新四级 新题型要求更高 大学英语四级考试在圣诞节的前一天落下了帷幕，针对这次考试，新浪网作了一项网上调查，结果显示，考生中大约有75.34%的同学认为太难了...

11.15 过去完成时 1） 概念：表示过去的过去----|-------|-----|----其构成是had +过去分词构成。那时以前 那时 现在 2） 用法 a. 在told, said, knew, heard, thought等动词后的宾语从句。 She said (that) she had never been to Paris. b.…...

2.5 冠词位置 1) 不定冠词位置 不定冠词常位于名词或名词修饰语前。注意： a. 位于下列形容词之后： such，what，many，half， I have never seen such an animal. Many a man is fit for the job. b. 当名词前的形容词被副词as, so, too, how, …...

19.7 让步状语从句 though, although 注意： 当有though, although时，后面的从句不能有but，但是 though 和yet可连用 Although it's raining, they are still working in the field. 虽然在下雨，但他们仍在地里干活。 He is very old, but he still…...

19.2 方式状语从句 方式状语从句通常由as, (just) as…so…, as if, as though引导。 1） as, (just) as…so…引导的方式状语从句通常位于主句后，但在(just) as…so…结构中位于句首，这时as从句带有比喻的含义，意思是"正如…"，"就像"，多用于正式…...

11.28 时态与时间状语 时间状语一般现在时 every …, sometimes, at …, on Sunday, 一般过去时 yesterday, last week, an hour ago, the other day, in 1982, just now一般将来时 next…, tomorrow, in+时间, 现在完成时 for, since, so…...

3.20 few, little, a few, a little (a) few + 可数名词, (a) little + 不可数名词 a few / a little 为肯定含义，还有一点 few / little 为否定含义，没有多少了。 He has a few friends. 他有几个朋友。 He has few friends. 他几乎没有朋友。 …...

19.9 比较until和till 此两个连词意义相同。肯定形式表示的意思是"做某事直至某时"，动词必须是延续性的。否定形式表达的意思是"直至某时才做某事"。动词为延续性或非延续性都可 以。 正确使用这两个连词的关键之一就在于判断句中的动词该用肯定式还…...

19.4 目的状语从句 表示目的状语的从句可以由that, so that, in order that, lest, for fear that, in case等词引导，例如： You must speak louder so that /in order that you can be heard by all. He wrote the name down for fear that(les…...

16.4 虚拟条件句的倒装 虚拟条件句的从句部分如果含有were, should, 或had, 可将if省略，再把were, should或had 移到从句句首，实行倒装。 Were they here now, they could help us. =If they were here now, they could help us. Had you come ea…...