一般現(xiàn)在時(shí)講解與練習(xí)

1、般現(xiàn)在時(shí)Prese nt Tense一、概念：表示通常性、規(guī)律性、習(xí)慣性的狀態(tài)或者動作（有時(shí)間規(guī)律發(fā)生的事件）的一種時(shí)間狀態(tài)。拆開來講就是：時(shí)間：指動作發(fā)生在 現(xiàn)在”的時(shí)間段內(nèi)。那么，多長的時(shí)間才叫現(xiàn)在”呢？ 一天？狀態(tài)：一般現(xiàn)在時(shí)最容易迷惑的一個問題，就是拿不準(zhǔn)什么叫經(jīng)常發(fā)生的動作或存在的狀態(tài)”？這個問題要分三層來講：1. 經(jīng)常發(fā)生的動作”，比如每天起床、吃飯、上學(xué)，一個星期去幾次超市或新華書店等。這些事件中，有的 是有規(guī)律的，有的是偶爾做幾次。這些都算經(jīng)常發(fā)生的事件。我們要告訴人們的，是這個動作經(jīng)常發(fā)生，是一般的情況而不是具體的某一次。2. 事物存在的狀態(tài)。3. 有些動作或狀態(tài)是永恒的，比

2、如長江向東流、地球繞著太陽轉(zhuǎn)，比如諺語中舉的事例、文學(xué)作品中描繪 的事例，像 好馬不吃回頭草”等等二、基本用法：1表示經(jīng)常性或習(xí)慣性發(fā)生的動作。如：I always get up at 7 olock in the morning.我總是在早上7點(diǎn)起床。We ofte n read books at school.我們在學(xué)校經(jīng)?？磿hey usually have dinner at 6:00 in the eve ning.他們通常在晚上6點(diǎn)吃晚餐。2. 表示現(xiàn)在的狀態(tài)或特征。如：She loves En glish very much.她非常愛英語。We are always at h

3、ome on weeke nds.周末我們總留在家。Tom is an exelle nt player.湯姆是一位優(yōu)秀的運(yùn)動員。3. 表示客觀的現(xiàn)實(shí)。如：The sun rises in the east.太陽從東方升起。Summer comes after spri ng.夏天在春天的后面4. 用在按計(jì)劃、規(guī)定或安排發(fā)生的事情。如：The pla ne leaves at 9:30.飛機(jī)9點(diǎn)30分起飛。Tomorrow is Sun day.明天是星期天。三、時(shí)間特征通常句子伴有下列時(shí)間狀語，如：often （經(jīng)常）usually （經(jīng)常），on Mondays（在周一），every da

4、y （每一天），in the morning （在早上），in the after noon （在中午），in the eve ning （在晚上），on weeke nds（在周末），at 8:30 （在 8 點(diǎn) 30 分）等。四、句子結(jié)構(gòu)1. 如果句子主語的人稱是I, we, they, you或復(fù)數(shù)名詞時(shí)，動詞用動詞原形。We ofte n go home by bus.I ofte n play football on weeke nds.They usually watch TV in the eve ning.You ofte n have lunch at 12 6clock.M

5、ike and Tom usually do homework together in the after noon.Mon keys ofte n climb trees up and dow n.2. 如果句子的主語是第三人稱單數(shù)，即：he, she, it或單數(shù)名詞 時(shí)，動詞要變化，一般在動詞詞尾+S。She ofte n goes home by bus.He ofte n plays football on weeke nds.Amy usually watches TV in the eve ning.My father ofte n has lunch at 12 oclock.

6、Tom loves his cat. It ofte n sleeps.五、動詞的第三人稱單數(shù)的變化規(guī)律：A. 一般在動詞的后面直接加“ S”。如：eat wait liste n love work B. 如果動詞是以“ x, s, sh, ch, o”等字母結(jié)尾時(shí)，則要加“ es”。如：watch go do guess wash C. 如果動詞結(jié)尾是“ y”，如果y前面是元音字母（a, e, i, o, u），就直接加“ s”，如果不是y前面不是元音字母，就要把“ y”改為“ i”再加“ es”。play buy try -study -fly -練習(xí)、把下列動詞改為第三人稱單數(shù)的形式1

7、. do2. read3. catch4. wash5. fly6. go7. have8. use9. cross10. study11. get12. ask13. teach14. liste n15. feel16. buy17. touch18. pass19. like20. come二、選擇填空。I. 1 (have, has) lunch at school.2. They (do, does) homework in the classroom.3. He often (have, has) breakfast at school.4. The dog (have, has)

8、 four legs.5. The rabbit (like, likes) carrots.6. My father and mother (have, has) tofu and pork for lunch.7. Mike and Tom ofte (go, goes) to school at seven.8. She usually (go, goes) shopping on Saturdays.9. My little brother often (read, reads) books in the evening.10. You and I (have, has) beef f

9、or dinner.II. Amy always (watch, watches) TV on weekends.12. Dick and Peter (love, loves) their new teachers.13. My grandma often (do, does) sports after dinner.14. Fishes (live, lives) in the water, and birds (live, lives) in thetree.15. A rabbit (have, has) two long ears.三、選擇1. 10. Hefor eight hou

10、rs every day.A. worki ng B. to work C. works D. worked2. The picturen ice.A. looks B. is looked C. look D. is looki ng3. Shedow n and soon falls asleep.A. live B. la in C. laid D. sits4. Theythe office in time very morni ng.A. reach to B. arrived C. went D. get to5. We shall go to Shan ghai on bus in ess before youback next week.A. will come B. came C. would come D. come6. The pla neover there.A. is B. are C.am D. was7. I see herthe room this morni ng.A. to en ter B. en teredC. en terD. en ters8. The teacherus to come to schoo