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中级美国英语 - 第五课 助动词 should 和 must

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一.本课要点及示例

在这一课里, 我们要学习的是助动词 should, s-h-o-u-l-d, should 跟 must, m-u-s-t, must 的用法. 我们也要看看这两个助动词的否定式 should not 也就是 shouldn't 和 must not 也就是 mustn't 在意思上跟 don't have to 这个词组有什么分别.

首先我还是请两位英文老师给你念一段对话, 请你注意听英文老师的发 音和声调.

F: Peter, can you help me for a minute?

M: Yes, what do you want me to do?

F: Will you take the garbage out?

M: Do I have to do it now?

F: Well, you don't have to it now. But don't forget to do it today.

M: All right. I really must go now; otherwise I'll be late for school.

F: You have an exam this morning, don't you? You mustn't be late. Maybe you should ask your father for a ride.

好, 现在我们再把刚才那段对话用慢速度念一遍, 请你注意听:

F: Peter, can you help me for a minute?

M: Yes, what do you want me to do?

F: Will you take the garbage out?

M: Do I have to do it now?

F: Well, you don't have to. But don't forget to do it today.

M: All right. I really must go now; otherwise I'll be late for school.

F: You have an exam this morning, don't you? You mustn't be late. Maybe you should ask your father for a ride.

在彼得跟他母亲的这段对话里, 有几个句子用了我们今天要学的助动词 should, must 跟它们的否定式 shouldn't, mustn't 还有 have to 跟 don't have to 这两个词组, 现在我请老师把包含了这些词的句子用慢速度再念 一遍给你听:

M: Do I have to do it now?

F: You don't have to.

M: I really must go now.

F: You mustn't be late. Maybe you should ask your father for a ride.

二.SHOULD

好了, 现在该作练习了. 首先我们来学怎么用 should. 这个字是用来劝告 别人应该做些什么事. 比方有一句话: "天冷了, 你应该穿毛衣," 这句话, 你 可以这样说: It's cold. You should wear a sweater.

好, 现在我们给你多举一些例子. 每个句子我们念两遍, 请你听一遍, 跟着 重复一遍.

M: It's cold. You should wear a sweater.

F: It's cold.You should wear a sweater.

M: Peter is late. He should ask his father for a ride.

F: Peter is late. He should ask his father for a ride.

M: Henry is heavy. He should get in shape again.

F: Henry is heavy. He should get in shape again.

M: Kate is hungry. She should eat something.

F: Kate is hungry. She should eat something.

M: Your room is messy. You should clean it up.

F: Your room is messy. You should clean it up.

好, 现在我们换一个方式作练习, 先由老师说一句话, 比方: "下雨了!" It's raining. 接着老师给你一个词组: "带雨伞" carry an umbrella 请你用 should 这个字来完成句子, 所以答案就是: "下雨了, 你应该带雨伞". It's raining. You should carry an umbrella. 好, 现在我们开始练习. 在你作完 句子之后,请注意听正确的答案.

M: Peter is a good player.

M: join the team

F: peter is a good player. He should join the team.

M: Henry is tired.

M: take a rest

F: Henry is tired. He should take a rest.

M: Kate is thirsty.

M: have a glass of water.

F: Kate is thirsty. She should have a glass of water.

M: Your shirt is dirty.

M: change into a clean one

F: Your shirt is dirty. You should change into a clean one.

M: It's raining.

M: carry an umbrella

F: It's raining. You should carry an umbrella.

刚才那组练习你都作对了吗? 下面我们来练习 should 的否定式 should not. 这两个字可以简缩为 shouldn't, 意思就是劝人不要做什么事. 我们 作的是换字练习. 老师先念一句话, 接着老师给你一个新的词组, 请你 把新的词组代换到原来的句子里. 每作完一句, 就请你听正确答案.

M: You shouldn't spend so much money.

M: drink so much coffee

F: You shouldn't drink so much coffee.

M: buy so many records

F: You shouldn't buy so many records.

M: go to so many movies

F: You shouldn't go to so many movies.

M: drive so fast

F: You shouldn't drive so fast.

