题目内容
4.So far,we 3000English words.( )| A. | learned | B. | have learned | C. | studied | D. | learn |
分析 到目前为止,我们已经学习了三千个英语单词.
解答 答案:B.
根据So far 可知,"到目前为止"这是一个表示一段时间的时间状语,此题用现在完成时,表示过去发生动作一直持续到现在.现在完成时态的结构为have/has+动词的过去分词,主语是we,所以助动词用have,故选B.
点评 本题主要考查现在完成时,用法:表示过去发生或完成的动作对现在造成的影响或结果,还表示过去发生动作一直持续到现在.其结构是have/has+及物动词的过去分词.此题注意短暂性动词和延续性动词区别.
练习册系列答案
相关题目
15.Antony and Tom are good friends.They ______ each other for ten years.( )
| A. | knew | B. | know | C. | have known | D. | had known |
19.-So far,our country _____ a lot.
-Yes,I agree with you.( )
-Yes,I agree with you.( )
| A. | change | B. | changed | C. | changes | D. | has changed |
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 |
16.当你在英国处于危险的境地时,可以这样来呼叫:_____________.( )
| A. | Hello,hello! | B. | Be careful! | C. | Help,help! |