(共19张PPT)
谓语动词
时态 (完成式)
时态 构成(以do为例) 时态 构成(以do为例) 注意变化
一般现在时 do/does 一般过去时 did do/does-did
一般将来时 will do 过去将来时 would do will-would
现在进行时 is/am/are doing 过去进行时 was/were doing is/am/are-was/were
现在完成时 have/has done 过去完成时 had done have/has-had
一、现在完成时
一、 现在完成时 (The Present Perfect Tense )
表示过去发生或者已经完成的动作对现在造成的影响或结果,或者从过去已经开始,持续到现在的动作或状态。
1. 结构: have/has done
I have been a teacher for four years.
They have arrived.
写出下列动词的过去分词形式
become find
begin give
build make
choose read
drink see
drive send
feel take
become
begun
built
chosen
drunk
driven
felt
found
given
made
read
seen
sent
taken
Eg:He has arrived. (He is here now.)
2)表示过去的动作对现在完成的影响或结果;不能和表示过去的时状连用。
3)表示一个动作从过去开始,一直延续到现在,可能还要延续下去。
Eg:His first novel has received good reviews since it cameout last week.
2. 用法:
1) 常与表示现在完成时的时间状语连用: already,just,yet,since+时间点,for+时间段,up to now, until now, ever since, so far ,recently, lately, in(over/during) the past /last few years等。
Eg:I have learned about two hundred English words in the past three years.
常用现在完成时的特殊句式
It has been+段时间+since从句
That/This/It is the first time that+现在完成时
That/This/It is the best/finest/most interesting…+名词+that+现在完成时
Eg:This is the first time that I have made a speech.
It is the most interesting novel that I have ever read.
二、过去完成时
二、过去完成时 ( The Past Perfect Tense )
表示某一时间或者动作以前已经发生或者完成了的动作,它表示的是“过去的过去”
1. 结构: had done
Eg:He said that his father had gone to Beijing.
2)表示某一个动作在过去的某个时间或者动作以前已经完成。
3)表示从过去某一时间延续到过去的另一时间的动作或状态。
Eg:John was fired(解雇)last week.He had worked in the factory for almost two years.
2. 用法:
1) 常与表示过去完成时的时间状语连用: before,by the end of last year(month, term…)等
Eg:By the end of last term, we had learned 5000 new words.
4)hope, plan, mean, intend,think,expect等表示“打算,计划,认为”等的动词用于过去完成时,表“本打算/本计划/本认为/本期望做而未做的事”
Eg:They had planned to see us off at the airport.
常用过去完成时的特殊句式
That/This/It was the first time that+过去完成时
No sooner/Hardly had sb. done sth. than /when sb./sth. did sth. 一.......就.......
E.g. No sooner had they rushed out of the house than it burnt down.
他们刚从房子里跑出来房子就烧塌了。
(1) Progress __________ (be) so far very good and we are sure that the work will be finished on time.( 全国II)
(2)I ____________ (be)very sad for the past few months.
(3) It is the first time that the Chinese _____________(plant) vegetables in space.
(4)By the time Jack returned home from England, his son ______________ (graduate) from college.
(5)He _________ (learn) English for five years before he moved to Australia.
(6)I _________ (expect) to see you yesterday,but I was too busy.
Consolidation
have planted
have been
has been
had graduated
had learned
had expected
三、现在完成进行时
三.现在完成进行时 ( The Present Perfect Continuous Tense )
表示发生在过去一直持续到现在的动作,这个动作可能刚停止,也可能仍在继续。
所表示的动作并不是一直不停地进行,而表示动作一直在断断续续地重复。
E.g.: In order to find the missing child,villagers have been doing all they can over the past five hours.
The manager has been telling the workers how to improve the program since 9 am.
结构:have/has been doing
2.用法:
常与 all days,all night,these few days, all the week,all the morning 等时间状语连用。
lie,rest, wait, stay, sleep 等谓语动词更倾向于用现在完成进行时。
点对点练习
1.-Where is Peter I can't find him anywhere.
-He went to the library after breakfast and__________
(write) his essay there ever since.
2.Since then-for all these years we__________________tomatoes to self-seed where they please.
have been
writing
have been allowing
Time to practice~
这样
考
Over the past twenty years, American country music1.______(become) more and more popular. Instead of writing about money, success or expensive things to buy,song writers now 2._____(write) once more about the things that 3.______(be) common for everyone nowadays.
In the 1950s, American music 4.___(be) about other things,for example,love.Money 5.______(consider) to be important, too.Then in the 1960s, song (turn) to other subjects. During these writers 6years many young students were angry with society, so songs were often full of anger.
Today country music has returned.Once, the home of 7.American country music7.____( be ) Nashville,Tennessee. Now, however, the music has reached all parts Singers do not just come from the States but of the States.from all over the world.There 8._____(be) many famous singers from Britain, Canada and Australia.
The first country singers 9._____(sing) while playing the guitar. Now,however, a lot of equipment 10.______ (need) for large theaters.
答案:
has become
are writing
are
was
was considered
turned
was
are
sang
is needed