... powered by gas engines, and more recently electric motors 这是and连接的并列过去分词短语共同修饰名词Motorized scooters吗?句子是省略了powered by,完整是historically powered by gas engines, and more recently (powered by) electric motors,对吗?为什么要省略呢...
例句里的here和there,牛津字典我查过都是副词。所以不要再说名词之类的了。come out here,out副词 here副词,out修饰不及物come,here副词修饰come out。那么come out of there,这是不及物动词+副词+介词+副词结构,第一个副词out修饰不及...
我是一个初一的学生写了一篇日记:我的一天。有语法错误吗?请老师评判一下。I get up at six in the morning. Then I have wash my face and brush my teeth. After that I had a quick beakfest. Next I go to school. I have four lessons in the morning. After classes is o...
1.如果是有Be动词情况下
Is he not a rich man?
Isn't he a rich man?
2.如果没有Be动词的情况下
Did he not come yesterday?
Didn't he not come yesterday?
两组句子在表达意思上有没有差别,Not应不应该提前?