四、课堂运用
【基础】 1. Both his parents look sad . Maybe they _________what's happened to him . A. knew B. have known C. must know D.will know
2. He has _______ been to Shanghai , has he ?
A. already B.never C.ever D. Still
3. Have you met Mr Li ______?
A. just B. ago C.before D. a moment ago
答案及解析:
1、现在完成时主要强调过去发生的动作对现在造成的影响,或过去发生的动作还未结束,一直持续到现在或将来,重点在于对现在的影响。这种考查难度较大,往往无时间状语,需要从上下文分析、推理才行。故上两侧根据上下文分析、推理,正确答案是B。
2、现在完成时常与already(已经),just(刚刚,正好),ever(曾经),never(从来,也不;从不),before(以前),yet(仍然)等连用。故2应选B。
3、C
【巩固】
1. The famous writer _____ one new book in the past two year
A. is writing B.was writing C.wrote D.has written
2. -Our country ______ a lot so far . -Yes . I hope it will be even ______ . A. has changed ; well B. changed ; good
C. has changed ; better D. changed ; better
3. Zhao Lan ______already ______in this school for two years .
A. was ; studying B. will ; study C. has ; studied D. are ; studying
答案及解析:
1、现在完成时常与recently(近来),so far(到目前为止),in the past/"last + 一段时间"等时间状语连用。因为上述短语表示的是从现在起往前推算的一段时间,句中的动作是从过去某一时间或时刻开始持续到现在的。故2应选D。
2、C
3、现在完成时时常与"for +时间段或since +过去时间点"连用(含从句,从句过去时)。故3应选C。
【拔高】 1. We ______ Xiao Li since she was a little girl .
A. know B. had known C. have known D. knew
2. Harry Potter is a very nice film .I_______ it twice .
A. will see B. have seen C. saw D.see
3. -These farmers have been to the United States .
-Really ? When _____ there ?
A. will they go B. did they go
C. do they go D. have they gone
答案及解析:
1、C
2、现在完成时还与once(一次),twice(两次),three times(三次),several times(几次)等表示重复次数的词语连用。故2应选B。
3、现在完成时与一般过去时容易混淆,就是因为它们所表示的动作都发生在过去,但二者又有区别:一般过去时表示过去某个时间发生的事、存在的状态或经常发生的动作,说话的侧重点在于陈述一件过去的事情,与现在没有关系;现在完成时表示与现在有关系的发生在过去的动作,它不与表示过去的时间状语(如yesterday , last week ,
a moment ago等)连用。故3的正确答案为B。)
课程小结
1. 现在完成时的定义
2. 现在完成时里表示一段时间的延续性动词以及连续性动词的用法
3. 现在完成时和一般过去时对比和总结
课后作业
【基础】
1. -______ you ___ your homework yet ?
-Yes . I _____ it a moment ago .
A. Did ; do ; finished B. Have ; done ; finished
C. Have ; done ; have finished D. will ; do ; finish
2. His father ______ the Party since 1978 .
A. joined B. has joined C. was in D. has been in
3. -Do you know him well ?
Sure .We _________ friends since ten years ago .
A. were B. have been C. have become D. have made
答案及解析:
1、B
2、现在完成时中,非延续性动词不能与for和since引导的表示一段时间的状语连用,通常是用相应的延续性动词来代替。故11的正确答案依次为:D。
3.B
【巩固】
1. -How long have you ____ here ?
-About two months .
A. been B. gone C. come D. arrived
2. Hurry up! The play __________ for ten minutes .
A. has begun B. had begun C. has been onD. Began
3. It _____ ten years since he left the army .
A. is B. has C. will D. Was
答案及解析:
1、A 2、C 3、A。
【拔高】
1. Miss Green isn't in the office . she_______ to the library .
A.has gone B. went C.will go D. has been
2. My parents ______ Shandong for ten years .
A. have been in B. have been to
C. have gone to D. have been
3. The students have cleaned the classroom, __________?
A. so they B. don't they C. have they D. haven't they
答案及解析:
1、"have/has gone to + 地点"表示"某人去了某地(还未回来)",指主语所指的人不在这儿。"have/has been in + 地点"表示"在某地呆了多长时间",常与表示时间的状语连用。"have/has been to +地点"表示"曾经去过某地(但现在已不在那儿)。"故16的正确答案为A。
2、A
3、D
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