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2019年年秋人教版英语(河北)七年级上册作业课件:Unit 2 第三课时 Grammar Focus共11张PPT语文

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Unit 2 This is my sister.
第三课时 Grammar Focus

单数句变为复数句
转变原则:四变,一去,一坚持。 1.四变 ①指示代词的变化:this和that分别变为these和those。 This (That) is a pen.→These (Those) are pens. ②人称代词的变化:I变为we,you还是you,he/she/it变为they。 I'm a student.→We are students. ③be动词的变化:am或is变为are。 I'm a girl.→We are girls.

④可数名词的变化:可数名词单数变为复数时,要遵循以下变化规则: ?一般情况下词尾加-s。 book→books书;pen→pens钢笔 ?以s,x,ch,sh结尾的词加-es。 bus→buses公共汽车;watch→watches手表 ?以o结尾的词加-s或-es。 photo→photos照片;tomato→tomatoes西红柿

?以辅音字母加y结尾的,将y变为i,再加-es。 family→families家庭 ?以f或fe结尾的单词,将f或fe变为v,再加-es。 leaf→leaves叶子;knife→knives刀子 2.一去:即名词前不定冠词a/an要去掉。 This is a ruler.→These are rulers. 3.一坚持:即原句中的形容词、定冠词the、副词、介词短语等保持不变。 What color is the jacket?→What color are the jackets?

who引导的特殊疑问句 who引导的特殊疑问句通常用来询问人的姓名和身份,可以用来询 问男性、女性、单数或者复数的人。常用句型“Who is+人称代词主 格单数?/Who are+人称代词主格复数?”。 【注意】其回答形式应为“人称代词主格+is/are+...”,不能回答为 “It is/That is/This is/These are/Those are...”。

一、写出下列单词的复数形式。

parents

buses

1.parent ________

2.bus_______

babies

apples

3.baby __________ 4.apple_________

5.boy __b_o_y_s_____ 6.pen__p_e_n_s_____

7.family __f_a_m_i_li_e_s__ 8.friend__fr_i_en_d_s____

9.watch __________10.box________

watches

boxes

二、用Th括es号e 内所给单词的适当形式填空。
11.__________(this) are my brothers. 12.Are those your __p_a_r_e_n_ts____(parent)?
13.What are __t_h_e_y___(it)?
14.These are her __f_r_ie_n_d_s__(friend). 15.She and I _______(be) in China.
are

三B、单项选择。 ( )16.This ________ my sister and those ________ my parents. A.is; is B.is; are C.are; is D.are; are ( C )17.(高邑县2017-2018学年七年级上学期期末考试)—Are those students over there your classmates? —Yes, ________. A.he is B.is C.they are D.they aren't

A
( )18.(河北省2017-2018学年七年级上学期第一次月考)—________ is that man?
—He is my uncle. A.Who B.What C.How D.What color ( C)19.—Who are these two boys? —________ my friends, Jack and Eric. A.These are B.They is C.They are D.These is

A ( )20.—Is ________ your family photo? —Yes, it is. And ________ are my brothers. A.this; these B.these; these C.these; this D.this; this

四、按要求改写下列句子。

21.TheWy haoreamrey grandparents.(对画线部分提问)

_____________they?

22.Is this your sister?(改为复数句)

Are these ___________ your

____s_i_st_e_r_s__?

23.How is she?(改为复数句)

How ____a_r_e_t_h_e_y_? 24.That's a pen.(改为复数句)

__________________. 25.ThTehsoesaeraerne'tpoernasnges.(改为单数句)

__________________ orange.

This isn't an



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