初中英语时态讲解及练习 PPT

1.I _____(cook, cooked, was cooking, were cooking) breakfast when you arrived. 2.What ____you_____( do, did, was...doing, were…doing) at this time yesterday evening? 3.We_____(have, are having, had, were having) dinner when the doorbell rang. 4.While/ When/ As we____( have, had, are having, were having) dinner, the doorbell rang.
6. 用法：现在进行时表示
1)、现在（说话的瞬间）正在进行或发生的动作，强 调“此时此刻”。
E.g. He is reading . They are talking now.
2)、当前一段时间内的活动或现阶段正在进行的动作。 E.g. They are working these days. 3)、 某些动词的现在进行时，表预定的计划或即将 发生的动作。 E.g I am coming.
• 5.我妈妈在做sework. • 6.老师正在教我们如何用电脑。 • The teacher was teaching us how to use
computer.
过去进行时
1.概念：表示过去某段时间或某一时刻正在发生 或进行的行为或动作。
一般现在时 一般过去时 现在进行时 过去进行时 现在完成时 过去完成时 一般将来时 过去将来时
一般现在时
一、一般现在时：
概念：经常、反复发生的动作或行为及现在的某种状况。 时间状语： always, usually, often, sometimes, every week (day, year, month…), once a week, on Sundays, etc. 基本结构：①be动词；②行为动词 否定形式：①am/is/are+not;②此时态的谓语动词若为行 为动词，则在其前加don't,如主语为第三人称单数，则用 doesn't，同时还原行为动词。
A will B shall C do D are
5 He will have a holiday as soon as he _____the work next week.
A finishes B doesn’t finish
C will finish D won’t finish
6 There _____some showers this afternoon.
现在分词的变法有
1)、一般在动词词尾加上-ing ,E.g. jump 2)、以不发音字母e结尾的动词，先去e，再加ing. E.g have write 3)、.以重读闭音节末尾只有一个辅音字母结 尾的词，它前面是单个元音字母时要先将词 尾的辅音字母双写，再加上-ing. E.g. sit put 其句式变换都在be上做文章。
rain.
A will come; comes B will come; will come
C comes; comes D comes; will come
3 He will be back _____a few minutes.
A with B for C on D in
4 What time _____we meet at the gate tomorrow?
• 当我是个孩子的时候，我经常在街上踢足 球。
• When I was a child, I often played football in the street. • 4．我昨天完成作业了。 • I finished the homework yesterday.
现在进行时
作谓语的动词用来表示动作（情况）发生时间的 各种形式称为时态。
1 _____you ____a doctor when you grow up?
A Will; going to be B Are; going to be
C Are; /
D Will; be
2 I don’t know if his uncle _____. I think he _____ if it doesn’t
从句中用一般现在时表将来。（主 将从现） Lucy will be at home if it rains tomorrow.
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动词第三人称单数 形式变化规则
1. He______(be, am, is, are) a teacher at No. 2 Middle School. 2. He______(have, has) classes in the afternoon. 3. He______(get, gets) up at half past six every morning. 4. He always _____(come, comes ) to school on time. 5. He ______(study, studies) very hard at his lesson. 6. One and two _____(be, is, are) three. 7. Blue and yellow _____(make, makes) green. 8. The earth _____(move, moves) round the sun. 9. I will go there if I ____( be, will be, am, is, are) free tomorrow.
A will be
B will have
C is going to be D are going to have
7 It ____my brother’s birthday tomorrow. She _____a party.
②表示主语通常的能力、兴趣爱好、和性 格特征。 I like reading.
③表示客观的事实或真理。 The sun always rises in the east .
. ④表示按照时刻表或已经计划安排 好的将来行为。（只限于是go, come, leave, arrive, begin, start, take off, stop, be 等表示开始或移动意义的词。） ⑤在时间状语从句和条件状语从句中， 主句用一般将来时(will+动词原形)，
2.时间状语：at this time yesterday, at that time或以 when引导的谓语动词是一般过去时的时间状语等。
3.基本结构 主语+was/were +doing +其他 4.否定形式：主语+was/were + not +doing+其他 5.一般疑问句：把was或were放于句首。(第一个 字母大写） 其句式变化仍然要在be上做文章。
否定形式：主语+am/is/are not going to do ；主语 +will/shall not do+其他
一般疑问句：be放于句首；will/shall提到句首。 e.g. She will be back in three days.
She will not be back in three days. Will She be back in three days?
He likes music. He doesn’t like music.
一般疑问句：①把be动词放于句首；②用助动词do提问， 如主语为第三人称单数，则用does，同时，还原行为动 词。Does he like music?
什么情况下用？
①表示经常或习惯性的动作或存在的状态。 They go home once a week .
1.概念：表示现阶段或说话时正在进行的动作及行 为。 2.时间状语：Now, at this time, days, look. listen等时 间状语做标志。 3.基本结构：主语+be +doing +其他 4.否定形式：主语+be +not +doing+其他 5.一般疑问句：把be动词放于句首。
1.I ____(write, am writing, is writing, are writing) a letter now. 2.Look, it _____(begin, is beginning, am beginning, are beginning) to rain. 3.They ____(study, is studying, am studying, are studying) medicine at the Medical Institute of Chengde these days. 4.He _____(teach, am teaching, is teaching, are teaching) an English lesson at this time.
• 7. 昨天下午四点你们在打篮球吗？ • Were you playing basketball at four yesterday
afternoon? • 8.他看书时睡着了。 • He fell asleep when he was reading.
一般将来时
构成:①will,shall+动词原形，其中shall只用于第一人 称。 ②be going to +动词原形，表示主观打算，按计划， 安排要发生的事情。 ③be to +动词原形，表示客观安排 ④ be about to +不定式，意为马上要做某事，正要 做某事。(不可与副词连用） ⑤某些动词，可用进行时态表将来，如come, go, arrive, leave。 ⑥在时间状语从句和条件状语从句中，主句用一般 将来时(will+动词原形)，从句中用一般现在时表将 来。