初中英語全部時態

一般現在時

A:一般現在時通常表示目前階段經常發生的動作或存在的狀態。

結構: 1)be動詞的第一人稱單數為,第三人稱單數為,其他人稱為。

有一順口溜體現了它的用法: 我用am ,你用 are ,is 用於他,她,它, 單數is,複數are.

肯定式:主語+ am /is/are +其他

否定式:主語+ am/is/are +not + 其他

疑問式:Am /Is /Are + 主語+ 其他?

簡略回答: (肯) Yes,主語 + am/ is /are

(否) No,主語 + am /is/are not

縮寫形式: I'm == I am That's ==That is We're ==We are What's== What is

You're == You are Who's == Who is They're ==They are Where's ==Where is

He's ==He is She's ==She is It's == It is

isn't==is not aren't==are not

2)行為動詞(實義動詞)除主語是第三人稱單數外,都用動詞原形,主語是第三人稱單數時,在動詞 詞尾加-s或-es 。

“動詞第三人稱單數”的加法 即 “如何從動詞原形變為第三人稱單數”

1、一般情況加s.

2、以o, s, x, ch, sh 結尾加es.

3、以“輔音字母+y”結尾 改y為i +es

肯定式:主語+動詞原形/動詞的第三人稱單數

否定式:主語+助動詞 don't/doesn't +動詞原形+其他

疑問式:Do/Does+主語+動詞原形+其他

簡略回答:(肯)Yes,主語+do/does (否)No,主語+do/does not

縮寫形式: don't == do not doesn't ==does not

注意:have的第三人稱單數為has

用法:

1.表示事實,現狀,性質或經常的,習慣的動作,常與often, usually, always, sometimes, today,every day,once a week, every five minutes, on Sundays等時間狀語連用,

eg. He has a brother

2.表示普遍真理. eg. The earth goes round the sun.

3.表示在現在時間裡所發生的一個動作 .

eg. Here comes the train.

4.在時間和條件狀語從句中代表一般將來時 .

eg.I'll go with you if you are free tomorrow.

一般過去時

一般過去時棗表示過去發生的動作或存在的狀態,一般過去時通常由動詞的過去式表示。

結構:

1.動詞的第一、三有稱單數用,其他人稱用,其肯定式,否定式,疑問式和簡略回答形式與一般現在時相似。

2.行為動詞的過去式分為規則和不規則兩種, 規則動詞的過去式是在動詞後加或,不規則動詞參照不規則動詞表,需要專門記憶。

肯定式:主語+動詞的過去式 + 其他 eg. I got up at six this morning.

否定式:主語 + did not + 動詞原形 + 其他 eg. John didn't live here last year.

疑問式:Did + 主語 + 動詞原形 + 其他 eg. Did you see him a moment ago?

簡略回答.(肯)Yes, 主語 +did (否)No , 主語 + didn't.

用法 :1.主要用於過去某個時間發生的動作或狀態.

eg. My father was at work yesterday.

2.表示過去經常或反覆發生的動作,常與often,always 等表示頻度的時間狀語連用.

eg. He always went to work by bus last summer.

3.和when等連詞引導的狀語從句連用.

eg. When she reached home, she had a short rest.

4.常與表示過去的時間狀語, 如… ago, yesterday, last week, in the old days, when I was five years old, in 1995 等連用.

eg.They began the work two months ago.

Were you born in 1981? Yes, I was.

不規則中尋"規則"

英語中很多動詞的過去式是不規則的,有些同學死記硬背,卻效果不佳。我們不妨共同尋找一些不規則動詞中的“規則”,這樣記憶起來就會事半功倍了。

I. 過去式與動詞原形同形。例如:

let—let, put—put, hit—hit, read—read[red]等。

II.動詞原形以ow/aw結尾,過去式常變為ew。例如:

know—knew, grow—grew, throw—threw, draw—drew等。但是也有一些例外,例如:show—showed。

III.許多動詞只要將動詞原形中的元音字母i改為a,就可變為過去式。例如:

begin—began, give—gave, sing—sang, swim—swam, sit—sat, drink—drank, ring—rang等。

但是win—won例外。

IV.有些動詞的過去式以o(a)ught結尾。例如:

bring—brought, buy—bought, think—thought, catch—caught, teach—taught等。

[注意]上述動詞過去式究竟是以ought[:t]還是aught[:t]結尾,只要記住“有a則a,無a則o”即可。 即:原形中有a的, 過去式變為aught,否則為ought。

V. 以eep結尾的動詞,常將eep改為ept構成過去式。例如:keep—kept, sleep—slept, sweep—swept等。

一般將來時

一般將來時表示將來發生的動作或存在的狀態

結構:助動詞shall/will { be (is ,am ,are ) going to }+ 動詞原形(當主語第一人稱時,一般用shall,當主語為第三人稱時,用will,但主語為第一人稱時,也用will)

肯定式:主語+shall/will+動詞原形+其他

否定式:主語+shall/will+not+動詞原形+其他.

