pep小学六年级四种时态汇总
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第一节现在进行时态
一、概念
表示正在发生的事情或动作,常和now,look,listen连用。如:We are listening to music now.我们现在正在听音乐。Listen! He is playing the piano. 听!他正在弹钢琴。
二、句子结构
1.be + 动词现在分词(即:动词-ing形式),be + doing 是一个整体,不能分开。
2.be 随着主语的变化而变化,doing的变化规则根据现在分词的变化规律来定。
三、动词现在分词的构成规律
1.一般情况下,在动词原形后直接加-ing;如:work→working do→doing play→playing 2.以不发音字母e结尾的动词,先去掉e,再加-ing;如:dance→dancing come→coming 3.在重读闭音节(即:辅音+元音+辅音)的动词中,要先双写末尾的辅音字母,再加-ing;
如:get→getting shop→shopping run→running swim→swimming 4.以ie结尾的重读闭音节词,将ie改成y再加ing。如:lie→lying die→dying
四、现在进行时的各种句式变化
1.否定句
方法:直接在be的后面加not。如:They are running.→They are not running.
2.一般疑问句
方法:直接把be放在主语的前面,其余位置不变。如:They are running.→Are they runnin?
3.特殊疑问句
方法:如果就划线部分提问事情或动作时,用What…doing?
如:They are swimming in the sea now.→What are they doing in the sea now?
第二节一般现在时态
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:always, usually, often, sometimes, seldom(很少), never(决不), every day, at 8:30, on Sunday,in the morning等。
如: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 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。
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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”;
如:work→works play→plays¬ rain→rains see→sees visit→visits
2.以o, x,s,sh, ch结尾的动词,在后面加“es”;
如:do→does fix→fixes guess→guesses wash→washes teach→teaches
3.以辅音字母加y结尾的动词,先把“y”改为“i”, 再加“es”;
如:fly→flies study→studies carry→carries
4.不规则变化。如:have→has
四、注意
在一般现在时的句子中,如果前面使用了助动词does, doesn’t, will, won’t, can, can’t, would, wouldn’t, must, mustn’t 等,尽管主语是第三人称单数,后面的动词用动词原形。
如:He doesn’t 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 don’t.
如:They go to school by bus every day.
→Do they go to school by bus every day?
→Yes, they do.(肯定回答)→No, they don’t.(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 doesn’t.
如:He often goes to school by bike. →Does he often go to school by bike?
→Yes, he does. (肯定回答)→No, he doesn’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don’t。
如:We always go to school on foot. →We don’t always go to school on foot.
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第三人称单数形式,改为动词原形。
如:He often goes to school by bike. →He doesn’t often go to school by bike.
第三节一般将来时态
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