一、动词及主谓一致
1、 动词的种类(四类)
动词在句子中作谓语，注意时态和主谓一致。
但是非谓语to do, doing和done也要留意，七年级主要当固定用法来记。
1）联系动词
用法：和形容词，名词，介词等一起做句子的谓语（系表结构）。
联系动词有：
be动词(is am are)；
表示变化的become, get, turn, go等；
表示感官感受的sound, smell, taste, feel, look等
七年级主要学习前两类。
2）情态动词
情态动词有can, may, need, must等
情态动词不能单独作谓语，与行为动词一起作谓语。
3）助动词
助动词帮助构成完整谓语，自身没有意义：
do does（疑问句，否定句）；
be（构成进行时）；
have（构成完成时）
4）行为动词
行为动词表示行为动作。
take 、bring、eat、have、like、sell、buy、play、see、go、watch 等

2、主谓一致及动词的第三人称单数
主语是单数名词，第三人称单数（he, she和it），不可数名词），谓语动词用第三人称单数。
be的第三人称单数形式“is”;行为动词一般加“s”；
（否定句、一般疑问句和特殊疑问句，用助动词does 帮助构成）
情态动词没有第三人称单数形式
附：第三人称单数形式的构成：“动词原形 s/es”
(1)、一般情况,动词后直接加 s (清辅音后读 /s/,浊辅音,元音后读/z/)
例如:falls, looks, grows, plants，
(2)、以字母 e 结尾的动词,直接加 s (读 /z/)
例如:comes, takes
(3)、以字母s, x, ch, sh, o结尾的动词,加 es ( 读 /z/ 或/Iz/)
例如: finishes, does, goes, watches, fixes, washes
(4)、以“辅音字母 y”结尾的动词,变 y 为 i,加 es (读 / z /)
例如: studies
注意:元音字母 y结尾的动词,如enjoy play等，直接加“s”
(5)、have的第三人称单数形式为“has”
可数名词复数构成规则与动词三单一样！
复习题一
用be动词的适当形式填空。
1. I ______from France.
2. ______ your father an engineer? No, he_______.
3. The little girl ______ lovely.
4. This ________ my English book.
5. Mom, where _______ my pencils?
6. They _______ my best friends.
7. Our English class _______ full of fun.
8. These_______ my glasses.
9. How much ______ the shoes?
10. How much ______ the pen?
11. Our PE teacher ______ very strong.
12. You can _______ whatever you want to be.
13. I want to ______ a doctor and help the sick people.
14. Let’s _______friends.
15. Jack and I ______ friends.
16. It _____ a small puppy.
17. Mary and Tom _______ classmates. They _____ in Class Three.
18. Someone ______ in the room.
19. Who ______ she?
20. What _______ in your bag?
参考答案
1. am. 2. Is, isn’t. 3. is. 4. is.
5. are. 6. are. 7. is. 8. are.
9. are. 10. is. 11. is.
12. be. 情态动词后用原型。
13.be. “to 动词原形”是动词不定式。
14. be. Let’s“让我们……”，后动词用原型。
15. are. 16. is. 17. are, are.
18. is. 19. is
20. is/are，从句子意思看，包里有什么？可能一样东西，也可能多样东西。
让我们选择的话，没有上下文提示，请选is
复习题二
用所给词的适当形式填空。
1. She often _____ (go) swimming on Sundays.
2. Jim usually _______ (ride) a bike to his office in the morning.
3. Where ____ your father ______ (work)?
4. I _______ (have) maths, Chinese and English on Thursday morning.
5. My grandfather _______ (jog) in the park every morning.
6. Mrs Golf _________ (have) three sons and a daughter.
7. The family ________ (travel) in December almost every year.
8. Who _____ (want) to go café with me?
9. The policemen seldom ________ (stay) in the office.
10. _____ Alice _____ (like) playing the guitar?
Yes, she _____ (do).
11. _______ you ________ (watch) TV after school?
No, I _____ (do).
12. _____ Canadians _____ (speak) English?
13. Mary ________ ______ (not come) from USA. She ____(come) from UK.
14. ______ sheep _________ (eat) grass?
15. What ______ (do) a cat usually ________(do) at night?
16. Mike sometimes ______(go) to the library by himself.
17. Lily and Mike’s father often ________ (take) them to the cinema.
18. The boy _________ (not like) playing basketball.
19. How much ______ it _____ (take) you to buy these books?
20. How many lessons _______ your classmate ______(have) on Monday?
参考答案：
1. goes. 2. rides. 3. does, work
4. have. 5. jogs. 6. has.
7. travels. 集体名词看作一个整体，为单数；侧重指集体中的每个人，为复数。
8. wants 9. Stay 10. Does, like, does.
11. Do, watch, don't. 12. Do, speak.
13. doesn't, come, comes.
14. Do, eat. Sheep单复数同形，根据句意，应该为复数。
15. does, do. 16. goes.
17. takes. Lily和Mike的父亲，两人是兄妹。
18. doesn't like. 19. does, take.
20. does, have.
