3）独立主格结构多以逻辑主语＋分词的形式出现。
4）情态动词多与完成时形式连用。
5）定语从句重点考查介词＋关系代词（which）和as作为关系代词。
4．词汇的考查重点为
1）动词，名词与介词的搭配如：popular／patient＋with；yield／solution／adapt／transfer／access＋to；accuse／require＋of；charge＋for；under＋discussion等等。
2）习惯用法如：confess to／set about／be used to＋doing；
be supposed to／have／make sb．＋do等。
3）由同一动词构成的短语如：come，go，set，break等构成的短语。
4）单个的动词，抽象名词，形容词和副词多以近义词、同义词的形式出现。
5）介词短语在句中作状语如：in terms of；with the exception of；in vain等，另外还应注意rather than，other than，such as，none／nothing＋but等词在考题中的出现。
5．近年来考题中的新趋势为：若干考点混合出现：一些交际用语也时常出现在考题中。
附：历年四级考试语法题选

一 虚拟语气考查点

essential , important 等词后的虚拟语气； 1) It was essential that the application forms___ back before the deadline （90年1月四级考试.）
A must be sent B would be sent C be sent D were sent（答案是C）
2) It is vital that enough money ___ to fund the project . （97年1月四级考试.）
A is collected B be collected C must be collected D can be collected （答案是C）

if only ,wish等词后的虚拟语气； 1) Look at the terrible situation I am in ! If I ___ your advice . （93年6月四级考试.）
A follow B had followed C would follow D have followed （答案是B）
2) I wish I ___ longer this morning ,but I had to get up and come to class. （95年6月四级考试.）
A have slept B slept C might have slept D could have slept （答案是D）

条件从句中的虚拟语气
1) H e must have had an accident , or he ___ then （90年1月四级考试.）.
A would have been here B should be here C had to be here D would be here （答案是A）

二 动词的 ing 形式和过去分词
分词的独立结构
1）名词 （代词）+ 分词
A new technique ______, the yields as a whole increased by 20 per cent. (90/1)
A） working out C) having been worked
B) having worked out D) to have been worked out (C)
With + 名词（代词）+ V--ed或V--ing