在学习初中英语的过程中, 同学们常会犯这样那样的错误, 大多数同学认为这些错误纷繁复杂, 无章可循, 其实并非如此。为便于系统复习, 现将中考高频考点，或者说把同学们常犯的错误进行分类详解, 希望对大家能有所警示与启迪。
I. “蛇足”类错误例析
“蛇足”类错误就是“画蛇添足”，在句中出现一些原本没有或本应省略的成分。
例1.
Though traveling by air is fast and comfortable, but it costs too much money. (×)
Traveling by air is fast and comfortable, but it costs too much money. (√)
Though traveling by air is fast and comfortable, it costs too much money. (√)
例2.
Because he was ill yesterday, so he didn’t go to work. (×)
Because he was ill yesterday, he didn’t go to work. (√)
He was ill yesterday, so he didn’t go to work. (√)
[析] 用though, but表示“虽然……，但是…… ”或用because, so 表示“因为……，所以……”时，though和but 及because和so 都只能择一而用，不能两者同时使用。
例3.
More than three hundreds people died in the oil well accident in Chongqing in 2003.（×）
More than three hundred people died in the oil well accident in Chongqing in 2003. (√)
[析] hundred, thousand, million, billion等词前有具体数词修饰用来表示“确数”时，无论数词大小，hundred等词都要用单数形式。
例4.
My English teacher is a 38-years old man. (×)
My English teacher is a 38-year-old man. (√)
[析] 句中的38-years-old是由数词、名词和形容词一起构成的复合形容词，在句中充当定语，修饰名词man。复合形容词作定语时, 其中的名词要用单数形式, 且各词之间要有连字符“-”。
例5.
The Smiths have moved Beijing. (×)
The Smiths have moved to Beijing. (√)
[析] 不及物动词后接名词或代词作宾语时，要在...