Unit 3 Teenagers should be allowed to choose their own clothes.

t: from the listening, we know that in our daily life teenagers should and should not be allowed to do a lot of things. in different countries people have different opinions on it. now please make a list of four things you should or shouldn’t be allowed to do. discuss your list with your partner: what should or shouldn’t you be allowed to do? get several groups of students to read their lists.sample 1: s1: do you think teenagers should be allowed to have mobile phones?s2: yes. it’s convenient for students and their parents to communicate each other. sample 2:s3: do you think teenagers should be allowed to have mobile phones?s4: no, i don’t. perhaps students pay more attention to short messages than study.sample 3:s5: do you think teenagers should be allowed to go on a trip by themselves?s6: yes, i do. they may ask “ travel agency ”to help them.step vii  grammar focusask the students to read the example sentences in the grammar focus box on page 19 together.t: (after that) in this class, we have learned “should be allowed to do” and “should not be allowed to do”. (pointing to the bb) who can tell us when to use them? what do they mean? from the sentences we have practiced, what can you conclude?s1: it’s a passive voice. in active voice, if we say, “should allow someone to do sth “, we can say, “someone should be allowed to do sth.” in passive voice sentence.t: thank you. anyone else can add it up?s2: if “shouldn’t someone to do sth.” we can use “someone shouldn’t be allowed to do sth”.t: of course. and if you think so, you can say____. (get students to fill in the blank)s3: i can say, “i agree.”t: quite right. if you don’t think so, you can answer_____. (get them to fill in it again)s4: i can answer, “i disagree.”t: yeah. besides, you can add your opinions after it.step viii  practice