1、Unit 3 Teenagers should be allowed to choose their own clothes情态动词(can could shouldmustmay)be动词的过去分词。1. -Your city looks beautiful! Yes. Lots of trees and flowers _last year. A. are planted B. have planted C. were planted D. were planting2. The computers must _ before you leave. A.turn on B. turn of
2、f C . be turned on D. be turned of3. About 500 cars _ in the factory next month.A. were made B. will make C. has been made D. will be made 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，或者只强调动作的承受者时，要用被动语态。疑难解析： -We have a lot of rules at my house. -So do we. So do we 为倒装句, 其结构是“So + be 动词/助动词/情态动词 另一主语”, 在时态上应
3、和上一句保持一致。应翻译为“我们也是这样”, 用英文解释是：We have a lot of rules at my house, too. 例如：1. They can play the guitar. _ _ _. (我们也是) 2. Tom went to the zoo last year, _ _ _ (我也是) 3. I read English every day , _ _ _ (Amy 也是) 4. We are soldiers， _ _ _ (他们也是) 5. He will play soccer this Sunday. _ _ _ (我们也是) 6. I like
4、fruit, _ _ _.(他们也是)思考：1. They cant play the guitar, _ _ _. (我们也是)比较：“So + 同一主语+ be 动词/助动词/情态动词”：这一结构表示赞同前者已经陈述过的观点或情况，译为“的确如此”如: -She came to school by bike this morning. -So she did. 的确如此熟背重点短语、句子：1.考试失败（不及格） 通过考试 参加考试 2.对某人严格要求 . 对某事严格要求 如：我们的老师不但对我们要求严格，而且对工作也很严格。 Our teachers are not only very us, but also very their work.1、学生应该被允许和朋友一起做作业。 2、我同意。他们说话而代替了做家庭作业。 3、我认为青少年不应该被允许开车。 4、我认为学生不应该做兼职。 5、你认为16岁的孩子应该被允许选择自己的衣服吗？ 6我被允许和朋友们去购物。 7、我不被允许上学的晚上外出。 8、我被允许熬夜到晚上11点。 9、Peter不被允许上课迟到（get to class late）。
