课文详注 Further notes on the text
1．make up our minds 打定主意
make up one's mind是表示下定决心的一种固定用法。
2．Will you travel by sea or by air? 你们乘船去，还是乘飞机去？
这是一个选择疑问句。 by sea表示“乘船”。 by air表示“乘飞机”。
3．take a long time 花很长时间
语法 Grammar in use
The bread may be fresh.
He may be reading.
I may go abroad.
They may offer me a job.
（2）may 也可表示过去的可能性，过去式为may have (done)：
He was late. He may have been busy.
I went out last night, and she may have been reading.
It may have been right.
They may have been in the garden.
词汇学习 Word study
Mum always worries too much and it makes her tired.
She's worried that she might lose her job soon.
Doesn't it worry you that his health is becoming worse?
She is alway worrying him for presents.
Who's going to look after the garden when we are away?
Sally will help us to look after the children tomorrow.
Don't worry about me--I can look after myself.
The doctor advised him to look after his health.
练习答案 Key to written exercises
1 Yes, Martin is talking to Gary.
2 They may go abroad.
3 Gary's wife wants to go to Egypt.
4 They will travel by sea.
5 Yes, it may be cheaper.
6 Yes, it takes a long time.
7 Because his wife worries too much.
1 I'm not sure. They may be Australian.
2 I'm not sure. She may be Russian.
3 I'm not sure. They may be Chinese.
4 I'm not sure. They may have been bakers.
5 I'm not sure. She may have been a doctor.
6 I'm not sure. He may be the boss.
7 I'm not sure. She may be twenty-one.
8 I'm not sure. They may have been seven.
9 I'm not sure. He may have been over eighty.
10 I'm not sure. She may have been under fifty.
11 I'm not sure. It may be the 16th today.
12 I'm not sure. It may have been Wednesday yesterday.
13 I'm not sure. It may be the 20th today.
14 I'm not sure. It may be expensive.
15 I'm not sure. It may have been difficult.
16 I'm not sure. She may have been young.
17 I'm not sure. He may have been tired.
18 I'm not sure. They may be watching television.
19 I'm not sure. She may have been looking for a new job.
20 I'm not sure. They may be standing.