求几道英语填空的解析1.同一句转换：It took us 20 minutes to clean the classroom.We___20 minutes___the classroom.2.学生因为作业太多而不高兴Students ___ ___about___ ___homwork.3.完成作业不会花很长时间It___ ___ long to ___ the homework.4.He said"The milkman brings milk to us at 6:00He said___ ___ the milkman ___ milk to them at 6:00答案我知道的1.spent cleanning 2.are unhappy too much 3.won't take finish 4.that broght

解析: 1. It takes sb. time to do sth.
= sb. spend time (in ) doing sth.
某人做某事用了... 时间.
原句中的took为过去时, 故同义句中的spend 也要用过去时spent .
所以填：spent, cleaning

2. be unhappy = be not happy 不高兴
主语为复数, 故be用are .
too much+不可数名词, homwork是不可数名词, 因此用too much.
too many+可数名词, 如: too many boys
故填：are unhappy, too much .

3. 还是考查: It takes sb. time to do sth.
因说话时, 作业还没有完成.因此用一般将来时.又是否定句.
因此就用:It won't take long to finish the homework.

4.考查直接引语变间接引语: (多了一空,应去掉）
当直接引语为陈述句时, 变成间接引语时就用that 引导宾语从句.
主句的谓动为过去式时, 宾从的谓动应变成过去时,所以brings变成brought .
又:宾从中的人称代词也要做相应的变化. us 要变成them .
所以填：that , brought