小学英语动词PPT
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情态动词
must /have to Must 表示主观意愿,否定句用Mustn’t,否定回答用 needn’t I must go now. You mustn’t play in the street. Must I clean the room now? No,you needn’t. have to表示客观条件的限制的“不得不”,它有时 态和人称变化,需要助动词来否定和疑问。
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PART 3 系动词
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系动词
• be动词的几种形式
1) am is are 2) was were 3) being 4) been
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be动词的几种形式
单数 复数
第一人称
第二人称
第三人称
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be动词的用法
与名词、数词、形容词、介词连用 1) I am a doctor. 2) He is ten. 3) They are tired. 4) The cat is under the table. 5) There is a pen on the desk.
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实义动词
4. 做非谓语动词的用法(指出现在谓语动词之后的动 词,它受前面谓语动词的限制) 非谓语动词会有三种形式:
1) 原型(do) 2) 动名词(doing) 3) 不定式(to do)
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实义动词
1) 用原型:
a) let sb. do b) make sb. do c) help sb.(to) do d) had better do
hadn’t
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助动词的用法
1) Do you get up early every day? 2) I didn’t (没)have lunch yesterday. 3) Will you be back soon? 4) He hasn’t (没)finished the work
yet.
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实义动词
2) 用动名词: a) like doing b) enjoy doing c) finish doing d) 介词之后用动名词 be good at doing what about doing thank you for doing
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实义动词
3) 用不定式: a) want to do b) decide to do c) plan to do d) would like to do e) tell sb. ( not) to do f) ask sb. (not) to do
I don’t have to carry the big box. He had to wash his clothes.
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情态动词
May 表示请求别人允许。 May I use your bike? 表示可能性。 He may be a teacher. He may live in this building.
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PART 4 实义动词
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实义动词
1. 实义动词指的是有具体行为意思的动词。 2. 实义动词在句中可以做谓语动词和非谓语动
词。
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实义动词
3. 做谓语动词的用法 四种形式:单三,现在分词,过去式,过去分词
注意:掌握四种形式的变化规律
1) He works in the office. 2) We are dancing together. 3) I caught a cold last week. 4) She has watered the flower.
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PART 2 情态动词
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情态动词
1. 共同特点 1) 情态动词后面跟动词原型 2) 无论否定、疑问都用情态动词 3) 只有时态变化,无人称变化
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情态动词
can / could 1. 在表示有能力作某事时,could是can的过去式。 I can swim. I could swim at the age of five. 2. 在表示请求允许的时候两者和互换, could比 can语气更委婉。 Can I help you? Could you open the window?
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Thank you
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1. 助动词 2. 情态动词 3. 系动词 4. 实义动词
动词的构成
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PAR
• 助动词的几种形式
1) do /don’t 2) does/ doesn’t 3) did/ didn’t 4) will /won’t 5) have, haven’t /has, hasn’t/had 6)shall should/shan’t shouldn’t
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系动词
其他系动词 1) 变成类get,turn,become,make 2) 感观动词look,sound,smell,taste,feel 3) 似乎类 seem appear 4) 保持类stay keep
以上系动词只和形容词连用,构成系表结构 1) I feel hungry. 2) The day gets longer and longer. 3) He looked happy.