初三英语第五单元知识点讲解解析

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2021年02月10日 16:25
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2021年2月10日发(作者:无心法师4)


学科教师辅导讲义




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辅导科目:英语


















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授课日期及时段





教学目标





1.



掌握本单元知识点



2.



掌握被动语态





学习内容





Unit 5 What are the shirts made of?



Section A 1 (1a


-


2d)




Language points



n.


作玻璃讲时,为不可数名词,表达数量则用。




piece(s) of glass


glass


作玻璃杯讲是可数名词



We can see everything through glass.


Three pieces of window glass were broken because of strong wind.



2. be made of.


由…制(构)成。后接构成某物质的原料。



【例句】



This skirt is made of silk.


这件裙子是用丝绸制成的。



【横向辐射】


be made of/from/up of


的区别



1) be made of


表示制成成品后,仍可看出原材料是什么


.


保留原材料的质和形状,制作过程仅发生物理变化。



【例句】



The kite is made of paper


.风筝是用纸做的。



2)


be


made


from


表示制成的东西完全失去了原材料的外形或特征,或 原材料在制作过程中发


生化学变化,在成品中已无法辨认。



【例句】


The paper is made from wood


.纸是木头做的。



Butter is made from milk


.黄油是从牛奶中提炼出来的。



3) be made up of


用…构成或组成的。指人、物皆可,指结构成分



【例句】


Our class is made up of six groups.


我们班是由六个小组组成的。



4) be made in


+地点



意为“在……(地方)制成”;



5) be made by


意为“被(某人)……制成



【课堂检测】



一、单项选择:



1.



What ________ the shirts __________?



Cotton.


A. are; made from B. are; made of C. is made


2.



Is your blouse made _______ silk?


—Yes. It’s made ______ Shanghai.



A. of; from B. of, in C. from, in


3.



Your skirt looks nice. What is it made ________?



Silk.


A. in B. from C. of


2. For example, Anxi and Hangzhou are






widely known for their tea.



widely



adv


.




广泛地;普遍地



wide (


形容词


) + ly






widely (


副词


)



e.g. Gas is widely used for cooking and heating.








天然气被广泛地用于做饭和取暖。



3. Where is tea produced in China?





produce



v


.



生产;制造;出产





英语中有


produce, gro w



plant


三个动词均可用来描述 农作物及植物的



种植;


< p>
生产;生长



,但有所区别。




produce

< p>
指农作物成产量化地



出产



,或自然地



生长出;长出;结出


(


果实


)”




e.g. This region produces over 50% of the country’s rice.








这个地区出产整个国家


50%


以上的大米。








These trees can produce very good apples.








这些树能结出优质的苹果。



grow


表示



种植;使生长

< br>”


,着重指种植以后的栽培、生长过程。



e.g. These plants grow from seeds.


这些植物从种子生长而来。









The villagers grow coffee and corn to sell in the market.









村民们种植咖啡和玉米好拿到市场上去卖。


< br>plant


侧重



栽种;播种< /p>



这一行为,指把种子或秧苗种到土壤里使之生长。



e.g. How many trees have you planted this year?



今年你们种了多少棵树?








They planted tomatoes and carrots in their backyard.








他们在后院栽种了西红柿和胡萝卜。



3. For example, Anxi and Hangzhou are widely known for their tea.



be known for



……< /p>


闻名;为人知晓



be known for = be famous for



e.g. Suzhou is known for its beautiful gardens.








苏州以其美丽的园林而闻名于世。




be known as



be known for



be known as


意为



作为


……


而著名




be known for


意为




……


而著名





根据句意用


be known as



be known for


的适当形式填空。



1) Han Han ____________ his writings.



2) As we know, Yao Ming __________ a basketball player.



5. Well, as far as I know, tea plants are grown on the sides of mountains.



as far as I know



据我所知



on the sides of


在。



。的边上



Eg; Is that factory on the side of the river?




the leaves are ready, they are picked by hand and then are sent for processing.



are picked by hands


意为




被手工采摘






解析


1



by hand


用手工(制作)


= handmade


手工做的





常用词组:



at hand


(在时间或距离上)接近
















out of hand


难以(无法)控制







in hand


在掌握中




Section A 2 (3a


-


3c)




1. no matter


无论;不论



no matter


意为



无论




“what, who, which, where, how”


等疑问词连用,引导让步状语从句。



e.g. No matter what you say, I won’t believe you.









无论你说什么,我都不会相信你。








No matter when you are free, you can come here for a cup of tea.








无论你什么时候有空,都可以来这里喝杯茶。



2. local




adj


.



