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用关系副词when, where或why完成下列句子。
I walked in our garden, ________ Tom and Jim were tying a big sign onto one of the trees.
查看习题详情和答案>>1)过去分词作状语，其逻辑主语要与主句主语保持一致，两者之间为“被动关系”，从句可转换成“连词＋过去分词”形式。连词有while, when, as, though, although, unless, if, once等。
2)过去分词本身就表示被动，作状语时无需使用being done结构；若分词表示的动作明显发生在句子谓语动词之前，可以使用________结构。
3)其否定式在________前加not。
用关系副词when, where或why完成下列句子。
The accident had reached to a point _______ both their parents are to be called in.
查看习题详情和答案>>用关系代词that，which，who，whose，whom和关系副词when/where填空
1．The man ________ told me this refused to tell me his name.
2．This is the photo ________ I took.
3．She is the girl ________ bicycle was stolen.
4．Everyone ________ knows him likes him.
5．The man, ________ I bought the computer from doesn't own a shop.
6．I live in that house ________ door and windows face to the south.
7．1991 was the year ________ she was born.
8．That's the hotel ________ we were staying last summer.
9．This is the pan ________ Mother boils the milk.
10．I'll never forget the day ________ I first saw you.
查看习题详情和答案>>仔细阅读下面的短文，文中共有10个空格。请根据每小题括号内的具体要求完成语法填空，例如正确词性，词形变化等。
There are two main reasons 1 (关系代词或关系副词) the temperature of the air is always 2 (change的正确形式)．One reason is that the air around you moves in from somewhere else．Air usually moves in large bodies 3 (call 的正确形式) air masses．Some air masses move in from the north．These air masses usually have cold air that cause the temperature 4 (drop的正确形式)．Air masses also move in from the south．They usually have 5 (warm的正确形式) air that causes the temperature to rise．
Temperature changes during the day or night can be great 6 (连词)small．This depends partly 7 (介词) how many clouds are in the sky． 8 (连词)there are many clouds during the night, they act like tile covers on your bed．They blanket the earth and keep the air from losing much of 9 (代词)heat．The temperature usually does not drop much during such a night．When there are many clouds during 10 (冠词)day, some of the sun’s energy will not reach the earth．The temperature usually does not rise much on such a day．