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動(dòng)詞是表示動(dòng)作或行為的詞。按其詞義和在句子中的作用可以分為連系動(dòng)詞、助動(dòng)詞、情態(tài)動(dòng)詞和行為動(dòng)詞。
1、be動(dòng)詞(am,is,are)
① be動(dòng)詞做謂語(yǔ)時(shí),要與主語(yǔ)在人稱(chēng)和數(shù)上保持一致。
用法口訣:
我用am,你用are,
is 跟著他、她、它,
單數(shù)名詞用is,
復(fù)數(shù)名詞都用are。
變疑問(wèn),往前提。
句尾問(wèn)號(hào)莫丟棄,
變否定,更容易,
be后not的莫忘記。
疑問(wèn)否定任你變,
句首大寫(xiě)莫遲疑!
2、助動(dòng)詞(do,does,did)
① do,does用于一般現(xiàn)在時(shí)
does用于第三人稱(chēng)單數(shù)主語(yǔ)前。
Does she like apples?
Does he like swimming?
Does Sam go to school on Mondays?
Do用在除第三人稱(chēng)單數(shù)以外的主語(yǔ)前。
Do you like pears?
Do they run every day?
Do Sam and Amy go to school on Mondays?
did為Do和Does的過(guò)去式,用于一般過(guò)去時(shí),后面可以接任意主語(yǔ)。
Did you go to park yesterday?
Yes,I did.
No,I didn't.
Did he swim yesterday?
Yes, he did.
No, he didn't.
注意:助動(dòng)詞后動(dòng)詞要變回原形!
② 否定形式:
do not= don’t
does not =doesn’t
did not=didn’t
I don't like football.
He doesn't like running.
Amy didn't go to school yesterday.
3、情態(tài)動(dòng)詞(can,may,must,should,will,would,shall等)
情態(tài)動(dòng)詞表示說(shuō)話人對(duì)某一動(dòng)作或狀態(tài)的態(tài)度,表示“可能”,“可以”,“需要”,“必須”,“應(yīng)當(dāng)”等意思。
注意:情態(tài)動(dòng)詞沒(méi)有人稱(chēng)和數(shù)的變化,后面的動(dòng)詞要用原形。
1)can和may都可以用來(lái)表示請(qǐng)求或允許,但may比can更正式,更客氣些。
如:
Can I open the door?
May I come in?
2)must和should
① must意為“必須,應(yīng)當(dāng)”,含有一種命令的語(yǔ)氣,比較生硬,不容商量。
You must do your homework now.
你現(xiàn)在必須做家庭作業(yè)!
②should意為“應(yīng)當(dāng),應(yīng)該”,表示建議或勸告,語(yǔ)氣比較委婉,客氣。
You should do your homework now.
你現(xiàn)在應(yīng)該做家庭作業(yè)了。
3)will和would用于疑問(wèn)句,表示說(shuō)話人向?qū)Ψ教岢稣?qǐng)求或詢(xún)問(wèn),用would比will更委婉,更客氣。
Will you please open the door?
Would you open the door?
注意區(qū)別:
I’d like+名詞 我想要……
如:I’d like some apples.
I’d like to+動(dòng)詞原形 我想要做……
如:I’d like to play with you.
I like+名詞/動(dòng)名詞 我喜歡……
I like football.
I like playing football.
4) shall在問(wèn)句中表示征求對(duì)方的意見(jiàn),主要用于第一人稱(chēng)。
如:
Shall we go to work by car?
Shall I open the window?
5)否定形式:
can’t
may not
mustn’t
shouldn’t
wouldn’t
shall not
4、行為動(dòng)詞
行為動(dòng)詞也叫實(shí)意動(dòng)詞,是具有實(shí)際意義的動(dòng)詞。
如
run(跑)
jump(跳)
listen(聽(tīng))
sing(唱)
eat(吃)
...
行為動(dòng)詞在句子中有人稱(chēng)和時(shí)態(tài)的變化。
在英語(yǔ)中,不同時(shí)間里發(fā)生的動(dòng)作或存在的狀態(tài),需要用不同的動(dòng)詞形式來(lái)表現(xiàn),這就叫時(shí)態(tài)。
小學(xué)階段常見(jiàn)4個(gè)時(shí)態(tài)
一般過(guò)去時(shí)
I was two then.
I went to the park yesterday.
一般現(xiàn)在時(shí)
I am ten now.
I go to the park every day.
現(xiàn)在進(jìn)行時(shí)
I am reading a book now.
一般將來(lái)時(shí)
I will read a book tomorrow.
I am going to read a book tomorrow.
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小一至小五年級(jí)期末試題答案