非常好的初二英语练习

每日一练（10.29）

1. 设P (m ，m +2)是坐标平面内某一象限的整点(横纵坐标皆为整数的点) ，已知点P 到x 轴的距离与它到y 轴的距离之差为2m +2，求点P 关于y 轴对称的点的坐标．

2. 在平面直角坐标系中，P （1，4），点A 在坐标轴上，S △PAO =4，求P 点坐标．

3. 我们知道，任意两点关于它们所连线段的中点成中心对称，在平面直角坐标系中，任意两点P （x 1，y 1）、Q （x 2，y 2）的对称中心的坐标为 ⎛x 1+x 2y 1+y 2⎫, ⎪观察应用： 2⎭⎝2

（1）如图，在平面直角坐标系中，若点P 1（0，-1）、P 2（2，3）的对称中心是点A ，则点A 的坐标为；

（2）另取两点B （-1.6，2.1）、C （-1，0）．有一电子青蛙从点P 1处开始依次关于点A 、

B 、C 作循环对称跳动，即第一次跳到点P 1关于点A 的对称点P 2处，接着跳到点P 2关于点B 的对称点P 3处，第三次再跳到点P 3关于点C 的对称点P 4处，第四次再跳到点P 4关于点A 的对称点P 5处，…则点P 3、P 8的坐标分别为、．

拓展延伸：

（3）求出点P 2012的坐标，并直接写出在x 轴上与点P 2012、点C 构成等腰三角形的点的坐标．

单项选择

( )1. I’m hungry, _______me my lunch.

A. take B. bring C. show D. help

( )2. I can play _______him in the park.

A. to B. and C. with D. for

( )3. Don’t read ______ the sun.

A. in B. on C. under D. below

( )4. Man _________live without water or air.

A. can B. may C. can’t D. must

( )5. _________ big fish they are!

A. What B. How C. What a D. How a

( )6. John enjoys _______football, but he wants ________basketball.

A. to play, playing B. to play, to play

C. playing, playing D. playing, to play

( )7. Of all the subjects, I like English ________.

A. well B. good C. better D. best

( )8. I can’t make him________ that if he doesn’t want to.

A. do B. to do C. doing D. did

缺词填空

1. I ’m good at _______(play) volleyball.

2. He likes ______(do) the same things as me.

3. The teacher asks him _______(clean) the blackboard.

4. Excuse me,can you tell me how______(get) to the nearest hospital?

5. I try _____(eat) it only a week.

6. May ______(exercise) every day.

句型转换

l. Meimei dances best of all the girls. (同义句转换)

Meimei dances _________ than _________ _________ _________.

2. Our classroom is as clean as theirs. (变成否定句)

Our classroom _________ _________ ________ clean ________ theirs.

3. The old house isn’t there any longer. (同义句转换)

The old house ________ _____ ________ there.

4. He ran so slowly that he couldn’t catch up with others. (改为简单句)

He ran _________ slowly _________ catch up with other.

句子翻译

1．你必须往回走，到第四个路口向右拐。

You must go back and_____________________ .

2. 我父亲既不喜欢做饭也不喜欢搞卫生。

My father doesn’t like_____________________ .

3. 农民们还需要二十个学生帮他们摘苹果。

The farmers need_________________________ .

4. 我弟弟七岁时开始学骑自行车。

My brother_________________ . when he was seven years old.

5. 他的体温和正常人一样。

His temperature is_______________ a usual man’s.