Unit 5 It must belong to Carla教案

逍遥右脑  2013-08-07 15:15


UNIT 5 It must belong to Carla.

一、学习目标

?学会使用might,could,must等情态动词进行合理的推测。

?学会根据一定的背景或前提对某事进行判断和预测。

二、知识概览图

类别
课程标准要求掌握的内容
必备

单词

名词:author,picnic,symphony,appointment,owner,helicopter,creature,neighbor,footstep, garbage,mystery, director, monkey, smell, finger, stone, ant, ocean 动词:drop,

chase, catch, interview, escape, bark, pretend 形容词:crucial, anxious, worried, unhappy, dishonest 副词:possibly, extremely常考

短语belong to, air band,make up.use up,turn off,because of,try to do sth.,too much/much too

经典

句型

1.It must belong to Carla.2.It’s crucial that I study for it because it makes up 30% of the

final exam.3.He might be running to catch a bus.4.There must be something visiting the

homes in our neighborhood, but what is it ?重点

语法如何用must,may,might,can,could来表达推测

三、新课导引

SECTION A

1.It must be Carla’s.它一定是卡拉的。

must be“一定是”。情态动词must除表示“必须”外,还表示推断,通常与be连用,意为“一定是,肯定是”。must这种表示推测的用法只用于肯定句中。

There must be something wrong with the computer.那台电脑一定是出了什么毛病。

注意

(1)can't be意为“不可能是”,表示有把握的否定推测。

That man can't be Mr. Wang.He is ill in hospital.

那个人不可能是王先生,他生病住院了。

(2)含有must be的句子变为否定句时,需把must be改为can't be。

We must be wrong.我们一定是搞错了。(改为否定句)

We can't be wrong.我们不可能搞错了。

中考链接

【2011 山东烟台】39. .?I think the man over there must be Bob.

-- It _______ be him. He has ______ to Australia.

A. can’t, gone B. can’t, been C. may not, been D. mustn’t, gone

答案:A

【解析】考查点:情态动词can及现在完成时的用法。此处can’t表示推测语气,意为“不可能”;“have/has gone to+地点”意为“去了某地”,表示不在说话人这儿;“have/has been to +地点”表示“去过某地”,现在已经回来了;mustn’t意为“严禁,不许”,may表示不确定的推测语气。句意为“?我认为那边的男人一定是Bob。?不可能是他。他已经去了澳大利亚。”故选A。

【2011?盐城】3. ? Where's David?

? He be in the playground because he is fond of playing basketball.

A. will B. may C. can't D. mustn't

答案:B考查情态动词表推测。根据第二句意“他......在操场上,因为她喜爱打篮球”可知。

【2011湖北?武汉】33. - Look, Sue is over there.

- That ____ be her. She is in Canada now.

A. mustn’t B. can’t C. needn’t D. won’t

答案: B

【解析】考查情态动词的用法。由空隔后“苏现在在加拿大”可知,她现在不可能在那边。表示否定推测,语气比较强烈,用can’t。

【2011江苏徐州】5. She _______ be here . I saw her come in.

A. can B. may C. should D. must

答案D

【解析】考查情态动词的用法。Can和may表示没有把握的推测,should意为“应该”,must表示有把握的推测。由后句句意“我看见他进来了”可推测前句,她一定在这儿。故选D

【2011襄阳】33. ---- Whose backpack is this?

---- It be Jim’s. Look, his student’s card is in it.

A. must B. can C. mustn’t D. can’t

【答案】A

【解析】情态动词表推测 由“他的学生证在书包里面”。可知“这个书包一定是吉姆的。”

【2011浙江湖州】 23. ? Who’s singing in the next room?

? It ____ be her . She has gone to New York.

A. can’t B. must C. shouldn’t D. can

答案:A

【解析】考查情态动词表推测。表示否定推测时,用can’t,意为“一定不……”。must表示推测时,意为“一定……”,用于肯定句;根据答语“她已经去了纽约”可知是否定推测,故选A。

(2010?山东威海)That restaurant be very good.It's always full of people.

