1704947100
They must be worrying about it.他们一定在为这件事发愁。
1704947101
1704947102
She may still be working in the office.她可能还在办公室工作。
1704947103
1704947104
We needn’t be waiting here.我们不必在这里等。
1704947105
1704947106
You shouldn’t be idling your time away. You should be doing some work.你不应当这样把时间混掉,你应当干点儿工作。
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1704947108
完成进行形式:
1704947109
1704947110
You must have been thinking of something else.你一定是在想别的事。
1704947111
1704947112
You should have been helping them.你是应当在帮助他们的。
1704947113
1704947114
What can she have been doing?她可能一直在干什么呢?
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1704947116
You needn’t have been staying up so late.你无需待到这么晚还不睡的。
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1704947118
被动形式:
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1704947120
Reference books may not be taken out of the room.参考书不可携出室外。
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1704947122
Adverbs mustn’t be put between the verb and the object.副词不能放在动词和宾语之间。
1704947123
1704947124
Can all this be finished in one day?这一切一天能干完吗?
1704947125
1704947126
This factor ought to be taken into consideration.这个因素应当考虑进去。
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1704947128
关于各个情态动词的用法可参阅有关各节。
1704947129
1704947131
613 moment—momentary—momentous—momentarily
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1704947133
moment表示“一会儿”、“时刻”:
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1704947135
Do be quiet a moment.请你安静一会儿。
1704947136
1704947137
Just a moment, she’s coming.稍等一会儿,她就来了。
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1704947139
I’m busy at the moment.我此刻正忙。
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1704947141
He caught the train at the last moment.最后一刻他赶上了火车。
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1704947143
the moment可引起一个状语从句:
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1704947145
The moment he spoke we recognized his voice.他一说话,我们就认出了他的声音。
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1704947147
He felt a thrill the moment he got into the theatre.他一进剧场就感到非常兴奋。
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1704947149
由moment可派生出两个形容词,一是momentary,一是momentous。
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