三.MUST

下面我们来学另外一个助动词 must. 这个字表示必须作某件事情, 没有 其他选择. 比方有一句话: " 亨利要上飞机了, 他非有飞机票不可 ", 这句 话英文可以这么说: Henry is going on an airplane. He must have a ticket.

现在我们给你多举一些例子. 每个句子我们还是念两遍, 还是请你听一 遍, 重复一遍.

M: Henry is going on an airplane. He must have a ticket.

F: Henry is going on an airplane. He must have a ticket.

M: Kate is going to a formal party. She must wear a dress.

F: Kate is going to a formal party. She must wear a dress.

M: Linda is going to buy a record. She must save some money.

F: Linda is going to buy a record. She must save some money.

M: Mary has an exam tomorrow. She must study hard.

F: Mary has an exam tomorrow. She must study hard.

M: Peter has a class at 7 o'clock. He must get up early.

F: Peter has a class at 7 o'clock. He must get up early.

M: Susan doesn't have a car. She must go to her job by train.

F: Susan doesn't have a car. She must go to her job by train.

must 的否定式是 must not, 也可以简缩为 mustn't. 这个词是用来表示一定 不应该作的事. 下面这组练习内容都是说彼得在上课的时候不应该作的一 些事. 由老师先念一个句子: peter mustn't sleep in class. 接着老师念一个 新词组: eat lunch. 请你用新词组把原来的句子改为: Peter mustn't eat lunch in class. 好, 现在我们开始作换字练习. 每作完一句就请你听正确答案.

M: Peter mustn't sleep in class.

M: eat lunch

F: Peter mustn't eat lunch in class.

M: talk

F: Peter mustn't talk in class.

M: smoke

F: Peter mustn't smoke in class.

M: write letters

F: Peter mustn't write letters in class.

M: look out of window

F: Peter mustn't look out of window in class.

M: listen to the radio

F: Peter mustn't listen to the radio in class.

四.HAVE TO

刚才我们学习了两个助动词 should 和 must, 还有它们的否定式 shouldn't 和 mustn't, 现在我们来学习另外一个意思跟 must 相同的词组 have to. 这 个词组也是用来表示非作某件事不可. 比方有一句话: "你非得清理院子 吗?" 英文可以这样说: Do you have to clean the yard? 另外一句话: "你非 得工作挣零用钱吗?" 英文可以这样说: Do you have to work to earn your allowance?

好, 现在我们来练习这类句子.由老师念一个句子, 然后老师给你一个新词 组, 请你用这个新词组作换字练习. 作完一句就听正确答案.

M: Do you have to clean the yard?

M: practice everyday

F: Do you have to practice everyday?

M: go to the supermarket

F: Do you have to go to the supermarket?

M: wash the dishes

F: Do you have to wash the dishes?

M: change your clothes

F: Do you have to change your clothes?

M: work to earn your allowance

F: Do you have to work to earn your allowance?

凡是陈述句的主词是第三人称 "他" 的时候, 就应该用 has to. 下面我们要 练习这类句子. 老师先用 does, d-o-e-s, does 开头作问句, 请你用 has to 来 回答问题. 作完一句还是请你听正确答案.

M: Does he have to go to New York?

F: Yes, he has to go to New York.

M: Does he have to clean up his room?

F: Yes, he has to clean up his room.

M: Does she have to take the bus?

F: Yes, she has to take the bus.

M: Does she have to drop this course?

F: Yes, she has to drop this course.

have to 的否定式 don't have to 跟 has to 的否定式 doesn't have to 都可以 用来表示不一定非得作某件事, 而有其他选择. 在下面一组练习里, 我们 要多学学这类句子. 每个句子我们还是念两遍, 还是请你听一遍, 重复一

遍:

M: I don't have to buy records. I can listen to the radio.

F: I don't have to buy records. I can listen to the radio.

M: You don't have to go to the movies. You can stay home and watch television.

F: You don't have to go to the movies. You can stay home and watch television.

M: We don't have to take the train. We can take the bus.

F: We don't have to take the train. We can take the bus.

M: They don't have to drink coffee. They can drink tea.

F: They don't have to drink coffee. They can drink tea.

M: He doesn't have to wear a white shirt. He can wear a blue one.

F: He doesn't have to wear a white shirt. He can wear a blue one.