当地的;本地的



e.g. The local people are always friendly to tourists.


当地人对游客一向很热情。



3. avoid


v.



避免;回避



avoid doing sth.




避免做某事



avoid


后面常跟名词、代词或动名词作宾语,但不能跟不定式作宾语。



e.g. They tried to avoid making Mrs. Li angry.


他们尽量避免让李老师生气。








Jack kept back his anger and avoided a fight.




杰克压住了怒火,避免了一场斗殴。



4. mobile


adj


.


可移动的;非固定的



mobile phone


手机



e.g. Would you please give us some details of your mobile phone?









你能给我们一些你的手机的细节吗?



5. everyday


adj.



每天的;日常的



everyday< /p>



every



day


构成的合成词。


everyday


是形容词


,


仅用在名词前作定语,不能单


独使用。



e.g. everyday life


日常生活


everyday activities


日常活动



everyday



every day


辨析



every day< /p>


是副词短语,意为



每天



,用作时间状语。



e.g. The teacher asked us to read English books every day.



老师让我们每天都要读英语。



VII


. Exercises



用括号中单词的适当形式填空




1. One who goes to ______ (French) never fails to visit Paris.



2. How soon would you like to have these ___________ (product) done?




3. In the crowd, Sam looked aside to avoid _________ (see) Jane and Mary.



4. Is this kind of bicycle______ (make) in Shanghai?



5. The ______ (locally) government listed him as an elderly person of no home.



Section A 3 (Grammar Focus


-


4c)



Summary






英语的语态是通过动词形式的变化 表现出来的。英语中有两种语态:主动语态和被动语态。



< /p>


被动语态的谓语部分的结构是


be+


过去 分词。被动语态的句子有时态和人称,数的变化,这个


变化都由




be


来承担,后面的过去分词不变。 被动语态中的动词一定是及物动词或构成及物动词短语的


词语。






主动语 态表示主语是动作的执行者。巧记为:主动、主动、主去动。




例如:


Many people speak English.





谓语:


speak


的动作是由主语

< br>many people


来执行的。





被动语态表示主语是动作的承受者 ,即行为动作的对象。巧记为:被动、被动、主被动。


例如:


E nglish is spoken by many people.


主语

< p>
English


是动词


speak


的承受者。







例如:


He opened the door.


他开了门。


(


主动句


)





The door was opened.


门被开了。


(


被动句


)





二、被动语态的构成





被动语态由“助动词


be


+及物动词的过去分词”构成。人称、数和时态的变化是通过

< p>
be


的变化表现出来的。现以


teach


为例说明被动语态在各种时态中的构成。



一般 现在时:


am



is

< br>/


are



taught



一般过去时:


was



were



taught





一般将来时:< /p>


will



shall be



taught be going to +be+taught





现在进行时:


am



i s



are being



taught





过去进行时:

have



has been



taught


< p>
现在完成时:


have



has been



taught



过去完成时:


had been +taught



过去将来时


: should/would +be+taught



带情态动词:


can/may/must+ be+taught




1.


一般现在时



History is made by the people.



历史是人民创造的。



2.


一般过去时



These new cars were made in Tianjing in 1994.



这些新车是


1994


年在天津生产的。



3.


一般将来时



Li Ming will be asked to attend the lecture.



李明将被邀请参加讲座。



4.


现在进行时



A new railway is being built.



一条新铁路正在修建。



5.


过去进行时



The roads were being widened.



路那时正在加宽。



6.


现在完成时



He has been sent to work in Shanghai.



他已经被派往去上海工作了。



7.


过去完成时



A new hotel had been built when I got there.



我到那儿时,一座新旅馆已经建好了。



8.


过去将来时



He said a new hotel would be built in two months.



他说两个月后新旅馆就会建好了的。



被动语态的否定句和疑问句



English is not used in European countries.



欧洲国家不使用英语。



Is English used in European countries




欧洲国家使用英语吗?



1.


否定句



凡是有


be


动词的句子,其否定句都是在


be


动词的后面加


not


,被动语态 也不例外。



This song is not liked by young people.



这支歌不被年轻人所喜爱。



Rome was not built in a day.



罗马城不是一天建成的。



2.


被动语态的疑问句




Be


动词放在句首,


就构 成了被动语态的一般疑问句;


而疑问词


+


一般疑问句就构成了被动语


态的特殊疑问句了。



Is Chinese used only in China




汉语只是在中国使用吗?



Were these computers made in the U.S.A.




这些计算机是美国制造的吗?



Yes



they were.


