作业帮英语的动词和情态动词的两道题
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/07/07 16:47:27
英语的动词和情态动词的两道题
---oh,mis.wang, your dress looks nice ,is it new ?
---no,i _____ it since two years ago
a. bought b. have bought
答案是b,这里是用现在完成时.我想问的是：为什么不能够选a,看成是一般过去式.理解成,在两年前我就买了.two years ago是时间点
the old man was quite weak after the accident . so he ___-
a. must be take care of b. must be looked after
答案是b,为什么不能选a,同样是理解成“应该被照顾”的意思.
i told you not to be late again ,john , ____ i ?
a did b. didn't
答案是b,为什么不是a,在前句中,不是有一个否定的not了吗?
那么后句不是应该用肯定的吗?
---oh,mis.wang, your dress looks nice ,is it new ?
---no,i _____ it since two years ago
a. bought b. have bought
答案是b,这里是用现在完成时.我想问的是：为什么不能够选a,看成是一般过去式.理解成,在两年前我就买了.two years ago是时间点
the old man was quite weak after the accident . so he ___-
a. must be take care of b. must be looked after
答案是b,为什么不能选a,同样是理解成“应该被照顾”的意思.
i told you not to be late again ,john , ____ i ?
a did b. didn't
答案是b,为什么不是a,在前句中,不是有一个否定的not了吗?
那么后句不是应该用肯定的吗?
这些题都有一定的迷惑性
1.,I bought it （since） two years ago ,要是a 的话就不要since啦
2.被动语态明显take 的形式不对嘛,taken
3.I told you not to be late again ,主语是I（我）,反义疑问句的肯否定判断与后面的无关啦,可以理解为I told you sth,john ,didn't
1.,I bought it （since） two years ago ,要是a 的话就不要since啦
2.被动语态明显take 的形式不对嘛,taken
3.I told you not to be late again ,主语是I（我）,反义疑问句的肯否定判断与后面的无关啦,可以理解为I told you sth,john ,didn't