2023年中考英语现在完成时重点知识及习题
现在完成时表示1)过去发生或已经完成的动作或存在的状态对现在造成的影响或结果.(即它的"完成用法")e.g. I have just cleaned the classroom.
2)过去已经开始,一直持续到现在的动作或状态。注意:此时动作可能还要继续。(即它的"未完成用法")。E.g. He has lived in Beijing for ten years.
其结构是“have/has+过去分词”。过去分词的变化分规则与不规则两种。规则变化与过去式相同,不规则变化需要另记。
它的否定句是在have/has后边加not,变一般疑问句是把have/has提前。E.g. I have ridden a horse. I have not ridden a horse. Have you ridden a horse?
它的时间状语通常为already, just, yet, ever, never, before等。另外还可和since+表过去的时间点,for+时间段连用。
做题时常见错误如下:
一、易丢掉have/has
例:He taken (take) the medicine before.
答案:has taken
解析:have/has 为助动词,起构成时态的作用,是不能省略的。我们可以这样记:“现在完成时态中,have/has 不可缺。”
二、have与has易用混
例:I has never heard (hear) of that before.
答案:have heard
三、延续性动词与短暂性动词易弄错
例:She has left (离开) for 2 hours.
答案:has been away
解析:在肯定句中,与since或for引出的时间状语连用的是延续性动词,不能是短暂性动词,但在否定句中短暂性动词也是可以的。E.g. I haven't bought clothes for one year. 在此题中leave是短暂性动词,不能与for+时间段连用,须把它改成相应的延续性动词。如stop be over等。此题中leave要改成be away。这两种词的转换是学习现在完成时需要注意的。
专项练习
"
1、单选
1 You have _____ a tall young man.
A grown B grown into C grown us D grown up
2 He has ____ the watch for a year.
A buy B bought C have D had
3 Has your brother _____ the dog?
A kept in B fed C fed on D kept on
4I _____this book for two weeks, I have to return it now.
A borrowed B have borrowed C kept D have kept
5 Have you ever _____to the Great Wall? It's very beautiful.
A gone B been C went D go
6 Her brother _____the Party since 1978.
A joined B has joined C has been in D was in
7 The Greens _____many places of interest since they came to China.
A will visit B visited C have visited D visit
8 I'm sorry, I ____ your name.
A had forgotten B forgot C have forgotten D forgotten
9 The bookshop _____ for eight years.
A has been open B has been opened Chas opened D has open
10 We have all the paper so we need to buy some.
A used up B made of C filled with D hunted for
11 The flower I ____grown up.
A planted has B planted have C has planted D have planted
答案:1B 2 D 3 B 4D 5 B 6 C 7 C 8 C 9 A 10 A 11 A
2、填空
1 Have you ever ______(take) a train?
2 It _________(be ) more than three years since Jim ______(leave) here.
3 Have you _____(make)friends with your new classmates yet?
4 I _______(have) my lunch and I'm not hungry now.
5 Jim has never seen a panda, _____he?
6 We ______(be) good friends since we met at school.
7 We can't find him anywhere. Perhaps he______(go) home.
8 He _____(read) the book before.
9 Mr. Green _____(teach) us a lot about social studies since September.
10 I _____never____ (meet) her sister before.
答案:1 taken 2 has been, left 3made 4 have had 5 has 6 have been 7 has gone 8 has read 9 has taught 10 have met
四、have been to与 have gone to 易弄混
例:我去过北京。
I have gone to Beijing.
答案:I have been to Beijing.
解析:"have been to+地点" 是表示曾去过某地,但此刻不在那儿(即在说话的地方)。而"have gone to+地点" 是表示去某地了,此刻在路上或已经到了那个地方(即不在说话的地方)。注意:这两个句式后接副词时,需省to。E.g. He has gone there.
五、 忘记把already变成yet
例:I have already finished my homework.(变一般疑问句)
Have you already finished your homework?
答案:Have you finished your homework yet?
解析:现在完成时态中,肯定句中有already,变否定句或疑问句时通常要改为yet.
六、在条件、时间状语从句中用一般现在时表示将来
例:I'll go with you when I finish(finish) my homework.
答案:have finished
解析:在条件、时间状语从句中表示将来完成的动作,用现在完成时。但注意,此时表示这动作将在另一动作之前完成,若两动作同时发生,或几乎同时发生,则一般不用现在完成时。
另外,现在完成时易与一般过去时弄混,前边已经讲过,这里不在重复。
编辑推荐: