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[初一英语试题]Unit 21 What are you doing?练习
作者:Siny 文章来源:中国教师站cn-teacher 点击数: 更新时间:2007-4-21 19:29:06
Unit 21 What are you doing?练习

A

【请你一试】

时态填空。

1.The bird_________________(sing) in the tree now.

2.You_______________(not read). You__________(write) now.

3.- ______________ she_____________(run) near the lake?

- Yes, she is.

4.-What are you doing?

- I____________(make) the bed.

【分析归纳】

现在进行时表示现在或现阶段正在进行的动作或存在的状态。现在进行时是由助动词be+动词的现在分词构成。助动词be随着主语人称和数的变化而变化,即I am doing, You are do-ing, We are doing, They are doing, She /He is doing.

动词现在分词形式构成的几种方法:

【答案详解】

1.high和low都不能用来表示人高或矮,因此选A。

2.表示树的高度时常用tall。

3.用来表示一个人或物高高在上时,常用high,而tall或short不能用来表达此意。故此题选B。

4.tall或short不能用作副词修饰动词,而high可以用做副词。所以正确答案为C。一般情况下,在动词末尾加ing,例如:

play - playing go - going read - readingclean - cleaning work - working

以不发音的字母e结尾的动词,先去掉e,再加ing。例如:

come - coming make - making ride - ridingtake - taking have - having

以重读闭音节结尾的动词,中间只有一个元音字母,词尾只有一个辅音字母,构成现在分词时,要双写这个辅音字母再加ing。例如:

put - putting sit - sitting run - running

begin - beginnig get - getting

注意:begin的重读闭音节是在第二个音节上,所以要双写n。如果重读在第一个音节上,词尾的辅音字母则不双写。如:listen - listening

现在进行时的否定形式的构成是在助动词be后加not。isnot可以缩写成isn’ t,are not可以缩写成aren’ t,am not没有缩写形式。现在进行时的疑问形式是把助动词be放在主语之前,句尾加问号。一般疑问句读升调,特殊疑问句读降调。一般疑问句的肯定句回答用“Yes,主语+助动词be”,否定回答用“No,主语+助动词be+not”。例如:

She is drawing a picture. 她在画画。

—Are you reading a book?你在看书吗?

—Yes, I am. /No, I’ m not. (No, I am not. )是的,我在看书。/不,我不在看书。

—What are you doing now?你在干什么?

—I’ m doing my homework now. 我在做家庭作业。

They are not making a plane. They are playing cards. 他们不在制做飞机,他们在打牌。

答案:

1.is singing

2.aren’ t reading. are writing

3.Is, running

4.am making

【知识迁移】

I.看图回答问题。

1.-What is Meimei doing?

-________________


2.What are they doing?

-_________________


3.-Are they playing basketball now?

-___________________

-________


4.-What are you doing?

-________________


5.-Are you doing your home work now?

-__________________


6.-Are you putting on your clothes?

-____________________


Ⅱ.完形填空。

It’ s a fine Sunday morning. There 1 many children in the park. They 2 happily. Some 3 photos under a big tree. Some girls are singing and 4 . 5 are running up the hill. Li Lei 6 by the lake. He is reading a book. What Jim 7 now? He 8 with a yo-yo.

1.A.is
B.are
C.have

2.A.are playing
B.is playing
C.play

3.A.is taking
B.take
C.are taking

4.A.dancing
B.dance
C.fly a kite

5.A.A boy
B.Some boys
C.Tom

6.A sit
B.sits
C.is sitting

7.A.is, doing
B.are doing
C.does, do

8.A.plays
B.is playing
C.are playing

【答案详解】

1.1.She is going to school.

2.They are having an English lesson.

3.Yes, they are.

4.We are cleaning the classroom.

5.No, we aren’ t.

6.Yes, I am.

Ⅱ.1.B 空格后为复数名词many children,不能用is。have不能和there连用表示“某地有某物”。此空选are符合语法要求。

2.A通过上下文可知,本短文讲述的是目前正在发生的事情,所以此句应用现在进行时,C.play是一般现在时,不符合要求。此句的主语是they,而B.is playing只能和单数第三人称连用,应排除。故正确答案为A。

3.C some作主语时,用做复数形式,因此只能选择C。take只能用于一般现在时的句子中。

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