time and tense 语法ppt

一般过去时
一般过去时
•定义
表示过去某个时间发生的动作
或存在的关系，常和表示过去 的时间状语连用
时间状语
ago,
yesterday ,the day before yesterday,last week/year/night,in 1989,just now,at the age of ,one day ,on that day ,once upon time ,then(那时）
2）表示一次性动作，如：
He wrote a book that year.
I telephoned Jack last night.
I met her last year.
3)表示最近过去的思维状态，如：
I didn’t know you were here .
I didn' t understand you.

一般现在时的用法

1）用于经常性或习惯性的动作，现在的 特征或状态，客观存在及普遍真理等。
The earth moves around the sun. Shanghai lies in the east of China. Pride goes before a fall. 骄者必败。（无论什么 时候，时态不变）
A belonged C are belonged B belong D have belonged
3．---Hi, Tom. ---Hello, Fancy. I ______ you were here. D A. don't know B. won't think C. think D. didn't know

2）在时间和条件状语从句中，可代替一 般将来时。 If it is fine tomorrow ，we will go。
3）动词
arrive,be,begin,go,leave,come, start等可表示将要发生的动 作 They arrive in Beijing this afternoon。
TRANSLATION



水在100摄氏度时沸腾。 我过生日时，他总是给我买花儿。 我期望你早点儿回家。 Water boils at 100’C. He always buys me flowers for my birthday.

I expected you to be home earlier.
时间
[ time ]
时 [ tense ]
一个概念，过去，现在和 将来。
一种语法手段，表示动 作或状态所发生或存在 的时间的动词形式。
英语动词有两个时：
① 现在时
② 过去时
现在时【present tense 】
通常表示现在时间的动作和状态，但它所表 示的时间是非常笼统的。换句话说，凡是包 括说话时在内的时间，不管是否延伸到过去 或将来，都可以视作现在，都可以用现在时。
2 过去将来
1) 表示已经确定了的计划或安 排或日历上的事件，句中需要有 具体时间，如 Tom hurried the airport because his plane left at six. The following tuseday was my birthday.
2) 在时间，条件状语从句中代 替过去将来 He said when she came he would tell her 他说她来时就告诉她 I decided to tell you when you finished homework. 我决定在你做完作业我再告诉 你
一般疑问句
1

be 动词提前.如：Are you xiao li? 借助 助动词 do.如：
Are they close friends?
2

Do you often go to school by bus? Does she take bus to school every day? Does he watch TV?
3


)现在
说话人的礼貌态度
I wandered if you could help me Did you want to see me?
I wish i had been so lucky as you
假设性过去时，与事实相反或非事实

PRACTISE
A 1． r. Mott is out. But he ______ here a few minutes ago. A. was B. is C. will be D. would be 2 He asked me whether these islands ___ to Japan. B
动词的变化形式
be : is | am | are
主语是非第三人称单数的用 动词原形 主语是第三人称单数，用动 词的第三人称单数形式
主语是 I 用 am，是她|他|它 时用 is，主语是第二人称或复 数用 are
I
am a doctor. she is a funny girl. we are students. I often go to school by bus. She takes a bus to school.
4
C He promised to tell me by himself when I ______. A. come B. would come C. came D. had come
Filling The Blanks With Its Right Form
leave 1. The bus here never _____(leave)on time. ate 2. The cat ________ (eat) a bird last night. had 3. We _______ (have) a party last Halloween. picked 4. Nancy ________ (pick) up oranges on the farm last week. made 5. I ________ (make) a model ship with Mike yesterday.
变化规则





动词的第三人称单数形式 1，一般在动词的末尾加s 如work-works 2, 以e结尾的动词，直接加s make-makes 3, 以元音字母加y结尾的动词，直接加s play-plays
4以辅音字母加 y结尾的动词，把 y变i加 es carry-carries 5 , 以sh,ch结尾的动词加es watch-watches wash-washes 特别：have，has
be
<was,were> 否定形式 did-didn't was-wasn't were-weren't
一般过去时的用法
1 过去 1）表示状态，习惯或重复性的动作，如： We lived in London years ago. 多年前我们住在伦 敦。 Tom wore glasses as a child. 汤姆小时候戴眼镜 I went to school by bus .
一般现在时【present simple】 一般过去时【past simple】
定义：
表示经常或反复发生的动作或 存在的状态，也表示过去经常 发生的事。
结构时： 主语 + be动词 | 动词的第三人 称单数 | 动词原形 + ~~~
标志词，时间状语：
often , usually, sometimes ,seldom , always ~~~
过去时【past tense】
通常表示过去时间的动作或状态，但 也不能说它与现在的时间没有联系
英语中没有将来时，但却有 许多表达将来时间的手段
Be going to do sth .
Be to do sth.
Be about todo sth
英语动词有两个不与任何体结 合的现在时和过去时的简单形 式。