一、一般現(xiàn)在時(shí)的功能
1.表示事物或人物的特征、狀態(tài)。如：The sky is blue.天空是藍(lán)色的。
2.表示經(jīng)常性或習(xí)慣性的動(dòng)作。如：I get up at six every day.我每天六點(diǎn)起床。
3.表示客觀現(xiàn)實(shí)。如：The earth goes around the sun.地球繞著太陽(yáng)轉(zhuǎn)。
二、一般現(xiàn)在時(shí)的構(gòu)成
1.be動(dòng)詞：肯定句：主語(yǔ)+be(am,is,are)+其它。如：I am a boy. 我是一個(gè)男孩。
2.行為動(dòng)詞：肯定句：主語(yǔ)+行為動(dòng)詞(+其它)。如：We study English.我們學(xué)習(xí)英語(yǔ)。
當(dāng)主語(yǔ)為第三人稱單數(shù)(he, she,it)時(shí)，要在動(dòng)詞后加"-s"或"-es"。如：Mary likes Chinese.瑪麗喜歡漢語(yǔ)。
動(dòng)詞+s的變化規(guī)則
1.一般情況下，直接加-s，如：cook-cooks,
2.以s. x. sh. ch. o結(jié)尾，加-es，如：guess-guesses, wash-washes, watch-watches, go-goes
3.以―輔音字母+y‖結(jié)尾，變y為i, 再加-es，如：study-studies 特殊：have----has
三、一般現(xiàn)在時(shí)的變化
1.be動(dòng)詞的變化。
否定句：主語(yǔ)+ be + not +其它。 如：He is not a worker.他不是工人。
一般疑問(wèn)句：Be +主語(yǔ)+其它。如：-Are you a student? -Yes. I am. / No, I'm not.
特殊疑問(wèn)句：疑問(wèn)詞+一般疑問(wèn)句。如：Where is my bike?
2.行為動(dòng)詞的變化。
否定句：主語(yǔ)+ don't( doesn't ) +動(dòng)詞原形(+其它)。如：I don't like bread.
當(dāng)主語(yǔ)為第三人稱單數(shù)時(shí)，要用doesn't構(gòu)成否定句。如：He doesn't often play.
一般疑問(wèn)句：Do( Does ) +主語(yǔ)+動(dòng)詞原形+其它。如：- Do you often play football? - Yes, I do. / No, I don't.
當(dāng)主語(yǔ)為第三人稱單數(shù)時(shí)，要用does構(gòu)成一般疑問(wèn)句。
如：- Does she go to work by bike? - Yes, she does. / No, she doesn't.
特殊疑問(wèn)句：疑問(wèn)詞+一般疑問(wèn)句?如：How does your father go to work?
初三一般現(xiàn)在時(shí)講解與練習(xí)：
一、出下列動(dòng)詞的第三人稱單數(shù)
drink ________ go _______ stay ________ make ________look _________ be________ read________
have_______ pass_______ carry ____ come________ watch______ plant_______wash________
fly ________study_______ brush________ do______ teach_______ like________ play________
二、用括號(hào)內(nèi)動(dòng)詞的適當(dāng)形式填空。
1.He often ________(have) dinner at home.
2.Daniel and Tommy _______(be) in Class One.
3.We _______(not watch) TV on Monday.
4.Nick _______(not go) to the zoo on Sunday.
5.______ they ________(like) the World Cup?
6.What _______they often _______(do) on Saturdays?
7._____ your parents _______(read) newspapers every day?
8.The girl _______(teach) us English on Sundays.
9.She and I ________(take) a walk together every evening.
10.There ________(be) some water in the bottle.
11.Mike _______(like) cooking.
12.They _______(have) the same hobby.
13.My aunt _______(look) after her baby carefully.
14.You always _______(do) your homework well.
15.I _______(be) ill. I‘m staying in bed.
16.She _______(go) to school from Monday to Friday.
17.Liu Tao _______(do) not like PE.
18.The child often _______(watch) TV in the evening.
19.Su Hai and Su Yang _____(have) eight lessons this term.
20. -What day _____(be) it today?- It‘s Saturday.
三、按照要求改寫句子
1.Daniel watches TV every evening.(改為否定句)
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2.I do my homework every day.(改為一般疑問(wèn)句，作否定回答)
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3.She likes milk.(改為一般疑問(wèn)句，作肯定回答)
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4.Amy likes playing computer games.(改為一般疑問(wèn)句，作否定回答)
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5.We go to school every morning.(改為否定句)
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6.He speaks English very well.(改為否定句)
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7.I like taking photos in the park.(對(duì)劃線部分提問(wèn))
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8.John comes from Canada.(對(duì)劃線部分提問(wèn))_
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9.She is always a good student.(改為一般疑問(wèn)句，作否定回答)
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10.Simon and Daniel like going skating.(改為否定句)
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四、改錯(cuò)(劃出錯(cuò)誤的地方，將正確的寫在橫線上)
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 Sundays. _________________ | 