致学生
致老师
Thanks
现在进行时与一般现在时
(I am doing and I do)
一般过去时与过去进行时
(I did and I was doing)
现在时与过去时
(I do / I am doing and I did / I was doing)
现在完成时与现在完成进行时
(I have done and I have been doing)
现在完成时、现在完成进行时与一般过去时
(I have done and I have been doing; I did)
现在完成时与现在时
(I have done / I have been doing and I do / I am doing)
现在完成时、现在时与过去时
(I have done / I have been doing， I do / I am doing and I did)
现在完成时与一般过去时
(I have done / I have been doing and I did)
一般过去时、过去进行时与过去完成时
(I did， I was doing and I had done / I had been doing)
一般过去时、过去进行时与used to
(I did， I was doing and I used to do)
现在时、现在完成时与过去时
表示将来：现在时与will/shall
(I do / I am doing and I will/shall do)
表示将来：现在进行时、will/shall与going to
(I am doing， I will/shall do and I am going to do)
表示将来：复习
情态动词：can、could与be able to
情态动词：may与might
情态动词：can、could、may、might、must与can't
情态动词：must(n’t)、need(n't)、shoutd(n’t)与don’t have to
情态动词：(don't)have to、shoutd(n。t)、had better(not)与
ought(not)to
情态动词：shoutd
情态动词：复习
虚拟语气：if I do与if I did
虚拟语气：if I did与if l had done
条件旬：复习
1wish
被动语态
have someth ing done
疑问句
间接引语与疑问句
动词-ing形式与不定式
介词和短语+动词-ing形式
I'm usedtodoing与I usedtodo
动词不定式与介词+动词-ing形式
(afraid to do and afraid of doing)
动词形式：复习
可数名词与不可数名词
a／an、some与the
the
限量词与代词
定语从旬
形容词与副词
比较级与最高级
词序
时间介词
地点介词
介词(概述)
形容词／动词+介词
短语动词
练习143解答
答案
