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1、Unit 4 Teenagers should be allowed to choose their own clothes Section A一、学习目标学会使用should be allowed to句型谈论允许或不允许做的事情。 学会针对允许或不允许做的事情发表自己的观点，叙述同意或不 同意的理由。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：teenager，sixteen-year-olds，decision，present，experience，member，point 动词：allow，stop，wear，seem，look，need，disagree，fail，volu
2、nteer，succeed，reply，achieve，teach 形容词：silly，part-time，enough，sleepy常考短语be strict with，be good for，get noisy, 1earn sth. from sb.，have an opportunity to dosth.，at least，once a week，reply to，instead of，the other day，at present，bothand 经典句型1. I dont think sixteen-year-olds should be allowed to drive.2.
3、 So do we.3. Our teachers believe that if we did that, we would concentrate more on our clothes than our studies.重点语法被动语态三、新课导引 四、教材精华SECTION A1Teenagers should be allowed to go out with their friends every night.应该允许青少年每天晚上和他们的朋友一起外出。(1)teenager是一个合成名词，意为“青少年”，指13至19岁的人。teenage是形容词，意为“十几岁的”， 指13至19
4、岁这一年龄段。(2)should在该句中是情态动词，表示劝告和建议，意为“应当，应该”。 You should join the English club.你应该加入英语俱乐部 You should study hard. 你应该努力学习。 中考链接【2011哈尔滨】28. In order to speak English better, we _be afraid of losing face. Because the most important thing is to practice. Remember, practice makes perfect.A. should B. sho
5、uldntC. have to答案：B【解析】考查情态动词 根据句意：为了说好英语，我们不应当害怕丢面子。用shouldnt。（2010新疆）You have made some mistakes again. I think you be more careful next time. Acan Bmay Cshould Dwould解析：本题考查情态动词的用法。can能,会；may可以；should 应该；would 将要。句意：你又犯了一些错误。我认为下次你应该更加小心。根据句意空格处应填should。其余三项均不符合题意。 答案：C (2008芜湖中考) We _ fight agai
6、nst pollution.A. may B. should C. mustnt D. neednt【解析】选B。考查情态动词should的用法。由常识可知“我们应该与污染作斗争”，故选B。(3)should be allowed 是含有情态动词的被动语态结构，其中的allowed 是过去分词。含有情态动词的被动语态的结构为：情态动词+be+及物动词的过去分词。(4)allow动词，意为“允许，准许”，常用于下列结构中：allow sb. to do sth.允许某人做某事The teacher allowed him to go into the classroom.老师允许他进教室。all
7、ow doing sth.允许做某事We dont allow smoking in public.我们不允许在公共场所吸烟be allowed to do sth.被允许做某事 Passengers are not allowed to smoke.乘客不允许吸烟。注意allow sb. to do sth.中，sb. 作宾语，动词不定式作宾语被足语；allow doing sth.中，doing sth.是动名词短语作宾语。无allow sb. doing 的用法。辨析：allow与letallow指默许，是一种较为消极的允许，常用结构为：let指“让，允许”，不含有限制的意思，常用结构为
8、：My teacher allowed me to go home.我的老师允许我回家。My teacher let me go home.我的老师让我回家。2Students should not be allowed to have part-time jobs.不应该允许学生做兼职工作。part-time是合成形容词，意为“兼职的，业余的，非全日制的”，其反义词是full-time“全职的”。In America many students do part-time jobs.在美国，许多学生做兼职工作。辨析：job与workJob作“工作”讲时，指零散的、具体的工作，是可数名词。wor
9、k作“工作，劳动”讲时，属通用名词，不指某项具体的工作，是不可数名词。常用短语 at work“在工作”一言辨异He looked for work for several months and at last he found a job most suitable for him.他一连找了好几个月的工作，最后终于找到了一份非常适合自己的工作。3. Sixteen-year-olds should be allowed to get their ears pierced.应该允许16岁的青少年打耳孔。(1)sixteen-year-olds意为“16岁的人”。I think sixteen
10、-year-olds should be allowed to choose their own clothes. 我认为16岁的人应该被允许挑选自己的衣服。温馨提示sixteen-year-olds在此用作名词，相当于sixteen-year-old boys and girls，故用复数形式。(2)本句中，get为使役动词，相当于make或have，意为“使，让”。gethave +sth. + v.- ed意为“使某事被做；请某人做某事”。 I got my car repaired我让人修理了我的汽车。 When are you doing to get your hair cut?你
11、打算什么时候去理发?4I dont think sixteen-year-olds should be allowed to drive 我认为不应该允许16岁的青少年开车。 若宾语从句跟在think，believe, suppose，expect等表示“想，认为”的动词之后，而且主句的主语又是第一人称时，在否定从句时，句子的否定体现在主句上，这种现象叫否定转移。 I dont think its good idea我认为那不是一个好主意。 I dont think he is right我认为他不对。注意 在这种主从复合句中；反意疑问句附加疑问句的主语要用从句的主语。I didnt thin
12、k he was clever, was he? 我认为他不聪明，是吗？5He should stop wearing that silly earring他应该停止戴那个愚蠢的耳环。 (1)stop动词，表示“停止，阻止”。常用于下列结构： stop doing sth指的是停止正在做的事； Why did he stop talking? 他为什么停止了讲话?stop to do sth. 指的是停下手头所做的事情，去做另一件事。 He stopped to have a look at the boy他停下来看了看那个男孩。 stop sb. from doing sth. 意为“阻止某
13、人做某事”。 The workers had to work for hours to stop the ship from going down 工人们不得不工作数小时来阻止船下沉。 cant stop doing sth. 意为“忍不住做某事”。 I couldnt stop laughing when I heard it听到那件事，我忍不住大笑起来。中考链接 【2011四川成都】44. While we were running on the playground, Jack suddenly stopped and lay on the ground, so we all stopp
14、ed what was wrong with him.A. to run; to see B. running; seeing C. running; to see答案：C 【解析】考查非谓语动词。“stop doing sth.”停止正在做的事情；“stop to do sth.”停止原来做的事情去做另一种事情。句意：我们正在操场上跑步的时Jack突然停下来（停止跑步）躺在地上，我们都停下来（停止跑步）看他出来什么事儿（做另一件事）。【2011四川广元】17.Since you are tired, youd betterand have a good rest.A. stop to stu
15、dy B. stop study C. stop studying答案：C 【解析】非谓语动词的用法。stop to do sth指停下来去做（另一件事）；stop doing sth指停止正在做的事，根据句意“既然你累了，你最好停止学习，去好好休息一下。”选C。【2011四川南充】25. Class is beginning. Please stop_ .A. talking B. to talk C. talk答案：A 【解析】考查非谓语动词。stop to do sth.停下来（正在做的事）去做其他事 stop doing sth.停止正在做的事。句意：上课了，请停止说话。【2011山东
