1、Unit3Unit3 Teenagers Teenagers should be allowed should be allowed to choose their own clothes.to choose their own clothes.English is spoken by many people.Da Changjin is watched on TV by many people.The tickets about heroes are sold out.Rice is planted in South China.He is said a good boy.Grammar被动
2、语态被动语态 1.“语态语态”表示表示主语主语和和谓语动词谓语动词之间的关系。之间的关系。英语中有英语中有“两态两态”的说法，即的说法，即主动语态主动语态和和被被动语态动语态，本单元中反复出现的，本单元中反复出现的should be allowed 就是一个含有情态动词（就是一个含有情态动词（should）的）的被动语态。被动语态。先看几个基本概念先看几个基本概念 主语是动作的发出者为主语是动作的发出者为主动语态主动语态 主语是动作的接受者为主语是动作的接受者为被动语态被动语态 只有及物动词才有被动语态。只有及物动词才有被动语态。2.被动语态的构成被动语态的构成 一般现在时的被动语态为：一般现
3、在时的被动语态为：主主am/is/are（not）过去分词）过去分词 一般过去时的被动语态为：一般过去时的被动语态为：主主was/were 过去分词过去分词如：如：Butter is made from milk.This house was built 100 years ago.The office is cleaned every day.The office was cleaned yesterday.现在进行时被动语态的构成为现在进行时被动语态的构成为 主语主语is/am/are+being 过去分词过去分词 再如：再如：My car is being repaired now.So
4、me new houses are being built near the park.公园附近在建一些房子。公园附近在建一些房子。现在完成时被动语态的构成为现在完成时被动语态的构成为 主语主语have/has been 过去分词过去分词 如：如：My key has been stolen.My keys have been stolen.I am not going to the party,I havent been invited.含有情态动词的被动语态含有情态动词的被动语态 情态动词情态动词be过去分词过去分词 A note had better be left to him.Tee
5、nagers should be allowed to wear their own clothes 这里我们列举了几个主要时态，那么其它时这里我们列举了几个主要时态，那么其它时态呢？态呢？一般将来时一般将来时 主语主语will be 过去分词过去分词 过去将来时过去将来时 主语主语would/should+be 过去分词过去分词 过去进行时过去进行时 主语主语was/were+being 过过去分词去分词 过去完成时过去完成时 主语主语had+been+过去分词过去分词 被动语态的被动语态的时态时态是由是由be的时态决定的，的时态决定的，be是是什么时态，全句就是什么时态，什么时态，全句就是
6、什么时态，be动词后面动词后面的过去分词不变。的过去分词不变。归纳：归纳：肯定句肯定句：主语：主语be+过去分词过去分词(by)否定句否定句：主语：主语be not 过去分词过去分词(by)一般疑问句一般疑问句：Be 主语过去分词主语过去分词(by)?特殊疑问句特殊疑问句：疑问词：疑问词be主语过去分主语过去分词词(by)3.被动语态的用法：被动语态的用法：（1）不知道或没有必要说明动作的执行者）不知道或没有必要说明动作的执行者是谁，不用是谁，不用by动作执行者短语动作执行者短语 Such books are written for children.这些书是为儿童写的。这些书是为儿童写的。I
7、 havent been told about it.没有人告诉我这件事没有人告诉我这件事（2）强调动作的承受者，这时应用）强调动作的承受者，这时应用by短语。短语。The cup was broken by David.（3）作客观说明时，常采用一种被动语态）作客观说明时，常采用一种被动语态句型句型 Its/was said/believed/reported/+that Its reported that about three hundred people were killed in this earthquake.据报道，这次地震中大约有三百人死亡。据报道，这次地震中大约有三百人死亡
8、。4.主动语态变为被动语态主动语态变为被动语态 把主动语态的句子变为被动语态的方法是：把主动语态的句子变为被动语态的方法是：（1）把原句中的宾语变为主语）把原句中的宾语变为主语 （2）动词改为被动形式，即）动词改为被动形式，即be+过去分词过去分词 （3）原来的主语，如果需要的话，放在）原来的主语，如果需要的话，放在by后面，如果没必要，可省略。后面，如果没必要，可省略。英语中有英语中有“十大动词十大动词”的说法，即的说法，即feel,hear,listen,have,make,let,look,watch,see,notice，这些词在主动句中，其后的动词不，这些词在主动句中，其后的动词不定
9、式不加定式不加to，但变被动句时必须加，但变被动句时必须加to.They take good care of my child.My child is taken good care of.他们把我的孩子照顾得很好。他们把我的孩子照顾得很好。I turned off the radio.The radio was turned off(by me).附：动词短语的被动语态附：动词短语的被动语态 take care of be taken care of cut down be cut down laugh at be laughed at look afterbe looked after（4
10、）由情态动词形成的被动语态）由情态动词形成的被动语态 含有情态动词的句子在变为被动语态时，在情态含有情态动词的句子在变为被动语态时，在情态动词后面加上动词后面加上be动词即可，其句型如下：动词即可，其句型如下：肯定句肯定句：主语情态动词（：主语情态动词（can,may,must）+be+过去分词过去分词 否定句否定句：主语情态动词：主语情态动词not+be+过去分词过去分词 疑问句疑问句：情态动词（：情态动词（Can,May,Must）主语）主语be过去分词过去分词.如：如：We should allow teenagers to surf the Internet.Teenagers sho
