小学英语语法时态一般现在时详解

1、小学英语语法时态一般现在时详解一、概念1表示经常性或习惯性的动作，常与表示频度的时间状语连用。如：al ways, usually, often, sometimes, seldo（很少）,never（决不）,every day, at 8:30,on Sun day,i n the mor ning等。女口：I always get up at 6:00 in the morning.2表示现在时刻的状态、能力、性格、个性。如：She loves English very much. My sister can play the piano very well.3表示客观的事实。如：The

2、sun rises in the east.太阳从东方升起。4格言或警句。如：Pride goes before a fall.骄者必败。二、句子结构1如果句子主语的人称是I, we, you, they或复数名词时，动词用动词 原形。如：We often go home by bus.2如果句子的主语是第三人称单数，即：he, she, it或单数名词时，动词要用第三人称的单数形式。如：He often goes home by bus三、动词的第三人称单数构成规则1一般情况下在动词的后面直接加“s”；女口：work f works playplays? rainrai ns see see

3、s visits visits2.以o, x,s,sh, ch结尾的动词，在后面加“es”女口：dof does fiifixes guesAguesses washwashes teachteaches3.以辅音字母加y结尾的动词，先把“y”改为“i”,再加“es”;如：flyfflies studyfstudies carryfcarries4不规则变化。 如：havefhas四、注意在一般现在时的句子中，如果前面使用了助动词does, doesnt, will, won t, can,cant, would, wouldnt, must, mustnt等，尽管主语是第三人称单 数，后面的

4、动词用动词原形。如：He doesnt want to go shopping. He can sing the song.五、一般现在时的一般疑问句 一般现在时的一般疑问句是把助动词do,或does放在句首来引导。1、 如果句子的主语是I, we, you, they或复数名词时，用do来引导，其 余句子的位置不变。肯定回答：Yes, I/we/they do.否定回答：No, I/we/they dont.如：They go to school by bus every day.fDo they go to school by bus every day?fYes, they do.（肯定

5、回答）fNo, they dont.（否定回答）2、如果句子的主语是he, she, it或单数名词时，用does来引导， 其余 句子的位置不变， 但是要把原来句子中的动词第三人称单数形式， 改为动词 原形。肯定回答：Yes, he/she/it does.否定回答：No, he/she/it doesnt.如：He often goes to school by bike.fDoes he often go to school by bike?fYes, he does.（肯定回答）fNo, he does t.（否定回答）六、一般现在时的否定句1 如果句子的主语是I, we, you, they或复数名词时， 则在主语的后面 加dont。女口：We always go to school on foot. We dont always go to school onfoot.2.如果句子的主语是he, she, it或单数名词时，则在主语的后面加doesn t。但是要把原来句子中的动词