次见你时胖点了。 Joe carries only nine pounds more than
8、when he was twenty. 乔比他20岁时只重了九磅。 They work better together than if they are alone. 他们一起干比他们单干效果要好。七、同质比较还是异质比较than 通常用于两个不同的人或物在同一方面进行比较，但有时指的可能是同一个人或物在两个不同的方面进行比较，此时只用于morethan结构，而不能用 erthan的形式(即使是单音节也是如此)，这类结构通常可译为“与其不如”“有无”。如：Hes more fat than short. 与其说他矮不如说他胖。They are more brave than wise. 他们有
9、勇无谋。If we tell him about it, it may do more harm than good. 倘若我们把情况告诉他，那可能弊多利少。八、与never (a) 连用时如何理解有时than与带有never (a) 的比较级结构连用，表示强调，通常表示最高级的含义。如：Ive never had a worse morning than today. 我哪一天早上也不像今天早上这样倒霉。 若意思明确，有时可省略than结构。如：He is fine, never better. 他很好，比以往任何时候都好。Ive never seen a finer bird. 我从未见过
10、比这更美的鸟。Ive never found a better job. 这是我找到的最好的工作。九、than any other后接名词用单数还是复数than any other后接名词时通常用单数形式，很少用复数。如：He swims faster than any other student in his class. 他比班上的其他任何学生都游得快。More heat is lost through the head than any other part of the body. 从头部散发的热量比身体的其他任何部位都多。十、几组容易理解出错的than习语1.“no +比较级+tha
11、n”与“not +比较级+than”(1) “no +比较级+than”用于否定两者，表示“与一样不”，其义大致相当于其中形容词或副词的反义词用于asas结构。如：He is no richer than a beggar.=He is as poor as a beggar. 他穷如乞丐。This one is no better than that one.=This one is as bad as that one. 这个与那个一样不好。(2) “not +比较级+than”的意思是“不比更”“不如”。如：He is not richer than you. 他不如你富有。This o
12、ne is not better than that one. 这个不如那个好。2. no less than, no less.than 与 not less than(1) no less than 有两个意思：一是表示“多达”“有之多”，强调数量之多；二是表示“简直”“与没有差别”。如：We walked no less than three miles. 我们走了三英里之远。We won no less than 500 in a competition. 我们在一次比赛中就赢了500英镑。It is no less than robbery to ask for so much. 要
13、这么多，简直跟抢劫没什么两样。(2) no less.than 意为“与一样”“不比差”，强调两者具有同等性。如：He is no less wise than you. 他跟你一样聪明(他并不比你笨)。A dolphin is no less a clever animal than a dog is. 海豚与狗同样都是聪明的动物。(3) not less than 意为“不下于”“至少”。比较：He has no less than seven daughters. 他有七个女儿之多。He has not less than seven daughters. 他至少有七个女儿。3. no
14、more than, no morethan与not more than(1) no more than表示“仅仅”“只有”“只不过”，强调程度低或数量少。如：He is no more than an ordinary English teacher. 他只不过是个普通的英文老师。He has no more than three shirts. 他只有3件衬衫。(2) not more than 表示“至多”，与at most同义。如：He has not more than three shirts. 他最多只有3件衬衫(含有或许还不到3件之意)。(3) no more.than 表示对
15、两者都否定, 意为“既不也不”“同一样不”。如：He is no more a writer than a painter. 他既不是画家，也不是作家。A whale is no more a fish than a horse is. 如同马不是鱼一样，鲸也不是鱼。more than 1. 表示“比多”“比更”。如：It was more expensive than I thought. 这比我预料的昂贵多了。Tim violin is more difficult than the piano. 拉小提琴比弹钢琴更为困难。John drove much more carefully than Tim did. 约翰开车比吉姆小心得多。注：more有时不用于构成比较级，而是本身就是比较级，此时其后可能接可数或不可数名词。如：His car cost much more money than mine. 他的小汽车所花的钱比我的多得多。There are many more people than we expected. 比我们想象的人要多得多。2. 表示“与其不如”。如：He is more lucky than
