高二英語Guessing about People教案
do the exercise 6
as a whole class, students discuss what the sentences 1-3 are referring to and match them with a, b and c.
guide students to analysis the modal verbs’ use in the past, in the future and now.
用在肯定句中：
對過去的推測：
may /might have +pp(過去分詞)
must have +pp(過去分詞)
對現在的推測：
must be + noun / adj
maybe/ must be + ving
must +v(原形)
用在否定句中
對過去的推測：
can’t have + pp(過去分詞)
對現在的推測：
can’t be + noun / adj
can’t +v(原形)
do the exercise 7, 8 and 9 to practise and consolidate modal verbs
do some best choice to consolidate modal verbs
1—do you know where david is? i couldn’t find him anywhere.
--well. he _____have gone far—his coat ‘s still here.
a. shouldn’t b. mustn’t
c. can’t d. wouldn’t
2 ---excuse me. is this the right way to the summer palace?
---sorry, i am not sure. but it _____be .
a. might b. will
c. must d. can
3. ---tom graduated from college at a very young age.
--- oh, he _____have been a very smart boy then.
a. could b. should
c. might d. must
4. ---i heard they went skiing in the mountains last winter.
---- it ____ true because there was little snow there.
a. may not be b. won’t be
c. couldn’t be d. mustn’t be
5. jack ______yet, otherwise he would have telephoned me.
a. mustn’t have arrived
b. shouldn’t have arrived
c. can’t have arrived
d. needn’t have arrived
6. ---didn’t you know that you went driving at 100 kilometers an hour, madam?
--- _____. my old car can do no more than 80, officer.
a. i may not have been
b. i couldn’t have been
c. i mustn’t have been
d. i shouldn’t have been
answers: 1.c 2.a 3.d 4.c 5.c 6.c