题目内容
9.The girl with her parents ______ the Greener China since two years ago.( )| A. | have joined | B. | has joined | C. | has been in | D. | have been in |
分析 这个女孩和她的父母自从两年前以来就加入了绿色中国组织.
解答 答案:C.
根据since two years ago可知,"自两年前"表示一段时间,表示过去的动作一直持续到现在,应该用现在完成时态;现在完成时态的结构为have/has+动词的过去分词,而join是瞬间性动词,不能持续一段时间,所以要用延续性动词be,表状态,在这里The girl with her parents 主语是The girl,这里是单数形式,所以助动词应该用has.故选C.
点评 判断动词的时态,要通过所给的时间状语、提示词或语境去判断动词存在的状态.注意容易混的动词的用法.
练习册系列答案
相关题目
20.-How about going to the movie tonight?
-Sorry,I ______ it already.Thank you all the same.( )
-Sorry,I ______ it already.Thank you all the same.( )
| A. | see | B. | saw | C. | have seen | D. | will see |
4.So far,we 3000English words.( )
| A. | learned | B. | have learned | C. | studied | D. | learn |
14.---I think running is an easy way to keep healthy.
---_______,but Bill doesn't think so.( )
---_______,but Bill doesn't think so.( )
| A. | No problem | B. | I hope not | C. | I agree | D. | I'm afraid not |
1.-Would you like to go swimming with me?
-_______,but I have to look after my sick Mom at home.( )
-_______,but I have to look after my sick Mom at home.( )
| A. | Yes,let's go | B. | No,I won't | C. | I'd love to |
19.It might be a boy's room_____ the clothes look like boys'clothes.( )
| A. | when | B. | because | C. | but |