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1、Unit 3 Teenagers should be allowed to choose their own clothes 否定句：should+ not+ be +动词的过去分词 “不应该被” 如：青少年不应该被允许开车。 一般疑问句: 把should提到句首. “应该被吗？” 如：学生们应该被允许选择自己的衣服吗？ 1. sixteen-year-olds是一个“数词+名词+形容词”构成的复合词，用作名词， 意为“16岁的孩子们” “数词+名词+形容词”构成的复合词还可以用作形容词，连字符连接的名词用单数形式。 如：一个12岁的男孩 ； 一个5个月的婴儿 对比：sixteen-year-
2、olds/sixteen-year-old/sixteen years old例： Tom is a _ _ boy. The boy is _ . _ shouldnt work on weekends.4get their ears pierced 穿耳孔 “get have +宾语+过去分词”结构，意为 “请或让某人做了某事”，其中过去分词所表示的动作往往是主语让别人做的，不是句子中的主语做的。 如：我每月理一次发。 。 玛丽将叫人洗她的衣服。 5.I agree. They arent serious enough. 我同意。他们还不够严肃。表示 “同意”和 “不同意”的日常交际用语归
3、纳:表示同意：I agree（with you）. I think so.表示不同意：I disagree (with you). I dont (really) agree. I dont think so.l询问是否同意：Do you think so? Do you think? Do you agree (with me)?6. instead of +n./doing (句中)； 代替；而不是；对比：instead /instead of例： They talk _ _ doing homework. Why not ask the police _ ? 7.练习：( )1. We
4、_ to go to the movies on Friday nights. A. allowed B. are allowed C. were allowed( )2. I dont think children should be allowed _. A. drive B. driving C. to drive( )3. The students shouldnt get their ears _. A. pierced B. pierce C. to pierce( )4. They talk instead of _ homework. A. do B. to do C. doi
5、ng( )5. Do you think sixteen-year-olds should _ to drink? A. be allowed B. are allowed C. be allowing( )6. The girl concentrates _ her clothes. A. in B. of C. on( )7. It is a good idea for teachers _ teenagers to have less homework. A. to allow B. be allowed C. allowing( )8. We should learn _ each other. A. to B. of C. from 2
