《2025年快乐过暑假江苏凤凰科学技术出版社七年级提优版》

5. 如图,网格中每个小正方形边长为1,△ABC的顶点都在格点(网格线的交点)上,利用网格画图.

(1)在图(1)中画出将△ABC先向上平移3格,再向左平移2格,得到的$△A_1B_1C_1($点A的对应点为$A_1,$点B的对应点为$B_1,$点C的对应点为$C_1),$线段AC扫过图形的面积为______；
(2)在图(2)中画出将△ABC绕点A逆时针旋转90°得到的$△A_2B_2C_2($点B的对应点为$B_2,$点C的对应点为$C_2),$线段$B_2C_2$与线段BC的位置关系为______.

答案：
5.
(1)如图
(1),△A₁B₁C₁即为所求.
14 [解析]由图可知线段 AC 扫过图形的面积为$4×6-\frac {1}{2}×2×3-\frac {1}{2}×4×1-\frac {1}{2}×2×3-\frac {1}{2}×4×1=14$.

(2)如图
(2),△A₂B₂C₂即为所求.
B₂C₂⊥BC

1. My grandpa's lanterns are made of silk.
2. The Spring Festival is a Chinese traditional festival.
3. It takes me some days to carve such a picture.
4. There are many types of traditional Chinese crafts.
5. Some families are not even able to pay for pens and notebooks.

答案： 1. are made of 2. traditional 3. to carve 4. types of 5. even

1. Tony likes model planes. He C three nice model planes last month.
A.making
B.makes
C.made
D.has made

答案： C

2. There are so many fish swimming in the pool. They ____Cvery happy.
A.taste
B.smell
C.look
D.sound

答案： C

3. The kite is made of paper, and the paper is made from wood.
A.of；of
B.of；from
C.from；from
D.from；of

答案： B

4. —Your picture is very beautiful. Can you ____B?
—Thanks. Here you are.
A.show it me
B.show it to me
C.show me it
D.show me to it

答案： B

5. —Hi, Sandy. Shall we go to the cinema tomorrow afternoon?
—D
A.Thank you.
B.Forget it.
C.Me too.
D.Good idea!

答案： D

6. (C)—The new shopping mall looks ____. Would you like to go with us?
—No, thanks. I don't feel ____ today.

A.well；well
B.well；nice
C.good；well
D.nice；good

答案： C