三、情景交际
Is there a bank near here (in the neighborhood)?--Yes, there is. It’s on Center Street.
No, there isn’t.
【谈论能力】
--Can you swim?
--Yes, I can./ No, I can’t.
--What can you do?
--I can dance./ I can’t sing.
Where does she live?
--She lives in Paris.
【谈论到达某地的方式】
--How do you get to school?
--I ride my bike.
--How long does it take to get to school?
--It takes about 20 minutes.
--How far is it from your home to school?
--It’s about two kilometers.
四、语法详单
【情态动词can, must, have to】can,
1) 表示能力（体力、知识、技能）。
Can you lift this heavy box?（体力）
Mary can speak three languages.（知识）
Can you skate?（技能）
此时可用be able to代替。Can只有一般现在时和一般过去式；而be able to则有更多的时态。
I’ll not be able to come this afternoon.
当表示“经过努力才得以做成功某事”时应用be able to，不能用Can。如：
He was able to go to the party yesterday evening in spite of the heavy rain.
2) 表示请求和允许。
-----Can I go now?
----- Yes, you can. / No, you can’t.
此时可与may互换。在疑问句中还可用could,might代替，不是过去式，只是语气更委婉，不能用于肯定句和答语中。
---- Could I come to see you tomorrow?
---- Yes, you can. ( No, I’m afraid not. )
3)表示客观可能性（客观原因形成的能力）。
This hall can hold 500 people at least.
4) 表示推测（惊讶、怀疑、不相信的态度），用于疑问句、否定句和感叹句中。
must, have to
1) 表示必须、必要。
You must come in time.
在回答引出的问句时，如果是否定的，不能用mustn’t（禁止，不准），而用needn’t, don’t have to（不必）.
---- Must we hand in our exercise books today?
---- Yes, you must.
---- No, you don’t have to / you needn’t.
2) must是说话人的主观看法， 而have to则强调客观需要。must只有一般现在时， have to 有更多的时态形式。
1． The play isn’t interesting, I really must go now.
2． I had to work when I was your age.
3) 表示推测、可能性（只用于肯定的陈述句）
1． You’re Tom’s good friend, so you must know what he likes best.
2． Your mother must be waiting for you now.
例题
1. You________wear sports shoes when you climb a mountain．
A． can’t
B． shouldn’t
C． mustn’t
D． have to
【答案】D
2.Ann ________get home by six in the afternoon.
A． have B． has C． have to D． has to
【答案】D
【解析】
句意：Ann不得不在下午六点之前到家。短语have to do sth.表示不得不做某事；主语是第三人称单数，谓语动词要变第三人称单数。这里用have的第三人称单数has。根据题意，故选D。
3.— I go out with my friends,Mom?
—No,you can’t.You must do your homework first.
A． Must B． Have to
C． Do D． Can
【答案】D
苏19057182-3号