九年级Unit 8 It must belong to Carla. 语法专题(共14张PPT)

(共14张PPT)
九年级全册Unit8
语法专题
情态动词表示推测的用法
单元语法专题
1
情态动词must
“一定；肯定”
表示肯定猜测
She must be a teacher.
Sam has been worked for four hours. He must be tired.
must 用在肯定句中
注意：mustn’t表示“禁止”
— Mum, may I go out with my friends tonight
— No, you mustn’t.
2
情态动词can的否定形式：can’t
“不可能”
表示肯定猜测
She can’t be a teacher.
She can’t be at home now. I just saw her in the school library.
can’t 用在否定句中
3
情态动词：may , might, could
“可能”
表示不确定的猜测
She may be a teacher.
The dictionary might be Jenny’s.
The book guitar could be Jenny. She plays the guitar.
辨析
She may be a teacher.
Maybe, you are right.
may be
maybe
情态动词+be动词
副词
谓语结构
He may be in the office.
Maybe he is in the office.
根据中文提示完成句子：
他一定是你的叔叔。（must）
______________________________________________
2. “吉娜在哪里？”
“我不确定，她可能在家吧。”
_______________________________________________
_______________________________________________
3. 那个女人不可能是你的新老师，她是我们的新老师。
_______________________________________________
4. 她一定正在赶公交车。
_______________________________________________
5. 一定是有人拿走了我的雨伞。
_______________________________________________
He must be your uncle.
— Where is Gina
— I don’t know. She may be at home.
That woman can’t be your new teacher. She is our new teacher.
She must be running after a bus.
Someone must have taken away my umbrella.
选择合适的情态动词填空：must, can’t, may, might, could
That scarf _______ be expensive because it is made of silk.
— Is the girl Jenny
— It _______ be her. She has gone to the library.
3. — Can I hang out with my friends, Mom
— Of course, but you _______ be home by 9 o’clock.
4. — Look at the hat on the chair. Is it Tom’s
— It_______ belong to him. I saw him go out with hat.
must
can’t
must
can’t
选择合适的情态动词填空：must, can’t, may, might, could
5. — Where are you going on vacation
— I _______ go to Nanning. But I am not sure now.
6. — I can’t find my wallet anywhere.
— You _______ have lost it while you are on the way to school.
might
could
could
may
might
may
选择题：
1. — He _______be in the classroom. I think.
— No, he ________be in the classroom. I saw him go home a minute ago.
A. can; may not B. must; may not
C. may; mustn’t D. may; can’t
2. —Whose book is this
—It ___________ our geography teacher's. You see, his name is on it.
A. can't be B. can be C. mustn't be D. must be
D
D
选择题：
3. —Difficulties always go with me!
—Cheer up! If God closes a door in front of you, there _____ be a window opened for you.
A. would B. must C. could D. can
4. —Whose T-shirt is this
—It ___________ be John's. It's ___________ small for him.
A. can't; much too B. can't; too much C. mustn't; too much
B
A
选择题：
5. —Is that girl in red Sally
—No, it __________ her. She has gone to Hong Kong.
A. may be B. must be C. can't be
6. The blue coat ______ be Tony’s. He never wears blue clothes.
A. can B. must
C. can’t D. mustn’t
C
C
选择题：
7. — Oh, it’s raining hard.
— Be careful! The road _______ be wet.
A. could B. must C. might
8. — Two hundred years for such a T-shirt! You _____ be joking.
A. can’t B. can
C. need D. must
B
D
选择题：
9. — Do you have any plans for this weekend
— I’m mot sure. I go_____ climbing Mount Yuntai.
A. must B. need C. may D. can
10. In competition, as in life, you _____ not always win.
A. may B. can C. must
C
A
THANK YOU