KET必会语法
一、一般现在时
时间状语：always, usually, often, sometimes, every week /day/ year/ month, once a week, on Sundays
动词形式：
1. am/is/are“是”
2. 实义动词，需注意第三人称单数
1）直接在动词后加s work--works
2) 以ss, o,x,ch,sh结尾的动词加es
guess--guesses, go--goes, fix--fixes watch--watches, wash--washes
3)以辅音字母加y结尾的动词把y变成i再加es cry--cries study--studies
4)不规则：have--has
eg: He doesn’t speak good English.
二、一般过去时
时间状语：three days ago, yesterday, the day before yesterday, last week/year/night/month, in 1989, just now, at the age of 5
动词形式：
1. was/were “是”
2. 实义动词，需注意使用一般过去式
1)一般情况下，动词词尾加-ed ，如：work --worked play--played want--wanted
2)以不发音的-e 结尾动词，动词词尾加-d，如：live--lived move--moved taste--tasted
3)以辅音字母+ y结尾的动词，把-y变为-i 再加-ed，如：study--studied copy--copied
4)以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加-ed，如：stop --stopped
5)不规则动词的过去式变化规律性不强，须多加记忆。
go--went make--made get--got buy--bought come--came fly--flew begin--began write--wrote leave--left have--had read--read cut--cut cost—cost spend--spent
eg: He didn’t speak good English before.
三、一般将来时
时间状语：tomorrow, this morning/afternoon/evening, tonight, next year, one day, soon, someday, sometime, in the future, when引导的从句等
动词形式：
1. 主语+am/is/are going to+动词原形
2. 主语+will+动词原形
eg: It’s going to rain soon.(天快要下雨了)
He will get better.