七年级英语下册Unit 1 Can you play the guitar？语法部分课件（共有PPT10张）

(共10张PPT)
Can you play the guitar
Unit 1
Grammar Focus
Review
What club can .... join
Let’s learn.
Can you swim Yes, I can./No, I can’t.
Can he play chess Yes, he can./No, he can’t.
Can you and Tom play chess Yes, we can./No we can’t.
Can Jane and Jill swim Yes, they can./No, they can’t.
What can you do I can dance./I can’t sing.
Grammar Focus
1. can随人称变化而变化吗？
2. can后的动词形式有什么特点？
3. can的否定形式是什么样的？有缩略形式吗？
4. can在一般疑问句和特殊疑问句中需要借助助动词吗？
情态动词can没有人称的变化
情态动词can后用动词原形
can的否定形式是在can后直接加not。
可以缩略成can’t或cannot
不需要助动词，一般疑问句将can提到主语前
1、情态动词can用于：
表示某种能力：
Little Mike can brush his tooth.
表示请求或者许可：
Can you help me /Can I help you
conclusion
2、情态动词can用法：
没有人称和数的变化（不根据主语单复数变化而变化）；
eg：she /he/you/they/we/I/Lily/Bob and Dave can.........
不能单独做谓语，后面必须跟动词原形；（其中需注意am is are的原形为be）eg：I can be here我可以在这里。
含有can的陈述句变为否定句直接在can的后面加not，并且can not=can't
eg:Mathew can tell stories.=Mathew can not （can't） tell stories.
含有can的陈述句变为一般疑问句，直接将can提至主语之前，肯定回答Yes，主语+can;否定是No，主语+can't
eg:I can ride a bike.(改为一般疑问句并回答)
conclusion
Yes,I can
No,I can't
Can you ride a bike
知识回顾
你还记得表示“必须”的情态东西must吗
1、含义：表示必须，说话人的主观看法，语气很强烈；
eg：You must save money. 你必须要节约钱
2、否定形式mustn't表示禁止，不准。
eg:Everyone mustn't swim in the river.
3、同样没有人称和数的变化，一般只是表示现在。
eg：The brothers must clean the room.
Write questions and answers
with the words and phrases.
3a
Let’s write.
并正确使用
2. Mike / play basketball / play tennis
__________________________________
__________________________________
3. Jane and Jill/dance/sing
__________________________________
__________________________________
4. Grace/play soccer/play volleyball
___________________________________
___________________________________
5. Bill/write stories/tell stories
__________________________________
__________________________________
Can Mike play basketball
No, he can’t, but he can play tennis.
Can Jane and Jill dance
Can Grace play soccer
Can Bill write stories
No, they can’t, but they can sing.
No, she can’t, but she can play volleyball.
No, he can’t, but he can tell stories.
Students Wanted for School Show
We want students for the school show. Can you _____ or ______ Can you _____ the guitar Can you ____ stories Please talk to Mr. Zhang after school.
Complete the poster with the words in the box.
sing
dance
play
tell
play sing tell dance
3b
n.演出、节目
v.给....看，展示
show sth to sb给某人看什么=show sb sth给某人展示
talk to sb 给某人说/和某人交谈
or 连词 解析
1、用在选择疑问句中连结被选择的对象，意为“或者，还是”
eg？Which one do you like the pink one or the orange one
2、用于否定句中连结并列成分，表示“和，与”之意。
eg：There isn`t any air or water on the moon。月球上没有空气和水
注意：肯定句中并列连词应用and，在把含有and的肯定句改为否定句时，莫忘把连词and改为or
eg：The ss sing and dance in the classroom.(改为否定句)
The ss don't sing or dance in the classroom.
3、表示‘否则，要不然’，常用于，祈使句+or+陈述句。
eg：Work hard,or you will get bad effort.
3c
What can you do
Let’s say.
Name What can you do
Li Xin do kung fu
you
your father
your mother
School Show
Sunday 6:00 p.m.
in the music room.
What can you do
Come and show us!
并正确使用
In my group, Li Xin can do kung fu. _____
can _______. ____ can ______________.
____ can ______________.