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1、1TeenagersTeenagers shouldshould bebe allowedallowed toto choosechoose theirtheir ownown clothes.clothes. PeriodPeriod 1 1 Learning aims 1、Section A 1a2c 2. 进行听力强化训练. 能够进行听力内容转述。 Learning points 1. 掌握词汇 pierce, license, silly, earring, instead of 2. 掌握句型 I dont think 16-year-olds should be allowed t
2、o drive I agree./I disagree. Do you think teenagers should be allowed to work at night? Yes, I do./No, I dont. 3. 掌握语法 含有情态动词 should 的被动语态结构：主+should be allowed to do sth Learning steps Step 1 Preview 1）选择他们自己的衣服 _ 2）允许某人做某事 _ 3）(应该)被允许做某事_ 4）获得某人驾驶执照_ 5）有兼职工作_ 6）16 岁的学生/孩子(复数) _ 7） 钉耳洞 _ 8）使.被做_ 9）
3、剪他的头发_ 10）和某人去购物/商业街_ 11）停止戴那个愚蠢的耳环_ 12）似乎做某事_ 13）看起来酷_ 14）花时间与某人在一起_ Step 2 Show 1、Teenagers should be allowed to choose their own clothes. 1)be allowed to do sth. 被允许做某事（被动语态）如： Eg.LiLy is allowed to go to Hangzhou. 莉莉被允许去杭州。=_ 2)allow sb. to do sth. 允许某人做某事（主动语态）如： eg.Mother allows me to watch TV
4、 every night. 妈妈允许我每晚看电视。= 3）allow doing sth 允许做 2. I dont think twelve-year-olds should be allowed to get their ears pierced. 我认为不应该允许 12 岁的孩子穿耳孔.1）该句是 think 的 从句，而且是否定形式，否定前移。当主句用一般现在时态时，从句可以用 任意时态；当主句用过去时态时，从句则要用相应的过去时。从句可以用情态动词。 eg.我认为学生不允许在学校穿自己的衣服。2）get their ears pierced 穿耳洞 get sth. done(过去分
5、词)；have sth. done 让/使（别人）做某事 如： eg. 我让别人修好我的车=_=_I want to have my hair cut. 我要理发. 3. He doesnt seem to have many friends. 2=It seems that he doesnt have many friends.=He seems not to have many friends. 看起来好像sb. seem to do sth. = It seems that +从句 eg： 他看起来好像很伤心。=_=_ =_ _ Step 3 Feedback课时练 P15 练习 St
6、ep 4 Development 语法 should + be allowed to do 英语有两种语态：主动语态和被动语态 主动语态表示主语是动作的执行者, 被动语态表示主语是动作的承受者 Cats eat fish. （主动语态）猫吃鱼。Fish is eaten by cats. (被动语态)鱼被猫吃。 被动语态的构成：由“助动词 be 及物动词的过去分词”构成。助动词 be 有人称、数和时态的变化， 其变化规则与 be 作为连系动词时完全一样。时态被动语态结构例句一般现在时am are +过去分词 is English is spoken in many countries.一般过去
7、时was +过去分词 were + 过去分词This bridge was built in 1989.情态动词can/should may +be+过去分词 must/The work must be done right now.被动语态的用法：当我们不知道谁是动作的执行者，或者没有必要指出谁是动作的执行者，或者只 需强调动作的承受者时，要用被动语态。语法语法-被动语态被动语态1. “语态”表示主语和谓语动词之间的关系。英语中有“两态”的说法，即主动语态和被动语态，先看几个基本概念：主语是动作的发出者为主动语态；主语是动作的接受者为被动语态；只有及物动词才有被动语态。2. 被动语态的构成（
8、1） 动作的接受者成了句子的主语，就应该用被动语态。一般现在时的被动语态为：主一般现在时的被动语态为：主amam / / isis / / areare （notnot）过去分词）过去分词一般过去时的被动语态为：主一般过去时的被动语态为：主waswas / / werewere 过去分词过去分词如：Butter is made from milk. This house was built 100 years ago. 以前我们学过的 was / were born 生于，就是一个被动语态， born 是个过去分词（bear）When were you born ? I was born in
9、 1989. 如果要特别强调动作或行为的执行者，句子后面需接 by ，译为“被（由）”如：We were woken up by a loud noise .我们被嘈杂的声音吵醒。（2）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isis / / amam / / areare + + beingbeing 过去分词过去分词” ，如：My car is being repaired now. 3Some new houses are being built near the park. 公园附近在建一些房子。（3）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
10、havehave / / hashas beenbeen 过去分词过去分词” ，如：My key has been stolen. My keys have been stolen. I am not going to the party, I havent been invited. （4）含有情态动词的被动语态构成为含有情态动词的被动语态构成为“情态动词情态动词bebe过去分词过去分词” ， 如：A note had better be left to him. Teenagers should be allowed to wear their own clothes这里我们列举了几个主要
11、时态，那么其它时态呢？一般将来时一般将来时 主语主语willwill bebe 过去分词过去分词过去将来时过去将来时 主语主语wouldwould / / shouldshould + + bebe 过去分词过去分词过去进行时过去进行时 主语主语waswas / / werewere + + beingbeing 过去分词过去分词过去完成时过去完成时 主语主语hadhad + + beenbeen + +过去分词过去分词被动语态的时态是由 bebe 的时态决定的时态决定的，be 是什么时态，全句就是什么时态，be 动词后面的过去分词不变。归纳：肯定句：主语be + 过去分词（by ）否定句：主
12、语be not 过去分词（by ）一般疑问句：Be 主语过去分词（by ）? 特殊疑问句：疑问词be主语过去分词（by ）3. 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，不用 by动作执行者短语Such books are written for children. 这些书是为儿童写的。I havent been told about it . 没有人告诉我这件事（2）强调动作的执行者，这时应用 by 短语。 The cup was broken by David. （3）做客观说明时，常采用一种被动语态句型ItsIts / / waswas saidsaid / / bel
13、ievedbelieved / / reportedreported / / + + thatthat 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。4. 主动语态变为被动语态把主动主动语态的句子变变为被动被动语态的方法方法是：（1）把原句中的宾语变为主语（2）动词改为被动形式，即 be+过去分词（3）原来的主语，如果需要的话，放在 by 后面，如果没必要，可省略。注意事项：主动语态变成被动语态应注意应注意事项从主动语态到被动语态的过程中主语、谓语动词
14、、宾语都发生变化。注意主格与宾格的变化形式。注意主语的人称及数的变化对 be 动词带来的影响。注意 be 动词的时态形式取决于原主动语态的动词时态形式。5. 被动语态的几种类型被动语态的几种类型（1 1）有两个宾语的句子的被动语态（直接宾语，间接宾语）常见的接双宾语的动词有 通常这种句子可以改为以“人”当主语；和以“物”当作主语的两种被动语态。如：He gave me a book. I was given a book by him. （以 I 做主语）4A book was given to me by Tom. （以物 book 做主语）He teaches us English. We are taught English by him. （以人当主语）English is taught us by him. （以物做主语）（2 2）含有宾语补足
