全国大众英语测验语法——must默示料到
1) must用在一定句中默示较有掌握的料到，意为"一定"。
2) must表对现在的状况或现在正发作的事变的料到时， must背面每每接系动词be的底细或活动动词的举行式。
You have worked hard all day.You must be tired.你辛苦干一整天，一定累了。（对现在情况的料到判定）
He must be working in his office.他一定在办公室义务呢。
比较：
He must be staying there.
他现在一定呆在那边。
He must stay there.
他必需呆在那。
3) must默示对已发作的事变的料到时，must要接完成式。
I didn't hear the phone. I must have been asleep.我刚才没有听到电话，我想必是睡着了。
4) must默示对过往某时正发作的事变的料到，must背面要接不定式的完成举行式。
---Why didn't you answer my phone call?
---Well, I must have been sleeping, so I didn't hear it.
5)否定料到用can't。
If Tom didn't leave here until five o'clock, he can't be home yet.如果汤姆五点才分开这儿，他此时一定还未到家。
关键字：must 料到 must 表料到 英语四级测验语法 英语三级测验语法 国家私事员测验料到