Unit 6 pets 第四课时(Pages94~97)
you must arrive at school at 8.10 in the morning.
you ought to walk slowly on the stairs .
you should hand in your homework to the monitor.
the class has to choose a class monitor .ask
what are his/her duties?e.g.,
he /she must collect the exercise books .
he/she should make sure that students follow the schoo l rules.
7. ask students to read the four letters in part b2 carefully. make sure that they understand the messages well. ask them remember and to check the words in th eir dictionaries.
8. in part b3, students can read some of the answers which give advice to the writer of each letter. students check answer s with a partner.
9. divide the class into groups of four .one group comes to the front of the class and each member reads one letter at a time .
a representative from another group responds by reading his/her advice. you could turn this into a competition. if the sentence is correct ,the group wins a point .if not ,the chance goes to the next group. students correct their own sentence.
we use ‘should’and ‘should not/shouldn’t’to give advice and to
tell people what is the best or right thing to do.’ought to’and
‘ought not to/oughtn’t to’have similar meanings.
( 但 前者隐含了个人的观点,因此语气稍弱;后者语气稍强,常用于指
we use ‘must’ to tell people that it is neces sary or very important to do something.we use ‘must not/mustn’t’to tell people that it is necessary or very important not to do something.
needn’t.(如果表示 受客观情况所逼,不得不做某事,常用‘ have to’.)
_______ i finish my homework today?no,you____ __./yes,you_____.
you _______ _______stay at home becau se it is______.
(2)must not/mustn’t表示“ 不允许”.
你千万别玩火.you ______ ______ _______ fire.
when the traffic lights are red,you ______ ______ the road.
who’s that man?it ______ ______ our headmaster.
it ______ _______him. he has gone to beijing.
ask more able students to come up with their own advice to the pet owners .tell them to choose two things you should (not)ought (not) to do when you own a pet. they then write sentences givi ng instructions. ask students to read out their advice to the class.