摘要: why指原因.在定语从句中做原因状语 eg. Please tell me the reason why you are late. 注意:关系副词引导的从句可以由“介词+关系代词 引导的从句替换 (1) The reason why/ for which he refused the invitation is not clear, (2) From the year when/in which he was going to school he began to know what he wanted when he grew up. (3) Great changes have taken place in the city in which./where I was born. 判断关系代词与关系副词: 方法一: 用关系代词.还是关系副词完全取决于从句中的谓语动词.不及物动词后面无宾语.就必须要求用关系副词或者是介词加关系代词,而及物动词后接宾语.则要求用关系代词.例如: This is the mountain village where I stayed last year. I'll never forget the days when I worked together with you. (错) This is the mountain village where I visited last year. (错) I will never forget the days when I spent in the countryside. (对) This is the mountain village I visited last year. (对) I'll never forget the days I spent in the countryside. 习惯上总把表地点或时间的名词与关系副词 where, when联系在一起.此两题错在关系词的误用上. 方法二: 准确判断先行词在定语从句中的成分.也能正确选择出关系代词/关系副词. 例1. Is this museum you visited a few days ago? A. where B. that C. on which 例2. Is this the museum the exhibition was held? A. where B. that C. on which 关系词的选择依据在从句中所做的成分.先行词在从句中做主.定.宾语时.选择关系代词 (who, whom, that, which, whose), 先行词在从句中做状语时.应选择关系副词 ( where 地点状语.when 时间状语.why 原因状语) . Exercises: The man is standing there is my father. A. who B. whom C. which

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阅读理解。
     "Dream may be more important than sleep. We all need to dream," some scientists say.
      Dream takes up (占据) about one quarter (四分之一) of our sleeping time. People have a few dreams
each night. Dreams are like short films (电影). They are usually in color. Some dreams are like old films.
They come to us over and over again. That may be because the dreamer is worrying about something.
Dreaming may be a way of trying to find an answer.
     Some people get new ideas about their work from dreams. They may think about their work all day.
These thoughts can carry over into dreams.
     Sometimes we wake up with a good feeling from a dream. But often we can't remember the dream.
     Too much dreaming can be harmful (有害的). The more we sleep, the longer we dream. The mind is
hard at work when we dream. That is why (......的原因) we may have a long sleep and still wake up tired.
1. It may be less important to sleep than to _____.
[     ]
A. think
B. dream
C. work
D. study
2. Dreams and films are usually _____.
[     ]
A. very long
B. very sad
C. about work
D. in color
3. Why do some people often dream about their work?
[     ]
A. Because they are tired in the daytime.
B. Because they are not interested in their work.
C. Because they may be thinking about their work all day.
D. Because they have too much work to do. 
4. The main idea of the story is _____.
[     ]
A. what the dream is
B. people like to sleep
C. dreams are like films
D. we always remember dreams
5. Which of the following is true?
[     ]
A. Sleeping without dreams takes up about a quarter of our sleeping time.
B. When we dream, the mind doesn't work.
C. Too much dreaming is good for health.
D. We may be still tired after a long sleep
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(阅读理解)

“Dream may be more important than sleep. We all need to dream,” some scientists say.

   Dream takes up(占据) about one quarter(四分之一) of our sleeping time. People have a few dreams each night. Dreams are like short films(电影). They are usually in color. Some dreams are like old films. They come to us over and over again. That may be because the dreamer is worrying about something. Dreaming may be a way of trying to find an answer.

   Some people get new ideas about their work from dreams. They may think about their work all day. These thoughts can carry over into dreams.

   Sometimes we wake up with a good feeling from a dream. But often we can't remember the dream.

   Too much dreaming can be harmful(有害的). The more we sleep, the longer we dream. The mind is hard at work when we dream. That is why(……的原因) we may have a long sleep and still wake up tired.

(1)

It may be less important to sleep than to _________ .

A. think B. dream C. work D. study

[  ]

(2)

Dreams and films are usually _______ .

A. very long B. very sad C. about work D. in color

[  ]

(3)

Why do some people often dream about their work?

A. Because they are tired in the daytime.

B. Because they are not interested in their work.

C. Because they may be thinking about their work all day.

D. Because they have too much work to do.

[  ]

(4)

The main idea of the story is ______ .

A. what the dream is  

B. people like to sleep

C. dreams are like films   

D. we always remember dreams

[  ]

(5)

Which of the following is true?

A. Sleeping without dreams takes up about a quarter of our sleeping time.

B. When we dream, the mind doesn’t work.

C. Too much dreaming is good for health.

D. We may be still tired after a long sleep

[  ]
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