五年级英语下册 Unit 1 Remember the rules课件 深港版

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Must not, Mustn't的用法
We use must not to say that something is not permitted or allowed, for example:我们使用must not来表达不允许/ 不准做某事,例如 •Passengers must not talk to the driver. 乘客不许与司机 交谈。
NO, you needn’t .= No , you don’t have to .
Review of Unit One
重点词与词组:
轻声说话 红绿灯 仔细听讲 斑马线 消防演习
小心驾驶
直到…才
等候绿灯
大声交谈
排队
慢慢走
扔垃圾
消防员
从不

去医院
在图书馆
图书管理员
Translation
1. 上课时必须认真听讲。
Unit 1 Remember the rules
A story : The fire drill
Listen and answer : 1. Where does the story take place ? 2.Is it a real fire ? 3.What is the emergency number ?
F 2. The students must take their schoolbags .________
F 3.The students must line up in their classroom ._____
4The students mustn’t walk quickly down the stairs._______ F
Read the story again .Then read the sentences below . Write T for true and F for false . 1.The students must listen carefully and follow their T teacher ._______
Three. 4.Can we walk across the street slowly ? No , we can’t . 5. What does a yellow light mean ? It means “wait”
Key phrases : 1. busy ®忙的 ~at / with sth : ~ doing sth He is busy with work /at working . ®繁忙的 It is a busy street .
情态动词的用法
Must 必须,应该,一定,准是, 表示说话人认为有必要做某事, 命令, 要求别人做某事以及对事物的推测。 must 用来指一般现在时和一般将来时, 过去式可用 have to 的过去式代替。 I must finish my work today. 我今天必须完成我的工作。 You mustn't work all the time. 你不能老是工作。 Must I return the book tomorrow? 我必须明天还书吗? He must be the man I am looking for. 他一定是我要找的人。
1. Are the roads in our city busy ?
Yes , they are .
2.Why is it called “ zebra crossing ”? Because the black and white lines are like the lines on a zebra 3.How many colors do the traffic lights have ?
He had to go because of somebody‘s calling him that day. 那天他要走是因为有人叫他。
must 和 have to 的区别: must 表示说话人的主 观思想, have to 表示客观需要。
You must do it now. 你必需现在就干。(说话人认为必须现在干) I have to go now. 我得走了。(客观条件必须现在走)
We must _______________ listen carefully in class .
2.今天下午有一场消防演习。
a fire drill There will be __________________ this afternoon .
3.同学们必须在走廊上排好队,不得推别人。 line up corridor The students must ____________ in the ________and
T 5.The students mustn’t talk loudly .________
T 6 The students must line up in the playground .______
Key phrases :
1. fire 火
play with fire 玩火 fire drill 消防演习 on fire 着火 2.line up 排队 Eg : You must line up when you buy the tickets 3.call sb for help 向某人求救 Eg : When there is a fire , you must call 119 for help . fire alarm 火警报警器 fire man 消防队员
firecracker 鞭炮
Discussion :
Whaห้องสมุดไป่ตู้ are the rules in this case ?
F Look and do :
Library Rules
Kevin mustn’t_____________ push Tom mustn’t ______________ run Amy ________________ mustn’t talk Kelly ________________ mustn’t drink
I couldn't park outside the shop.
Must 的疑问句
句型: Must …?
Yes, ~ must . No, ~ needn’t .(=No, ~ don’t have to ) 不,不必了。
Eg : Must I live here ?
Yes , you must .
Subject 主语 I You must + not mustn't mustn't 动词原形 main verb forget disturb my keys. him.
Students
must not
be
late.
Must not 的用法
Must not 表达客观或主观的“不准、不允许”
•I mustn't eat so much sugar. (主观)
push others they mustn’t ________________. 4.我们必须等到绿灯时才过马路。 turns until We must not cross the road ___________ the light _____ green.
5. 上课了。 It is time _______________________________. for class./ to have class. 6.公交车上不准吃东西. eat or drink You mustn’t __________________ on the bus . 因为起床晚了,所以今早他迟到了。 was late for school Because _________ he got up late , he _________________ this morning . 图书馆里的规章制度是什么? are the rules What ____________ In library .
动词+ 副词的结构
talk quietly talk loudly walk quickly walk slowly listen carefully
1 be going to do sth 将要做某事 2 at the library 在图书馆 3 need to do sth 需要做某事 4 line up 排队 5 welcome to 欢迎来到 6 at the museum 在博物馆 7 talk to sb 和某人谈话 8 have a fever 发烧 9 take…to… 把 … 带到… 10 lots of = a lot of 许多的,大量的, 11 get ready for sth 为…做准备 get ready to do sth… 为做某事而准备 12 It’s time for sth. =It’s time to do sth.该是做某事的时候了。 13 won’t = will not 将不…
. Policemen must not drink on duty. (客观)
我们能用 must not 来谈论现在和将来 •Visitors must not smoke. (现在) •I mustn't forget Tara's birthday. (将来)
我们不能用must not 来谈论过去,这是我们用别的形式, 例如 •We were not allowed to enter.
must put rubbish in the bin Matt __________________________________
Susan , Mark and Sam __________________ must line up _
Further reading :
Listen and answer :
2 need to do sth 需要做某事
You need to study hard .
3. until 直到…为止
He worked until 12 last night .
not…until 直到…才
He didn’t go to bed until 12 last night .
1 There will be … 将有…. 2 follow me 跟着我 3 in the corridor 在走廊里 4 walk quickly down the stairs快速下楼 5 must be quiet 必须保持安静 6 call119 for help 打119求救 7 a fire drill 一次消防演习 8 a real fire 一次真正的火灾
Must是一个情态动词,它的结构是
Subject(主语) + must not + main verb(动词 原形)
像所有助动词一样,must 后不能接to
You mustn't arrive late. (不能 you mustn't to arrive late.)
Look at these examples:请看例子
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