小學(xué)英語動詞的單三形式講解第五次講義-

1、一小學(xué)英語動詞的單三形式講解大家都知道,在一般現(xiàn)在時(shí)中,當(dāng)主語是第三人稱單數(shù)時(shí),謂語動詞要用第三人稱單數(shù)形式,即常在動詞原形后加-s或-es。但有些同學(xué)們對于哪些主語是第三人稱單數(shù)還不十分清楚,現(xiàn)歸納總結(jié)如下:一、人稱代詞he, she, it是第三人稱單數(shù)。如:He likes watching TV. 他喜歡看電視。She has lunch at twelve. 她十二點(diǎn)吃午餐。It looks like a cat. 它看起來像只貓。二、單個人名、地名或稱呼作主語;是第三人稱單數(shù)。如: Han Mei looks like her mother. 韓梅看起來像她的母親。 Beijing

2、 is in China. 北京在中國。 Uncle Wang often makes cakes. 王叔叔經(jīng)常做蛋糕。三、單數(shù)可數(shù)名詞或"this / that / the+單數(shù)可數(shù)名詞"作主語時(shí),是第三人稱單數(shù)。如: A horse is a useful animal. 馬是有用的動物。 This book is yours. 這本書是你的。 That car is red. 那輛小汽車是紅色的。 The cat is Lucy's. 這只貓是露茜的。四、不定代詞someone, somebody, nobody, everything, something等

3、及指示代詞this, that作主語時(shí),是第三人稱單數(shù)。如: Everyone is here. 大家到齊了。 There is something wrong with the watch. 這塊手表有毛病。 This is a pen. 這是一支鋼筆。 That is an eraser. 那是一塊橡皮擦。五、不可數(shù)名詞作主語時(shí)為第三人稱單數(shù)。如: The milk is in the glass. 牛奶在玻璃杯里。 The bread is very small. 那面包很小。六、當(dāng)數(shù)字或字母作主語時(shí),看作第三人稱單數(shù)。如:"6" is a lucky number.

4、 "6"是個吉利數(shù)字。"I" is a letter. "I"是個字母。第三人稱單數(shù)形式的構(gòu)成1.一般直接在詞尾加s,如:work-works live-lives make-makes2.以s,x,ch ,sh等結(jié)尾的單詞加es , 如:miss-misses fix-fixesfinish-finishes teach-teaches3.以輔音字母加y結(jié)尾的單詞,變y為i加es , 如:fly-flies4.以輔音字母加o結(jié)尾的單詞,加es 如: go-goes do-does動詞單三的練習(xí)三寫出下列動詞的第三人稱單數(shù)。go do

5、play jumpswim runput singdance comeget havefly studyread writelook drinkeat walk一. 根據(jù)括號里單詞的適當(dāng)形式填空1. She _ (be a writer.2. It _(look like a monkey.3. We_(go to the park.4. He _(go to school.5. Amy_(like eating fruits.6. Hebei_(be next to Shandong.7. Our teacher _(be talking with John.8. Whose book _(

6、be this ?9. Dogs _(be our friends .10. That blackboard _(be clean.11. The desk _(be Toms.12. Somebody _(do her homework .13. Everybody _(is ok!14. Nobody _ (be in the park .15. There _(besomeone in the classroom .16. That cat _(be mine .17. A little water _(be in the cup.18. Cheese _(tastewell .19.

7、The letter “O” _(look like zero.20. “4” _(be a bad number in China .二. 把下列句子改成第三人稱單數(shù)句的肯定句、否定句、一般疑問句,并做回答。1. I like playing the pinao in the music room . (Tom2. You need a pencil-box for new term . (Sams sister.3.I do my homework at half past four in the afternoon . (she.4. I have breakfast at twenty

8、-five past seven in the morning . (her father .5. I watch TV at quarter past six with my parents . (Toms sister.二小學(xué)英語所有句型轉(zhuǎn)換的方法基本助動詞只有三個:be, do, have, 他們沒有詞匯意義,只有語法作用,如協(xié)助構(gòu)成進(jìn)行體,完成體,被動態(tài),否定句,疑問句等。一、肯定句改否定句的方法一步法1、在be動詞后加not。如:is not ,are not ,am not,was not,were not;2、在can,should,will等后加not。如:cannot,sho

9、uld not,will not;3、上述都沒有的,在動詞前加助動詞否定形式dont/doesnt/didnt。4、some 改成any。二、肯定句改一般疑問句的方法三步法1、把be動詞放在句首,剩下的照抄,(some 改成any,my改成your等句點(diǎn)改成問號。2、把can,shall,will等放到句首,剩下的照抄,(some 改成any,my 改成your等句點(diǎn)改成問號。例如:陳述句: They are in the park. He can play the guitar.一般疑問句: Are they in the park? Can he play the guitar?把下列句子

10、變成一般疑問句1. I am listening to music._2. Mike is a student._3. Sarah can clean the classroom._4. They are in the zoo._5. There are some flowers in the vase._6.This is my sister._7.We are sweeping the floor._3、上述都沒有的,在句首請助動詞Do/Does/Did幫忙,剩下的照抄,(some 改成any,my改成your等句點(diǎn)改成問號。例如:陳述句: I like the ducks. He likes the dogs.一般疑問句:Do you like the ducks? Does he like the dogs?把下列句子改為一般疑問句。1. We need some masks._2. They like