A.can't B.may C.shouldn't D.must

解析:本题考查情态动词表示推测的用法。肯定推测用must be,否定推测用can't be。由下句“It's always full of people”“它经常满座”知,第一句表示肯定的推测:那家饭店一定非常好。故选D。 答案:D

【2010江苏?镇江】3. They _________ play football last Friday because Simon forgot to bring his football here.

A. could B. couldn’t C. can’t D. can

答案:B

【解析】情态动词。couldn’t 是could的否定式。表推测时,它们并不是过去式,只是在语气上比can或can’t委婉;could和couldn’t 表示推测时,可用于肯定句、否定句和疑问句。could/couldn`t一般用于过去的时态,can/can`t一般用于一般现在时态。句意为:上周五他们不可能踢足球了,因为西蒙忘记带他的足球了。故选择B。

【2010四川?内江】What is your mother going to do this Saturday ?

---I’m mot sure . She ____ go to see my grandmother .

A. can B. must C. may

答案C

【解析】can表示具备某种能力;must表示推测,非常肯定。May表示对现在的一种推测。根据题意答案应选C

【2010浙江?东阳】 18. ?Whose shirt is this?

--It ____ be Li Lei’s. It is too big for him.

A. could B. must C. can’t D. might

答案C

【解析】can’t表示不可能,其他不合题意。

(2009?河南中考) -Excuse me, where are we going to have our class meeting?

-I’m not sure. Ask our monitor, please. He know.

A. can B. may C. need D. shall

【解析】选B。考查情态动词may表示推测。结合前句“I’m not sure. Ask our monitor, please.”可知题意为“他可能知道(我们将在哪里开班会)”,故选B。may表示可能性的推测,常用在肯定句中。

(2009?江西中考) ?Susan has bought a large house with a swimming pool.

-It ______ be very expensive. I never even dream about it.

A. must B. might C. can’t D. shouldn’t

【解析】选A。考查情态动词must表示肯定的推测。结合关键信息“I never even dream about it.”可知题意为“它肯定是非常贵的”,故排除B、C、D三项,选A。

(2009?泰安中考) -Listen! Is Professor Johnson giving a report in the hall?

-No, it be him. He has gone to Japan.

A. needn’t B. may not C. mustn’t D. can’t

【解析】选D。本题考查can’t表示否定的推测。四个选项都是情态动词的否定形式,分别意为“不能;不可能”、“千万不能”、“应该”、“可以;可能”。结合关键信息“He has gone to Japan.”可知“他不可能是约翰教授”应选D。

(2008?长沙中考) -Is Lucy knocking at the door?

-No. It ________ be Lucy. She is in Japan now.

A. needn’t B. must C. can’t

【解析】选C。考查情态动词can’t表示推测的用法。can’t表示否定的推测;must表示肯定的推测。由题意“不可能是露西,她现在在日本”可知应选C。
2.He was the only little kid at the picnic.他是野餐中唯一的小孩。

only在这里是形容词,意为“唯一的,仅有的”,用来修饰名词。

She is the only girl in her family.她是家里唯一的女孩(独生女)。

3.It could be Mei’s hair band.它可能是梅的发带。

could在这里表示推测,意为“可能”,表示把握不大。

注意

情态动词may,could,might,can都可用来表示没有把握的推测,意为“可能”。它们在表示推测时,无时态区别,只是在语气上有差别。语气上由强到弱的顺序为:can,could,may,might。can表示推测时常用于疑问句和否定句,can't表示几乎可以确信某事不是真实的,是否定的推测; could和might表示某事也许是真实的;may表示推测时多用于肯定句,不用于疑问句。

This bike could/might be Li Lei's,but I’m not sure.

这辆自行车可能是李雷的,但我不敢肯定。

Your book may be in your desk.你的书可能在你的课桌里。

4.The hair band might belong to Linda.这条发带可能属于琳达。

belong to意为“属于……,为……所拥有”。belong to没有被动式,也不能用于进行时态。

The bike belongs to my mother.这辆自行车属于我妈妈。

译:这个男孩是一年级演唱队的队员。

误:The boy is belonging to the singing group of Grade One.

