新概念英语第一册lesson101,新概念英语第一册Lesson127~132语法及单词解析
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新概念英语第一册Lesson127~128语法及单词解析
语法 Grammar in use
表示猜测和推断的情态助动词must和can't
表示最有力的推论的最常用的形式是must和can't。这时，它们一般与系动词be连用。肯定的推断用 must be来表示，否定的推断用 can't be来表示，而不用mustn't。请看例句：
He can't be a doctor. He must be a dentist.
他不会是个医生。他一定是位牙医。
She can't be Danish. She must be Norwegian.
她不会是丹麦人。她一定是挪威人。
He can't be shaving. He must be having a bath.
他不可能在剃胡子。他一定是在洗澡。
It can't be cheap. It must be expensive.
它不会便宜。一定价格昂贵。
He can't be ill. He must be tired.
他不可能生病了。他肯定是累了。
词汇学习 Word study
1.famous adj.
(1)的;出名的：
She's a very famous actress.
她是一位非常的女演员。
(2)<口>第一流的;极好的：
To my surprise, he had a famous appetite.
让我感到惊讶的是，他有着极好的胃口。
This is famous weather for a stroll.
这是散步最理想的天气。
2.at least
(1)至少：
This antique vase is worth at least ￡20,000.
这只古花瓶至少价值两万英镑。
At least, you should consider our suggestions.
至少你应该考虑一下我们的建议。
(2)反正;无论如何;不管怎样：
He has no plans to go abroad yet, at least as far as I know.
他尚未有出国的计划，至少据我所知是这样的。
That party wasn't exciting at all, but at least it filled the time.
那个聚会一点儿都不令人兴奋，但不管怎样，它使人打发了那段时光。
新概念英语第一册Lesson129~130语法及单词解析
语法 Grammar in use
表示猜测和推断的情态助动词must和can't
must与can't不仅能表达对现在和将来的猜测和推断，而且能表达对过去的猜测和推断——这时可用 must have been表示肯定的推断，用can't have been(而不是mustn't have been)来表示否定的推断，如后面跟进行时则表示对过去正在进行的动作的猜测。请看例句：
You must have been driving at seventy miles an hour.
你当时肯定正以每小时70英里的速度行驶。
I didn't see it. I must have been dreaming.
我没看见。我当时一定是在胡思乱想吧。
She can't have been 29.She must have been 36.
她那时肯定不会是29岁，她一定36岁了。
He can't have been reading. He must have been sleeping.
他那时肯定不是在看书，他准是在睡觉。
词汇学习 Word study
1.charge v.
(1)罚款;使承受经济负担：
He was charged by the policeman for speeding.
他因开车超速而被警察罚款。
(2)要(价);收(费)：
The hotel charged them ￡ 900 for one night.
饭店向他们索要900英镑作为住一晚的费用。
(3)指控;指责：
They charged him with murder.
他们指控他犯了谋杀罪。
2.dream v.
(1)做梦;梦见：
He dreamt about his grandmother last night.
他昨天夜里梦见他的祖母了。
Do you often dream at night?
你晚上经常做梦吗?
(2)梦想;幻想：
She dreamed that one day she would be as free as a bird
她幻想着有一天自己能像鸟儿那般自由。
I once dreamed of becoming a famous doctor.
我曾一度梦想着成为一位的医生。
(3)出神;心不在焉;空想：
Don't dream away your life!
不要在想入非非中虚度你的人生。
Sorry, I didn't see the sign. I must have been dream ing.
对不起，我没看见那牌子。我一定是思想开小差了。
3.wave v.
(1)招手;挥手示意：
He waved us quiet.
他挥手要我们别出声。
She waved me goodbye.
她向我挥手告别。
(2)起伏;飘动：
The flag is waving in the wind.
旗帜正在风中飘扬。
She was attracted by the waving sea.
她被那汹涌起伏的大海吸引。
新概念英语第一册Lesson131~132语法及单词解析
语法 Grammar in use
情态助动词may表示可能性
may或might都表示“可能”、“也许”。通常既可以用may，也可以用might，不过might所表示的可能性要比may小，且当情况是虚拟的时只能用might而不能用may。
(1)may 表示现在或将来的可能性：may+动词原形：
The bread may be fresh.
面包可能是新鲜的。
He may be reading.
他可能正在看书。
I may go abroad.
我可能出国。
They may offer me a job.
他们也许会给我提供一份工作。
(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.
他迟到了。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，她可能一直在看书。
It may have been right.
也可能是对的。
Thry may have been in the garden.
他们可能那时一直在花园里。
请比较:
He is working。
他在工作。(对事实确信不疑)
He may be working.
池可能在工作。(对现在可能发生的事情的猜测)
He must be working.
他肯定在工作。(对现在所发生事情有根据的推论)
He may have been working.
他那时可能正在工作。(对过去所发生事情的猜测)
词汇学习 Word study
1.worry v.
(1)担忧;发愁：
Mum always worries too much and it makes her tired.
妈妈总是过度忧虑，而这使她疲惫。
She's worried that she might lose her job soon.
她担心也许很快她就会丢掉她现在的工作。
(2)困扰;使不安宁：
Doesn't it worry you that his health is becoming worse?
他的身体越来越差，你不担心吗?
She is alway worrying him for presents.
她总是缠着他要礼物。
2.look after
(1)照料，照顾，照管：
Who's going to look after the garden when we are away?
我们离开时谁来照料花园呢?
Sally will help us to look after the children tomorrow.
萨莉明天会帮我们照看孩子们的。
(2)注意;关心：
Don't worry about me----I can look after myself.
别担心——我会照顾好自己的。
The doctor advised him to look after his health.
医生建议他要注意自己的健康。
新概念英语第一册Lesson127~132语法及单词解析.doc
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