11、uld be allowed to surf the Internet.Can you use it?你会使用它吗？你会使用它吗？Can it be used?填空（完成被动语态填空）填空（完成被动语态填空）1.They often clean their classroom after school.（改为被动语态）（改为被动语态）Their classroom _ often _ by them after school.2.Li Lei gave Tom a new pen last week.（同上）（同上）A new pen _ _ _ Tom last week.iscleaned
12、was given by3.A lot of people in China can speak English now.（同上）（同上）English _ _ _ by a lot of people in China now.4.I have learned English for about two years.（同上）（同上）English _ _ _ for about two years.5.They will publish these story-books next month.（同上）（同上）These story-books _ _ _ next month.can be
13、 spokenhas been learnedwill be publishedWarming upWarming upSection ASection A由情态动词形成的被动语态由情态动词形成的被动语态 含有情态动词的句子在变为被动语态时，在情态含有情态动词的句子在变为被动语态时，在情态动词后面加上动词后面加上be动词即可，其句型如下：动词即可，其句型如下：肯定句肯定句：主语情态动词（：主语情态动词（can,may,must）+be+过去分词过去分词 否定句否定句：主语情态动词：主语情态动词not+be+过去分词过去分词 疑问句疑问句：情态动词（：情态动词（Can,May,Must）主语）主
14、语be过去分词过去分词.如：如：We should allow teenagers to surf the Internet.Teenagers should be allowed to surf the Internet.Can you use it?你会使用它吗？你会使用它吗？Can it be used?学校规章制度学校规章制度What are the rules at our school?Can you arrive late for class?No,we cant.1)Dont arrive late for class.Dont be late for school.不准上课迟
15、到不准上课迟到./上学迟到上学迟到2.Dont run in the hallways.Can you run in the hallways?No,we cant.不准在走廊里跑步不准在走廊里跑步.3)Dont listen to music in the classrooms or the hallways.不准在教室里或走廊里听不准在教室里或走廊里听音乐音乐.We can listen to music in the music room.4)Dont fight.不准打架不准打架.5)Dont talk in class.Dont talk with each other in cla
16、ss.不准在上课讲话不准在上课讲话.彼此之间不准在上课讲话彼此之间不准在上课讲话.Stop talking.6)Dont have long hair 7)for boys.男生不准留长发男生不准留长发.Dont smoke.(No smoking)不准吸烟不准吸烟./禁止吸烟禁止吸烟!1.1.Students Students should not be allowed toshould not be allowed to take mobile phones to school.take mobile phones to school.Do you agree?Or disagree?Do
17、 you agree?Or disagree?2.Students should be allowed to do 3.homework with friends.3.Students 3.Students should not be allowed toshould not be allowed to go out at night.go out at night.4.Students should not be allowed to take part-time job.目标语言（目标语言（Target Language）1.I think sixteen-year-olds should
18、 be allowed to drive.我认为应该允许我认为应该允许16岁的孩子开车。岁的孩子开车。2.I disagree.I think sixteen is too young.我不同意，我认为我不同意，我认为16岁这个年纪太年轻了。岁这个年纪太年轻了。3.Do you think thirteen-year-olds should be allowed to have part-time jobs?你认为应该允许你认为应该允许13岁的孩子们做兼职工作岁的孩子们做兼职工作吗？吗？4.No,I dont.不，我认为不应该。不，我认为不应该。5.Anna is allowed to wea
19、r her own clothes.安娜可以选择自己的衣服。安娜可以选择自己的衣服。6.They are not serious enough at that age.那个年龄的他们不够稳重。那个年龄的他们不够稳重。7.What rules do you have at home?你家有什么规定吗？你家有什么规定吗？Well,Im not allowed to go out on school nights.噢，我在上学的晚上不能外出。噢，我在上学的晚上不能外出。Listening(1b:P18)Listening(1b:P18)1.Anna can go to the mall with J
20、ohn.1.Anna can go to the mall with John.2.Anna wants to get her ears pierced.2.Anna wants to get her ears pierced.3.Anna is allowed to choose her own 3.Anna is allowed to choose her own clothes.clothes.T TF FT TListening textListening textWomanWoman:So,what are you doing this:So,what are you doing t
