内容正文:
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正 文
七年级 上 册 人教
英语
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Unit 2 This is my sister.
单元语法精讲与精练(Grammar Focus)
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单元语法精讲
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一、指示代词
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【注意】
(1)回答this/that作主语的疑问句时,答语用it代替this/that;回答these/those作主语的疑问句时,答语用they代替these/those。
(2)向别人介绍某人时说This is…,而不说That is…。
(3)打电话时,用This is…介绍自己,用Who's that?询问别人。
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二、主格人称代词
人称
单数
复数
第一人称
I我
we我们
第二人称
you你
you你们
第三人称
he,she,it他、她、它
they他/她/它们
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1.主格人称代词在句中作主语。
如:I am a student.我是一名学生。
2.几个人称代词同时作主语时,排列顺序一般是“你,他(她),我”。
如:You,Tom and I are in Class 2.我、你和汤姆在(2)班。
3.it通常指物,但有时也可指人、时间、距离、天气等。
如:It's Li Ming at the door.是李明在门口。
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三、单数句变复数句
eq \a\vs4\al\co1(变,化,规,则)
eq \b\lc\{(\a\vs4\al\co1(\b\lc\ \rc\](\a\vs4\al\co1(①指示代词变化 this→these that→those,②人称代词变化\b\lc\{(\a\vs4\al\co1(第一人称I→we,第二人称you不变,第三人称he/she/it→they)),③be动词变化,④名词变化 可数名词变为其复数形式))⇒四变,⑤删掉冠词a/an ⇒一去,⑥原句中形容词、副词、定冠词、疑问词等不变⇒保持))
如:This is a red box.―→These are red boxes.
Who is a teacher?―→Who are teachers?
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单元语法精练
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This
that
these
一、根据句意,用this,that,these和those填空。
1. is a ruler and is a pen.
2.—Are your cups?
—No.These are her cups.
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those
this
that
3.—Are your friends?
—Yes,they are.
4.—Dad, is my friend,Kate.
—Hi.Kate!
5.—What's over there(那儿)?
—It's a school.
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D
二、单项选择。
( )1.—Is that your father?
— .It's my uncle.
A.Yes,that is
B.No,that isn't
C.Yes,it is
D.No,it isn't
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B
( )2.Mr.Smith, my friend.
A.it is
B.this is
C.this
D.that
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C
( )3. are my sisters and is my mother.
A.These;these
B.Those;those
C.These;this
D.That;those
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C
( )4.— is she?
—She is my cousin,Kate.
A.What
B.How
C.Who
D.What's
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D
( )5.—Are these your cousins?
— .
A.Yes,these are
B.No,these aren't
C.Yes,they aren't
D.No,they aren't
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This is
brother
Is this
Those are
keys
三、按要求完成下列句子,每空一词。
1.These are his brothers.(改为单数句)
his .
2.This is my brother.(改为一般疑问句)
your brother?
3.