是的。



No



they weren't.


不是。



What language is spoken in China




中国说什么语言?



Chinese.



汉语。



What was it made of




它是什么制造的?



It was made of bamboo.



是竹子造的。



.



三、被动语态的用法





(1)


不知道或没有必要说明动作的 执行者是谁




例如:





Some new computers were stolen last night.





一些新电脑在昨晚被盗了。


(


不知道电脑是谁偷的


)





This book was published in





(2)


强 调动作的承受者,而不强调动作的执行者。





例如:


the window was broken by Mike.





This book was written by him.





Eight hours per day for sleep must be g uaranteed.


每天


8


小时睡眠 必须得到保证。





歌诀:谁做的动作不知道,说出谁做的没有必要;





动作承受者需强调,被动语态运用到。


/





四、主动语态变被动语态的方法





(1)


把主动语态的宾语变为被动语 态的主语。




(2)


把谓语变成被动结构


(be


+过去分词


)





(


根据被动语态句子里的主语的人称 和数,以及原来主动语态句子中动词的时态来决定


be


的形式< /p>


)






(3)


把主动语态中的主语放在介词


by


之后作宾语,将主格改为宾格。例如:




All the people laughed at him.





He was laughed at by all people.





They make the bikes in the factory.





The bikes are made


by them



in the factory.





歌诀是:宾变主,主变宾,


by


短语后面跟。





谓语动词变被 动,


be


后“过分”来使用。





五、含有情态动词的被动语态





含有情态动词的主动句变成被动句时,由“情态动词+


be


+过去分词”构成,原来带


to


的情态动词变成被动语态后“


to


”仍要保留。





歌诀是 :情态动词变动,情态加


be


加“过分”


,原来带


to


要保留。例如:





We can repair this watch in two days.





This watch can be repaired in two days.





You ought to take it away.






It ought to be taken away.





They should do it at once.




It should be done at once.



He is going to make it.



→It is going to be made



by him



.



We can change water into ice.



我们可以把水变成冰。



Water can be changed into ice.



水可以被变成冰。



You must not take out any books.



你不可以拿走任何一本书。



Any books mustn't be taken out by you.




六、使用被动语态应注意的几点


< /p>


1.


带双宾语的主动结构的句子,变为被动语态结构时,只能将其 中的一个宾语变为主语,另一


个宾语仍要保留。如果保留的是间接宾语,要在间接宾语之 前加上介词


to



for.

< p>
如:



She sent me a novel on my birthday.



I was sent a novel on my birthday.



She sent a novel to me on my birthday.



A novel was sent to me on my birthday.



We are taught English by her.



English is taught to us by her.



同样类型的:


give sb sth/buy sb sth





give sth to sb/ buy sth for sb.





2.


当使役动词和感官动词(如


make



let



hear



see


等)用与被动语态时,不定式必须带


to





The boss made him work over twelve hours a day.





He was made to work over twelve hours a day.





3.


短语动词用于被动语态应作为一个整体,不能丢掉其中的介词或副词。如:





The meeting has been put off.





4.


有些及物动词和及物动词短语< /p>


(


多表示


“静态”


)


不能用于被动语态,


常见的有


ha ve




cost




last




hold




fit




agree with


等。





5.


有些 不及物动词以主动形式表示被动意义,


常见的有


cut




wash




write




sell


等。


如:




The shirt washes well.



动词短语的被动语态



take care of


照看



→be taken care of



cut down


砍倒



→be cut down



laugh at


嘲笑



→be laughed at



look after


照料



→be looked after



必背!



被动语态的动词短语



以下这些短语本 身即是被动语态的形式,不需再加


“by”


< br>


be covered with





……


覆盖着



be surprised at





……


感到 惊奇



be known to




出名



be interested in





……


感兴趣



be made of



from






……


制造的



主动语态不能变为被动语态的情况



学 了被动语态,有些同学认为主动句和被动句可以随便换用,没什么差别,这是一个错觉,在


一般情况下主动句比被动句用得多。同时,要注意有些情况下是不能变为被动语态的。



动词的变化



动词通常有下述的五种变化形态,以


use


为例:



原形


→ use



第三人称单数现在式


→ uses



过去式


→ used



过去分词


→ used



现在分词


→ using



1.


当宾语是反身代词时



The man introduced himself as Mr. Parker.



那个人自我介绍说他是帕克。



I found myself in the park.



我不知不觉地来到公园里。



2.


当谓语是表状态的及物动词时



Does the pair of new shoes suit you




那双新鞋你穿着合适吗?



We will have a meeting.




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