一般现在时
表示现在经常性,习惯性,永久性的动作或存在的状态.通常与副词sometimes, often, usually, always, every day (year, month ), once (twice, three times) a day,等时间状语连用。
They usually go to school by bike.
他们常常骑自行车去学校。
She helps her mother once a week.
她帮助她的妈妈一周一次。
表示客观真理,科学原理,自然现象,等客观事实或格言,谚语等。
The sun rises in the east and sets in the west every day.
每天太阳从东方升起,西方落下。
Tomorrow is Tuesday.
明天是周二。
用法:
若是需要的动词是be动词“是”主语是第三人称单数(he,she,it,不可数名词,可数名词单数)用is,其他主语用are,I 用am
若是需要其他动词
只有在主语第三人称单数(he,she,it,不可数名词,可数名词单数)用动词的“三单变化”和其他用动词的原形。
三单变化:
1.多数在动词后+s play — plays like — likes
(1)直接在动词词尾加-s.
ask---asks work---works get---gets stay---stays
(2)以字母s, x, ch, sh或o结尾的动词,在词尾直接加-es.
watch---watches wish---wishes fix---fixes do---does
go---goes pass---passes
(3)以“辅音字母加 - y”结尾的动词,要先变y为i再加-es.
try---tries study---studies cry---cries fly---flies
2.不规则变化:
be---- is are have----has
句子变化
(1)当句子中有be动词或情态动词(can,should..)时,则把be动词或情态动词(can,could等等)提到主语的前面变成疑问句;在be动词或情态动词后面加not变成否定句.
例:①陈述句:She is a student.她是一个学生。
疑问句→ Is she a student? 她是一个学生吗?
否定句→ She is not a student.她不是一个学生。
②陈述句:I can swim.我会游泳
疑问句→ Can you swim?你会游泳吗?
否定句→ I can not swim.我不会游泳。
(2) 当句子中即没有be动词,也没有情态动词时,也就是其他实意动词,则在主语前加助动词do (you,I,we,they以及名词复数), does(不可数名词,可数名词单数she,he,it)变成问句;在主语后谓语动词前加助动词don’t(you,I,we,they以及名词复数), doesn’t(不可数名词,可数名词单数she,he,it)变成否定句,助动词后的动词要变成动词原形。
例:①陈述句:We get up at 7:00 every morning.
疑问句→Do you get up at 7:00 every morning?
否定句→We don’t get up at 7:00 every morning.
②陈述句:She has a little brother.(have是原形,has是三单形式用的)
疑问句→ Does she have a little brother?
否定句→ She doesn’t have a little brother.
She _________ (go) to school at seven o’clock.
Amy _________ (be) here just now.
My father __________ (watch) TV every evening .
They _________ (like) the World Cup?
I _________ (be) ill. I’m staying in bed.
Mike has two let