疑問式:Shall/Will+主語+動詞原形+其他

簡略回答:(肯)Yes,主語+shall/will . (否)No,主語+shall/will+not …

縮寫形式: 'll ==shall/will shan't== shall not won't == will not

用法:

1.表示將要發生的動 作或情況,常用時間狀語有: later (on), soon, in a month, next time, from now on, tomorrow等.

eg. I shall be eighteen years old next year.

Maybe China's population _______ (pass) 1,300,000,000 by the year 2005.

2.表示某種必然的趨勢

eg. Fish will die without water.

解析:

1.在以第一人稱為主語的問句中,常用 shall 表示提議和詢問情況,在以第二人稱作主語的問句中,用will 表示請求.

eg. Where shall we have the meeting?

Will you please lend me your pen?

2.當主語是第一人稱時,用will 表示意願.決心.允諾.命令等.

eg. I will give you an English--Chinese dictionary for your birthday.

3.在時間或條件狀語從句中,一般用一般現在時代替一般將來時.

eg. Tom will write to me when he gets there.

4.be going to +動詞原形也可表示將來時.

(1).表示主觀意願.打算等.

eg. He's going to learn English next term.

(2).根據已有跡象,可能要發生的情況

eg. Look at the black clouds!

----It is going to rain.

現在進行時

現在進行時棗表示目前或目前階段正在進行的動作。( 表示“……正在(在)幹……”)

結構: is/am/are + 動詞的-ing形式 ( 動詞的現在分詞 )

用法:

1.表示目前發生(進行)的動作(不指狀態),常用時間狀語有:now, at the moment 等,並常出現在祈使句的句子中,與 look, listen連用.

eg. Are you writing a letter to your father at the moment?

Listen! She is singing in the next room.

2.表示目前階段正在進行,而此刻不一定在進行的動作.

eg. They are planting trees these days.

3.表示按計劃或安排即將進行的動作,表示這種動作的動詞有:come, go, leave, arrive, start, see等,並常與表示將來時間的狀語連用.

eg. They are leaving for Australia tomorrow afternoon.

注意: 某些表示感覺或狀態的動詞,如 love, like, prefer, hate, see, know等一般不用現在進行時.

eg. Lucy prefers art to science.

現在完成時

現在完成時的結構: 主語 + “have(has) + 過去分詞”

(1)現在完成時用來表示對目前狀況仍有影響的,剛剛完成的動作(常與yet,already,just連用),或者過去某一時刻發生的,持續到現在的情況(常與for,since連用)。例如:

1)I have just finished my homework.

2)Mary has been ill for three days.

注意:與for ,since 連用的動詞必須用延續性動詞,而不能用短暫性動詞如:come —be here go ——be there join—— be a member borrow ——keep leave ——be away 等等

(2)常與現在完成時連用的時間狀語有:since, for, during, over等引導出的短語;副詞already, yet, just, ever, now, before, often, lately, recently等;狀語詞組this week (morning, month, year), so far, up to now, many times, up to the present等。例如:

1)I haven’t been there for five years.

2)So far, she hasn’t enjoyed the summer vacation.

3)There have been a lot of changes since 1978.

◆◇一般過去時和現在完成時的比較與轉換

一般過去時:

與之搭配的時間副詞常用的有:Yesterday, last week, last year, at 5:30 , last weekend, last month. 有時用on weekend, this morning

現在完成時: 常用的時間副詞有:ever, never, yet, still, already , in the past ten years; in my life; today

Examples:

Linda still hasn’t finished her homework.

Stanley has already gotten bored with the life here in Toronto.

Have you ever gone to Paris?

I have gone to the post office twice today.

