2013高考英语备考：necessary 用法说明
necessary necessary主要用于两种句型：①It’s necessary for sb. to do sth.某人有必要做某事②It’s necessary that…有必要……。注意：that从句中谓语用should + 动词原型，should 可省略。另外：不能使用sb. is necessary to do 结构，因为通常是“某事或做某事有必要”，而非人有必要。误：He is necessary to return home this afternoon. 正：It’s necessary for him to return home this afternoon. [应用]汉译英 ①他有必要改进自己的学习方法。 ②有必要的话，我们可以多雇几个人收庄稼。 Key: ①It’s necessary for him to improve his method of study:/It’s necessary that the should improve his method of study。 ②If necessary,we’ll employ more men for t... [ 查看全文 ]2013高考英语备考：necessary 用法说明的相关文章
2013高考英语备考：must + have + 过去分词用法说明
must + have + 过去分词 表示推测过去某动作“一定发生了”。如： —They quarrelled quite often and whenever they quarrelled they threw glasscup at each other. —They must have broken a lot of glasses. 文章相关链接：www.liuxue86.c...[ 查看全文 ]
