牛津译林版八年级英语上册课件：Unit8 Grammar
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否定句：
They weren't doing morning exercises at 9:05 yesterday morning.
一般疑问句：
Were they doing morning exercises at 9:05 yesterday morning?
Yes, they were. No, they weren't.
一般疑问句：
Are they playing with a yo-yo?
对划线部分提问：
What are they playing with?
She is watering the flowers.
She is watering the flowers.
否定句：
She isn't watering the flowers.
一般疑问句：
Is she watering the flowers?
对划线部分提问：
Who is watering the flowers?
They were doing morning exercises at 9:05 yesterday morning.
They were doing morning exercises at 9:05 yesterday morning.
一般疑问句： Was the baby drinking milk at this time yesterday?
对划线部分提问： What was the baby drinking at this time yesterday?
They were playing basketball at this time last Sunday.
They were playing basketball at this time this Sunday.
否定句： They weren't playing basketball at this time this Sunday.
一般疑问句：
Were they playing basketball at this time this Sunday?
过去进行时的基本用法
表示过去某一时刻正在进行的动作以及 过去某一段时间内持续进行的动作,常与 表示过去的具体时间，如：at that time，
at this time yesterday， at 9 last night , at that moment 等连用。 或者在when, while, as引导的时间状语从 句中使用。
Unit 8 Natural disasters Grammar
He is playing basketball.
He is playing basketball.
否定句：
He isn't playing basketball.
一般疑问句：
Is he playing basketball?
He is trying on the shoes.
否定句：
They aren't playing computer glaying computer games?
They are playing with a yo-yo.
They are playing with a yo-yo.
否定句：
They aren't playing with a yo-yo.
He is trying on the shoes.
否定句：
He isn't trying on the shoes.
一般疑问句：
Is he trying on the shoes?
They are playing computer games.
They are playing computer games.
对划线部分提问： What was she playing at that time?
She was reading a newspaper from 10 to 10:30 yesterday morning.
否定句： She wasn't reading a newspaper from 10 to 10:30 yesterday morning.
动词的现在分词
※ 大多数动词直接加ing
※ 以不发音的e结尾的动词，去e加ing
※ 重读闭音节要双写结尾的辅音字母 加ing
Change the verbs into V-ing
The baby was drinking milk at this time yesterday.
The baby was drinking milk at this time yesterday.
否定句：
The baby wasn't drinking milk at this time yesterday.
一般疑问句： Was she reading a newspaper from 10 to 10:30 yesterday morning?
对划线部分提问：
When was she reading a newspaper?
现在进行时 Present continuous tense
am/is/are + doing 过去进行时 Past continuous tense
对划线部分提问： When were they playing basketball?
She was playing computer games at that time. 否定句： She wasn't playing computer games at that time.
一般疑问句：
Was she playing computer games at that time?
was/were+ doing
过去进行时的句式 （1）基本结构：was/were + v-ing （2）否定式： was/were not + v-ing
was not = wasn’t were not = weren’t （3）一般疑问句： was/were+主语+V-ing
（4）特殊疑问句： wh-+was/ were +主语+V-ing
They weren't doing morning exercises at 9:05 yesterday morning.
一般疑问句：
Were they doing morning exercises at 9:05 yesterday morning?
Yes, they were. No, they weren't.
一般疑问句：
Are they playing with a yo-yo?
对划线部分提问：
What are they playing with?
She is watering the flowers.
She is watering the flowers.
否定句：
She isn't watering the flowers.
一般疑问句：
Is she watering the flowers?
对划线部分提问：
Who is watering the flowers?
They were doing morning exercises at 9:05 yesterday morning.
They were doing morning exercises at 9:05 yesterday morning.
一般疑问句： Was the baby drinking milk at this time yesterday?
对划线部分提问： What was the baby drinking at this time yesterday?
They were playing basketball at this time last Sunday.
They were playing basketball at this time this Sunday.
否定句： They weren't playing basketball at this time this Sunday.
一般疑问句：
Were they playing basketball at this time this Sunday?
过去进行时的基本用法
表示过去某一时刻正在进行的动作以及 过去某一段时间内持续进行的动作,常与 表示过去的具体时间，如：at that time，
at this time yesterday， at 9 last night , at that moment 等连用。 或者在when, while, as引导的时间状语从 句中使用。
Unit 8 Natural disasters Grammar
He is playing basketball.
He is playing basketball.
否定句：
He isn't playing basketball.
一般疑问句：
Is he playing basketball?
He is trying on the shoes.
否定句：
They aren't playing computer glaying computer games?
They are playing with a yo-yo.
They are playing with a yo-yo.
否定句：
They aren't playing with a yo-yo.
He is trying on the shoes.
否定句：
He isn't trying on the shoes.
一般疑问句：
Is he trying on the shoes?
They are playing computer games.
They are playing computer games.
对划线部分提问： What was she playing at that time?
She was reading a newspaper from 10 to 10:30 yesterday morning.
否定句： She wasn't reading a newspaper from 10 to 10:30 yesterday morning.
动词的现在分词
※ 大多数动词直接加ing
※ 以不发音的e结尾的动词，去e加ing
※ 重读闭音节要双写结尾的辅音字母 加ing
Change the verbs into V-ing
The baby was drinking milk at this time yesterday.
The baby was drinking milk at this time yesterday.
否定句：
The baby wasn't drinking milk at this time yesterday.
一般疑问句： Was she reading a newspaper from 10 to 10:30 yesterday morning?
对划线部分提问：
When was she reading a newspaper?
现在进行时 Present continuous tense
am/is/are + doing 过去进行时 Past continuous tense
对划线部分提问： When were they playing basketball?
She was playing computer games at that time. 否定句： She wasn't playing computer games at that time.
一般疑问句：
Was she playing computer games at that time?
was/were+ doing
过去进行时的句式 （1）基本结构：was/were + v-ing （2）否定式： was/were not + v-ing
was not = wasn’t were not = weren’t （3）一般疑问句： was/were+主语+V-ing
（4）特殊疑问句： wh-+was/ were +主语+V-ing