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Idon'tknowifhehere.Ifhe,I'lltellyou.A.comes,willcomeB.willcome;willcomeC.comes;comesD.willcome;comes
题目详情
I don't know if he _ here.If he _ ,I'll tell you.
A.comes,will come B.will come;will come
C.comes;comes D.will come;comes
A.comes,will come B.will come;will come
C.comes;comes D.will come;comes
▼优质解答
答案和解析
D.第一个“if”是“是否”的意思,可加将来时.第二个“if”是“如果”的意思,不可用将来时.
在一般现在时的肯定句中,当主语为非第三人称单数时,谓语动词用原形;
当主语为第三人称单数时,谓语动词用单数第三人称形式.
实义动词的一般现在时的单数第三人称形式遵从“s,es,ies”六字母规则.
实意动词单数第三人称变化规律:
注意:不规则变化的有have—has,be—is,go—goes,do—does
一般现在时,当主语是第三人称单数时,谓语动词要用第三人称单数形式
主语是第三人称单数有以下几种情况:
(1) 不可数名词做主语:
Some water is in the glass
(2) 单个的可数名词做主语:
The girl is Chinese.My watch is on the dresser.
(3) He ,she ,it 等代词单个做主语:
He is in the tree.She likes her family very much.
(4) 单个的人名,地名或称呼作主语:
Mary is a doctor.Uncle Li speaks a little English.
Changchun is a beautiful city.
(5) 指示代词this,that 等作主语:
This is a pear.That is an apple .
(6) Everyone,everything ,something,nobody,nothing.等不定代词作主语时
Is everyone here today?Everything is ok .
(7)单个数字作主语时:
”8” is a good number in China.
动词单数第三人称形式的一般现在时的句子的否定句、疑问句及特殊疑问句.
否定句:
在主语的后面实义动词前加doesn’t(注意实义动词应恢复原形.)
主语(单三)+doesn’ + 动词原形+其他
Jim likes football变否定:Jim doesn’t like football
He has lunch at school.变否定:He doesn’t have lunch at school.
一般疑问句及答语,在句子前面加助动词does.实义动词恢复原形
Does +主语(单三)+ 动词原形+其他
Does your father work Yes,he does./No,he doesn’t
特殊疑问句:特殊疑问词+一般疑问句
特殊疑问词+ does +主语(单三)+ 动词原形+其他
Where does a bird live
How does she go to school?
在一般现在时的肯定句中,当主语为非第三人称单数时,谓语动词用原形;
当主语为第三人称单数时,谓语动词用单数第三人称形式.
实义动词的一般现在时的单数第三人称形式遵从“s,es,ies”六字母规则.
实意动词单数第三人称变化规律:
注意:不规则变化的有have—has,be—is,go—goes,do—does
一般现在时,当主语是第三人称单数时,谓语动词要用第三人称单数形式
主语是第三人称单数有以下几种情况:
(1) 不可数名词做主语:
Some water is in the glass
(2) 单个的可数名词做主语:
The girl is Chinese.My watch is on the dresser.
(3) He ,she ,it 等代词单个做主语:
He is in the tree.She likes her family very much.
(4) 单个的人名,地名或称呼作主语:
Mary is a doctor.Uncle Li speaks a little English.
Changchun is a beautiful city.
(5) 指示代词this,that 等作主语:
This is a pear.That is an apple .
(6) Everyone,everything ,something,nobody,nothing.等不定代词作主语时
Is everyone here today?Everything is ok .
(7)单个数字作主语时:
”8” is a good number in China.
动词单数第三人称形式的一般现在时的句子的否定句、疑问句及特殊疑问句.
否定句:
在主语的后面实义动词前加doesn’t(注意实义动词应恢复原形.)
主语(单三)+doesn’ + 动词原形+其他
Jim likes football变否定:Jim doesn’t like football
He has lunch at school.变否定:He doesn’t have lunch at school.
一般疑问句及答语,在句子前面加助动词does.实义动词恢复原形
Does +主语(单三)+ 动词原形+其他
Does your father work Yes,he does./No,he doesn’t
特殊疑问句:特殊疑问词+一般疑问句
特殊疑问词+ does +主语(单三)+ 动词原形+其他
Where does a bird live
How does she go to school?
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