2、 過去完成時

(1)表示過去某時間前已經發生的動作或情況,這個過去的時間可以用by,before等介詞短語或一個時間狀語從句來表示;或者表示一個動作在另一個過去動作之前已經完成。{ 表示“過去的過去 ”} 例如:

1)We had just had our breakfast when Tom came in.

2)By the end of last year they had turned out 5, 000 bicycles.

(2)過去完成時常用於以下固定句型:

1)by (the end of ) +過去時間,主句中謂語動詞用過去完成時。例如:

The experiment had been finished by 4 o’clock yesterday afternoon.

八種時態的比較

一般現在時和現在進行時

a.一般現在時:重複發生的習慣性動作和真理。 標誌性的時間副詞: always often frequently usually sometimes every day every week every month occasionally once a month once a month once a year seldom rarely never

Examples:

She goes shopping every week.

He reads Business News every morning.

He seldom goes dancing.

The sun rises in the east and sets in the west.

Susan loves chocolate.

b.表示一種狀態或性質

Examples: This tastes very good. I don’t believe my eyes.

I need a car. I hate this music.

c.在講述一個過去發生的故事時,有時可用一般現在時表示過去發生的一系列事情。現在進行時:

a.正在進行的動作

常用的時間狀語:(right)now at the(this)moment at present ;,?|Lm

Examples:

Robert is teaching at this moment。

Mendel is working on the first draft of his essay。

I’m looking for my umbrella right now.

He’s enjoying a holiday right now.

b.表達在現在一段時間內重複發生的動作,但是動作在說話時不一定正在進行。

常用的時間副詞:these days Nowadays today this semester/quarter this week/month/year

Examples:

He’s relaxing this week.

He’s working as a librarian this semester.

c.對一類經常發生的事情所表達的強烈情感

常用的時間副詞:Always Forever constantly

Examples:

He’s always complaining.(他怎麼總是抱怨。)

You’re always dancing.(你怎麼總是跳舞,是不是太多了吧。)

◆◇一般現在時和現在完成時

一般現在時:

表達的動作不表明動作從何時開始或已進行了多長時間。

Examples:

Helen and Tom are happily married.

Bruce listens to the news every morning.

現在完成時:

a.現在完成時所表達的動作正在進行,但句子總是表明動作是什麼時候開始的。

Examples:

Helen and Tom have been happily married since their wedding day 60 years ago.

Bruce has listened to the news all his life without missing a day.

b.與現在完成時常用的兩個詞: For and Since

For:表示動作持續的一段時間。如:for two minutes/weeks/years;for several days/a long time/the past month 而在一般現在時不能與之連用。

Since: 表示動作從何時開始時間點. 如:since 6:00/Apr. 23/last week /the accident

◆◇現在進行時和現在完成時

現在進行時:

表示一個正在進行的動作,但不表明動作從什麼時候開始的。

Examples:

He is waiting over there.

Matthew is studying Chinese in Beijing.

現在完成時:可表明發生動作的具體數字和次數。

Examples:

He has tried to pass the exam twice.

◆◇一般過去時和過去進行時

a.二者的區別在於一般過去進行時表示在過去某個特定時間正在進行的動作。

Examples:

My brother was sleeping at 2:00 yesterday afternoon.

My neighbor’s dog was barking at 3:00 this morning.

b.二者的區別在於一般過去進行時表示在過去同一時間兩個同時進行的動作。

與之常用的時間副詞: while, as

Examples;

Robert was moving the lawn while Susan was fixing the car.

As Michael was visiting Paris, Robert was teaching English classes in Beijing.

◆◇一般過去時和過去將來時

二者的區別在於過去將來時表示在過去打算做,但是沒有做的動作.而一般過去時表示為什麼沒有做的原因。

Examples:

I was going to become a rock star but I didn’t know the right people in the music business.

◆◇一般過去時和過去完成時

二者的區別在於過去完成時表示在過去的過去所發生的動作。

Examples:

Mary was hungry because she hadn’t eaten breakfast.

Charlie lost his way to the hotel although he had been there a few days earlier.

I realized that I hadn’t eaten a single French Fry since I started my diet.

◆◇一般現在時和一般將來時 -

一般現在時在時間和條件從句當中表示將來時的動作。

Examples:

As soon as I save enough money I’ll buy a big house.

When he gets back home he will phone a friend in New York.

If it rains tomorrow we will cancel the camping trip.

◆◇過去進行時 { be (was,were)+ 現在分詞 }

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