过去式：
过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为.
2.时间状语：ago,yesterday,the day before yesterday,last week(year,night,month…),in 1989,just now,at the age of 5,one day,long long ago,once upon a time,etc.
3.基本结构：be动词；行为动词
4.否定形式：was/were+not;在行为动词前加didn't,同时还原行为动词.
5.一般疑问句：was或were放于句首；用助动词do的过去式did 提问,同时还原行为动词.
6.例句：She often came to help us in those days.
I didn't know you were so busy.
一般将来时：
表示将要发生的动作或存在的状态及打算、计划或准备做某事.
2.时间状语：tomorrow,next day(week,month,year…),soon,in a few minutes,by…,the day after tomorrow,etc.
3.基本结构：am/is/are/going to + do；will/shall + do.
4.否定形式：was/were + not; 在行为动词前加didn't,同时还原行为动词.
5.一般疑问句：be放于句首；will/shall提到句首.
6.例句：They are going to have a competition with us in studies.
It is going to rain.
形容词比较级的构成形式一般分以下几种：
1、单词末尾加“er”
2、以e结尾的单词末尾加“r”
3、双写闭音节词的末尾字母,再加“er”
双写闭音节词也称为重音节词
4、以辅音字母“y”结尾的词,变“y”为“i”,再加“er”
5、在多音节词的前面加“more”,这种后面不用加“er”.
6、不规则的形容词变化,如：
原形,比较级
good/well,better
bad,worse
many/uch,more
little,less
far,farther/further
没有比较级的形容词有：right,wrong,woolen等.
至于说判断一个形容词究竟是哪类的,这就得靠你将来的累积经验了,一般小学主要学规则的!
注：‘/’表示“或者”
三者或三者以上相比,表示最高程度时,用“ the十最高级”的结构表示．这种句式一般常有表示比较范围的介词短语．例如：
Zhang Hua is the tallest of the three．
He works (the) hardest in his class.
②最高级可被序数词以及 much,by far,nearly,almost,by no means,not quite,not really,nothing like等词语所修饰.例如：This hat is by far／much／nearly／almost／not nearly／by no means/not quite／nothing like the biggest． How much did the second most expensive hat coat?
③表示“最高程度”的形容词,如 excellent,extreme,perfect等,没有最高级,也不能用比较级．
④形容词最高级修饰作表语或介词宾语的名词、代词时,被修饰的词往往省略．
He is the tallest(boy) in his class．
⑤作状语的副词最高级前可以不加定冠词．例如
0f all the boys he came(the) earliest．