M: She doesn't have to cook. She can go out to eat.

F: She doesn't have to cook. She can go out to eat.

五.听短文回答问题

首先还是请你听一段文章, 内容是说彼得跟琳达兄妹两个人应该帮着作 些什么家事才能每星期拿零用钱.

现在请你注意听:

Every week Peter and Linda receive five dollars from their parents. This money is their weekly allowance. It is not a gift. Peter and Linda must work for the family to earn the money. Peter takes out the garbage and cleans the yard around the house. He should do it everyday, but sometimes he forgets. Linda helps her mother with the cooking. She also washes the dishes after dinner. Peter and Linda don't have to use their money for food. They use it for their entertainment. Sometimes they go to the movies. Sometimes they buy records. Each week they save some of their money to buy something more expensive.

刚才那段文章你听懂了多少? 文章里包含了今天教的语法, 你是不是注意 到了? 等一会儿我们会把整段文章再念一遍. 现在我们把今天测验的三个 问题先念一遍给你听.

第一个问题是:

M: What should Peter do to earn his weekly allowance?

第二个问题是:

M: Does Linda have to use her allowance for food?

下面是第三个问题:

M: How do Peter and Linda spend their money?

好了, 现在我们再把刚才那段文章用慢速度念一遍给你听, 请你特别注意 刚才那三个问题的答案.

Every week Peter and Linda receive five dollars from their parents. This money is their weekly allowance. It is not a gift. Peter and Linda must work for the family to earn the money. Peter takes out the garbage and cleans the yard around the house. He should do it everyday, but sometimes he forgets. Linda helps her mother with the cooking. She also washes the dishes after dinner. Peter and Linda don't have to use their money for food. They use it for their entertainment. Sometimes they go to the movies. Sometimes they buy records. Each week they save some of their money to buy something more expensive.

现在要请你回答今天测验的三个问题. 在你回答以后, 请你听老师说 正确答案, 看你答对了没有.

下面是第一个问题:

M: What should Peter do to earn his weekly allowance?

F: He should take out the garbage and clean the yard around the house.

第二个问题是:

M: Does Linda have to use her allowance for food?

F: No, she doesn't have to use her allowance for food.

现在请你回答第三个问题:

M: How do Peter and Linda spend their money?

F: Sometimes they go to the movies. Sometimes they buy records.

