(　　　)1. Look at the picture, each shape represents(代表) a number. Here are the sums(总和) of one row and two lines. Then what is the number that should be put in the “(　　　)”?
A. 75
B. 65
C. 60
D. 80

英数真题探究(2)
一、1~5 CBDAB
二、20
平行四边形的面积等于小直角三角形的面积，为大直角三角形面积的三分之一。

(　　　)2. As shown below, the perimeter(周长) of the trapezoid(梯形) is five times the perimeter of the circle. If the circle goes around the trapezoid, how many times does the circle spin(旋转)?
A. 10 times.
B. 5 times.
C. 4 times.
D. 25 times.

英数真题探究(2)
一、1~5 CBDAB
二、20
平行四边形的面积等于小直角三角形的面积，为大直角三角形面积的三分之一。

(　　　)3. Peter donated(捐献) 144 books to 4 schools. The numbers of books that each school got was different. The difference between School A and School B was 4, between School B and School C was 3, between School C and School D was 2. School A got the most books, but the number was less than 40. How many books did School D get?
A. 36.
B. 34.
C. 37.
D. 35.

英数真题探究(2)
一、1~5 CBDAB
二、20
平行四边形的面积等于小直角三角形的面积，为大直角三角形面积的三分之一。

(　　　)4. I have as many brothers as sisters. But each of my brothers has twice the number of sisters as brothers. How many children are there in my family?
A. Seven.
B. Five.
C. Six.
D. Eight.

英数真题探究(2)
一、1~5 CBDAB
二、20
平行四边形的面积等于小直角三角形的面积，为大直角三角形面积的三分之一。

(　　　)5. A snail climbs a 10 - meter well(井). It climbs 3 meters up during the day and falls down 2 meters in the evening. How many days does it take for the snail to climb out of this well?
A. Ten.
B. Eight.
C. Seven.
D. Four.

英数真题探究(2)
一、1~5 CBDAB
二、20
平行四边形的面积等于小直角三角形的面积，为大直角三角形面积的三分之一。

The right - angled triangle below has an area of 60. $\angle CBA = 60^{\circ}$. Fold the triangle to make A overlap E, and then cut the remaining(剩余的) piece to get a double layered(双层的) triangle. If we cut the double layered triangle at point E, so when it unfolds, it makes a parallelogram(平行四边形). What is the area of the parallelogram? ________
C 　　　　
　　　　　　　　　　　　　　　　　　　　　　
　　　　　　　　　　　　　　
DD
　　　　　　　　　　　　　　
A□　　　　BAB

英数真题探究(2)
一、1~5 CBDAB
二、20
平行四边形的面积等于小直角三角形的面积，为大直角三角形面积的三分之一。