課文詳注 Further notes on the text
1．make up our minds,打定主意。
make up one's mind是表示下定決心的一種固定用法。
2．Will you travel by sea or by air?你們乘船去，還是乘飛機(jī)去？
這是一個(gè)選擇疑問(wèn)句。 by sea表示“乘船”。 by air表示“乘飛機(jī)”。
3． take a long time,花很長(zhǎng)時(shí)間。
語(yǔ)法 Grammar in use
情態(tài)助動(dòng)詞may表示可能性
may或might都表示“可能”、“也許”。通常既可以用may，也可以用might，不過(guò)might所表示的可能性要比may小，且當(dāng)情況是虛擬的時(shí)只能用might而不能用may。
（1）may 表示現(xiàn)在或?qū)?lái)的可能性：may+動(dòng)詞原形：
The bread may be fresh.
面包可能是新鮮的。
He may be reading.
他可能正在看書。
I may go abroad.
我可能出國(guó)。
They may offer me a job.
他們也許會(huì)給我提供一份工作。
（2）may 也可表示過(guò)去的可能性，過(guò)去式為：may have(done):
He was late. He may have been busy.
他遲到了。他可能一直很忙。
I went out last night, and she may have been reading.
我昨天晚上出去了，她可能一直在看書。
It may have been right.
也可能是對(duì)的。
Thry may have been in the garden.
他們可能那時(shí)一直在花園里。
請(qǐng)比較:
He is working。
他在工作。(對(duì)事實(shí)確信不疑)
He may be working.
池可能在工作。(對(duì)現(xiàn)在可能發(fā)生的事情的猜測(cè))
He must be working.
他肯定在工作。(對(duì)現(xiàn)在所發(fā)生事情有根據(jù)的推論)
He may have been working.
他那時(shí)可能正在工作。(對(duì)過(guò)去所發(fā)生事情的猜測(cè))
詞匯學(xué)習(xí) Word study
1．worry v.
（1）擔(dān)憂；發(fā)愁：
Mum always worries too much and it makes her tired.
媽媽總是過(guò)度憂慮，而這使她疲憊。
She's worried that she might lose her job soon.
她擔(dān)心也許很快她就會(huì)丟掉她現(xiàn)在的工作。
（2）困擾；使不安寧：
Doesn't it worry you that his health is becoming worse?
他的身體越來(lái)越差，你不擔(dān)心嗎？
She is alway worrying him for presents.
她總是纏著他要禮物。
2．look after
（1）照料，照顧，照管：
Who's going to look after the garden when we are away?
我們離開時(shí)誰(shuí)來(lái)照料花園呢？
Sally will help us to look after the children tomorrow.
薩莉明天會(huì)幫我們照看孩子們的。
（2）注意；關(guān)心：
Don't worry about me----I can look after myself.
別擔(dān)心——我會(huì)照顧好自己的。
The doctor advised him to look after his health.
醫(yī)生建議他要注意自己的健康。
1．make up our minds,打定主意。
make up one's mind是表示下定決心的一種固定用法。
2．Will you travel by sea or by air?你們乘船去，還是乘飛機(jī)去？
這是一個(gè)選擇疑問(wèn)句。 by sea表示“乘船”。 by air表示“乘飛機(jī)”。
3． take a long time,花很長(zhǎng)時(shí)間。
語(yǔ)法 Grammar in use
情態(tài)助動(dòng)詞may表示可能性
may或might都表示“可能”、“也許”。通常既可以用may，也可以用might，不過(guò)might所表示的可能性要比may小，且當(dāng)情況是虛擬的時(shí)只能用might而不能用may。
（1）may 表示現(xiàn)在或?qū)?lái)的可能性：may+動(dòng)詞原形：
The bread may be fresh.
面包可能是新鮮的。
He may be reading.
他可能正在看書。
I may go abroad.
我可能出國(guó)。
They may offer me a job.
他們也許會(huì)給我提供一份工作。
（2）may 也可表示過(guò)去的可能性，過(guò)去式為：may have(done):
He was late. He may have been busy.
他遲到了。他可能一直很忙。
I went out last night, and she may have been reading.
我昨天晚上出去了，她可能一直在看書。
It may have been right.
也可能是對(duì)的。
Thry may have been in the garden.
他們可能那時(shí)一直在花園里。
請(qǐng)比較:
He is working。
他在工作。(對(duì)事實(shí)確信不疑)
He may be working.
池可能在工作。(對(duì)現(xiàn)在可能發(fā)生的事情的猜測(cè))
He must be working.
他肯定在工作。(對(duì)現(xiàn)在所發(fā)生事情有根據(jù)的推論)
He may have been working.
他那時(shí)可能正在工作。(對(duì)過(guò)去所發(fā)生事情的猜測(cè))
詞匯學(xué)習(xí) Word study
1．worry v.
（1）擔(dān)憂；發(fā)愁：
Mum always worries too much and it makes her tired.
媽媽總是過(guò)度憂慮，而這使她疲憊。
She's worried that she might lose her job soon.
她擔(dān)心也許很快她就會(huì)丟掉她現(xiàn)在的工作。
（2）困擾；使不安寧：
Doesn't it worry you that his health is becoming worse?
他的身體越來(lái)越差，你不擔(dān)心嗎？
She is alway worrying him for presents.
她總是纏著他要禮物。
2．look after
（1）照料，照顧，照管：
Who's going to look after the garden when we are away?
我們離開時(shí)誰(shuí)來(lái)照料花園呢？
Sally will help us to look after the children tomorrow.
薩莉明天會(huì)幫我們照看孩子們的。
（2）注意；關(guān)心：
Don't worry about me----I can look after myself.
別擔(dān)心——我會(huì)照顧好自己的。
The doctor advised him to look after his health.
醫(yī)生建議他要注意自己的健康。