21、his afternoon,Anna?afternoon,Anna?GirlGirl:Im going to the mall with John.:Im going to the mall with John.He just got his drivers license.He just got his drivers license.WomanWoman:Im sorry.You cant go with:Im sorry.You cant go with John.I dont think sixteen-year-John.I dont think sixteen-year-olds
22、should be allowed to drive.olds should be allowed to drive.GirlGirl:But I have to go to the mall.:But I have to go to the mall.Gabys getting her ears pierced Gabys getting her ears pierced and I want to watch.and I want to watch.WomanWoman:I dont think sixteen-year-:I dont think sixteen-year-olds sh
23、ould be allowed to get olds should be allowed to get their ears pierced.They might their ears pierced.They might be sorry later.be sorry later.GirlGirl:I agree,but its fun to watch.Is it:I agree,but its fun to watch.Is it OK if we take the bus?OK if we take the bus?WomanWoman:Well,I guess so.:Well,I
24、 guess so.GirlGirl:Great!I want to buy a new:Great!I want to buy a new blouse at the mall,too.blouse at the mall,too.WomanWoman:What kind are you going to:What kind are you going to buy?Maybe I should go with buy?Maybe I should go with you.you.GirlGirl:Aw,Mom.Im not a child.I:Aw,Mom.Im not a child.I
25、 think teenagers should be think teenagers should be allowed to choose their own allowed to choose their own clothes.clothes.WomanWoman:Well,I just want to be sure:Well,I just want to be sure you get something nice.you get something nice.Oral Practice(1c:P18)Oral Practice(1c:P18)Sample dialogue 1:Sa
26、mple dialogue 1:A:I think teenagers should be A:I think teenagers should be allowed to go out with their allowed to go out with their friends.friends.B B:I agree.They are old enough.They:I agree.They are old enough.They can look after themselves well.can look after themselves well.Sample dialogue 2:
27、Sample dialogue 2:A:I dont think twelve-year-olds should be allowed to get their ears pierced.B:I agree.Its too silly to wear earrings in the school.Sample dialogue 3:Sample dialogue 3:A:I think students should be allowed A:I think students should be allowed to do homework with their friends.to do h
28、omework with their friends.B B:I disagree.They talk instead of:I disagree.They talk instead of doing homework.doing homework.Ex 1 Draw lines to make sentences.1 Little children shouldnt be allowed to2 Students should be allowed to3 Girls shouldnt be allowed to4 If you are late,you should be allowed
29、to 5 Students shouldnt be allowed toa.play after class.b.go into the classroom.c.watch TV too long.d.smoke.e.wear skirts in P.E classbecadWrite about two things you are allowed to do and not allowed to do.Sample answers:1.Im allowed to have some change with me.2.Im not allowed to have a fight with o
30、thers.3.Im allowed to ask for a leave if Im sick in P.E lesson.4.Im not allowed to copy others homework.1 我认为应该允许我认为应该允许16岁的孩子开车。岁的孩子开车。2 我不同意我不同意,我认为我认为16岁这个年纪太年轻了岁这个年纪太年轻了.3 你认为应该允许你认为应该允许13岁的孩子们做兼职工作岁的孩子们做兼职工作吗？吗？4.不，我认为不应该。不，我认为不应该。5 可以允许安娜选择自己的衣服。可以允许安娜选择自己的衣服。6 那个年龄的他们不够稳重。那个年龄的他们不够稳重。7 你家有什么规