正:The boy belongs to the singing group of Grade One.

注意

belong to中的to是介词,后接名词或人称代词的宾格形式,不能接名词性物主代词或名词所有格。

This classroom belongs to us.这间教室属于我们。

5.The soccer ball might be John’s or Tony’s.这个足球可能是约翰或托尼的。

aunt's or uncle's阿姨的或叔叔的

Tom's and Jack’s bikes are the same.汤姆的自行车和杰克的是一样的。

This is Tom and Jack’s room.They live together.

这是汤姆和杰克的房间。他们住在一起。

注意

表示各自的所有关系时,各名词末尾均须加’s;表示共有的所有关系时,在最后一个名词的末尾加’s。

6.She’s the only one who’s studying French.她是唯一正在学法语的人。

(1)one用作代词时,常用来指代上文中的某个可数名词,以免重复。

辨析:one与it

①one泛指;指代前面提到过的同类人或物中的一个,用于指代可数名词。

②it特指;指代前面提到过的同一个物体,用于指代可数名词单数或不可数名词。试比较

I don't have a knife.Lend me one.我没有小刀,借给我一把。(one指代a knife)

The picture is very nice.Please show it to me.

这幅画很漂亮。请让我看看。(it指代the picture)

中考链接

(2010?安徽)一I need something for cutting the paper.

一Oh,you want a knife? OK,I’11 get for you.

A.it B.that C.this D.one

解析:本题考查代词的用法。句意为:“我需要个东西来割这张纸。”“噢,你需要一把小刀吗?好吧,我为你拿一把。”空格处表示泛指,用one指代与前面提到的同类事物中的一个。it表示特指,与前面提到的名词为同一个;that常用 来代替前面已提到的事物,以避免重复;this指近处的人或物。 答案:D

(2) who's studying French在句中作定语,是一个定语从句,修饰代词one。who’s是who is的缩写。

被定语从句修饰的词叫做先行词,定语从句必须放在先行词的后面,定语从句由关系代词或关系副词引导。常用的关系代词有who/whom(指人),which(指物),whose(指人或物),that(指人或物);关系副词有when(指时间),where(指地点),why(指原因)等。

I was the only person in our office that/who was invited.

我是我们办公室里唯一受到邀请的人。

This is the building that/which we built last year.这是去年我们盖的那座楼。

We are going to the place where he works.我们正要去他工作的地方。

中考链接

(2010?天津)Jamie is a young cook wants to improve school dinners.

A.who B.whose C.whom D.which

解析:本题考查定语从句。先行词是cook,指人,故用关系代词who,并且who在从句中作主语。 答案:A

7.It’s much too small for him.他穿太小了。

much too “太……”,后跟形容词或副词。much修饰too,强调“太……”的程度。

I can't stay here any longer because it's much too noisy.

我再也无法待在这里了,因为(这里)太吵闹了。

拓展

too much后接不可数名词,意为“太多……”,而much too意为“太……”。

We have too much homework to do today.我们今天有太多的作业要做。

They are much too young to go to school.他们太小了,不能去上学。

8.If you have any idea where it might be , please call me.

如果你知道它可能在哪儿,请给我打电话。

(1)any表示“一些,任何的”,与some同义,但在条件状语从句中用any不用some。

If you have any questions,ask me.如果你有问题就问我吧。

(2)have some/any idea意为“知道,了解”;have no idea意为“不知道,不了解”,后

可接about/of,再加名词或代词,或直接加从句。

Do you have any idea about it? 你知道那件事吗?

You may have some idea (of) what he said.你也许知道他说了什么。

I have no idea/I don't know why you were late for school.

我不知道你为什么上学迟到了。

9.I think I dropped it during the concert so it might still be in the symphony hall.

