①20个疑问代词 问什么用what 问原因用why 问哪里用where 问哪个用which 问谁用who 问谁的用whose 问时候用when 问怎样用how 问颜色用what color 问多重用how heavy 问星期用what day 问年龄用how old 问多少用how many 问多高用how tall 问价格用how much 问多大用how big 问多长用how long 问多高用how tall 问多久用how often 问几点用 what time ②16大英语时态 一般现在时do 一般过去时did 一般将来时will do 现在进行时be doing 过去进行时was/were doing 将来进行时will be doing 现在完成时will have done 过去完成时had done 将来完成时will have done 过去将来时would do 过去将来进行时would be doing 过去将来完成时would have done 现在完成进行时have/has been doing 将来完成进行时will have been doing 过去完成进行时had been doing 过去将来完成进行时would have been doing ……