31、定吗？你家有什么规定吗？噢，我在上学的晚上不能外出。噢，我在上学的晚上不能外出。1.I think sixteen-year-olds should be allowed to drive 我认为应该允许我认为应该允许16岁的孩子开车。岁的孩子开车。2.I disagree.I think sixteen is too young.我不同意，我认为我不同意，我认为16岁这个年纪太年轻了。岁这个年纪太年轻了。3.Do you think thirteen-year-olds should be allowed to have part-time jobs?你认为应该允许你认为应该允许13岁的孩子
32、们做兼职工作岁的孩子们做兼职工作吗？吗？4.No,I dont.不，我认为不应该。不，我认为不应该。5.Anna is allowed to wear her own clothes.可以允许安娜选择自己的衣服。可以允许安娜选择自己的衣服。6.They are not serious enough at that age.那个年龄的他们不够稳重。那个年龄的他们不够稳重。7.What rules do you have at home?你家有什么规定吗？你家有什么规定吗？Well,Im not allowed to go out on school nights.噢，我在上学的晚上不能外出。噢，
33、我在上学的晚上不能外出。2aListening Practice(2b:P19)It looks cool.Young people need to sleep.He needs to spend time with friends.He needs time to do homework.It doesnt look clean.4 1 5 2 3Listening textListening text插入声音MollyMolly:Larry is working late again:Larry is working late again tonight,Kathy.tonight,Kat
34、hy.KathyKathy:I know,Molly.I dont think:I know,Molly.I dont think sixteen-year-olds should be sixteen-year-olds should be allowed to work at night.allowed to work at night.Young people need to sleep.Young people need to sleep.MollyMolly:I disagree with you.Teenage:I disagree with you.Teenage boys ne
35、ver get tired.boys never get tired.KathyKathy:Well,maybe.But Larry:Well,maybe.But Larry shouldnt work every night.shouldnt work every night.MollyMolly:Oh,I agree.He needs time to:Oh,I agree.He needs time to do homework.do homework.KathyKathy:You know.Molly he should:You know.Molly he should really c
36、ut his hair.really cut his hair.MollyMolly:Oh,I dont know.Do you think:Oh,I dont know.Do you think its too long?its too long?KathyKathy:Yes,I do.It doesnt look clean.:Yes,I do.It doesnt look clean.And I think he should stop And I think he should stop wearing that silly earring.wearing that silly ear
37、ring.MollyMolly:Oh,I disagree.I kind of like it.:Oh,I disagree.I kind of like it.It looks cool!It looks cool!KathyKathy:You know what worries me-:You know what worries me-Larry doesnt seem to have Larry doesnt seem to have many friends.many friends.MollyMolly:Yeah,I know.I think he shouldnt :Yeah,I
38、know.I think he shouldnt work on weekends.work on weekends.KathyKathy:Oh I agree,Molly.He needs to:Oh I agree,Molly.He needs to spend time with friends.spend time with friends.MollyMolly:Like you and me?:Like you and me?KathyKathy:Maybe.:Maybe.1.sixteen-year-olds十六岁的青少年十六岁的青少年 它相当于一个名词它相当于一个名词,等于等于s
39、ixteen year-old kids.“一个一个16岁青少年的表达方式岁青少年的表达方式”a kid of sixteen a kid of sixteen years old a sixteen-year-old kidExplanation2.stop doing 停止做某事停止做某事 He should stop wearing that silly earrings.We two stopped talking.我们俩个停止了谈话。我们俩个停止了谈话。3.主主seem to do sth.好像好像 His temperature seems to be all right.他的体温
40、好像完全正常。他的体温好像完全正常。seem的其他用法的其他用法:(1)seem+形容词形容词 The question seems quite easy.那个问题好像很容易。那个问题好像很容易。(2)seem+名词名词 That seems a good idea.那好像是个好主意。那好像是个好主意。(3)It seems+that 从句从句 It seemed that nobody knew anything about the matter.看来没有人知道这件事。看来没有人知道这件事。PairworkPairwork(2c:P19)(2c:P19)Sample dialogue 1:S