网友的学习评论(61条):
作者:malcolm
轻松消化
作者:Just Love
一天一课现在只有慢慢来了!
作者:elly
每天积累知识
作者:Paris
每天两课,把时间安排得更充实。
作者:liaoajie
not bad
作者:川烟子
ok
作者:Kristin_Zhou
结束一课~~继续加油~~↖(^ω^)↗~~
作者:Amy
very good
作者:DavidZhou
Today's work is over! That's good!
作者:Joey
Every day I have to get up early.First I must clean the drinking bottles for my daughter , and prepare the breakfast for my family.When everything is done, it is a little late,l should drive to my job so fast.After work, I have to go the suppermarket to buy something for the dinner.But I don't have to cook the dinner.
作者:English-crazy
It's easy!
作者:AMY
Like it !
作者:huhukaka
One lesson one day,it's so interesting!!
作者:竹铃
I must work to earn my allowance! I should cherish it.
作者:Cindy
No, she doesn't have to use her allowance for food.这个地方应该是she doesn't has to use herallowance for food. she.是第三人称单数啊,这里不应该用have to吧
作者:浮生如梦
Get it...
看课程表是每天一课,但每天学两课也不多
作者:Martin Qiu
Got it
作者:yangyang
I don't have to cook food,I can go to restaurant for dinner
作者:阿辉
good
作者:xian70999
坚持就是胜利
作者:happyhenry
I have to leave for work at 7:00 every day, so I can catch a bus at 7:15, it takes me about 10 minutes to walk to go to the bus stop. but my wife doesn't have to leave home so early, because she's office is very near from our home.
作者:jane
I don't have to work by bus , I can walk to work ,because my office is not far from my home.I must work hard to earn money.
作者:松魂
I must study english very hard
作者:Alex
I must study English today as usually,also I have to earn money for me and my parens ervery day!because I want have well live with my lovers.
作者:janeprimrose
I must work for my family to earn the money.
作者:Ken.Frank
you don`t have to work by bus , you can ride electric car.you should clean up the room ,it`s too dirty
作者:mitrl
Now, I have to go bed,i'm so tird! Good night!
作者:makoutie
Sometimes I have to help my child with her English lessons.I should study English better.
作者:jiejie
no problem
作者:David
OK
Now, I have to go bed,i'm so tird! Good night!
作者:Evan
原来在中学已经学过,可是一直到现在都是模模糊糊的一个概念。现在重新再学一遍,觉得学得非常轻松,并且效果很好。这让我想到另外一个问题:为什么中国的学生特别累,这是不是说明我们的教育,在方式方法上存在严重问题?
作者:Bluseli
I have a dream that I have a good jod by speaking a good Einglish
作者:Felcx
The day after tomorrow I must go to school,first I have to take a car to NanNin,next I have to take a train to GuiLin .Does sombody go with me?
作者:Ada.jiang
every month we receive our salary from our boss.this money is our monthly salary,it is not an allowance. we must work for the campany to earn the money.someone sell products,they should calls customers everyday,but sometimes they not do it. someone devise product ,they should cartridge for every product,but sometimes they forgets.we have to use our money for life.we use it for shopping or buy others something.
作者:da xiong
Last question should answer "Sometimes they go to the movies. Sometimes they buy records. Each week they save some of their money to buy something more expensive."
作者:Tin
很适合英语基础差的我学习~~~
作者:houtou197
improve step by step
作者:lillian
I can take this class,it can help me improve my englaih ,i will inisite to do it .
作者:Vincentguo
We should learn English everyday!Because we must pass many exams at school.
作者:JerryBing
OK,but they don't have to use their money for food .
作者:Eddy
加油 坚持就是胜利!!
作者:gil_wang
Now ,l know that l shall study so hard ,otherwise l must recept my boring work .l have to meet my ugly boss everyday .
作者:insister
Everyday morning I have to take my son to his kindergarten, and then I have to buy something for the dinner. I also need to do all of the housework, when it is 4:30am, I should to pick my son home.Then, I should prepair for our dinner, after the dinner, I will teach my son for his study, and around 10:00AM, I must take him to bathe, then I have to help him to fall asleep. I mustn't waste my life like this, I hate it. I should go out to find a job.
作者:Ada.jiang
ahhh, i feel that it is very good .
作者:DOV隳隳
try it again!
作者:Ada.jiang
I didn't heard these words"thirty、shirt、dirty、carry on umbrella、record、practice、supermarket、allowance、drop、garbage、around、use、entertainment."
作者:Maggie
这两天因为其他事情,没有很专注于此。昨天晚上读的时间也不长。
作者:Maggie
昨天因为看胡因梦的《生命的不可思议》花了一些时间。但晚上读的时候开始没有什么感觉,还是一直想着她书里的内容。但后来就读得越来越快,有时一愣神,发现嘴里已经读到下一句了,眼睛和思维还在上一句。难道已经有了通感?
作者:Maggie
继续读。在读does he have to go to New York?yes, he has to go to New York。的时候觉得比较拗口。虽然早就知道第三人称单数。但实际说的时候和读的时候还是不能很圆润自然。
作者:Maggie
继续读,跟着复读机调整音调。发现单字读音是标准的,但连在一起读的时候就与两位老师的的读法有点差异。而且似乎很难改过来。
作者:Maggie
昨天读到最后听力材料了。今天早上发现能背诵了。
作者:Andylu88888
shouldmusthave to doesn't have to mustn'tshouldn't
作者:Noah
作者:jayames
come on
I want to have a wonderful future. So now, I should study hard to improve my energy. That's to say, I shouldn't waste time to play games. Then I must control myself and make a determination firmly. I mustn't do it just when I'm exciting. Preventing dropping up on the way, I have to make some projects to finish strictly. Of course, it doesn't have to be bald and boring.
作者:Jerry
comeonjerry
作者:Pine_Suen
I must study hard the english, then I can keep my step with everyone.
作者:丽雪将军
great!
作者:naturaltime
Success belongs to the persevering.
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