(2)动词have第三人称用has,其余人称都用have。 -aK_
(3)第三人称单数需要在动词词尾加-s或-es。 v9QR,b`n
2)基本用法 b_ +dNoB
(1)用于表示客观真理、科学事实或习惯性的动作以及存在的特征、状态,常用的时 2Z;wU]
间标志是:often, always, sometimes, usually, every day ( week, month, year, morning ) , r-&Rjg
seldom等。例如: 9%55R >s$
The sun rises in the east. ];P$w.0
He usually goes to work by bus. 7D
PKKvQ
The Jones always go to church on Sunday. 6c>cq\~E
(2)表示按计划或安排好的将来的动作,常用的词有:go, be, start, arrive, stay等。例 8,d<&3D
如: cy T,tN
The plane arrives in Beijing this afternoon. 6g06s @kz
The project starts early this year. 5i `q
There is a conference tonight. I-<U u2
(3)由if, when 引导的条件和时间状语从句中,用一般现在时代替一般将来时。例如: :)hS-*P
When you see him, please say hello to him for me. /R\]tl#2j
If it is fine tomorrow, we will go outing. wq+% O,
2 、一般过去时 &Z3g$R 9
1)构成:动词过去式 ^'9:n\SKQ
2)基本用法 Jm0o[4
用于表示过去某一时刻或时期内发生的动作或状态。常用的时间标志词有: I.#V/{J
yesterday, then, later, next day, just now, a moment ago,ago, last year (week, month)或由 Gxjm
Ho
when, while等引导的表明过去时间的状语从句。例如: eFJ
.)Z
He died five years ago. |e49F
In those days we sowed the wheat by hand. D&0y0lxI@
He has given up smoking, but a year ago he [l"|x75-
smoked 100 cigarettes a week. P|c[EUT
When he was a child, he sold newspapers for a living. ^I2+$
3 、一般将来时 {-?^j{O0.
1)构成 YB?yi( "yL
will +动词原形 )> >Tj7
2)基本用法 Am>^{qh9
用于表示将来的动作或状态。常用的时间标志词有:the day after tomorrow in等。 @q8h'@sX
例如:They will have a final examination this afternoon. l@:|OGD;8
3)表示将来时的其他形式 ,gY bi-E
(1) “be going to + 动词原形”表示很快就要发生的 事或打算要做的事或有迹象表 Js{X33^Ju
明即将发生的事。例如: r5#8Vzr
The director is going to call on a meeting to discuss it. Rb!V{jQ
(2) “be to +动词原形”表示按计划、安排即将发生的动作或表示命令、禁止或 {k:W?`
可能性。例如: 6yU#;|6d
The Prime Minister is to speak on TV tonight. /<"<N<X
(3) “be + 现在分词”表示一个最近按计划或安排要 进行的动作,常用于表示位 Q:rQ;/b0/
置转移的词,如go, come,arrive,leave, start等,或其他动词。例如: c_p7vvI&c0
We're leaving on Friday. Ep
} {m<8c
They're moving to another hotel the day after tomorrow. .eZsKc-@
(4)“be about + 动词原形”表示即将做某事。可译 成汉语“将要,正要”。例如: ePD~SO9*
He is about to retire. yxz)32B?
4 、现在进行时 Xu[(hT6
1)构成:由 “am, is, are + 现在分词”构成。 0 rge]w.X
2)基本用法 nogdOGo
(1) 用于此刻正在进行的动作。例如: coG_bX?e
What are you doing ? I'm writing a report. r0xmDJ@y
Hurry up!We’re all waiting for you. = ^NTHc^*
(2) 与always, continually, constantly, for ever等频度副词连用,表示某种带有感情色彩 v
%|S)^c?:
(赞叹、抱怨、厌烦等)的现阶段经常发生的动作。例如: z&R
#j
He is constantly complaining about his job. ~d.Z.AD
She’s always borrowing and forgetting to pay me back. y'{*B(
5 、现在完成时 _/\U
1)构成: 由“have / has 十过去分词”构成。 I=;.o>
2)基本用法 &xg