(共17张PPT)
should 用法
Module 5 Unit 10
How to stay safe
情态动词should意为“________ ”,常用于提出建议。它_______(有 / 没有)人称和数的变化,后接_________ 。should的否定形式是在其后面直接加not, 可缩写为_________ 。
应该
没有
动词原形
shouldn’t
should是情态动词,意为“应该”,后接不带to的动词不定式 (即动词原形),没有人称和数的变化。含should 的陈述句通过在should 后加not变成否定句 (should not缩写成shouldn’t);把should提到句首变成疑问句。它可用来表示:
1. 劝告、建议等。例如:
You shouldn’t be so careless. 你不该这样粗心大意。
2. 表示义务或责任。例如:
You should help your parents do some housework at home. 你应该在家帮助父母做一些家务。
3. 在某些从句中,用来表示令人惊讶、不合理或难以置信的事情。例如:
It seems unfair that this should happen to me. 真不公平,这件事竟然发生在我身上。
4. 第一人称疑问句中,表示征求对方的意见,用在提供帮助、提出建议、要求、给予指示的句子中。例如:
Should I open the window?我可以打开窗户吗?
5. 表示谦逊、客气、委婉之意,用来使直接或直率的陈述变得婉转。例如:
I should say it is impolite for you to do this like that. 我得说,你那样做是不礼貌的。
6. “should + have + 过去分词”结构可表示对过去所发生的事的看法,should have done sth.表示“本应做某事而没有做”,shouldn’t have done sth. 表示“做了本不应做的事”。例如:
You should have told me about it. 你本应告诉我这件事。(实际上没告诉)
You shouldn’t have gone there yourself. 你本不应该自己一个人去那里。(自己去了)
【小试牛刀】 1. 如果你牙痛,你应当看牙医。
If you have a toothache, you ______ ______ a dentist.
2. 你不应当把车开这么快,这很危险。
You ______ ______ so fast. It’s too dangerous.
3. 我该叫老师帮我忙吗?
______ I ______ the teacher for help
4. 已经是九点钟了,我想图书馆应该开门了。
It’s nine o’clock now. I think the library ______ ______ open now.
5. 他是个很细心的人,应当不会犯这样的错误。
He is a careful man. He ______ ______ such a mistake.
6. 我倒是认为你应当在做决定前仔细考虑考虑。
I ______ ______ you should think it over before you make a decision.
7. 你不该吃这么多垃圾食品。
You ______ ______ eaten so much junk food.
should
see
shouldn't
drive
Should
ask
should
be
shouldn't
make
should
say
shouldn't
have
In our class,what things
we should do And what
things we shouldn’t do
Please make the class
rules.(在我们班级里有很多事
事我们能做,很多事不能做,
请同学们制定班级公约)
listen to teacher
clean the blackboard / desk
draw on the wall.
clean the floor
We should…
We shouldn’t…
In our class,
We should …
listen to teacher 听老师讲
finish exercises 完成练习/作业
be quiet 保持安静
answer questions 回答问题
clean the floor 清扫地面
read books 读书
be helpful 乐于助人
be kind 好心/善良
study hard 努力学习
tidy up desk 整理书桌
We shouldn’t …
run in classroom 跑/追打
play basketball in classroom 打篮球
talk in class 讲话
play with toys in class 课堂上玩玩具
draw on the wall 墙上乱画
make noise 制造噪音
fight 打架
eat in classroom 吃东西
make a mess 弄乱东西
Library
zoo
park
school
Should he wear the hat
He should wear the hat.
√
You shouldn’t___________________.
play with the CDs
You shouldn’t
_________________________________.
take the books off the shelves
You should_________________.
tidy your toys
In the library
Tom is drawing a duck on the book ,Amy is reading a comic book(漫画书) and laughing loudly(大声地), Ms Smart says:”
Amy,___________________________,
Tom,______________________________.”
you should be quiet
you shouldn’t write on the book
In the park
Everyone is happy here: Sam is flying a kite, Amy and Lingling are singing and walking on the grass, Tom is feeding the ducks, and Daming is playing on the slide. What do you want to say
you shouldn’t walk on the grass.
you shouldn’t feed the ducks.
Tom,__________________________
Amy and Lingling,
__________________________