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句型转换 公开课 PPT

发布时间:2014-03-05 19:05:50  

陈经纶中考复习人教版英语

句型转换

太难了。。。。。

预 习 检 测

常见的be 动词:am is are was were 常见的情态动词:can may must will should 常见的助动词:do does did have has

I am from China.

Are you from China?

Smoking is not bad for health~

We are a family. Are you a family?

We aren’t a family. We eat you, hahaha~

I was born in 1994

Were you born in 1994?

I wasn’t born in 1994.

There were some comic books (小 人书)in the1980s.

There weren’t any robots in the 1980s.

I am not from China; Smoking isn’t bad for our health; We aren’t a family; I wasn’t born in 1996; There weren’t any robots in the 1980s I am from China. Are you from China? Smoking is bad for our health. Is smoking bad for our health? We are a family. Are you a family? I was born in 1994.Were you born in 1994? There were some comic books in the 1980s Were there any robots in the 1980s?

小结:将肯定句改成否定句,如 果句子中有Be 动词(am, is, are, was, were),直接在后面加上 not ,构成 am not , isn’t , aren’t , wasn’t , weren’t 。而改成一般疑问句只 需把 be 动词 提到句首。但需 要注意要把some 改成 any , 同时还要注意人称的变化。

I can’t beat everybody. I can ONLY beat little Monster(小怪兽).

Teenagers(青少年) should be allowed(允许) to choose (选择) their own clothes?

Should teenagers be allowed to choose their own clothes?

Teenagers shouldn’t be allowed to choose their own

clothes.

I can’t beat(打败)everybody; I won’t be a baskeball player; Teenagers(青少年) shouldn’t be allowed(允许) to choose their own clothes.
I can beat everybody.Can you beat everybody? I will be a basketball player. Will you be a basketball player? Teenagers should be allowed to choose their own clothes. Should Teenagers be allowed to choose their own clothes?

小结:将肯定句改成否定句,如 果句子中有情态动词 can,will,shall,should,may 等,则 直接在后面加上 not ,构成 can’t , won’t , shan’t , shouldn’t , may not 。但 must 除外。改成一般疑问句, 只需要把 情态动词 提到句 首,需要注意人称的变换。

He goes to school by bike every day? Does he go to school by bike every day?

He doesn’t go to school by bike every day. She goes to school by bus.

Do WangHao and MaLong play teble tennis all the time?
Wang Hao and Ma Long don’t play table tennis all the time.

He didn’t use to be an actor He used to be a farmer.

They have been to the amusement park. Have they been to the amusement park?

They haven’t been to the amusement park. They just have been out.

She has sung some English songs.

She goes to school by bike every day. She doesn’t go to school by bike everyday. Ma Long and Wang Hao play table tennis every day. Ma Long and Wang Hao don’t play table tennis all the time. He used to be a far

mer. He didn’t use to be a farmer They have been to the amusement park(游乐园). They haven’t been to the amusement park. She has sung some English songs. She hasn’t sung any English songs

小结:将肯定句改成否定句,如 果句子中没有Be 动词和情态动词, 则必需使用助动词 do , does , did , have 和 has 。其中 does 和has 用在 三单 中,同时改后原动词要 还原 。

She goes to school by bike everyday. Does she go to school by bike everyday? MaLong and WangHao play table tennis all the time. Do Ma Long and Wang Hao play table tennis all the time? He used to be a farmer. Did he use to be a farmer? They have been to the amusement park. Have they been to the amusement park? She has sung some English songs. Has she sung any English songs?

小结:将肯定句 改成一般疑 问句,如果句子中没有Be动词 和情态动词,则需要把 助动词 放到句首,同时改后要把原动 词 还原 。

试一试,你能把下 面句子改成否定句 和一般疑问句吗?

1.She did her homework last weekend. 2.The teacher has taught a lot of students. 3.The teacher has a lot of students.

本课总结: 1.将肯定句改成否定句,首先要看句子中是否有Be动词, 如果有Be 动词,只需在后面加上not 就可以构成否定。如 果有情态动词,只需在情态动词后面加上not 就可以构成否 定(must 除外)。如果没有,则要选择相应的助动词 do, does,did, have和has 来构成否定。 2,将肯定句改成一般疑问句,同样需要确定句子中是否有 Be动词,如果有,只需将其提到句首,其他照抄;如果有 情态动词,只需将情态动词提到句首,其他照抄;如果只 有行为动词,那么要根据需要选择恰当的助动词,将其提 到句首,同时要将原动词还原。简言之,三步走,“一提, 二写,三问号” 3,注意:(1)在否定和疑问句中,some 经常改成any; ( 2 ) 要准确判定have ,has ,do ,does, did 是否是 助动词; (3)在提助动词后,切记将原动词还原。


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