41、ample dialogue 1:A:Do you think teenagers should be A:Do you think teenagers should be allowed to have mobile phones?allowed to have mobile phones?B:Yes.Its convenient for students B:Yes.Its convenient for students and their parents to communicate and their parents to communicate with each other.wit
42、h each other.Sample dialogue 2:Sample dialogue 2:A:Do you think teenagers should be A:Do you think teenagers should be allowed to have mobile phones?allowed to have mobile phones?B:No,I dont think so.Perhaps B:No,I dont think so.Perhaps students pay more attention to students pay more attention to s
43、hort messages than to their studies.short messages than to their studies.Sample dialogue 3:Sample dialogue 3:A:Do you think teenagers should be A:Do you think teenagers should be allowed to have a trip by allowed to have a trip by themselves?themselves?B:Yes,I do.They may ask some B:Yes,I do.They ma
44、y ask some travel agencies to help them.travel agencies to help them.1.1.我认为应该允许我认为应该允许我认为应该允许我认为应该允许1616岁的孩子开车。岁的孩子开车。岁的孩子开车。岁的孩子开车。I think sixteen-year-olds should be I think sixteen-year-olds should be allowed to drive.allowed to drive.Grammar focus (P19)Grammar focus (P19)Sentence structure:Sent
45、ence structure:“sb.+should/should not+be sb.+should/should not+be allowed to do.”allowed to do.”2.2.我不同意，我认为我不同意，我认为我不同意，我认为我不同意，我认为1616岁这个年纪太年轻岁这个年纪太年轻岁这个年纪太年轻岁这个年纪太年轻了。了。了。了。I disagree.I think sixteen is too young.I disagree.I think sixteen is too young.3.3.你认为应该允许你认为应该允许你认为应该允许你认为应该允许1313岁的孩子们做兼职
46、工岁的孩子们做兼职工岁的孩子们做兼职工岁的孩子们做兼职工作吗？作吗？作吗？作吗？Do you think thirteen-year-olds should Do you think thirteen-year-olds should be allowed to take part-time jobs?be allowed to take part-time jobs?4.4.安娜可以选择自己的衣服。安娜可以选择自己的衣服。安娜可以选择自己的衣服。安娜可以选择自己的衣服。Anna is allowed to wear her own Anna is allowed to wear her ow
47、n clothes.clothes.5.5.那个年龄的他们不够稳重。那个年龄的他们不够稳重。那个年龄的他们不够稳重。那个年龄的他们不够稳重。They are not serious enough at They are not serious enough at that age.that age.6.6.你家有什么规定吗？你家有什么规定吗？你家有什么规定吗？你家有什么规定吗？噢，我在周一至周五不能外出。噢，我在周一至周五不能外出。噢，我在周一至周五不能外出。噢，我在周一至周五不能外出。What rules do you have at home?What rules do you have
48、at home?Well,Im not allowed to go out Well,Im not allowed to go out on school nights.on school nights.Make a list of things teenagers should and should not be allowed to do.Reading(3a:P20)1.Can Sun Fei go out on school nights?No,she cant.2.Can Sun Fei study at a friends house?Yes,she can.3.Who is al
49、lowed to go to the movies with friends on Friday?Both Sun Fei and Wu Yu.4.Does Sun Fei have to be home by 10:00 p.m?Yes,she does.5.What isnt Wu Yu allowed to do?She isnt allowed to get her ears pierced.You can You can go to the movies go to the movies with friends on Friday.with friends on Friday.Yo
50、u can You can go to the movies go to the movies with friends on Friday.with friends on Friday.You can go shopping with You can go shopping with friends.friends.You can choose your own You can choose your own clothes.clothes.Dont get your ears pierced.Dont get your ears pierced.You have to be home by
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