问题 解答题
解下列方程组
(1)
y=x-2
2x-y=7
(用代入法解)         
(2)
2x+3y=13
3x-2y=7
(用加减法解)
答案

(1)

y=x-2①
2x-y=7②
,把①代入②得,2x-(x-2)=7,解的x=5;把x=5代入①得,y=5-2=3,

故此方程组的解为:

x=5
y=3

(2)

2x+3y=13①
3x-2y=7②

①×2+②×3得,13x=47,解得x=

47
13

①×3-②×2得,13y=25,解得y=

25
13

故此方程组的解为:

x=
47
13
y=
25
13

阅读理解

阅读理解。

        I am a writing teacher at a middle school.

        At the end of a writing class, I asked the students to share what they had written. We had a new

student at the school, Al. Al had been with us for only a short while and was still trying to fit in (适应),

so I was a little surprised when he volunteered to read. I asked him to read, but inside I wished that the

other students would not laugh at him.

       Al began to read, "If I had one wish, it would be to meet my dad..." He started out loud and clear.

He told how he had never seen his father. He told how he tried to be the only man in the house at such

a young age.

       I took a look at the students. I knew some kids liked to laugh at others. However, all of my students

were listening. They were letting him do this, I thought. They were allowing him to share something.

      "If I had one wish, it would be to meet my dad, so I wouldn't have to close my eyes every night just

wondering what he looks like," Al finished. The class stood up and applauded (鼓掌). They all ran to Al

with hugs. My eyes got wet.

      This is why I teach. I teach because I can watch kids grow and laugh and learn and love.

1. The writer is _____ at a middle school.

A. an English teacher

B. a writing teacher

C. a listening teacher

D. a reading teacher

2. Al was ______ student in that school.

A. the youngest

B. the best

C. the worst

D. a new

3. From Al's article we knew that ______.

A. Al lost his father when he was a baby

B. Al had never seen his father

C. Al knew what his father looked like

D. Al looked like his father

4. What does the underlined word "hugs" mean?

A. 停靠

B. 拥抱

C. 缠紧

D. 紧靠

5. The teacher and all the students were ______ Al.

A. surprised at

B. interested in

C. moved by

D. worried about

单项选择题 A1/A2型题