语法[一般现在时]
语法专项--一般现在时
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、动词的第三人称单数形式的构成规则如下:
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
三、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.
四、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.
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→Does he often go to school by bike?
→Yes, he does. (肯定回答)
→No, he doesn’t. (否定回答)
五、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.
相关练习题
一、写出下列动词的第三人称单数形式。
1.drink 11.buy 21.pass
2.stay 12.say 22.watch
3.make 13.move 23.brush
4.look 14.read 24.teach
5.come 15.play 25.catch
6.plant 16.help 26.wash
7.sit 17.ask 27.carry
8.eat 18.like 28.fly
9.run 19.go 29.study
10.begin 20.do 30.have
二、用do does填空。
1._____ you ride a bike after school? Yes, I _______ .
2.______ your sister like P.E.? No, she ______ not.
3.What ______ the students have? They have some pens.
4.How _____ Linda go to school? She goes to school on foot.
5.He ______ not speak English. He speaks Japanese.
6.______ they watch TV on Sundays? Yes, they ______ .
7.My father and mother ______ not read newspapers on Saturday.
三、用动词的适当形式填空。
1.He often ________(have) dinner at home.
2.We _______(not watch) TV on Monday.
3.Tom _______(not go) to the zoo on Sunday.
4.What _______(do)they often _______ on Saturday?
5._______(do) your parents _______(read) newspapers every day?
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6.The girl _______(teach) us English on Sunday.
7.Mike _______(like) cooking.
8.You always _______(do) your homework well.
9.She _______(go) to school from Monday to Friday.
10.The child often _______(watch) TV in the evening.
11.What ______ (do) he _____ (have)? He ________ (have) a toy plane.
12.My mother ________ (do) not________ (like) English. She _______ (like) Chinese.
13. ______ (do) you ______ (go ) to school by bus? No, I _____ (go) to school by bike.
14.Miss Wang ______ (swim ) every day.
15.I _____ (like) English . Tom ______ _______ _______(not like ) English.
16.The moon ______ (go) around the earth.
17.When _____ (do) you _______ (go ) to school? I _____ (go) to school at six thirty every day.
四、改错(圈出错误的地方,将正确的答案写在横线上) 。
1.Is your brother speak English? __________________
2.Does he likes going fishing? __________________
3.He likes play games after class. __________________
4.Mr Wu teachs us English. __________________
5.She don’t do her homework on Sunday. _________________
五、按照要求改写句子。
1.Mike watches TV every evening.(改为否定句)
2.I do my homework every day.(改为一般疑问句,作否定回答)
3.Amy likes playing computer games.(改为一般疑问句,作否定回答)
4.She likes milk.(改为一般疑问句,作肯定回答)
8.对划线部分提问)
9.对划线部分提问)
10.对划线部分提问)
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