句型转换【小题1】 Lucy usually cleans the cage every two days. (对划线部分提问) How often 【小题1】so that 【小

句型转换
【小题1】 Lucy usually cleans the cage every two days. (对划线部分提问)
How often 【小题1】so that 【小题1】 is it 【小题1】 been 【小题1】that walked 　 does Lucy usually clean the cage?
【小题2】 Jenny worked hard in order to catch up with others.( 将简单句改为复合句)
Jenny worked hard 　 　 she could catch up with others.
【小题3】 Nothing is impossible if you put your heart in it. (改为反意疑问句)
Nothing is impossible if you put your heart in it, 　 　 ?
【小题4】 Mary came to China three years ago. (改为同义句)
Mary has 　 in China since three years ago.
【小题5】Zhai zhigang became the 1st Chinese astronaut to walk in space. (改为定语从句)
Zhai zhigang became the 1st Chinese astronaut 　 　 in space.

解析：【小题1】划线部分意为“每两天”，指的是频率，对频率提问用How often。故填How often。【小题1】in order to do sth.“为了做某事”，表示目的，so that...“以便于......”也表示目的。故填so that。 【小题1】考查反意疑问句。nothing“什么也没有”，表示否定。故反意疑问句用肯定。不定代词作主语，谓语用单数。故填is it。【小题1】ago用于一般过去时；而since加含过去时的句子常与现在完成时连用。“玛丽已经在中国三年了。”故填been。【小题1】考查定语从句。指人时用who或that；当先行词有序数词或最高级修饰时，引导词只能用that。句中含有1st，即first，故用that， 主句用的是过去式，故用walked。故填that；walked。

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