通用版七年级英语三种时态的用法以及辨析使用课件(共19张PPT)

二、时间状语（时间标志词）不同：
1、一般现在时常与以下时间状语连用：
always ,usually, often, sometimes, seldom, hardly ever, never, on Sundays,
once a week, in the morning/afternoon/evening 等
----My sister, when she _B_____time. A. have B. has C. is having D. has had
一般过去时的用法
My father worked in Shanghai last year. He got up at 6:30 yesterday. They were over there a moment ago. I was not (＝wasn't) here yesterday. --Where did you go on vacation? --I went to the mountains. 1、表示过去某个时间或某一段时间内发生的动作或状态，通常 与过去的时间状语连用: yesterday ,last week(month, year), in 2012, three days ago，just now, the other day,等。
2. Sam was a little boy at that time.（变为否定句） Sam __________ __________ a little boy at that time. 3. His friends were in the library just now.（对划线部分提问） __________ __________ his friends just now? 4. Were they very happy yesterday?（作否定回答） No, __________ __________. 5. Was your brother born in Chongqing?（作肯定回答） Yes, __________ __________.
一般现在的用法
I don’t play sports---I only watch them on TV. ----How often does he surf the Internet? ----He surfs the Internet twice a week. 3.表示主语具备的性格和能力等，例如： They know English. She is always ready to help others. Bill likes beef, but he doesn’t like chicken.
一般现在时的用法
4.表示客观真理、科学事实、格言警句及其他不受时间限制的客观 存在。例如： Our physics teacher said that light travels much faster than sound. Three plus five is eight. Shanghai lies in the east of China. 5.在时间、条件状语从句中，用现在时表示将来的动作，从句的谓 语动词用一般现在时。例如： She will email you as soon as she gets to Beijing. If you come this afternoon, we will have a meeting.
七年级三种时态的用法及辨析使用
一般现在时的用法
1. 表示现在的状态, 例如： I am fifteen. He is 12. She is at home. Where’s the schoolbag? I have three ping-pang balls 2. 表示经常的或习惯性的动作或存在的状态，常与表示频度的时间状语， 如 often , sometimes, always, every day, once a week, on Saturdays等 连用。例如： I go to school at 7:30 every day. “Where’s the school bag?” Tom always asks.
A. am
B. will be C. was
D. being
3. Ken his jacket in the gym. He has to get it back.
A. left B. leaves
C. is leaving D. was leaving
现在进行时的用法
1、表示现在（说话瞬间）正在进行或发生的动作。如： The students are listening to the teacher. He is watching TV now. 2、表示当前一段时间内的活动或者现阶段正在进行的动作。如： I’m reading an interesting book this month. She’s learning English at college. 3、表示按最近计划或安排将要发生的动作，常用的这类动词有go, come, leave ,start, arrive等，其现在进行时可表将来。 My friend is coming for dinner. He is leaving for Beijing next week.
B. are driving
C. were driving
D. have driven
3. — Who ______ that piano?
— My sister, when she ______time.
A. plays ; has
B. is playing; has
C. plays; is having
一般现在时、现在进行时与一般过去时的比较
一、意义不同： 一般现在时、现在进行时和一般过去时等，它们都是指谓语动词的时态。什 么是时态呢？在英语中，表示不同时间发生的动作或存在的状态，需用不同 的动词形式，这种不同的动词形式称为时态。也可以简单地理解为：“时” 就是谓语动词所发生的时间，“态”就是谓语动词所用的形态，例如： 1、我经常打篮球。 I often play basketball. 2、我正在打篮球。 I am playing basketball now. 3、我昨天下午打篮球了。I played basketball yesterday afternoon.
D. is playing; has had
4. Would you mind turning down the music? I _a_m___w__r_i_t_in__g__(write) a report now.
5. Be quiet, please! The babyis__s_l_e_e__p_i_n_g__ (sleep)in the bedroom at the moment.
3. In spring, she often flies (fly) kites in the Red Star Park. 4. This café serves (serve)afternoon tea from three to five every
day in England. 5. ----Who is playing that piano?
2、现在进行时常与以下时间状语或特殊语境连用：
now at the moment at this time Look! Listen! Where is Maria? Don’t talk here. It’s nine /ten.
现在， 此时，此刻 ,
此时 看！ 听！ Maria在哪？ 别在这谈话。 九/十点了。
一般过去时的用法
I often went to school on foot. He always went to work by bus last year. When I was a child, I often swam in the river. 2、表示过去经常或反复发生的动作，常和often, always等表 示频度的时间状语连用。
3、一般过去时常与以下时间状语连用： yesterday ,last week(month, year), in 2012, three days ago，just now, the other day, always ,often等 三、谓语动词的形式不同:
课堂练习
用所给单词的适当形式填空。 1. He________ TV Fra Baidu bibliotekvery evening. (watch) 2. Tom, with his classmates, often ______ football after school. (play) 3. Your shoes _______ under the bed. (be) 4. She always ______ up at six in the morning.(get) 5. John ________ like his father. (look) 6. It’s nine o’clock. My father _______________(work) in the office. 7. --__________he__________(clean) the classroom?
He said he wouldn’t go if it rained. He said he would let me know when he got the information.
3、在时间、条件状语从句中，常用一般过去时替代过去将来时， 简称主过从过。
一般过去时的用法
He put down the heavy box，took out the keys，and opened the door. They moved the chairs to the table，sat down and began to have supper.
能力提升
1. Just a minute! My brother ________ his car in the garden.
A. washes
B. is washing
C. washed
D. will wash
2. You . Don’t talk on the phone.
A. will drive
巩固练习
1. —What do you think of the milk? —Oh, ittastes ( taste ) good.
2. If youaren’t (not be ) careful enough in the exam, you will not
get a good grade.
4、表示过去发生的一连串动作。 过去发生的一连串动作，若用and，or，but等并列连词连接， 则一律用过去式。
巩固练习之句型转换
1. We had some delicious food this morning.（改为一般疑问句) _____________________________________?
6. —I__a_m___s_a_v_i_n__g__ (save) my money so I can buy a car. — So am I.
7. More and more people are worried about the serious air pollution because the number of family cars__i_s__in__c_r_e_a_s_i_n__g_ (increase)all the time.
巩固练习之能力提升
1.—How old were you when you （start）learning
English?
—Ten years old.
2. — I called you yesterday evening, but you were not in .
— Sorry, I ________ in the shop with my mother.