我想我是在音乐会期间把它丢了,因此它可能仍然在交响乐大厅内。

(1)drop用作动词,意思是“(使)落下,(使)掉下”,既可作及物动词,也可作不及物动词,与fall同义。

The glass dropped out of her hand.玻璃杯从她手中掉了下来。

辨析:drop与fall

drop

可以是偶然的“丢掉,跌落”,也可以指有意而为的“投下”。

fall

多指地球引力所导致的“下落”或失去平衡的“跌落”。

drop a letter in the mailbox把信投入邮箱 fall down to the ground跌跤

(2)during介词,“在……期间”

during the summer在夏季 during the summer holiday在暑假期间

10.It’s crucial that I study for it because it makes up 30% of the final exam.

我的备考学习至关重要,因为它占期末成绩的30%。

(1)crucial是形容词,在本句中意为“至关重要的”,常与to连用。

The medicine is crucial to the boy's life.

这种药对这个男孩的生命至关重要。

(2)make up意为“组成,构成”,在本句中意为“占有”。

The homeless make up a growing percentage of America's population.

无家可归者在美国人口中所占的比重呈上升趋势。

【2011浙江杭州】28. I have to well prepare for the math test tomorrow because it ______ 30% of the final exam. A. sets up B. puts up C. uses up D. makes up 答案:D

【解析】词义辨析。set up 意为“建立;搭建”;put up 意为“张贴;举起”;use up意为“用完”; 而make up意为“组成”。由句意“我不得不为明天的数学测试做好准备,因为它占期末考试的30%。”可推断选D。

(3)final形容词,意为“最后的;最终的”。final exam期末考试

The final thing she did before she left the house was to look the door.

她离开房子前做的最后一件事是锁门。

11.I’m really anxious, because I can’t find my backpack.

我真的很着急,因为我找不到我的背包了。

anxious是形容词,意为“忧虑的,担心的,渴望的”,着重指焦急、着急、担心的心情。

常用结构如下:

be anxious for/about为……而担忧;为……着急;渴望……

be anxious (for sb.) to do sth.渴望(某人)做某事

Parents are anxious about their children's health.父母都为孩子们的健康而担忧。

He's anxious to have a bike of his own.他渴望拥有一辆自己的自行车。

12.She’s worried because of her test.她因为考试而着急。

because of意为“因为,由于”。

She was absent because of sickness.她因生病而缺席。

注意

because表示直接原因,回答why的提问,一般放在主句之后,也可单独存在,它引导一个原因状语从句;而because of不能引导从句,其后一般跟名词、代词、动名词或名词短语。

中考链接

【2011?扬州】He had to retire(退休) early ______ poor health.

A. as a result B. because

C. so D. because of

答案:D

【解析】连词考查。Because与because of都表示原因,但because必须引导句子,而because of后跟名词。

【2011四川宜宾】29. He didn’t go to school yesterday _______ he was ill.

A. because B. because of C. if D. so

答案:A

【解析】A考查连词的用法。because引导的状语从句,根据句意:他昨天没来上学是因为生病了。B后面接名词或名词性短语。D经常与that搭配引导目的或者结果状语从句。故选A。

五、课堂检测

Ⅰ.选词填空

much too too much because of belong to

1.The girl was worried the coming exam.

2.The toy car must Jim because he often plays with it.

3.You are so fat that you can't eat fat(肥肉).

4.The coat is big for the thin girl.

Ⅱ.单项填空

1.Nancy be in Beijing.I met her in the library a few minutes ago.

A.shouldn't B.can't C.may not D.mustn’t

2.The yellow coat be Linda's because nobody likes yellow except her.

A.can't B.can C.mustn't D.must

3.(2010?贵阳) Is that boy Ken?

??It be him.He has gone to Zunyi

A.must B.can't C.needn't

4.Anna hasn't come to school today,I think she be ill

A.can B.has to C.may D.should

5.??Excuse me.Where are we going to have our class meeting?

一I'm not sure.Ask our monitor,please.He know.

A.can B.may C.need D.shall

6.Look at the car. it your brother?

A.Does, belong B.Is;belong to

C.Does, belong to D.Is;belonging to

答案速递

工.1.because of 2.belong to 3.too much 4.much too

Ⅱ.1~6 BDBCBC

六、学后反思

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