内容正文:
Unit 12
Declarative Sentence
陈述句
Warm up
Presentation
Practice
Production
Presentation -Look and Say
A
Declarative Setences
Unit
陈述句
Look and Say看-看,说-说
This is my new bicycle.
47
Presentation Sentences
听老师读句子,圈出句子中的动词、助动词
和情态动词。
Heis)a teacher.
Lily dances well.
Mary can speak Japanese.
They (will go)abroad next year.
动词分类
(1)连系动词:
用法:系表结构
be,sound,look,taste,feel,smell,get,turn,become,grow,get,
turn,seem等
(2)
情态动词:
用法:后加动词原形:没有人称与数的变化:
can
could,may
might,shall
should,will
would
must,have\has to,need
(3)助动词:无词义,协助主要动词构成谓语
用法:后加动词原形,有人称、数和时态的变化
常见的助动词:
be,have,do,shall,will,should,would
(4)实义动词:意思完全,能独立用作谓语
Presentation-
Grammar Box
陈述句是用来说明一个事实或表明说话人的看法。陈述句的末尾用句号,朗读
时一般用降调。陈述句分为肯定句式和否定句式。陈述句要用正常语序。
陈述句的肯定句式:
主语+系动词+表语
He is a teacher,.他是名老师。
He is a student.
2
主语+实义动词+其他
Lily dances well..莉莉跳舞跳得很好。
He lives in Nanjing.
主语+情态动词+动词原形+其他
Mary can speak Japanese,.玛丽会说日语。
I can swim.
主语+助动词wi/have/has/had+动词原形或过去分词+其他
They will go abroad next year.他们明年要出国。
She will go to Beijing on buseness tomorrow.
Presentation
Grammar Box
陈述句的否定句式:
主语+be动词+not+其他
These are not my pencils.这些不是我的铅笔。
2
主语+do/does/did+not+动词原形+其他
I don't like singing.我不喜欢唱歌。
3
主语+助动词will/have/has/had+.not+动词原形或过去分词+其他
I won't go to work tomorrow.我明天不去上班。
4
主语+情态动词+not+动词原形+其他
She can't play the piano well..她钢琴掸得不好。
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由肯定句变否定句的方法:
找原句的动词
若动词为am,is,are,can,must,wil等,直接在动词后加not做否定。
若动词为have,want,like等实义动词,要借助助动词don't或doesn't放在原
句动词之前变否定句(原句动词为单三形式用doesn't,其他形用don't)。
2)
原句其他单词位置不变
e.g.I am a teacher.I am not a teacher.
Mary likes apples.Mary doesn't like apples.
(I)如果句子中有be动词(am,is,are,was,were)、will或shal、情态动
词(can,could,must,need,may等)的时候,只需要在这些词后面加
not
例如:
@My father is an engineer.我父亲是一位工程师。
→
My father is not an engineer.
@There were many shops near our school two years ago.
→
There were not many shops near our school two years
ago.
3He can play Chinese chess very well.
He cannot play Chinese chess very well.
l should go home at once.
I should not go home at once
He will walk the dog afte